Bergen Community College 400 Paramus Road Paramus, NJ 07652

Transcription

1 Steven Winter Associates, Inc. 293 Route 18, Suite 330 Telephone (866) Building Systems Consultants East Brunswick, NJ Facsimile (203) June 9, 2010 Local Government Energy Program Energy Audit Final Report Bergen Community College 400 Paramus Road Paramus, NJ Project Number: LGEA51

2 TABLE OF CONTENTS EXECUTIVE SUMMARY... 3 INTRODUCTION... 6 HISTORICAL ENERGY CONSUMPTION... 7 EXISTING FACILITY AND SYSTEMS DESCRIPTION...24 PITKIN EDUCATION CENTER WEST HALL ENDER HALL TECHNOLOGY EDUCATION BUILDING CIARCO LEARNING CENTER PROPOSED ENERGY CONSERVATION MEASURES...70 PROPOSED FURTHER RECOMMENDATIONS APPENDIX A: EQUIPMENT LIST APPENDIX B: LIGHTING STUDY APPENDIX C: THIRD PARTY ENERGY SUPPLIERS APPENDIX D: GLOSSARY AND METHOD OF CALCULATIONS APPENDIX E: STATEMENT OF ENERGY PERFORMANCE FROM ENERGY STAR APPENDIX F: INCENTIVE PROGRAMS APPENDIX G: ENERGY CONSERVATION MEASURES APPENDIX H: INDIVIDUAL ECMS IN ORDER OF PAYBACK PERIOD APPENDIX I: COLOR DECODER FOR USE WITH APPENDICES APPENDIX J: PHOTOVOLTAIC SHADING ANALYSIS APPENDIX K: METHOD OF ANALYSIS Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 2/206

3 EXECUTIVE SUMMARY Bergen Community College is a campus that has five separate buildings, comprising a total conditioned floor area of 825,000 square feet. Each building was built and renovated as the campus expanded. The following chart provides an overview of current energy usage in the buildings based on the analysis period of March 2008 through February 2009 as well as the proposed savings resulting from implementation of suggested energy conservation measures: Table 1: Bergen Community College Energy Usage Statistics Electric Gas Usage Usage (Therms/year) (kwh/year) Current Annual Cost of Energy ($/year) Site Energy Use Intensity (kbtu/sqftyear) Joint Energy Consumption (MMBtu/year) Current 15,477, ,814 2,072, ,987 Proposed 12,746, ,830 1,493, ,470 Savings 2,730,981 51, , ,517 % Savings *The Solar Photovoltaic system recommendation is excluded from this table **Total Annual Cost savings is equal to energy cost savings plus incurred operations and maintenance savings Table 2: Bergen Community College Proposed Maximum Renewable Energy Systems Total Initial Electricity Demand Total Recommended SRECs earned Investment, Generated, Reduction Revenue System $ (kwh/year) (kw) (SRECs/year) ($/year) Capacity 1.02 MW Solar 7,650,000 1,182,493 1, ,182 *$877,549 PV *Revenue generated from producing electricity and collecting Solar Renewable Energy Credits (SRECs) has been factored into the total revenue. In addition to the recommended Energy Conservation Measures (ECMs), it may also be necessary to increase facility funding as well as increase staff to ensure that all measures are implemented and maintained as recommended. There may be energy procurement opportunities for Bergen Community College to reduce annual utility costs, which are $30,470 higher when compared to the average estimated NJ commercial utility rates. SWA assumes that the average electric rate for commercial buildings in NJ is $0.150/kWh and the average natural gas rate is $1.550/therm, based on current energy prices and similar commercial buildings audited in the previous 24 months. SWA recommends that the Bergen Community College further negotiate with their natural gas third-party supplier in order to reduce the natural gas rate at both the Main Campus and Ciarco Learning Center and ultimately reduce the annual cost of energy. SWA has also entered energy information about the Bergen Community College in the U.S. Environmental Protection Agency s (EPA) Energy Star Portfolio Manager energy benchmarking system. The entire campus is comprised of non-eligible ( Other ) space type. An energy performance score cannot be generated for campus-level buildings. Portfolio Manager computed that the entire campus Site Energy Use Intensity (SEUI) to be 98.0 kbtu/sqft-year, which is better than the average comparable campus (SEUI) of by 18%. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 3/206

4 Based on the current state of the building and its energy use, SWA recommends implementing various energy conservation measures from the savings detailed in Table 1 as well as the installation of renewable energy systems detailed in Table 2. The measures are categorized by the payback period in Table 3 below: Table 3: Energy Conservation Measure Recommendations* ECMs Simple Initial Savings Payback CO2 Savings, Investment, ($) Period lbs/yr $ (years) 0-5 Year 430, ,015,044 3,136, Year 125, ,066,478 1,019,063 >10 Year 22, , ,811 Solar PV 877, ,630,000 1,620,015 Total 1,456, ,990,865 5,969,669 SWA estimates that implementing the recommended ECMs is equivalent to removing approximately 481 cars from the roads each year or avoiding the need of 14,099 trees to absorb the annual CO 2 generated. Other recommendations to increase building efficiency pertaining to operations and maintenance and capital improvements are listed below: Further Recommendations: SWA recommends that Bergen Community College further explore the following: Capital Improvements o Replace electric baseboard and electric cabinet heaters o Review supply air quantities from central plant air handling units o Upgrade Building Automation System (BAS) o Install combined heat, cool and power system (tri-generation) o Install wireless sub-meters for electricity and gas o Replace air handling units o Replace rooftop package units o Replace exhaust fans o Install premium efficiency motors Operations and Maintenance o Shut down kitchen hood fans during unoccupied hours o Remove lab hood fan from above Science Classroom o Confirm the operation of the intake and exhaust dampers on the air handling units o Confirm the night setback temperature set-points for all HVAC equipment o Reset temperature set-point for the Elevator Room in West Hall o Inspect and replace gaskets around doors for walk-in refrigerator and for walk-in freezers o Check water levels in the expansion tanks, and check the integrity of the tank bladder Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 4/206

5 o o o o o o o o o Use Energy Star labeled appliances Provide easy access to all mechanical equipment Maintain roofs Maintain downspouts Provide weather-stripping/air-sealing Repair/seal wall cracks and penetrations Provide water-efficient fixture aerators and sensors Use smart power electric strips Create an energy educational program Financial Incentives and Other Program Opportunities There are various incentive programs that Bergen Community College could apply for that could also help lower the cost of installing the ECMs. SWA recommends that Bergen Community College apply to participate in the SmartStart and Pay-for-Performance programs through the New Jersey Office of Clean Energy. Bergen Community College meets the requirements to participate in the Pay-for-Performance program based on its size and projection to reduce energy consumption by at least 15%. Bergen Community College would not be eligible to participate in the Direct Install program since the buildings involved in the study have at least one month with an electrical demand of greater than 200 kw. Please refer to Appendix F for details. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 5/206

6 INTRODUCTION Launched in 2008, the LGEA Program provides subsidized energy audits for municipal and local government-owned facilities, including offices, courtrooms, town halls, police and fire stations, sanitation buildings, transportation structures, schools and community centers. The Program will subsidize up to 100% of the cost of the audit. The Board of Public Utilities (BPUs) Office of Clean Energy has assigned TRC Solutions to administer the Program. Steven Winter Associates, Inc. (SWA) is a 37-year-old architectural/engineering research and consulting firm, with specialized expertise in green technologies and procedures that improve the safety, performance, and cost effectiveness of buildings. SWA has a long-standing commitment to creating energy-efficient, cost-saving and resource-conserving buildings. As consultants on the built environment, SWA works closely with architects, developers, builders, and local, state, and federal agencies to develop and apply sustainable, whole building strategies in a wide variety of building types: commercial, residential, educational and institutional. SWA performed an energy audit and assessment for five buildings that are owned by Bergen Community College. The audit included a review of the: Pitkin Education Center (400 Paramus Road, Paramus, NJ) West Hall (400 Paramus Road, Paramus, NJ) Ender Hall (400 Paramus Road, Paramus, NJ) Technology Education Building (400 Paramus Road, Paramus, NJ) Ciarco Learning Center (355 Main Street, Hackensack, NJ) The process of the audit included multiple facility visits from January 2010 through February 2010, benchmarking and energy bills analysis, assessment of existing conditions, energy modeling, energy conservation measures and other recommendations for improvements. The scope of work includes providing a summary of current building conditions, current operating costs, potential savings, and investment costs to achieve these savings. The facility description includes energy usage, occupancy profiles and current building systems along with a detailed inventory of building energy systems, recommendations for improvement and recommendations for energy purchasing and procurement strategies. The goal of this Local Government Energy Audit (LGEA) is to provide sufficient information to Bergen Community College to make decisions regarding the implementation of the most appropriate and most cost-effective energy conservation measures for all audited campus buildings. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 6/206

7 HISTORICAL ENERGY CONSUMPTION Energy usage, load profile and cost analysis SWA reviewed utility bills from February 2007 through February 2009 that were received from the utility companies supplying Bergen Community College with electricity and natural gas. A 12-month period of analysis from March 2008 through February 2009 was used for all calculations and for purposes of benchmarking the building. The Main Campus located at 400 Paramus Road, Paramus, NJ consists of the Pitkin Education Center, West Hall, Ender Hall and the Technology Building. All buildings located at the Main Campus are connected to a single meter for electricity and a single meter for Natural Gas. The Ciarco Learning Center building is located at 355 Main Street, Hackensack, NJ. Ciarco Learning Center contains 1 meter for electricity and 1 meter for natural gas. A separate analysis was conducted for each meter; thus a single billing analysis was completed for all Main Campus buildings and a separate analysis was completed for Ciarco Learning Center. Main Campus Electricity - The Main Campus is currently served by one electric meter. The Main Campus currently buys electricity from Hess Corporation, which is the third party supplier and PSE&G, which is the delivery company. The Main Campus previously purchased electricity from Pepco Energy Services, Inc., however the campus has switched to Hess within the past 12 months. Utility bills that were analyzed were received from Pepco. In total, the Main Campus purchases electricity at an average aggregated rate of $0.142/kWh. The Main Campus purchased approximately 14,605,180 kwh, or $2,072,259 worth of electricity, in the previous year. The average monthly demand was 2,810.3 kw and the annual peak demand was 3,484.3kW. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 7/206

8 Electric Usage (kwh) 1,600,000 1,400,000 1,200,000 1,000,000 Figure 1: Main Campus Annual Electric Usage (kwh) and Cost ($) 800, , , ,000 Annual Electric Usage (kwh) and Cost($) 0 Electric Usage (kwh) Estimated Baseload (kwh) Electric Cost $250,000 $200,000 $150,000 $100,000 $50,000 $0 Electric Cost ($) Mar-08 Apr-08 May-08 Jun-08 Jul-08 Aug-08 Sep-08 Oct-08 Nov-08 Dec-08 Date (Month-Year) Jan-09 Feb-09 Electric bill analysis shows that energy usage follows a trend line as expected throughout the year. Electricity usage peaks during the summer months when electricity is being used the most for cooling. There is a slight dip in August which is representative of the summer break for the school when classes are reduced to summer sessions only. Natural gas - The Main Campus is currently served by one meter for natural gas. The Main Campus currently buys natural gas from Pepco Energy Services, Inc., which is the third party supplier and PSE&G, which is the delivery company. The Main Campus previously purchased natural gas from Woodruff Energy Company; however the campus has switched to Pepco within the past 12 months. Utility bills that were analyzed were received from Woodruff. In total, the Main Campus purchases natural gas at an average aggregated rate of $1.642/therm. The Main Campus purchased approximately 281,755 therms, or $462,657 worth of natural gas, in the previous year. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 8/206

9 Natural Gas Usage (therms) Figure 2: Main Campus Annual Natural Gas Usage (therms) and Cost ($). 80,000 70,000 60,000 50,000 40,000 30,000 20,000 10,000 0 Annual Natural Gas(therms) and Cost($) Mar-08 Natural Gas Usage (therms) Estimated Baseload (therms) Natural Gas Cost Apr-08 May-08 Jun-08 Jul-08 Aug-08 Sep-08 Oct-08 Nov-08 Date (Month-Year) Dec-08 Jan-09 Feb-09 $120,000 $100,000 $80,000 $60,000 $40,000 $20,000 $0 Natural Gas Cost($) Natural gas analysis follows a trend line as expected, peaking during the winter months when natural gas is used mostly for space heating. Natural gas usage is minimal during the summer months, when space heating is not required. Natural gas is used for heating as well as base loads such as domestic hot water, cafeteria cooking and other minor uses. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 9/206

10 Figure 3: Main Campus Natural Gas Usage (therms) and Heating Degree Days (HDD) Natural Gas Usage (therms) vs. Heating Degree Days (HDD) Natural Gas Usage (therms) 100,000 90,000 80,000 70,000 60,000 50,000 40,000 30,000 20,000 10,000 0 Jan-00 May-07 Natural Gas Usage (therms) Heating Degree Days (HDD) Jul-07 Sep-07 Nov-07 Jan-08 Mar-08 May-08 Jul-08 Sep-08 Nov-08 Jan-09 1,200 1, HDD Date (Month-Year) Natural gas analysis in Figure 3 shows that gas usage closely follows the same pattern as Heating Degree Days (HDD). HDD is a metric used to indicate the amount of space heating required for a building based on outside air temperatures. HDD compares outside temperatures to a reference temperature that indicates a threshold for when a building requires heating. The following pie charts and table show energy use for the Main Campus based on utility bills for the 12-month analysis period. Note: electrical cost at $42/MMBtu of energy is more than 2. 5 times as expensive as natural gas at $16/MMBtu Electric Miscellaneous Electric For Cooling Electric For Heating Lighting Domestic Hot Water (Elec) Domestic Hot Water (Gas) Building Space Heating Totals Figure 4: Main Campus Annual Energy Consumption/Costs Annual Energy Consumption / Costs MMBtu % MMBtu $ % $ $/MMBtu 26,286 34% $1,093,079 43% 42 2,621 3% $108,992 4% 42 1,459 2% $60,671 2% 42 19,324 25% $803,571 32% % $2,348 0% 42 1,409 2% $23,137 1% 16 26,767 34% $439,536 17% 16 78, % $2,534, % Total Electric Usage Total Gas Usage Totals 49,833 64% $2,072,259 82% 42 28,175 36% $462,657 18% 16 78, % $2,534, % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 10/206

11 Figure 5: Main Campus Annual Energy Consumption (MMBtu) Annual Energy Consumption (MMBtu) Building Space Heating (Gas) Electric Miscellaneous Domestic Hot Water (Gas) Domestic Hot Water (Elec) Lighting Electric For Heating Electric For Cooling Figure 6: Main Campus Annual Energy Costs ($) Annual Energy Costs ($) Domestic Hot Water (Gas) Domestic Hot Water (Elec) Building Space Heating (Gas) Electric Miscellaneous Lighting Electric For Heating Electric For Cooling Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 11/206

12 Ciarco Learning Center Electricity - The Ciarco Learning Center is currently served by one electric meter. The Ciarco Learning Center currently buys electricity from Hess Corporation, which is the third party supplier and PSE&G which is the delivery company. The building previously purchased electricity from Pepco Energy Services, Inc., however the building has switched to Hess within the past 12 months. Utility bills that were analyzed were received from Pepco. In total, the building purchases electricity at an average aggregated rate of $0.148/kWh. The building purchased approximately 872,000 kwh, or $129,196 worth of electricity, in the previous year. The average monthly demand was kw and the annual peak demand was kw. Figure 7: Ciarco Annual Electric Usage (kwh) and Cost ($) Annual Electric Usage (kwh) and Cost($) Electric Usage (kwh) 120, ,000 80,000 60,000 40,000 20,000 0 Electric Usage (kwh) Estimated Baseload (kwh) Electric Cost $18,000 $16,000 $14,000 $12,000 $10,000 $8,000 $6,000 $4,000 $2,000 $0 Electric Cost ($) Mar-08 Apr-08 May-08 Jun-08 Jul-08 Aug-08 Sep-08 Oct-08 Nov-08 Date (Month-Year) Dec-08 Jan-09 Feb-09 Electric bill analysis shows that energy usage follows a trend line as expected throughout the year as shown in Figure 7. Electricity usage peaks during the summer months when electricity is being used the most for cooling. Natural gas - The Ciarco Learning Center is currently served by one meter for natural gas. The Ciarco Learning Center currently buys natural gas from Pepco Energy Services, Inc., which is the third party supplier and PSE&G, which is the delivery company. The building previously purchased natural gas from Woodruff Energy Company; however the building has switched to Pepco within the past 12 months. Utility bills that were analyzed were received from Woodruff. In total, the building purchases natural gas at an average aggregated rate of $1.766/therm. The building purchased approximately 21,059 therms, or $37,181 worth of natural gas, in the previous year. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 12/206

13 Figure 8: Ciarco Annual Natural Gas Use (therms) and Cost ($) Natural Gas Usage (therms) 6,000 5,000 4,000 3,000 2,000 1,000 0 Mar-08 Annual Natural Gas(therms) and Cost($) Natural Gas Usage (therms) Estimated Baseload (therms) Natural Gas Cost ($) Apr-08 May-08 Jun-08 Jul-08 Aug-08 Sep-08 Oct-08 Nov-08 Dec-08 Jan-09 Feb-09 $10,000 $9,000 $8,000 $7,000 $6,000 $5,000 $4,000 $3,000 $2,000 $1,000 $0 Natural Gas Cost($) Date (Month-Year) Natural gas analysis follows a trend line as expected, peaking during the winter months when natural gas is used mostly for space heating. Natural gas usage is minimal during the summer months, when space heating is not required. Natural gas is used for space heating as well as base loads such as domestic hot water. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 13/206

14 Figure 9: Ciarco Natural Gas Usage (therms) vs. Heating Degree Days (HDD) Natural Gas Usage (therms) Natural Gas Usage (therms) vs. Heating Degree Days 6,000 (HDD) Natural Gas Usage (therms) 5,000 Heating Degree Days (HDD) 4,000 3,000 2,000 1,000 0 Jan-00 May-07 Jul-07 Sep-07 Nov-07 Jan-08 Mar-08 May-08 Jul-08 Date (Month-Year) Sep-08 Nov-08 Jan-09 1,200 1, HDD Natural gas analysis in Figure 9 shows that gas usage closely follows the same pattern as Heating Degree Days (HDD). HDD is a metric used to indicate the amount of space heating required for a building based on outside air temperatures. HDD compares outside temperatures to a reference temperature that indicates a threshold for when a building requires heating. The following pie charts and table show energy use for the Ciarco Learning Center based on utility bills for the 12 month analysis period. Note: electrical cost at $43/MMBtu of energy is almost 2.5 times as expensive as natural gas at $18/MMBtu Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 14/206

15 Electric Miscellaneous Electric For Cooling Electric For Heating Lighting Domestic Hot Water (Gas) Building Space Heating Totals Figure 10: Ciarco Annual Energy Consumption/Costs Annual Energy Consumption / Costs MMBtu % MMBtu $ % $ $/MMBtu 1,278 25% $55,500 33% % $18,805 11% % $2,919 2% 43 1,197 24% $51,982 31% % $3,881 2% 18 1,886 37% $33,299 20% 18 5, % $166, % Total Electric Usage Total Gas Usage Totals 2,975 59% $129,196 78% 43 2,106 41% $37,181 22% 18 5, % $166, % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 15/206

16 Figure 11: Ciarco Annual Energy Consumption (MMBtu) Annual Energy Consumption (MMBtu) Building Space Heating (Gas) Electric Miscellaneous Electric For Cooling Domestic Hot Water (Gas) Lighting Electric For Heating Figure 12: Ciarco Annual Energy Costs ($) Annual Energy Costs ($) Domestic Hot Water (Gas) Building Space Heating (Gas) Electric Miscellaneous Lighting Electric For Cooling Electric For Heating Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 16/206

17 Energy benchmarking SWA has entered energy information about the Bergen Community College in the U.S. Environmental Protection Agency s (EPA) Energy Star Portfolio Manager energy benchmarking system. All five buildings were entered into Portfolio Manager as separate facilities but were benchmarked together as a single campus. Main Campus The Main Campus is categorized as a College/University ( Other ) space type. Because it is an Other space type, there is no performance rating available. Consequently, the Main Campus is not eligible to receive a national energy performance rating at this time. The national energy performance rating can only be calculated for buildings that are individually metered. The Site Energy Use Intensity is 98.0 kbtu/sqft-year, compared to the national average of a College/University (Campus-Level) consuming kbtu/sqft-year. See ECM section for guidance on how to improve the building s rating. Due to the nature of the calculation used by Portfolio Manager, based upon a survey of existing buildings of varying usage, the national average for Other space types is very subjective and is not an absolute bellwether for gauging performance. Additionally, should Bergen Community College desire to reach this average there are other large scale and financially less advantageous improvements that can be made, such as envelope, window, door and insulation upgrades that would help the building reach this goal. Site Energy Intensity (kbtu/sq ft.) Figure 13: Main Campus Site Energy Use Intensity (kbtu/sq ft.) Main Campus - Site Energy Intensity (kbtu/sq ft.) Mar-08 Apr-08 May-08 Gas Energy Intensity Electric Energy Intensity Jun-08 Jul-08 Aug-08 Sep-08 Oct-08 Date (Month-Year) Nov-08 Dec-08 Jan-09 Feb-09 Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 17/206

18 The above chart, Figure 13, shows the Site Energy Use Intensity per month for the Main Campus buildings. Total Site Energy Intensity increases during the winter months when more natural gas is required for space heating. Ciarco Learning Center Ciarco Learning Center s billing analysis was analyzed separately because the building is separate from the Main Campus and has its own electric and gas meters. For Portfolio Manager purposes only, Ciarco Learning Center was considered part of the campus. The benchmarking score therefore included the Ciarco Learning Center. Below is a graph showing the Site Energy Use Intensity for the Ciarco building independent from the Main Campus. Figure 14: Ciarco Site Energy Use Intensity (kbtu/sq ft.) Site Energy Intensity (kbtu/sq ft.) Mar-08 Ciarco - Site Energy Intensity (kbtu/sq ft.) Gas Energy Intensity Electric Energy Intensity Apr-08 May-08 Jun-08 Jul-08 Aug-08 Sep-08 Oct-08 Nov-08 Dec-08 Jan-09 Feb-09 Date (Month-Year) Total Site Energy Intensity increases during the winter months when more natural gas is required for space heating. There is also a minor peak during the winter months when electricity usage increases with building cooling loads. Per the LGEA program requirements, SWA has assisted Bergen Community College to create an Energy Star Portfolio Manager account and share the campus facilities information to allow future data to be added and tracked using the benchmarking tool. SWA has shared this Portfolio Manager Account information with Bergen Community College (user name of BERGENCOMMUNITYCOLLEGE with a password of BERGENCC ) and TRC Solutions. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 18/206

19 Tariff analysis As part of the utility bill analysis, SWA evaluated the current utility rates and tariffs. Tariffs are typically assigned to buildings based on size and building type. Tariff analysis is performed to determine if the rate that the college is contracted to pay with each utility provider is the best rate possible resulting in the lowest costs for electric and gas provision. Typically, the natural gas prices increase during the heating months when natural gas is used by the hot water boiler units. Some high gas price per therm fluctuations in the summer may be due to high energy costs that recently occurred and low use caps for the non-heating months. Typically, electricity prices also increase during the cooling months when electricity is used by the HVAC cooling equipment. The supplier charges a market-rate price based on use, and the billing does not break down demand costs for all periods because usage and demand are included in the rate. Currently, Bergen Community College is paying a general service rate for natural gas. Demand is not broken out in the bill. Thus the building pays for fixed costs such as meter reading charges during the summer months. The building is direct metered and currently purchases electricity at a general service rate for usage with an additional charge for electrical demand factored into each monthly bill. There general service rate for electric charges are marketrate based on use. Demand prices are reflected in the utility bills and can be verified by observing the price fluctuations throughout the year. Energy Procurement strategies The average estimated NJ commercial utility rates for electric are $0.150/kWh and $1.550/therm for gas. Main Campus Electricity - The Main Campus currently pays a rate of $0.142/kWh. The Main Campus annual electric utility costs are lower, when compared to the average estimated NJ commercial utility rates. Electric bill analysis shows fluctuations up to 15% over the most recent 12-month period. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 19/206

20 Figure 15: Main Campus Average Electric Price ($/kwh) and Monthly Peak Demand (kw) Average Electric Price vs. Monthly Peak Demand(kW) Electric Price ($/kwh) $0.16 $0.16 $0.15 $0.15 $0.14 $0.14 $0.13 $0.13 $0.12 Mar-08 Apr-08 May-08 Jun-08 Jul-08 Aug-08 Sep-08 Electric Rate ($/kwh) Average NJ rate ($/kwh) Electric Demand (kw) Oct-08 Nov-08 Dec-08 Jan-09 Feb-09 4, , , , , , , Electric Demand (kw) Date (Month-Year) The above chart, Figure 15, shows electricity costs throughout the year as compared to the NJ state average. The electricity costs are mostly below the average NJ state rate, except for when electric demand peaks, raising prices during the summer months. Natural Gas The Main Campus pays a rate of $1.642/therm. The Main Campus annual natural gas utility costs are $25,921 higher, when compared to the average estimated NJ commercial utility rates. Natural gas bill analysis shows fluctuations up to 97% over the most recent 12 month period. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 20/206

21 Figure 16: Main Campus Average Natural Gas Price ($/therm) Natural Gas Price ($/therm) $6.00 $5.00 $4.00 $3.00 $2.00 $1.00 $0.00 Mar-08 Annual Natural Gas Price ($/therm) Apr-08 Natural Gas Rate ($/therm) Average NJ rate ($/therm) May-08 Jun-08 Jul-08 Aug-08 Sep-08 Oct-08 Nov-08 Dec-08 Jan-09 Feb-09 Date (Month-Year) The above chart, Figure 16, shows that the natural gas costs are similar to the NJ state average except during November Utility rate fluctuations may have been caused by adjustments between estimated and actual meter readings; others may be due to unusually high and/or recent escalating energy costs. The Main Campus already purchases both electricity and natural gas from third-party suppliers. SWA recommends that the Main Campus further negotiate with their natural gas third-party supplier in order to reduce the natural gas rate and ultimately reduce the annual cost of energy. Appendix C contains a complete list of all third-party energy suppliers for Bergen Community College s service area. Ciarco Learning Center Electricity - The Ciarco Learning Center currently pays a rate of $0.148/kWh. The Ciarco Learning Center annual electric utility costs are lower, when compared to the average estimated NJ commercial utility rates. Electric bill analysis shows fluctuations up to 31% over the most recent 12-month period. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 21/206

22 Figure 17: Ciarco Average Electric Price ($/kwh) and Monthly Peak Demand (kw) Average Electric Price vs. Monthly Peak Demand(kW) Electric Price ($/kwh) $0.20 $0.18 $0.16 $0.14 $0.12 $0.10 $0.08 $0.06 $0.04 $0.02 $0.00 Mar-08 Apr-08 May-08 Jun-08 Jul-08 Aug-08 Electric Rate ($/kwh) Average NJ rate ($/kwh) Electric Demand (kw) Sep-08 Oct-08 Nov-08 Dec-08 Jan-09 Feb Electric Demand (kw) Date (Month-Year) The above chart, Figure 18, shows electricity costs throughout the year as compared to the NJ state average. The electricity costs are mostly below the average NJ state rate, except for when electric demand peaks, raising prices during the summer months. Natural Gas The Ciarco Learning Center pays a rate of $1.766/therm. The Ciarco Learning Center annual natural gas utility costs are $4,549 higher, when compared to the average estimated NJ commercial utility rates. Natural gas bill analysis shows fluctuations up to 99% over the most recent 12 month period. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 22/206

23 Figure 18: Ciarco Annual Natural Gas Price ($/therm) Natural Gas Price ($/therm) $18.00 $16.00 $14.00 $12.00 $10.00 $8.00 $6.00 $4.00 $2.00 $0.00 Mar-08 Apr-08 Annual Natural Gas Price ($/therm) May-08 Jun-08 Jul-08 Aug-08 Sep-08 Oct-08 Natural Gas Rate ($/therm) Average NJ rate ($/therm) Nov-08 Dec-08 Jan-09 Feb-09 Date (Month-Year) The above chart, Figure 16, shows that the natural gas costs are similar to the NJ state average except during June and August During this time, natural gas costs appear to increase since natural gas usage is at a minimum, however monthly supply and delivery charges remain the same, inflating the cost per unit. The month of July did not show any usage and therefore the cost per unit was assumed to be $0. Utility rate fluctuations may also have been caused by adjustments between estimated and actual meter readings; others may be due to unusual high and recent escalating energy costs. The Ciarco Learning Center already purchases both electricity and natural gas from thirdparty suppliers. SWA recommends that Bergen Community College further negotiate with their natural gas third-party supplier in order to reduce the natural gas rate at Ciarco Learning Center and ultimately reduce the annual cost of energy. Appendix C contains a complete list of all third-party energy suppliers for Bergen Community College service area and natural gas rates. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 23/206

24 EXISTING FACILITY AND SYSTEMS DESCRIPTION This section gives an overview of the current state of the facility and systems. The entire scope of work for Bergen Community College consisted of five buildings in total. Each building has been audited and evaluated independently of the others. Refer to the Proposed Further Recommendations section for specific recommendations for improvement. Pitkin Education Center Building Characteristics The three-story, 600,000 square feet Pitkin Education Center Building was built in the 1970s. Several additions through the years have changed and expanded the building to what is today. It houses a library, a gymnasium, a pool area with locker rooms and wings for administration, business and science. This was the most recent addition and it was completed in Building Occupancy Profiles Its occupancy is over 10,000 students, faculty and administrative personnel. It is open Monday through Friday from 6:00am until 11:00pm. Building Envelope Due to favorable weather conditions (min. 18 deg. F delta-t in/outside and no/low wind); some exterior envelope infrared (IR) images were taken during the field audit. Thermal imaging technology helps to identify energy-compromising problem areas in a noninvasive way. General Note: All findings and recommendations on the exterior envelope (base, walls, roofs, doors and windows) are based on the energy auditors experience and expertise, on construction document reviews (when available) and on detailed visual analysis, as far as accessibility and weather conditions allowed at the time of the field audit. Exterior Walls The exterior wall envelope is mostly constructed of a precast concrete panel system and some stucco accents over a steel frame with an unconfirmed level of detectable insulation. Other areas are constructed of brick veneer and some stone tile accents over a steel frame with 1-3 inches of fiberglass batt cavity insulation. The interior is mostly painted gypsum wallboard. Note: Most wall insulation levels could not be verified in the field or on construction plans, and are based upon similar wall types and time of construction. Exterior and interior wall surfaces were inspected during the field audit. They were found to be in overall acceptable, age-appropriate condition with numerous signs of Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 24/206

25 uncontrolled moisture, air-leakage and other energy-compromising issues detected on all facades The following specific exterior wall problem spots and areas were identified: The following IR images further demonstrate some of the exterior wall issues mentioned above: Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 25/206

26 Roof The building s roof is predominantly a flat and parapet type over steel decking with a built-up asphalt finish and gravel ballast. It is original but is gradually being replaced. Three inches of EPS (expanded polystyrene, white) foam board roof insulation were recorded. Other parts of the building are also covered by a flat and parapet type over steel decking with a dark colored EPDM single membrane finish. Three and a half inches of XPS (extruded polystyrene, blue or pink) foam board roof insulation, were recorded. The roofs, related flashing, gutters and downspouts were reported to be in overall acceptable, age-appropriate condition, but with numerous signs of uncontrolled moisture, air-leakage and other energy-compromising issues in some older roof areas. The following specific roof problem spots were identified: The following IR images further illustrate some of the roof issues mentioned above: Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 26/206

27 Base The building s base is composed of a partial below-grade basement with a slab floor, a perimeter foundation and no detectable slab edge/perimeter insulation. Slab/perimeter insulation levels could not be verified in the field or on construction plans and are based upon similar wall types and time of construction. The building s base and its perimeter were inspected for signs of uncontrolled moisture or water presence and other energy-compromising issues. Overall the base was reported to be in good condition with no signs of uncontrolled moisture, airleakage and/ or other energy-compromising issues. Windows The building contains two types of windows: 1. Fixed type windows with a non-insulated aluminum frame, clear single glazing and interior drapes or blinds in some classrooms. These windows are located throughout the building and are original to the building. 2. Fixed type windows with a non-insulated aluminum frame, tinted double glazing and interior drapes or blinds in some classrooms. The windows are located throughout the building. Windows, shading devices, sills, related flashing and caulking were inspected as far as accessibility allowed for signs of moisture, air-leakage and other energy compromising issues. Overall, the windows were found to be in acceptable/age appropriate condition but with numerous signs of uncontrolled moisture, air-leakage and/or other energy-compromising issues. The following specific window problem spots were identified: Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 27/206

28 The following IR image further illustrates some of the window issues mentioned above: Exterior Doors The building contains two different types of exterior doors: 1. Glass with aluminum/steel frame type exterior doors. They are located throughout the building and seem original/have never been replaced. 2. Aluminum type exterior doors. They are located throughout the building and seem original/have never been replaced. All exterior doors, thresholds, related flashing, caulking and weather-stripping were inspected for signs of moisture, air-leakage and other energy-compromising issues. Overall, the doors were found to be in poor condition with numerous signs of uncontrolled moisture, air-leakage and other energy-compromising issues. The following specific door problem spots were identified: Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 28/206

29 The following IR image further illustrates some of the door issues mentioned above: Building air-tightness Overall the field auditors found the building to be reasonably air-tight but with significant areas where there could be improvements, as described in more detail earlier in this section. The size of the cluster of this building makes small energy measures add up to substantial savings. In addition to all the above-mentioned findings, SWA recommends air-sealing, caulking and insulating around all structural members, recessed lighting fixtures, and electrical boxes that are part of or penetrate the exterior envelope and where airleakage can occur. The air tightness of buildings helps maximize all other implemented energy measures and investments, and minimizes potentially costly long-term maintenance, repair and replacement expenses. Mechanical Systems The original building was constructed in 1972 with central heating, ventilation, and airconditioning (HVAC). The central plant is located in the basement and part of the first floor houses chillers, boilers, and air handling units. Ducts and pipes are distributed throughout the campus in ceiling spaces or in underground trenches. Subsequent Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 29/206

30 additions in 1989 and later were either connected to the existing central plant, or designed with distributed, locally delivered HVAC. The equipment is generally turned on at 6am and runs through up to 10pm, 6 days a week. Swimming pool equipment is operated throughout the year, 24 hours a per day. Scattered throughout the building are enclosed wall mounted finned tube radiation heaters, baseboard heaters, cabinet heaters, and unit heaters in the corridors, vestibules, stairways and lobbies. Central Plant and Basement section: The central HVAC plant is in the basement along with a tunnel leading to loading docks. The central plant contains the main building chillers, boilers, pumps and central station air-handling units (AHUs). The AHUs serve various parts of other building sections are described in detail in the sections that follow. The plant has 4 electric chillers in all: 1) 1972 installed chiller is electric, water-cooled with condenser heat recovery at 105 deg F, R-11, centrifugal and rated for 800 tons. This 38 year-old chiller is past its service life of 23 years, as published in the 2007 ASHRAE HVAC Applications Handbook. This chiller is not used anymore and is just taking up space in the mechanical room. 2) 1992 installed chiller is electric, water-cooled with condenser heat recovery at 105 deg F, R-11, centrifugal and rated for 890 tons and is in good condition. This 18 year-old chiller has some years of service left, given that service life of chiller equipment as published in the 2007 ASHRAE HVAC Applications Handbook is 23 years. 3) 1996 installed chiller is electric, water-cooled with condenser heat recovery at 105 deg F, R-123, centrifugal and rated for 320 tons. It is rated for 0.62kW/ton at full load and in good condition. This 14 year-old chiller has some years of service left, given that service life of chiller equipment as published in the 2007 ASHRAE HVAC Applications Handbook is 23 years. 4) 2000 installed chiller is electric, water-cooled with condenser heat recovery at 105 deg F, R-123, centrifugal and rated for 500 tons. It is rated for 0.52kW/ton at full load and t is in good condition. This 10 year-old chiller has many years of service left, given that service life of chiller equipment as published in the 2007 ASHRAE HVAC Applications Handbook is 23 years. The chiller s heat rejection is used for building reheat or is discharged through a cooling tower via a condenser water loop. Heat recovered from the chillers is at 105 deg F and is not stored, rather directly injected into the hot water loop. The cooling tower is a 3-cell EVAPCO unit located outside the building on steel frame. Each cell utilizes a 30 HP blower connected to a VFD; the motor is rated at an estimated 94% efficiency. The VFD operates from the water temperature signal set at 80 deg F. The cooling tower is in good condition and is about 20% of the way through their estimated service life of 22 years according to the 2007 ASHRAE HVAC Applications Handbook. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 30/206

31 The plant has 8 boilers in all (numbered 1A, 1B, and 2 to 7), of which 1A and 1B are for domestic hot water heating and described in a later section. All boilers are generally in good and operating condition, and can be described as follows: Boiler #2 is rated for 1495MBH output at an estimated 80% efficiency. The boiler was installed in 1999 and has 15 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. It is in good condition and uses electronic temperature control devices. It is a sealed combustion unit with fan assisted combustion unit. This only serves the Admin area Modine units. Hot water is pumped from here into a large 20,000-gallon cast iron storage tank. Boiler #3 is rated for 1,495MBH output at an estimated 80% efficiency. The boiler was installed in 1999 and has 15 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. It is in good condition and uses electronic temperature control devices. It is a sealed combustion boiler fitted with a fan assisted combustion unit. This boiler serves the whole building heating except the admin area. Hot water is directly injected into the hot water loop. Boiler #4 is rated for 16,725MBH output at an estimated 80% efficiency. The boiler was installed in 2000 and has 14 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. It is in good condition and uses electronic temperature control devices. It is a sealed combustion boiler fitted with a fan assisted combustion unit. This boiler serves as a back-up for Boiler #3 and is sparingly used. Given the age and use of this boiler, replacement is not relevant. Boiler #5 and #6 are each rated for 603MBH output at an estimated 78% efficiency. Each boiler was installed in 1994 and has 8 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. They are in good condition and use electronic temperature control devices. These boilers are only used to preheat the outside air to the cafeteria AC-1U and AC-2U which originally used to have electric heaters. Boiler #6 is used sparingly as a back up to Boiler #5. Both boilers use glycol to avoid freezing when the outside air drawn into these units is at sub-freezing temperatures in extreme weather condition. Boiler #7 is rated for 1,105MBH output at an estimated 86% efficiency. This Power-Fin boiler is a high efficiency, sealed combustion unit that features a 5:1 turndown ratio to precisely match the firing rate to heating load requirements. The boiler was installed in 2005 and has 20 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. This boiler is only used to preheat the outside air to the main library unit AC-1L, which originally had an electric heater. This is a glycol heater as the coil is directly exposed to outside air. The boiler is largely oversized for its use because the Facility Management is planning to move the Boiler #5 and Boiler #6 loads to this high efficiency boiler. SWA agrees with this option. The hydronic system within the central plant utilizes many pumps and piping distributions systems. Many pumps are old, original to the building, past their service lives and are not used anymore. Other original pumps have been rewound to a lower Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 31/206

32 speed and have new motors, some of which are NEMA premium efficiency. The equipment inventory list in Appendix A details each pump, installation date, equipment served, and other details. Some pumps are connected to an emergency generator and only used as such. The main set of pumps P-1 to P-17 are used in the winter and summer only; 6 new pumps installed in 1996 which have premium efficiency motors are used during the shoulder seasons. SWA considered installing premium efficiency motors and VFDs on these pumps. The opportunity to benefit from VFD was limited because of the way systems are set up and because of low operating hours. The basement also includes a long tunnel leading to loading docks. The tunnel is ventilated by a large exhaust fan E-1A which is original to the building and must be replaced. Some of the existing systems are not original and consists of replacements or modifications. The building contains a Trane Tracer Summit Building Automation System (BAS) which is mostly Direct Digital Control but with remaining pneumatic actuators and controls. The BAS controls the heating and cooling plants and terminal equipment, including air handling units and VAV boxes. The heating and cooling equipment is scheduled for various seasons as follows: Summer Chilled water is delivered at 42ºF and there is no hot water generated from the boilers or chillers heat recovery Winter Hot water from boilers is delivered at 160ºF and there is no chilled water generated Shoulder months - Chilled water is delivered at 45ºF and hot water at 105ºF from the chiller heat rejection In general, there were no major building staff complaints in regards to the ability of the systems providing adequate heating and cooling to the building occupants. Some students did complain though about over-heating and cooling in some areas. SWA visited those areas and did not find any abnormal conditions during the visit. The facility has assigned an environmental engineer to further investigate this matter. Measurement or verification of the code compliance for ventilation was not part of this energy study. However, should any retro-commissioning or system upgrades be made as part of some capital improvement project, the scope should include readjustment of the outside air dampers at louvers, roof ventilator and other units to provide a code compliant level of outside air to the spaces. Administration Section: This three-story building section is original to the campus construction, and is connected to the central plant. The building was zoned for internal and building perimeter areas. Internal areas were served by conditioned air mixed with outside air for ventilation from unit AC-1A, which was subsequently removed. Perimeter areas were served from 4 pipes (2 each of CHW and HW) to 2 pipes connection Modine units, which were zoned to receive mixed water at any temperature from 42ºF to 115ºF to meet the local zone demand. The hot and chilled water mixes at these units through modulating pneumatic valves, which reportedly work well but are original. These units have a three-speed fan control that can be operated individually by room occupants, and they were equipped Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 32/206

33 with outside air intake dampers to allow for ventilation. The Modine units have no local temperature control from thermostats they are controlled from the central BAS and local sensors, set to maintain zones at 73ºF year round. Presently, two DX gas-fired rooftop package units AC-S-1 and AC-S-2 serve the first floor, and four Aaon DX gasfired rooftop units serve the second and third floors; unit AC-1A is removed. The first floor was gut renovated, disconnected from the central plant, and the Student section addition was built in Two DX gas-fired rooftop package units AC-S-1 and AC-S-2 now serve these areas with VAV boxes, providing each room with individual temperature control. The main units were designed to modulate the supply air quantity through inlet vane controlled vari-vane fans, which do not function as efficiently now as they should. These units are equipped with enthalpy controlled economizers to supply ASHRAE recommended minimum fresh air, which is mixed with the return air in an integral mixing box. Perimeter Modine units were replaced with electric baseboards for heating. These baseboards have built-in thermostats that turn on heat when cold drafts occur. The second and third floors are served from unit AC-1 and from the perimeter Modine units. In 2002, four Aaon DX gas-fired rooftop units were added to provide HVAC to the interior areas, and AC-1A was removed. The Aaon units have sensible heat recovery wheels, and are operated to allow 100% outside air with no recirculation. The units are also capable of recirculation of return air back to the spaces; this is normally done in the morning warm-up cycle when fresh air is not required as there is no occupancy. The Aaon units are controlled by central BAS to maintain 73 deg F temperatures in the main return air ducts. Modine units still exist on the perimeter to provide only heating and cooling, but no ventilation--the outside air dampers have been closed shut because outside vehicle fumes from the road were being sucked inside the building. The Aaon units were added to solve this problem. Library Section: This three-story building section was built in 1972 and ducted from the central station air handling unit, AC-1L located in the central plant. This unit is connected to the central heating and cooling plant. The supply air from this unit is served from hot and cold decks in hot and cold air ducts. Hot and cold air is mixed at the terminal paddle or sweep type VAV box providing each room with individual temperature control. These are constant air boxes for the most part, except that in summer the hot deck is closed (when the ambient air temperature is above 55ºF) and these function like true VAV boxes. Two central return air fans carry the air back to AC-1L through the ceiling plenum. Fresh air is mixed with the return air in an integral mixing box. The outside air dampers are not modulating and can supply only fixed amounts of fresh air or none at all. A large three-story building was added adjunct to the original building in 1989, and it is not connected to the central plant. Two DX gas-fired rooftop package units AC-L-1 and AC-L-4 serve this addition with terminal VAV boxes, providing each room with individual temperature control. The main units were designed to modulate the supply air quantity through inlet vane-controlled vari-vane fans, which do not function as efficiently as they were designed to function. The units themselves change from heating to cooling mode or vice versa depending on the main return air temperature signal, which is set at 72 deg F. These units are equipped with enthalpy-controlled economizers to supply ASHRAE recommended minimum fresh air, which is mixed with the return air in an integral mixing Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 33/206

34 box. Perimeter rooms are equipped with electric baseboards for heating, which have built-in thermostats. Supply air quantity for the original unit AC-1L was reduced after the new addition in 1989 reduced the building load. Subsequently, a VFD was added to this unit and set to run the fans at 80% speed to deliver reduced air quantity. The VFD does not have a modulating control pressure signal in the absence of VAVs to modulate the fan speed. College and Cafeteria Section: The first and second floors of this building section are served by central station air handling units, AC-1U and AC-2U, in the central plant. The third floor is served by three DX gas-fired rooftop package units RT-1, RT-2, and RT-3. The first and second floors of this building section were built in 1972 and ducted from central station air handling units, AC-1U and AC-2U, in the central plant. AC-1U is designed to serve perimeter areas, AC-2U for internal areas. Both units are supplied by the central heating and cooling plant. Individual return air fans carry the air back to respective units through the ceiling plenum. Fresh air is mixed with the return air from the two central return air fans that carry the air back to the units through the ceiling plenum. The perimeter zone on the second floor, which is the cafeteria, is served from 4 pipes (2 each of CHW and HW) to Modine units, zoned to receive mixed water at any temperature from 42ºF to 115ºF to meet the local zone demand. The hot and chilled water mixes at these units through modulating pneumatic valves, which reportedly work well but are original. These units are equipped with outside air intake dampers to allow for ventilation. The Modine units are controlled from the central BAS and room sensors. This system is set to maintain zones at 73ºF year round. The third floor was added to the college center section in 1996, and it is not connected to the central plant. Three DX gas-fired rooftop package units RT-1, RT-2, and RT-3 serve this floor with terminal VAV boxes, providing each room with individual temperature control in a master-slave arrangement. RT-1 serves internal areas, and RT-2 and 3 external areas, providing a good and efficient system. Further, the units themselves change from heating to cooling mode or vice versa depending on the main return air temperature signal, which is set at 72 deg F. The VAVs are fan-powered with hot water reheat coils. The primary air is introduced at 55 deg F, and reheated where required. These units are equipped with enthalpy-controlled economizers, and supply the ASHRAE recommended minimum fresh air mixed with the return air. Only this portion of the whole Pitkin building is controlled by a Honeywell BAS installed in 1996 that works as a standalone system. Other areas are integrated within the Trane BAS. Theater section: The theater HVAC system consists of two DX rooftop package units AC-T-1 and AC-T-2 that serve the auditorium and stage. These units supply cooling and ventilation only. The space temperature is set at 72 deg F. There is an additional unit, AC-T-3, which is a DX gas-fired rooftop package unit that provides heat to offices and administration areas. It is also set to switch automatically from heating to cooling mode based on the outside air temperature and building occupancy. The space temperature is set at 72 deg F. These units are equipped with enthalpy-controlled economizers to supply ASHRAE recommended minimum fresh air, which is mixed with the return air in an integral mixing Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 34/206

35 box. Perimeter rooms are equipped with electric baseboards, which have built in thermostats. Science Section: This three-story building section was built in 1972 and ducted from central station air handling units, AC-1SC and AC-2SC located in the central plant; the former serves the north portion and the latter the south portion of Science building. The units are supplied by the central heating and cooling plant. The supply air from these units is served from hot and cold decks in hot and cold air ducts. Hot and cold air is mixed at the terminal paddle or sweep type VAV box, providing each room with individual temperature control. These are constant air boxes for the most part, except that in summer the hot deck is closed (when the ambient air temperature is above 55 deg F) and these function like true VAV boxes. Two central return air fans carry the air back to the units through the ceiling plenum in many return air shafts. The main supply and return ducts are buried in the building trenches. Fresh air is mixed with the return air in an integral mixing box. The outside air dampers are not modulating, and can supply only fixed amounts of fresh air or none at all. A large two-story building addition was completed in 1989, on the second and third floors. This addition was built upon the existing first floor from 1972 and is not connected to the central plant. Two DX gas-fired rooftop package units AC-L-2 and AC-L-3 serve this addition with terminal VAV boxes, providing each room with individual temperature control for heating and cooling. The main units were designed to modulate the supply air quantity through inlet vane-controlled vari-vane fans, which do not function as efficiently as they were designed to function. The units themselves change from heating to cooling mode, or vice versa, depending on the main return air temperature signal, which is set at 72ºF. These units are equipped with enthalpy-controlled economizers to provide fresh air, which is mixed with the return air in an integral mixing box. Perimeter rooms are equipped with electric baseboards with built in thermostats. Supply air quantity for the original units AC-1SC and AC-2SC was reduced after the new addition in 1989 reduced the building load. Consequently, VFDs were added to these units and set to run the fans at 80% speed to deliver reduced air quantity. The VFDs do not have a modulating control pressure signal in the absence of VAVs to modulate the fan speed. Business Section: This three-story building section was built in 1972 and ducted from the central station air handling unit, AC-1BC, in the central plant. This unit has hot water coils supplied from central boilers, and chilled water coils supplied from central chillers. The supply air from this unit is served from hot and cold decks in hot and cold air ducts. Hot and cold air is mixed at the terminal paddle or sweep type VAV box providing each room with individual temperature control. These are constant air boxes for the most part, except that in summer the hot deck is closed (when the ambient air temperature is above 55 deg F), and these function like true VAV boxes. One central return air fan carries the air back to AC-1BC through the ceiling plenum. Fresh air is mixed with the return air in an integral mixing box. The outside air dampers are not modulating, and can supply only fixed amounts of fresh air or none at all. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 35/206

36 Some perimeter areas were served from 4 pipes (2 each of CHW and HW) to 2 pipes connection Modine units, which were zoned to receive mixed water at any temperature from 42ºF to 115ºF to meet the local zone demand. The hot and chilled water mixes at these units through modulating pneumatic valves, which reportedly work well but are original to the building. These units have a three-speed fan control that can be operated individually by room occupants, and they were equipped with outside air intake dampers to allow for ventilation. The Modine units have no local temperature control from thermostats they are controlled from the central BAS and local sensors set to maintain zones at 73ºF year round. The second and third floors of the business section were renovated in 2005, and all connections from the central plant were removed. The duct chase was run upside down, and the fan s speed in the main mechanical room was reduced to deliver only 75% of the original air quantity. Three DX gas-fired rooftop package units RTU-1, RTU-2, and RTU- 3 serve these floors with terminal VAV boxes, providing each room with individual temperature control in a master slave arrangement. The units themselves change from heating to cooling mode, or vice versa, depending on the main return air temperature signal, which is set at 72 deg F. The VAVs have hot water reheat coils. The primary air is introduced at 55 deg F, and reheated where required. These units are equipped with enthalpy-controlled economizers and supply the ASHRAE recommended minimum fresh air mixed with the return air. Modine units were removed. Gymnasium: The gymnasium contains six air handling units manufactured by Trane and equipped with hot and chilled water coils to serve various spaces. All units are original, and were installed in They are past their service lives and must be replaced. The units serving the gymnasium itself have recently been equipped with Variable Frequency Drives that speed down the fans during unoccupied hours. There are some old, roof-mounted gymnasium exhaust fans which are in need of replacement, as they are past the service lives. Natatorium: The swimming pool contains many types of HVAC equipment. There are two DX air handling units, which are about 10 years old. One is a McQuay, which serves the locker rooms and seating areas; the other is a Zephyr which serves the pool area itself. Both units have compressors, and heat recovery options; the heat recovered is used to reheat the supply air. Both units also have hot water coils for supply air reheat. In addition, the Zephyr Poolpak unit is connected to an outside condensing unit for excess heat removal. Swimming pool air is maintained at 85ºF and 50% RH by a combination of thermostat and humidistat. Actual humidity in the pool was reported to be around 60%, despite the humidistat setting of 50%. A Trane chiller is sitting in the mechanical room - installation is yet to be completed, and it is not in use once installed, it will help to bring the humidity down to the desired level. The Zephyr unit is not working as efficiently as designed and must be replaced, as it has reached the end of its useful life. The McQuay unit is good for another five years, at least. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 36/206

37 Each AHU is connected to a return air fan, manufactured by Trane and originally installed in 1972, but rebuilt only two weeks ago. The units draw a total of 8000cfm outside air for pool ventilation, which is generally exhausted by roof-mounted, mushroom type exhaust fans, which are original. The pool water heater is rated for 399MBH input at estimated 78% efficiency. The boiler was installed in Given its age, the heater has 14 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. The pool HVAC heater is rated for 800 MBH output at an estimated 80% efficiency. The boiler was installed in Given its age, the heater has 15 years remaining on its expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. Both heaters are gas-fired and in good condition. The pool water is maintained at 82ºF. A set of two Taco pumps circulate approximately 600 GPM through the pool, regardless of whether the pool is in use or not, 24/7. The pump motors were replaced about five years ago and are in good condition. The pool HVAC systems are operated for 8760 hours because of thermal inertia reportedly, it takes a day to bring the temperature up or down by 2ºF consequently, the HVAC system is always left on. A manually-operated pool cover exists, but it is not used due to the lack of operating staff at 10pm and at 5am. Domestic Hot Water As discussed in the heating section, Boiler #1A and 1B function as domestic water heaters supplying the majority of the building. They are located in the main mechanical room in the basement. Each is rated for 300MBH gas input at an estimated 82% efficiency. The boiler was installed in Its expected service life is 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. Domestic Hot Water is stored into a large 20,000 gallon cast iron storage tank before being supplied the building. The concrete lining of this tank is coming apart, and so the facility has procured 2 new 1000 gallons tanks that will replace the old tank. The new tanks are being installed at the present time. Besides the gas-fired domestic hot water heaters in the central plant, there are two electric water heaters. An AO Smith, 6kW, 50 gallon tank electric heater serves the dental lab only. A Hubbell, 54kW, 400 gallon tank electric heater serves the Theater section restrooms only. Electrical Systems Lighting See the attached lighting schedule in Appendix B for a complete lighting inventory throughout the building, and estimated power consumption. Interior Lighting The Pitkin Education Center contains mostly modern and efficient lighting, with a limited amount of inefficient lighting still present. A majority of the Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 37/206

38 building consists of T5 and T8 fluorescent fixtures of various lengths with electronic ballast and Compact Fluorescent Lamps (CFLs). Additionally, there are also metal halide fixtures installed in the building. Exit Lights - Exit signs were found to be a mix LED type and fluorescents. Exterior Lighting - The exterior lighting surveyed during the building audit was found to be a combination of metal halide, halogen, high pressure sodium and CFL fixtures. Garage and Exterior Parking - The parking lights surveyed during the building audit were found to be 400W high pressure sodium fixtures. Appliances and process equipment Commercial Kitchen Equipment There are two walk-in refrigerators located in the kitchen, room C207 that are in good condition. The walk-in freezer located in the basement is in good condition too. The kitchen also contains three tall, two-door, commercial reach-in refrigerators, and two tall, four-door, commercial reach-in freezers; all are manufactured by Traulsen and are in good condition. There is one ice maker, manufactured by Manitowoc Ice, Inc., model B570, ice maker, which makes ice without storage and is in good condition. The kitchen room C209 contains one tall, two-door, commercial refrigerator, one tall, three-door, commercial refrigerator, and one tall, four-door, commercial freezer. All units are manufactured by Traulsen. The kitchen also contains several pieces of commercial-style cooking equipment, including a gas-fired, six-burner oven range with griddle, fryers, wok, and convection ovens. All equipment is gas-fired. There is a large kitchen hood provided for this equipment. Elevators There are six hydraulic elevators in the building that were installed and refurbished at different times in the past. Some of them are in good condition; however, some were observed in deteriorating condition. Other electrical systems There are five main electric transformers located within the building which step down 13200V to 480 V of different ratings. Four of these transformers were observed to be original to the building and no longer performing efficiently. Emergency Generator There is one 45KW diesel emergency generator in the gymnasium mechanical room, and it is manufactured by Onan. There are three diesel emergency generators located in the main electric room in the basement listed in the equipment inventory; Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 38/206

39 these are 85kW, 400W, and 115kW respectively. All generators were estimated to be installed in 1989 and are due for replacement soon. The generators serve emergency lighting and receptacles, cooling tower pan heaters, one boiler, one hot water circulating pump, the walk-in coolers and freezers, and the ejector pump. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 39/206

40 West Hall Building Characteristics The three-story, 60,000 square foot West Hall, Communication Arts Building was constructed in It houses computer labs, classrooms, office space, radio broadcast and teaching studio suites, and a 75-seat performance hall. Building Occupancy Profiles Its occupancy is approximately 400 students and faculty weekly, Monday through Friday. The building is open from 6am until 11pm, according to security personnel. Building Envelope Due to favorable weather conditions (min. 18 deg. F delta-t in/outside and no/low wind); some exterior envelope infrared (IR) images were taken during the field audit. Thermal imaging technology helps to identify energy-compromising problem areas in a noninvasive way. General Note: All findings and recommendations on the exterior envelope (base, walls, roofs, doors and windows) are based on the energy auditors experience and expertise, on construction document reviews (when available) and on detailed visual analysis, as far as accessibility and weather conditions allowed at the time of the field audit. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 40/206

41 Exterior Walls The exterior wall envelope is mostly constructed of brick veneer and some limestone type accents, over a steel frame with 3-1/2 inches of fiberglass batt cavity insulation. The interior is mostly painted gypsum wallboard. Exterior and interior wall surfaces were inspected during the field audit. They were found to be in overall good condition with no signs of uncontrolled moisture, airleakage or other energy-compromising issues. Roof The building s predominantly flat and parapet type roof is built on steel decking, with a dark-colored EPDM single membrane finish. It is original to the building and has never been replaced. There were zero inches of detectable attic/ceiling insulation, and four inches of foam board roof insulation were recorded. Roofs, related flashing, gutters and downspouts were inspected during the field audit. They were reported to be in overall good condition, with only a few signs of uncontrolled moisture, air-leakage or other energy-compromising issues. The following specific roof problem spots were identified: Base The building s base is composed of a below-grade slab floor with a perimeter footing with poured concrete foundation walls and no detectable slab edge/perimeter insulation. The building s base and its perimeter were inspected for signs of uncontrolled moisture or water presence and other energy-compromising issues. Overall, the base was reported to be in good condition with no signs of uncontrolled moisture, airleakage and/or other energy-compromising issues. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 41/206

42 Windows The building contains basically one type of window. 1. Fixed-type windows with an insulated aluminum frame, low-e coated/gasfilled, double-glazing and some interior or exterior shading devices. The windows are located throughout the building and are original. Windows, shading devices, sills, related flashing and caulking were inspected as far as accessibility allowed for signs of moisture, air-leakage and other energy compromising issues. Overall, the windows were found to be in good condition with no signs of uncontrolled moisture, air-leakage and/or other energy-compromising issues. Exterior Doors The building contains two different types of exterior doors. 1. Metal type exterior doors. They are located throughout the building and are original. All exterior doors, thresholds, related flashing, caulking and weather-stripping were inspected for signs of moisture, air-leakage, and other energy-compromising issues. Overall, the doors were found to be in good condition with only a few signs of uncontrolled moisture, air-leakage and/or other energy-compromising issues. The following specific door problem spots were identified: Building air-tightness Overall the field auditors found the building to be reasonably air-tight, considering the building's use and occupancy, as described in more detail earlier in this chapter. The air tightness of buildings helps maximize all other implemented energy measures and investments, and minimizes potentially costly long-term maintenance, repair and replacement expenses. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 42/206

43 Mechanical Systems The West Hall building was built in 2007 and therefore contains newer heating, cooling and ventilation equipment. The building contains one central hot water heating plant that supplies hot water to AHU-1, UH-1, UH-2, CUH-1, CUH-2, hot water baseboards and VAV boxes located throughout the building. Heating hot water is used for general space heating as well as gas reheat during the summer. The building s central hot water heating plant consists of two RBI boilers that are situated parallel to each other but piped in series to distribute hot water to circulation pumps before circulating throughout the building. The boilers are piped in series, causing both boilers to operate together and not in lead lag setup. Combined, the boilers have a total heating capacity of 1,879 MBH. Each boiler has a thermal efficiency of 82%; however they may not be operating efficiently since they are connected in series. The heating hot water system provides hot water baseboard heating to the perimeter areas, Stair-2, Stair-1, Vestibule 102A and Vestibule 202A. Hot water heating is also provided by UH-1 to Room W131 and Storage Room 132. Hot water heating is also provided by CUH-1 to Lounge 109 and by CUH-2 to Stair The hot water loop provides heating to AHU-1 and that provides heating to the entire first floor. AHU-1 provides heating as well as cooling. This unit is controlled by VFD controls on the supply fans. In addition to the central hot water heating plant, additional heat is provided by two gasfired rooftop units as well as one roof-mounted air handling unit. RTU-1 and RTU-2 have a combined heating capacity of 613 MBH and AHU-2 has a heating capacity of 410 MBH. All three units have a thermal efficiency of 81%. These rooftop units provide heating and cooling to the general spaces through ductwork and VAV boxes. The building contains three electric, convective heating units ECH-1, ECH-2 and EWH-1. These units provide heating to Vestibule 102A, Vestibule 202A and Stair Although these units are electric, they are rarely used and their replacement will not be cost effective. Their primary use is to prevent freezing in perimeter areas such as stairwells and vestibules. There are six condensing units that provide refrigerant cooling to evaporative units within the building. ACCU-1 and ACCU-2 are air cooled condensers that provide cooling to their respective air handling units. ACR-1 through ACR-6 are connected with evaporative units located in small spaces that have excessive heat loads such as the UPS room, elevator machine room and electrical rooms throughout the building. The entire cooling system is set to provide forced air cooling through ductwork and VAV boxes. Each VAV box is connected to the hot water loop and is equipped with a reheat coil. According to building staff, rooftop units are used primarily to pre-heat or pre-cool the building during the morning before occupancy increases. Once temperature set points are reached, the rooftop units are used minimally and the central hot water heating plant maintains the set points throughout the day. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 43/206

44 The entire heating, ventilation and cooling system is connected to a Building Automation System (BAS) module in the mechanical room. This module sends a signal to the Pitkin building where facility staff monitors HVAC conditions. The building contains programmable thermostats however these have all been disabled and the entire HVAC system is controlled by the central BAS. Domestic Hot Water The building contains one AO Smith Preferred domestic hot water heater. This unit has a heating capacity of 150 MBH, 100 gallons storage, gallon/hour recovery as well as 95% nameplate thermal efficiency. The unit is equipped with hot water recirculation and was observed to efficiently supply domestic hot water at 122ºF. Electrical Systems Lighting Appendix A contains a complete inventory of lighting through the building, estimated power consumption and proposed lighting schedules. Interior Lighting The West Hall building currently consists of mostly T8 fluorescent fixtures with electronic ballasts and compact fluorescent lamps (CFLs) in recessed can fixtures. There were some areas with incandescent or halogen bulbs which are inefficient. Based on measurements of lighting levels for each space, there are no vastly over-illuminated areas. There are many occupancy sensors already installed in classrooms, bathrooms, closets, and offices. Typically, occupancy sensors have an adjustable time delay that shuts down the lights automatically if no motion or sound is detected within a set time period. Exit Lights All exit signs were found to be efficient LED-type. Exterior Lighting The exterior lighting fixtures surveyed during the building audit were found to contain metal halide lamps. Exterior lighting is controlled by centrally located timers. During the site visit, exterior lights were observed on during daytime hours however maintenance staff noted that the exterior lights were being tested the day of the audit. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 44/206

45 Appliances and process equipment SWA has conducted a general survey of larger, installed equipment. Appliances and other miscellaneous equipment account for a significant portion of electrical usage within the building. Typically, appliances are referred to as plug-load equipment, since they are not inherent to the building s systems, but rather plug into an electrical outlet. Equipment such as process motors, computers, computer servers, radio and dispatch equipment, refrigerators, vending machines, printers, etc. all create an electrical load on the building that is hard to separate from the rest of the building s energy usage based on utility analysis. Building management should always consider purchasing Energy Star labeled equipment to ensure energy efficiency at the wall outlet. The building contained several snack and drink-vending machines. Some units were observed to have the Energy Star label and all units are assumed to be efficient based on the age of the building and equipment. Computers left on in the building consume a lot of energy. A typical desktop computer uses 65 to 250 watts when in use and the same amount of energy when the screen saver is left on. Televisions in meeting areas use approximately 3-5 watts of electricity when turned off. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 45/206

46 Elevators The West Hall building contains two Imperial hydraulic elevators. Each elevator is powered by a 30 HP AC motor. These units were observed in good condition which is appropriate for their age. Other electrical systems There are three GE, dry-type transformers located in the building. The units consist of 30.0 kva, kva and kva transformers and are in accordance with the most recent transformer efficiency guidelines. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 46/206

47 Ender Hall Building Characteristics The single-story (slab-on-grade), 64,000 square foot Ender Hall building, formerly called East Hall was the first academic building on campus. It was originally constructed in the 1970s with several additions and alterations throughout the years. It houses different classrooms, administrative offices, a 100-seat theater and a detached greenhouse. Building Occupancy Profiles Its occupancy is approximately 250 students and faculty Monday through Friday. The building is open from 6:00am until 11:00pm according to security personnel. Building Envelope Due to favorable weather conditions (min. 18 deg. F delta-t in/outside and no/low wind); some exterior envelope infrared (IR) images were taken during the field audit. Thermal imaging technology helps to identify energy-compromising problem areas in a noninvasive way. General Note: All findings and recommendations on the exterior envelope (base, walls, roofs, doors and windows) are based on the energy auditors experience and expertise, on construction document reviews (if available) and on detailed visual analysis, as far as accessibility and weather conditions allowed at the time of the field audit. Exterior Walls The exterior wall envelope is mostly constructed of a vertical metal panel system and some EIFS (Exterior Insulation Finishing System) accents, over a steel frame with 2- Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 47/206

48 1/2 inches of EPS (expanded polystyrene, white) insulation. The interior is mostly painted gypsum wallboard. Exterior and interior wall surfaces were inspected during the field audit. They were found to be in overall acceptable, age-appropriate condition with some signs of uncontrolled moisture, air-leakage and other energy-compromising issues detected on all facades. The following specific exterior wall problem spots and areas were identified: The following IR images further demonstrate some of the exterior wall issues mentioned above: Roof The building s roof is predominantly a flat, no parapet, type over steel decking, with a metal panel finish. It is original. There was no detectable attic/ceiling insulation and Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 48/206

49 two inches of under-roof deck applied open-cell spray foam roof insulation were recorded. Other parts of the building are also covered by a flat and parapet-type over steel decking with a dark colored EPDM single membrane finish. There was no detectable attic/ceiling insulation and two inches of under-roof deck applied open-cell spray foam roof insulation was assumed. Note: Roof insulation levels could not be verified in the field or on construction plans, and are based upon similar wall types and time of construction. Roofs, related flashing, gutters and downspouts were inspected during the field audit. They were reported to be in overall acceptable condition, with some signs of uncontrolled moisture, air-leakage and other energy-compromising issues. The following specific roof problem spots were identified: The following IR images further illustrate some of the roof issues mentioned above: Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 49/206

50 Base The building s base is composed of a slab-on-grade floor with a perimeter foundation and no detectable slab edge/perimeter insulation. The building s base and its perimeter were inspected for signs of uncontrolled moisture or water presence and other energy-compromising issues. Overall the base was reported to be in acceptable/age appropriate condition with no signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. Windows The building contains two different types of windows: 1. Fixed type windows with a non-insulated aluminum frame, tinted double glazing and various interior shading devices. 2. Fixed with awning type windows with a non-insulated aluminum frame, tinted single glazing and various interior shading devices. Windows, shading devices, sills, related flashing and caulking were inspected as far as accessibility allowed for signs of moisture, air-leakage and other energy compromising issues. Overall, the windows were found to be in acceptable/age appropriate condition with only a few signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. The following specific window problem spots were identified: Exterior Doors The building contains two basic types of exterior doors: 1. Glass with aluminum/steel frame type exterior doors: They are located throughout the building and are original. 2. Metal type exterior doors: They are located throughout the building and are original. All exterior doors, thresholds, related flashing, caulking and weather-stripping were inspected for signs of moisture, air-leakage and other energy-compromising issues. Overall, the doors were found to be in acceptable/ age appropriate condition with Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 50/206

51 some signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. The following specific door problem spots were identified: Building air-tightness Overall the field auditors found the building to be reasonably air-tight, considering the building's use and occupancy, as described in more detail earlier in this section. In addition to all the above mentioned findings, SWA recommends air-sealing, caulking and/or insulating around all structural members, recessed lighting fixtures, electrical boxes and chimney walls that are part of or penetrate the exterior envelope and where air-leakage can occur. The air tightness of buildings helps maximize all other implemented energy measures and investments, and minimizes potentially costly long-term maintenance, repair and replacement expenses. Mechanical Systems There are approximately twenty-seven DX gas-fired roof top package units with supply and return air ducted to the areas. All units are equipped with enthalpy controlled economizers and supply the ASHRAE recommended minimum fresh air mixed with the return air. Space temperatures are usually set at 72 deg F by local occupants from wallmounted thermostats. All the units are manufactured by Trane except one by Mammoth which was installed in Sixteen roof-top units were installed as far back as in They are 24 years old and past their service life of 15 years as published by the 2007 ASHRAE HVAC Applications Handbook. These units must be replaced as part of a capital improvement program. Other units were relatively new, all less than 10 years old and still have significant life remaining. These units are in good condition. Electric baseboard heaters are located under perimeter windows to prevent cold drafts. There are toilet exhaust fans, kitchen hood exhaust fans and general exhaust fans on roof. Most fans are old and were installed over 15 years ago, which is the expected service life. These fans must be replaced as part of a capital improvement program. The building is connected to Pitkin Trane direct digital Building Automation System which controls the heating and cooling equipment. The building has occupied, unoccupied, and night set back settings already incorporated into the BAS. In general, Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 51/206

52 there were no major complaints about the ability of the heating and cooling systems to provide adequate heating and/or cooling to the building occupants. Measurement or verification of the code compliance for ventilation was not part of this energy study. However, should any retro-commissioning or system upgrades be made part of some capital improvement project, the scope should include readjustment of outside air dampers at louvers, roof ventilator and other units to provide code compliant level of outside air to the spaces. Domestic Hot Water There are two gas-fired domestic hot water heaters in the building which are in good condition. Rheem Rudd DHW is 125 MBH input, with 84% efficiency, and 75 gallon hot water storage capacity. It was installed in AO Smith DHW is 154MBH input, with 80% efficiency, and 75 gallon hot water storage capacity. It was installed in Electrical Systems Lighting Appendix A contains a complete inventory of lighting throughout the building, estimated power consumption as well as proposed lighting schedules. Interior Lighting The Ender Hall building currently consists of mostly T8 fluorescent fixtures with electronic ballasts. Based on measurements of lighting levels for each space, there are no vastly over-illuminated areas. There are many occupancy sensors already installed in classrooms and offices. Typically, occupancy sensors have an adjustable time delay that shuts down the lights automatically if no motion or sound is detected within a set time period. Exit Signs Exit signs were found to be efficient LED-type. Exterior Lighting The exterior lighting fixtures surveyed during the building audit were found to contain metal halide lamps, low pressure sodium, high pressure sodium and incandescent bulbs. Appliances and process equipment SWA has conducted a general survey of larger, installed equipment. Appliances and other miscellaneous equipment account for a significant portion of electrical usage within the building. Typically, appliances are referred to as plug-load equipment, since they are not inherent to the building s systems, but rather plug into an electrical outlet. Equipment such as process motors, computers, computer servers, radio and dispatch equipment, refrigerators, vending machines, printers, etc. all create an electrical load on the building that is hard to separate out from the rest of the building s energy usage based on utility analysis. Building management should always consider purchasing Energy Star labeled equipment to ensure energy efficiency at the wall outlet. The building contained several snack and drink-vending machines. Some units were observed to have the Energy Star label. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 52/206

53 Computers left on in the building consume a lot of energy. A typical desktop computer uses 65 to 250 watts when on and uses the same amount of energy when the screen saver is left on. Televisions in meeting areas use approximately 3-5 watts of electricity when turned off. The Ender Hall building computers should be programmed for the power save mode, to shut down after a period of time that they are not used. Commercial Kitchen Equipment There is one Thermo-Kool, TQFM-50, walk-in refrigerator located in the Kitchen that is in good condition. There is also one walk-in-freezer inside the Kitchen manufactured by Thermo-Kool, Model TQFL-1. Both of these were installed in The kitchen also contains two tall four-door commercial reach-in refrigerators and one tall four-door commercial reach-in freezer; all are manufactured by Traulsen and are in good condition. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 53/206

54 The kitchen also contains several pieces of commercial-style cooking equipment, including four gas-fired 6-burner oven ranges with griddle, steamer and steam kettle, a fryer and two gas convection ovens. All equipment are gas-fired and in good condition. There are three large kitchen hoods with exhaust and make-up air fans (EF-1 to 3, and SF-1 to 3). The fans are interlocked and operated by the flick of a manual electric switch. The hoods are made by Vent Master, are state of the art and in good working conditions. There is one icemaker, manufactured by Manitowoc Ice, Inc., model QY0324A, 115/1/60, R404A, and MCA11.2, which makes ice without storage. It is in good condition. Elevators There are no elevators in the building. Other electrical systems There are four electric transformers located outside on grade. One of them (T-4) is new, while others (T-1,2,3) are old and assumed to be original to the building. These should be replaced. SWA estimated the old transformers were rated 500kVA, as there was no nameplate available. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 54/206

55 Technology Education Building Building Characteristics The two-story, 50,000 square foot Technology Education Center Building was built in It houses laboratories, a meeting and training center, class rooms, a full service kitchen and two observation domes. Building Occupancy Profiles Its occupancy is over 200 students, faculty and administrative personal. It is open Monday through Friday from 6am until 11pm, according to security personnel. Building Envelope Due to favorable weather conditions (min. 18ºF delta-t in/outside and no/low wind), some exterior envelope infrared (IR) images were taken during the field audit. Thermal imaging technology helps to identify energy-compromising problem areas in a noninvasive way. General Note: All findings and recommendations on the exterior envelope (base, walls, roofs, doors and windows) are based on the energy auditors experience and expertise, on construction document reviews (if available) and on detailed visual analysis, as far as accessibility and weather conditions allowed at the time of the field audit. Exterior Walls The exterior wall envelope is mostly constructed of brick veneer and some limestone type accents, over a steel frame with an unconfirmed level of insulation. The interior is mostly painted gypsum wallboard. Exterior and interior wall surfaces were inspected during the field audit. They were found to be in overall good condition with only a few signs of uncontrolled moisture, air-leakage or other energy-compromising issues. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 55/206

56 The following IR images demonstrate some of the exterior wall issues mentioned above: Roof The building s roof is predominantly a flat and parapet type over steel decking, with a mostly dark-colored EPDM single membrane finish. It is original to the building. Zero inches of detectable attic/ceiling insulation, and four inches of foam board roof insulation were recorded. Roofs, related flashing, gutters and downspouts were inspected during the field audit. They were reported to be in overall good condition, with only a few signs of uncontrolled moisture, air-leakage or other energy-compromising issues. The following specific roof problem spots were identified: Base The building s base is composed of a below-grade basement with a slab floor with a perimeter footing with poured concrete foundation walls and no detectable slab edge/perimeter insulation. The building s base and its perimeter were inspected for signs of uncontrolled moisture or water presence and other energy-compromising issues. Overall the base Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 56/206

57 was reported to be in good condition with no signs of uncontrolled moisture, airleakage and/ or other energy-compromising issues. Windows The building contains basically one type of window. 1. Fixed type windows with an insulated aluminum frame, low-e coated/gasfilled, double glazing and some interior or exterior shading devices. The windows are original and have never been replaced. Windows, shading devices, sills, related flashing and caulking were inspected as far as accessibility allowed for signs of moisture, air-leakage and other energy compromising issues. Overall, the windows were found to be in good condition with no signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. Exterior Doors The building contains two different types of exterior doors. 1. Glass with aluminum/steel frame type exterior doors. They are located on the main floor and are original/have never been replaced. 2. Metal type exterior doors. They are located throughout the building and are original/have never been replaced. All exterior doors, thresholds, related flashing, caulking and weather-stripping were inspected for signs of moisture, air-leakage and other energy-compromising issues. Overall, the doors were found to be in acceptable condition, with only a few signs of uncontrolled moisture, air-leakage and/ or other energy-compromising issues. The following specific door problem spots were identified: Building air-tightness Overall, the field auditors found the building to be reasonably air-tight with only a few areas of suggested improvements, as described in more detail earlier in this chapter. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 57/206

58 The air tightness of buildings helps maximize all other implemented energy measures and investments, and minimizes potentially costly long-term maintenance, repair and replacement expenses. Mechanical Systems The Technology Education building was built in 2002, and therefore contains newer heating, cooling and ventilation equipment. The building contains one central hot water heating plan that supplies hot water to VAV boxes located throughout the entire building as well as to UH-1, UH-2, CUH-1, CUH-2 and CUH-3. Heating hot water is used for general space heating, as well as gas reheat during the summer. The central hot water heating plant contains two Weil McLain gas-fired sectional boilers that are configured in a lead-lag setup. Each boiler has a dedicated circulation pump. P-2 is used as the lead pump, while P-1 is only used when the heating load is more than the capacity for P-1. The heating plant has a total heating input of 1,560 MBH with a thermal efficiency of 81%. The heating hot water system provides hot water heating to UH-1 and UH-2 located in the mechanical room, CUH-1 and CUH-2 located in the two stairwells and CUH-3 located in the vestibule near the South entrance of the building. In addition to the central hot water heating plant, additional heat is provided by eight gasfired rooftop units. RTU-1A and RTU-1B has a heating capacity of 284 MBH; RTU-2A has a heating capacity of 203 MBH; RTU-1C,1D,1E,2B,2C each have a heating capacity of 486 MBH. The units were observed in good condition, which is appropriate for their age. These rooftop units provide heating and cooling to the general spaces through ductwork and VAV boxes. There are two Liebert split system AC units that provide cooling to Rooms MDF 117B and Cont. 117B. Each AC unit has a cooling capacity of 14.1 MBH and is each equipped with 3.6 kw electric reheat. The rooftop units also provide R-22 refrigerant cooling to the entire building space through ductworks and VAV boxes. According to building staff, rooftop units are used primarily to pre-heat or pre-cool the building during the morning before occupancy increases. Once temperature set points are reached, the rooftop units are used minimally and the central hot water heating plant maintains the set points throughout the day. The entire heating, ventilation and cooling system is connected to a Building Automation System (BAS) module in the mechanical room. This module sends a signal to the Pitkin building where facility staff monitors HVAC conditions. The building contains Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 58/206

59 programmable thermostats, however these have all been disabled and the entire HVAC system is controlled by the central BAS system. Domestic Hot Water The building contains three separate domestic hot water heaters. DHW-1,2 are identical AO Smith atmospheric gas-fired hot water heaters, each with 199 MBH heating capacity and 100 gallons of storage. These units provide domestic hot water for all areas of the building except the pantry. DHW-3 provides domestic hot water to the pantry. This unit is a small-sized, MBH unit with a thermal efficiency of 82.4%. This unit has minimal storage; however it is connected directly to a 119 gallon storage tank adjacent to the unit. This unit was in age-appropriate condition. Electrical Systems Lighting Appendix A contains a complete inventory of lighting through the building, estimated power consumption as well as proposed lighting schedules. Interior Lighting The Technology building currently consists of mostly T8 fluorescent fixtures with electronic ballasts and compact fluorescent lamps (CFLs) in recessed can fixtures. There were some areas with incandescent bulbs that are inefficient. Based on measurements of lighting levels for each space, there are no vastly over-illuminated areas. There are many occupancy sensors located in classrooms, bathrooms, closets and offices. Typically, occupancy sensors have an adjustable time delay that shuts down the lights automatically if no motion or sound is detected within a set time period. Exit Signs Exit signs were found to be efficient LED-type. Exterior Lighting The exterior lighting fixtures surveyed during the building audit were found to contain metal halide lamps. Exterior lighting is controlled by centrally located timers. Appliances and process equipment SWA has conducted a general survey of larger, installed equipment. Appliances and other miscellaneous equipment account for a significant portion of electrical usage within the building. Typically, appliances are referred to as plug-load equipment, since they are not inherent to the building s systems, but rather plug into an electrical outlet. Equipment such as process motors, computers, computer servers, radio and dispatch equipment, refrigerators, vending machines, printers, etc. all create an Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 59/206

60 electrical load on the building that is hard to separate out from the rest of the building s energy usage based on utility analysis. The building contained several snack and drink-vending machines. Some units were observed to have the Energy Star label and all units are assumed to be efficient based on the age of the building and equipment. Computers left on in the building consume a lot of energy. A typical desk top computer uses 65 to 250 watts and uses the same amount of energy when the screen saver is left on. Televisions in meeting areas use approximately 3-5 watts of electricity when turned off. SWA recommends all computers and all appliances (i.e. coffee makers, televisions, etc) be plugged in to power strips and turned off each evening just as the lights are turned off. The Technology building computers should be programmed for the power save mode, to shut down after a period of time that they are not been used. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 60/206

61 Elevators The building contains a single hydraulic elevator. This unit was observed to be in good condition, as to be expected with the age of the equipment. Other electrical systems The building contains two GE transformers of size; kva and kva. These units were observed to be in good, age-appropriate condition. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 61/206

62 Ciarco Learning Center Building Characteristics The two-story with partial basement, 51,000 square feet Philip Ciarco Learning Center Building, formally the Arnold Constable Department Store, was purchased and renovated in It houses different classrooms, administrative offices and a common snack area. Building Occupancy Profiles Its occupancy is approximately 250 students and faculty weekly Monday through Friday. The building is open 6am until 11pm, according to security personnel. Building Envelope Due to favorable weather conditions (min. 18ºF delta-t in/outside and no/low wind), some exterior envelope infrared (IR) images were taken during the field audit. Thermal imaging technology helps to identify energy-compromising problem areas in a noninvasive way. General Note: All findings and recommendations on the exterior envelope (base, walls, roofs, doors and windows) are based on the energy auditors experience and expertise, on construction document reviews (if available) and on detailed visual analysis, as far as accessibility and weather conditions allowed at the time of the field audit. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 62/206

63 Exterior Walls The exterior wall envelope is mostly constructed of a cut stone veneer panel system with brick accents in the front areas, and brick veneer in the rear, over a steel and concrete block with an assumed three inches of fiberglass batt cavity insulation. The interior is mostly painted gypsum wallboard. Note: Wall insulation levels could not be verified in the field or on construction plans, and are based upon similar wall types and time of construction. Exterior and interior wall surfaces were inspected during the field audit. They were found to be in overall acceptable condition, with only a few signs of uncontrolled moisture, air-leakage or other energy-compromising issues located mostly at the front and right side of the building. The following specific exterior wall problem spots and areas were identified: The following IR images further demonstrate some of the exterior wall issues mentioned above: Roof The building s roof is predominantly a flat and parapet type over steel decking, with a dark-colored EPDM single membrane finish. It appears to have been installed fairly recently. Zero inches of detectable attic/ceiling insulation, and two and a half inches of XPS (extruded polystyrene, blue or pink) foam board roof insulation were recorded. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 63/206

64 Note: Roof insulation levels could not be verified in the field or on construction plans, and are based upon similar roof types and time of construction. Roofs, related flashing, gutters and downspouts were inspected during the field audit. They were reported to be in overall acceptable condition, with only a few signs of uncontrolled moisture, air-leakage or other energy-compromising issues. The following specific roof problem spots were identified: The following IR images further illustrate some of the roof issues mentioned above: Base The building s base is composed of a below-grade basement with a slab floor with a perimeter footing with concrete block foundation walls and no detectable slab edge/perimeter insulation. Slab/perimeter insulation levels could not be verified in the field or on construction plans, and are based upon similar wall types and time of construction. The building s base and its perimeter were inspected for signs of uncontrolled moisture or water presence and other energy-compromising issues. Overall the base was reported to be in acceptable/age appropriate condition, with only a few, uncritical signs of uncontrolled moisture, air-leakage and/ or other energycompromising issues. The following specific base problem spots were identified: Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 64/206

65 Windows The building contains two different types of windows. 1. Fixed type windows with a non-insulated aluminum frame, clear single glazing and some interior blinds. The windows are located mostly on the main floor and appear to be original. 2. Fixed type windows with an insulated aluminum frame, low-e coated/gasfilled, double glazing and some interior blinds. The windows are located mostly on the second floor and appear to be original. Windows, shading devices, sills, related flashing and caulking were inspected as far as accessibility allowed for signs of moisture, air-leakage and other energy compromising issues. Overall, the windows were found to be in acceptable condition with some signs of uncontrolled moisture, air-leakage and/ or other energycompromising issues. The following specific window problem spots were identified: The following IR images further illustrate some of the window issues mentioned above: Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 65/206

66 Exterior Doors The building contains only one basic type of exterior door. 1. Glass with aluminum/steel frame type exterior doors. They are located on the main floor and appear to be original. All exterior doors, thresholds, related flashing, caulking and weather-stripping were inspected for signs of moisture, air-leakage and other energy-compromising issues. Overall, the doors were found to be in acceptable/age appropriate condition with no signs of uncontrolled moisture, air-leakage and/or other energy-compromising issues. The following specific door problem spot was identified: Building air-tightness Overall, the field auditors found the building to be reasonably air-tight, with only a few areas of suggested improvements. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 66/206

67 The air tightness of buildings helps maximize all other implemented energy measures and investments, and minimizes potentially costly long-term maintenance, repair and replacement expenses. Mechanical Systems HVAC for this building is zoned for internal and external areas and consists of four DX gas-fired rooftop package units with terminal VAV boxes, providing each room with individual temperature control in a master-slave arrangement. The units are equipped with VFD and return duct-mounted carbon-dioxide sensors. The units themselves change from heating to cooling mode or vice versa depending on the main return air temperature signal, which is set at 72 deg F. The VAVs have hot water reheat coils. The primary air is introduced at 55 deg F, and reheated where required. These units are equipped with enthalpy-controlled economizers, and supply the ASHRAE recommended minimum fresh air mixed with the return air. These units are about 10 years old and in good condition. They still have about 30% life remaining. The rooftop units provide fresh air for ventilation to the building as per demand. There are toilet exhaust fans, and elevator room exhaust fan on roof. All are in good condition. Hot water baseboard heaters are located under perimeter windows to prevent cold drafts. These heaters are in good condition as well. There are also some hot water cabinet heaters in vestibules, and eight small hot water unit heaters to heat the basement. All equipment is in very good condition. Hot water is generated by two Raypak boilers located in the mechanical room in basement. Each is rated for 1,203 MBH output at estimated 80% efficiency. The boilers work in lead-lag fashion. It is very rare that two boilers would operate together, except in extreme temperatures below 0ºF. Each boiler was installed in 1998, and each boiler is only 11 years old. The boilers have 13 years remaining of their expected service life of 24 years, as published in the 2007 ASHRAE HVAC Applications Handbook for steel tube boilers. They are in good condition and use electronic temperature control. Hot water is pumped by a pipe-mounted hydraulic pump with a 3 hp motor, which is in good condition. The building contains a Honeywell direct digital Building Automation System, which controls the heating and cooling equipment and VAV boxes. It is tied to the Pitkin central Trane BAS. The building has occupied, unoccupied, and night set back settings already incorporated into the BAS. In general, there were no major complaints about the ability of the heating and cooling systems to provide adequate heating and/or cooling to the building occupants. Measurement or verification of the code compliance for ventilation was not part of this energy study. However, should any retro-commissioning or system upgrades be made part of some capital improvement project, the scope should include readjustment of outside air dampers at louvers, roof ventilator and other units to provide code compliant level of outside air to the spaces. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 67/206

68 Domestic Hot Water There is one small, electric, domestic hot water heater manufactured by AO Smith. The heater was not accessible; it only serves two bathrooms and is not a significant energy user. Electrical Systems Lighting Appendix B contains a complete inventory of lighting through the building, estimated power consumption, as well as proposed lighting schedules. Interior Lighting - The Ciarco Learning Center building currently contains mostly T8 fluorescent fixtures with electronic ballasts. Based on measurements of lighting levels for each space, there are no vastly over-illuminated areas. There are many occupancy sensors located in various classrooms and offices. Typically, occupancy sensors have an adjustable time delay that shuts down the lights automatically if no motion or sound is detected within a set time period. Exit Signs All exit signs were found to be efficient LED-type. Exterior Lighting The exterior lighting fixtures surveyed during the building audit were found to contain metal halide lamps. Exterior lighting is controlled by a centrally located timer. Appliances and process equipment SWA has conducted a general survey of larger, installed equipment. Appliances and other miscellaneous equipment account for a significant portion of electrical usage within the building. Typically, appliances are referred to as plug-load equipment, since they are not inherent to the building s systems, but rather plug into an electrical outlet. Equipment such as process motors, computers, computer servers, radio and dispatch equipment, refrigerators, vending machines, printers, etc. all create an electrical load on the building that is hard to separate out from the rest of the building s energy usage based on utility analysis. The building contained several snack and drink-vending machines. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 68/206

69 Computers left on in the building consume a lot of energy. A typical desktop computer uses 65 to 250 watts, and uses the same amount of energy when the screen saver is left on. Televisions in meeting areas use approximately 3-5 watts of electricity when turned off. The Ciarco Learning Center building computers are generally programmed for the power save mode, to shut down after a period of time that they have not been used. Elevators There are two elevators located in the building. The elevators were originally manufactured and installed by OTIS in These elevators are motor generator sets located in an elevator machine room on the roof. Although there would be some efficiency to be gained by replacing the MG sets with more modern SCR electronic driven equipment, the infrequent use of the elevator would yield insignificant energy savings. Other electrical systems There are no other major electrical systems impacting energy consumption or conservation at the building. There is no emergency generator at this building. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 69/206

70 PROPOSED ENERGY CONSERVATION MEASURES Energy Conservation Measures (ECMs) are recommendations determined for the building based on improvements over current building conditions. ECMs have been determined for the building based on installed cost, as well as energy and cost-savings opportunities. Where applicable, assumptions used for ECMs and specific details are listed on each individual ECM description page. Based on the size of the campus, the number of buildings involved and the number of ECMs recommended; SWA has compiled like ECMs into different groups based on similar application. The following Table 4 gives a summary of ECMs based on grouping. Table 4: Bergen Community College ECM Categories Category ECM Numbers Description Install Vending Misers on all soda and snack vending machines Provide Demand Control Ventilation using Carbon Dioxide sensors Install Variable Frequency Drives on Motors Building Lighting Upgrades Replace Existing Electric Water Heaters with Gas Water Heaters 6 56 Install Automatic Swimming Pool Cover Install NEMA Premium Efficiency Motors Install Heat Recovery Units Replace Electric Heaters in New Student Center Construction Replace Existing Domestic Water Heater with High Efficiency Unit Replace refrigerators with Energy Star units Install Photovoltaic Renewable Energy Panels Replace Existing Gas Boilers with Condensing Boilers Retro-commissioning of mechanical equipment Replace inefficient Transformers Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 70/206

71 ECM#1-5: Install Vending Misers on all soda and snack vending machines Description: Each building within the Bergen Community College contains vending machines that are leased through a third-party vendor. SWA recommends verification of all vending machines ENERGY STAR label before the purchase and installation of vending miser devices. When vending contracts are up for renewal SWA recommends requesting ENERGY STAR label vending machines. Energy vending miser devices are now available for conserving energy with these machines. There is not a need to purchase new machines to reduce operating costs and greenhouse gas emissions. When equipped with the vending miser devices, refrigerated beverage vending machines or coolers use less energy and are comparable in daily energy performance to new ENERGY STAR qualified machines. Vending miser devices incorporate innovative energy-saving technology into small plug-and-play devices that installs in minutes, either on the wall or on the vending machine. Vending miser devices use a Passive Infrared Sensor (PIR) to: Power down the machine when the surrounding area is vacant; Monitor the room's temperature; Automatically repower the cooling system at oneto three-hour intervals, independent of sales; Ensure the product stays cold. Snacks vending miser devices also use a Passive Infrared Sensor (PIR) to determine if there is anyone within 25 feet of the machine. It waits for 15 minutes of vacancy, then powers down the machine. If a customer approaches the machine while powered down, the snacks vending miser will sense the presence and immediately power up. Installation cost Estimated installed cost: $6,239 Source of cost estimate: Vending Miser, Similar Projects Economics: ECM # ECM Equipment est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % internal rate of return, % net present value, $ CO2 reduced, lbs/yr 1-5 Vending Misers 6, ,239 52, , , ,113 72,084 Assumptions: SWA calculated the savings for this measure using measurements taken the days of the field visits and using the billing analysis. SWA assumes operational hours based on field observations, billing analysis and staff interviews. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 71/206

72 Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean Energy Program (NJCEP) Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 72/206

73 ECM#6-10: Provide Demand Control Ventilation using Carbon Dioxide Sensors Description: The air handling units in Pitkin, Ciarco and Ender Hall contain large rooms such as cafeterias, libraries or gymnasiums and these provide a fixed amount of outside air during operational hours. Conditioning outside air can be a significant portion of the heating or cooling load. Demand control ventilation involves providing carbon dioxide (CO2) sensors in the occupied space or return ducts which can partially or totally shut down the outside air intake dampers in the air handling unit when the space is underutilized or unoccupied. The spaces mentioned above are used frequently but may also remain vacant for long periods during the day. By keeping the CO2 level less than 1000ppm within the conditioned space, the outside air is reduced to the minimum allowable in compliance with ASHRAE requirements. This control method can greatly reduce the heating or cooling load seen by the air handling unit and therefore save energy. Along with the sensors, necessary motorized air intake dampers will also have to be installed. Installation cost: Estimated installed cost: $34,700 Source of cost estimate: RS Means Cost Data & Similar Projects Economics: ECM # 6-10 ECM Equipment Heat Recovery Units est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ 34, ,700 29, , , , , ,268 life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % internal rate of return, % net present value, $ CO2 reduced, lbs/yr Assumptions: SWA calculated the savings for this measure using nameplate data and using the billing analysis. SWA estimated that the spaces are not utilized for 40% of the day; i.e. that fresh air load will be reduced by 40%. Therms savings are assumed to result for 4 winter months resulting from preheating the outside air, and kwh savings for 4 summer months by precooling the outside air. There are no savings assumed for the shoulder season. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 73/206

74 Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean Energy Program (NJCEP). Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 74/206

75 ECM#11-30: Install Variable Frequency Drives on Motors Description: Variable Frequency Drives (VFD) or Variable Speed Drives (VSD) allows users to gain advantage in both productivity improvements and reduced energy. A variable frequency drive is an electronic controller that adjusts the speed of an electric motor by regulating the power being delivered. Variable-frequency drives provide continuous control, matching motor speed to the specific demands of the work being performed. SWA identified many motors installed on pumps and air-handling units that would benefit by reducing speed through a VFD. In particular, the DX gas-fired rooftop units in Pitkin building were equipped with vari-vane control on supply fans to achieve reduced air quantity when the duct pressure increases. This system is over 20 years old and does not function as intended anymore. SWA recommends replacing this control system with VFDs operated from a pressure signal in the duct. For other equipment, it may be possible to control VFDs from the return duct temperatures. For example during the cooling season, it may be possible to set the VFD to run at only 80% speed normally and go to 90% speed if the return duct temperature climbs above 72ºF and to 100% if the temperature goes above 74ºF. Most equipment selected by SWA and listed under Assumptions below would benefit in this fashion. Installation cost: Estimated installed cost: $19,083 Source of cost estimate: Similar projects and DOE Motor Master International selection & savings analysis Economics: ECM # ECM Equipment est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % VFDs 56,270 37,188 19,083 89, , , , ,129 internal rate of return, % net present value, $ CO2 reduced, lbs/yr Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 75/206

76 Assumptions: SWA calculated the savings for this measure using nameplate data and using the billing analysis. Since most equipment did not have a means to control the VFD and therefore the speed a conservative 10% savings was estimated for each piece of equipment. Existing kwh was obtained using the DOE Motor Master International selection and calculator along with assumptions of operating hours. In general, the entire campus operates 6 days a week, except the administration areas. It was assumed that the buildings operate for 16 hours/day on weekdays and 10 hours on Saturday. The following table lists the hours assumed: Bldg. Hours Systems identified for replacement with premium efficiency motors Pitkin 768 P-12 Pitkin 1344 P-4 Pitkin 4160 AC-S-1 Supply fan, AC-S-1 Return fan, AC-S-2 Supply fan, AC-S-2 Return fan, AC-T-3 Pitkin 4576 AC-L-1 Supply fan, AC-L-1 Return fan, AC-L-4 Supply fan, AC-L-4 Return fan, AC-1U, R-1U, AC-3G Pitkin 4576 AC-L-2 Supply fan, AC-L-2 Return fan, AC-L-3 Supply fan, AC-L-3 Return fan, AC-1G, AC-2G Rebates/financial incentives: NJ Clean Energy SmartStart Program Premium Motors Incentive for three-phase motors, as follows: Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 76/206

77 ECM #31-53: Building Lighting Upgrades Description: Bergen Community College contains mostly modern and efficient lighting with a limited amount of inefficient lighting still present. The typical interior fixtures in most buildings are recently installed linear and U-shaped T8 electronically ballasted fixtures of various lengths and CFL s (Compact Fluorescent Lamp). Also present in some areas are linear T5 fixtures with electronic ballasts of various lengths as well as biaxial fluorescent fixtures. However, inefficient lighting such as T12 fixtures with magnetic ballasts, high bay metal halide and HPS (high pressure sodium), and incandescent fixtures were also observed. SWA recommends that the T8, T5, CFL and biaxial fluorescent fixtures should remain. The inefficient T12 fixtures with magnetic ballasts should be replaced with T8 electronic ballast fixtures, the incandescent fixtures should be replaced with CFL s and the high bay metal halide and HPS fixtures should be replaced with high bay T5 fixtures. Various interior lighting controls were observed as a majority of the lighting was controlled by manual switches; however, most of the public area lighting in the lobbies and corridors is controlled by circuit breakers with integrated timers. There are also numerous wall mounted occupancy sensors installed in various offices, classrooms and nurses stations and dimmer switches in some computer labs. In an effort to reduce usage SWA is making recommendations regarding controls in the form of occupancy sensor installation and bi-level stairwell lighting. Exit signs were found to be a mix of LED type and fluorescents. SWA recommends that the LED type remain and the replacement of all fluorescent exit lights with LED exit lights. The exterior lighting surveyed during the building audit was found to be a combination of metal halide, halogen, HPS, incandescent and CFL fixtures. SWA recommends that the CFL s remain, the replacement of the metal halide and HPS fixtures with pulse start metal halide fixtures and installing CFL s in place of the halogens and incandescent. The parking lights surveyed during the audit are observed to be a combination of single, double, triple and quadruple headed pole mounted fixtures and ceiling suspended high bay fixtures with metal halide and HPS lamps that SWA recommends replacing with pulse start metal halides. Exterior and Parking light are typically controlled by timers. See attached lighting schedule in Appendix A for a complete lighting inventory throughout the building and estimated power consumption. Installation cost Estimated installed cost: $885,148 Source of cost estimate: RS Means Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 77/206

78 Economics: ECM # ECM Equipment Building Lighting Upgrades est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ 944,183 59, ,148 1,680, , , ,729, ,069,984 2,301,782 life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % internal rate of return, % net present value, $ CO2 reduced, lbs/yr Assumptions: SWA calculated the savings for this measure using measurements taken the days of the field visits and using the billing analysis. SWA assumes operation cost savings based on avoided bulb replacement when upgrading to lighting that consists of longer rated burn hours. SWA assumes operational hours based on field observations, billing analysis and staff interviews. Rebates/financial incentives: NJ Clean Energy SmartStart Program Occupancy Sensors ($20 per sensor) NJ Clean Energy SmartStart Program T-5 and T8 lamps with electronic ballast in existing facilities ($15 per fixture) NJ Clean Energy SmartStart Program Metal Halide with Pulse Start ($25 per fixture) Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 78/206

79 ECM#54-55: Replace Existing Electric Water Heaters with Gas Water Heaters Description: Electric heaters are inefficient and expensive to operate since they use electricity. SWA identified an AO Smith 6kW electric water heater in the Dental Laboratory and a Hubbell 54kW electric domestic water heater serving the Theater section. Both heaters are located in Pitkin building and are in good condition. Despite this, SWA recommends replacing these heaters with gas-fired water heaters. Natural gas pipe is nearby for both and the flue can easily be extended to the outside. Installation cost Estimated installed cost: $9,200 Source of cost estimate: RS Means and similar projects Economics: ECM # ECM Equipment Electric to Gas DHW heaters est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ 9, ,200 34, , , , , ,744 life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % internal rate of return, % net present value, $ CO2 reduced, lbs/yr Assumptions: SWA calculated the savings for this measure using measurements taken the day of the field visit and using the billing analysis. SWA assumes that current electric DHW will be replaced with a new boiler with 85% efficiency. Rebates/financial incentives: NJ Clean Energy Natural Gas Water Heating, Gas-fired water heaters >50 gallons 300 MBH ($2.00 per MBH) Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 79/206

80 ECM#56: Install Automatic Swimming Pool Cover Description: Indoor swimming pools are big energy consumers. Pools lose energy in a variety of ways, but evaporation is by far the largest source of energy loss for swimming pools. The reason evaporation has such an impact is that evaporating water requires tremendous amounts of energy. It only takes 1 Btu to raise 1 pound of water 1ºF, but each pound of 80 F water that evaporates takes 1,048 Btu s of heat out of the pool. Indoor pools also require room ventilation to control indoor humidity caused by the large amount of evaporation. Without a proper ventilation system, high indoor humidity levels will cause numerous problems, including condensation on cold surfaces and rusting of structural components. The energy required to run this ventilation system adds to the cost of operating an indoor pool. Since evaporation is the major source of heat loss for swimming pools, SWA recommends installing an automatic pool cover to minimize evaporation. Pool covers on indoor pools reduce evaporation and consequently the need to ventilate indoor air and replace it with unconditioned outdoor air, saving large amounts of energy. Exhaust fans can be shut off when the pool is covered. Building maintenance is lowered by reducing humidity-related problems. Pool covers conserve make-up water by 30-50% and can reduce chemical consumption. Covers must be managed properly for safety. They should always be completely removed before anyone enters the pool. The automatic pool cover would require new stainless steel rails to be installed alongside the pool along with a stainless steel operating mechanism. Although the BAS could draw in and out the covers automatically with no human presence, for safety, it is recommended that a pool attendant does so by pressing a switch. This push button type switch will make it easy to cover and uncover the pool with minimal human intervention and could even be deployed during daytime when the pool is not in use. Installation cost: Estimated installed cost: $27,500 (includes 13,500 for labor) Source of cost estimate: Vendor Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 80/206

81 Economics: ECM # ECM Equipment est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % internal rate of return, % net present value, $ CO2 reduced, lbs/yr 56 Swimming Pool Cover 27, ,500 32, , ,820 7, , ,129 77,368 Assumptions: SWA calculated the savings for this measure using the Shah Method on an online calculator. Presently, the pool is uncovered and conditioned for 8760 hours in a year. It was assumed that the pool would remain uncovered for only 4000 hours after this measure is implemented. Pool water temperature is maintained at 82ºF and indoor air at 85ºF and 60% RH. Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean energy Program (NJCEP). Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 81/206

82 ECM#57-112: Install NEMA Premium Efficiency Motors Description: SWA discovered that many motors running the fans, air-handling units, pumps, and other rotating equipment were of standard efficiency and some were actually original from Electric motors have a significant impact on the total energy operating costs in a building, and may vary widely in terms of energy efficiency. The NEMA Premium program was established to assist users to optimize motor systems efficiency in light of power supply and utility deregulation issues. NEMA Premium motors and optimized systems reduce electrical consumption thereby reducing pollution associated with electrical power generation. Please see the list of equipment identified by SWA on the next page that would benefit from this ECM. Installation cost: Estimated installed cost: $87,241 Source of cost estimate: Similar projects and DOE Motor Master International selection & savings analysis Economics: ECM # ECM Equipment Motor Replacements est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ 94,494 7,253 87, , ,960 19, , , ,405 life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % internal rate of return, % net present value, $ CO2 reduced, lbs/yr Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 82/206

83 Assumptions: SWA calculated the savings for this measure using nameplate data and the billing analysis. The DOE Motor Master International selection and calculator was used to estimate existing and proposed efficiency improvements, along with assumptions of use hours. In general, the entire campus is used for 6 days a week, except the administration areas. It was assumed that the buildings operate for 16 hours/day on weekdays and 10 hours on Saturday. The following table lists the hours assumed: Bldg. Hours Systems identified for replacement with premium efficiency motor Pitkin 768 P-8, P-12 Pitkin 1344 P-4, P-15 Pitkin 1536 P-16 Pitkin 4160 AC-2A, E-1A, AC-S-1,AC-S-2, RTU-2A, RTU-2B, RTU-3A, RTU-3B Pitkin 4576 AC-1L, R-1L, AC-L-1, AC-L-4, AC-1U, R-1U, R-2U, E-4U, E-5U, RT-1, RT-2, RT-3, AC-1SC, R-1SC, AC-2SC Pitkin 4576 R-2SC, AC-L-2, AC-L-3, AC-1G, AC-3G, AC-4G, AC-5G, AC-6G, AC-T-3 Ciarco 4160 RT-1, RT-2, RT-3, RT-4, Hot water pumps West 1344 P-1, P-2 Tech 1536 P-2 Tech 768 P-1 Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 83/206

84 Rebates/financial incentives: NJ Clean Energy Premium Motors Incentive for three-phase motors, as follows: Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 84/206

85 ECM# : Install Heat Recovery Units Description: SWA noted three DX gas-fired RTUs at the Pitkin Building that deliver conditioned air into the corridors. It was found that the building exhaust is greater than building make-up (supply) air creating pressure differences that allow air movements. This situation can allow Bergen Community College to replace some existing exhaust fans with energy recovery ventilators that not only exhaust air, but also supply the building with an equivalent volume of air. Generally, heat recovery is intended to extract heat from exhaust air, prior to being exhausted. It can be recovered in a variety of ways one, by installing small fan powered air to air heat exchanger generally called a Heat Recovery Ventilator (HRV), or two, by installing a fan-powered, heat recovery unit with a rotating sensible heat recovery wheel called an Energy Recovery Ventilator (ERV), and three, by installing a simple air-to-air heat exchanger with no moving parts. SWA recommends using all three measures. It follows that the three DX gas-fired RTUs will not be required once this measure is implemented. SWA recommends replacing exhaust fans E-1L, E-2L, E-4U, E-5U, E-5G, E-8G, EF-T-4, and EF-1 (Ciarco) with simple, ceiling space mounted ERVs. Some of these roof-mounted fans are mushroom-type; the existing fan enclosure could be used as exhaust cap. It will require bringing a new, small fresh air duct to the ERV from the roof, or wall, which must be insulated. This measure will reduce the total exhaust air from the building. SWA recommends replacing exhaust fans E-6G and E-7G with fan-powered heat recovery units, complete with heat recovery wheels. These fans are generally large, and proper roof-mounted HRU would be required with substantial duct work. SWA recommends replacing the large kitchen hood exhaust fan, E-1U, with a heat recovery unit mounted on the roof, outside the fan room. As this fan is for kitchen hood, heat recovery wheels cannot be used; rather, a special, cleanable, sheet metal air-to-air heat exchanger would need to be deployed. The exhaust side could be powered with the existing fan; the supply side will need a new blower to deliver approximately 22,000 CFM of air. This partly conditioned air can be delivered to the building corridors, but requires substantial duct work. SWA recommends installing simple air-to-air heat exchangers between the following systems at Ender Hall: Air-to-air HEX between AC-1 and EF-3 and between HVAC-19 and EF-2. Conditioned air is being exhausted by these fans to the outside; at the same time, AC units are taking in fresh air from the outside for ventilation. Simple air-to-air heat exchangers consist only of sheet metal work and do not contain any moving parts. Installation cost: Estimated installed cost: $194,180 Source of cost estimate: RS Means and other projects Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 85/206

86 Economics: ECM # ECM Equipment Heat Recovery Units est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % 194, ,180 41, , , , , ,133 internal rate of return, % net present value, $ CO2 reduced, lbs/yr Assumptions: SWA calculated the savings for this measure using measurements taken the day of the field visit and using the billing analysis. Therms savings are assumed based on a winter period of four months and resulting from preheating the outside air. The kwh savings are assumed based on a summer period of four months and resulting from pre-cooling the outside air. There are no savings assumed for the shoulder seasons. Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean Energy Program (NJCEP). Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 86/206

87 ECM#126: Replace Electric Heaters in New Student Center Construction Description: SWA noted that first floor of the Student Center is undergoing construction and was under demolition at the time of audit. The new design was complete with electric heaters as follows: Electric Air Curtains, EAC-1,2,3,4, totaling 42.3kW Electric heaters, EWH-1,2, totaling 8kW Fan Powered Terminal Units, FPB-1 through 7, Reheat coils totaling 64kW SWA considered replacing these electric heaters with hot water units. It would require installing a new 400MBH condensing boiler along with new hot water pipes, valves, controls, gas connection, and hot water coils instead of electric coils. The equipment with electric heaters has not been ordered yet, and there may be an opportunity to incorporate hot water system in the new design. Installation cost: Estimated installed cost: $115,000 Source of cost estimate: Similar projects and client feedback Economics: ECM # 126 ECM Equipment Replace electric heaters in new Student Center construction est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % 115, , , , , , , ,533 internal rate of return, % net present value, $ CO2 reduced, lbs/yr Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 87/206

88 Assumptions: SWA calculated the savings for this measure using nameplate data taken and using the billing analysis. SWA assumed 1728 hours of use for air curtains and electric heaters, and 1872 hours of use for electric reheat which may be used throughout the year. The new boiler is assumed to operate around 2,000 hours in a year, at 90% efficiency. Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean energy Program (NJCEP). Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 88/206

89 ECM#127: Replace Existing Domestic Water Heater with High Efficiency Unit Description: The Technology Education Center building contains one AO Smith Domestic Hot Water heater with standard efficiency and an externally connected storage tank. SWA identified an opportunity to decrease energy usage by replacing this unit with a single, sealed-combustion DHW heater with storage contained within the unit. This unit (DHW-3) serves the pantry portion of the building. Installation cost Estimated installed cost: $2,636 Source of cost estimate: RS Means and similar projects Economics: ECM # 126 ECM Equipment Replace DHW-3 in Tech building est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % 3, , , ,954 internal rate of return, % net present value, $ CO2 reduced, lbs/yr Assumptions: SWA calculated the savings for this measure using measurements taken the day of the field visit and using the billing analysis. SWA assumes that current electric DHW will be replaced with a new boiler with 85% efficiency. Rebates/financial incentives: NJ Clean Energy Natural Gas Water Heating, Gas-fired water heaters >50 gallons 300 MBH ($2.00 per MBH) Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 89/206

90 ECM# : Replace refrigerators with Energy Star units Description: On the day of the site visit, SWA observed that there were thirty-eight old refrigerators of the 2.7 cu. ft. model and seventeen 17 cu. ft. models which were not Energy Star rated (using approximately 254 and 773 kwh/year each). SWA recommends replacing these existing refrigerators with ENERGY STAR, or equivalent models. Besides saving energy, the replacement will also keep the kitchen and other areas cooler. Installation cost Estimated installed cost: $9,719 Source of cost estimate: Vendor, Similar Projects Economics: ECM # ECM Equipment Refrigerator replacement est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % 9, ,719 8, , , ,606 12,187 internal rate of return, % net present value, $ CO2 reduced, lbs/yr Assumptions: SWA calculated the savings for this measure using measurements taken the days of the field visits and using the billing analysis. SWA assumes operation cost savings based on avoided bulb replacement when upgrading to lighting that consists of longer rated burn hours. SWA assumes operational hours based on field observations, billing analysis and staff interviews. Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean energy Program (NJCEP). Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 90/206

91 ECM# : Install Photovoltaic Renewable Energy Panels Description: Currently, Bergen Community College does not use any renewable energy systems (except for one module for a student research project used to power up a computer). Renewable energy systems, such as photovoltaic panels, can be mounted on the building roof facing south, and can offset a portion of the purchased electricity for the building. Power stations generally have two separate electrical charges: usage and demand. Usage is the amount of electricity in kilowatt-hours that a building uses from month to month. Demand is the amount of electrical power that a building uses at any given instance in a month period. During the summer periods, when electric demand at a power station is high due to the amount of air conditioners, lights, equipment, etc being used within the region, demand charges go up to offset the utility s cost to provide enough electricity at that given time. Photovoltaic systems not only offset the amount of electricity use by a building, but also reduce the building s electrical demand, resulting in a higher cost savings as well. SWA presents below the economics, and recommends at this time that BCC review installing a 1 MW PV system at the Pitkin Building and a 20kW system at the Ciarco building to offset electrical demand and reduce the annual net electric consumption for each respective building.bcc should review guaranteed incentives from NJ rebates to justify the investment. BCC may consider applying for a grant and/or engage a PV generator/leaser who would install the PV system and then sell the power at a reduced rate. PSE&G provides the ability to buy SRECs at $600/MWh or best market offer. SWA also considered installing canopy type solar PV panels above parking lot A, which is a two-story concrete structure with at least 50,000 sq ft available. The parking lot is located approximately 500 ft away from the main electric bus and will require extensive digging to run electric cables in underground trenches. Some areas are completely inaccessible under the building. This will require a substantial investment and is not advisable, especially when a large 1MW plant can easily be located on the existing building roof. SWA recommends the installation of a revenue-grade photovoltaic electric meter that can be read and monitored from the central BAS and/or the BCC website. This requires that BCC installs current transformers (CTs) with K-Y-Z pulse output capabilities on the main electric trunk from the photovoltaic panels. These pulses can be read from SCADA type data acquisition boxes and data can be sent over either telephone or internet lines to be deciphered by the BAS. From here, data can be output to CSV format to the BCC website to educate both faculty and students. The size of the system was determined using the amount of roof surface area, as well as the facilities annual base load. A PV system could be installed on a portion of the sloped roof that faces South or West. A commercial multi-crystalline 230 watt panel (17.2 volts, 7.16 amps) has 17.5 square feet of surface area (12.5 watts per square foot). A 1MW system needs approximately 4,400 Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 91/206

92 panels, which would take up 80,000 square feet; and a 20kW system needs approximately 217 panels, which would take up 3,800 square feet. *It is important to note that the size of the recommended photovoltaic systems is based on maximum-sized systems. The recommended system sizes are based on maximum available area to mount a photovoltaic system and assumed that the entire available area will be used. SWA recommends that Bergen Community College installs the largest system allowed within practical means and consideration for financial restraints. Roof-mounted systems require structural analysis before installation to ensure that the base structure is capable of supporting the entire weight of the system. Installation cost: Estimated installed cost: Economics: $7.5M (labor included at $3/Watt, totaling $3.0M) for Pitkin building $140,000 (labor included at $3/Watt, totaling $60,000) for Ciarco building Source of cost estimate: Similar projects ECM # ECM Equipment PV System Installation est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % 7,875,000 50,000 7,825,000 1,191, , ,396, ,471,434 1,631,863 internal rate of return, % net present value, $ CO2 reduced, lbs/yr Assumptions: SWA estimated the cost and savings of the system based on past PV projects. SWA projected physical dimensions based on a typical Polycrystalline Solar Panel (123 Watts, Model ND-123UJF). PV systems are sized based on Watts, and physical dimensions for an array will differ with the efficiency of a given solar panel (W/sq ft). Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 92/206

93 Rebates/financial incentives: NJ Clean Energy - Solar Renewable Energy Certificate Program. Each time a solar electric system generates 1,000kWh (1MWh) of electricity, a SREC is issued which can then be sold or traded separately from the power. The buildings must also become netmetered in order to earn SRECs as well as sell power back to the electric grid. A total of $680,650/year, based on $600/SREC, has been incorporated in the above cost for the Pitkin building and $34,000 for the Ciarco building; however it requires proof of performance, application approval and negotiations with the utility. Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 93/206

94 ECM # : Replace Existing Gas Boilers with Condensing Boilers Description: Most existing hydronic boilers in the Pitkin, Ciarco, and Ender Hall buildings are in generally good condition. These boilers are used for building heating, and domestic hot water service. Many boilers operate in lead-lag fashion, so the bulk of the heating load is carried by the lead. SWA analyzed the economics of replacing and upgrading the boilers with new condensing technology. Condensing boilers allow condensation of moisture in flue gases, allowing lower flue gas temperatures and increasing efficiencies of up to 95%. The lag boilers are not recommended for replacement, because they are used sparingly and are in generally good condition. The boiler replacement has been adjusted to reduce the cost by assuming that the new efficient boiler will be used most of the time, with the less efficient boiler being used as the lag boiler. The old boiler could be kept on site as a spare for the second boiler for any emergency. Installation cost Estimated installed cost: $318,247 Source of cost estimate: RS Means and similar projects Economics: ECM # ECM Equipment Condensing Boilers est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % 332,665 14, , , ,600 34, , , ,948 internal rate of return, % net present value, $ CO2 reduced, lbs/yr Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 94/206

95 Assumptions: SWA assumed the efficiency of condensing boilers as 92% for calculating the therms saved. Boilers identified for replacement with condensing boilers Pitkin: Replace Cleaver Brooks boiler serving 3rd floor college center Pitkin: Replace Patterson Kelly boiler serving upper floors business section Pitkin: Replace Boiler #1A Lochinvar DHW in main mechanical room Pitkin: Replace Boiler #2 Lochinvar boiler in main mechanical room with new 1500MBH rating Pitkin: Replace Boiler #3 Lochinvar boiler in main mechanical room with new 1500MBH rating Ciarco: Replace one (lead) Raypak Boiler in with new 1500MBH rating West: Replace Boiler #1 RBI boiler in main mechanical room Rebates/financial incentives: NJ Clean Energy - Gas-fired water heaters 300MBH 1500 MBH ($1.75 per MBH) NJ Clean Energy - Gas-fired water heaters 1500MBH 4000 MBH ($1.00 per MBH) Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 95/206

96 ECM# : Retro-commissioning of mechanical equipment Description: Retro-commissioning is a process that seeks to improve how building equipment and systems function together. Depending on the age of the building, retro-commissioning can often resolve problems that occurred during design or construction and/or address problems that have developed throughout the building s life. Most control systems are never re-adjusted after the building is in operation to fine tune any settings that may help the building run more efficiently. Owners often undertake retro-commissioning to optimize building systems, reduce operating costs, and address comfort complaints from building occupants. SWA recommends retro-commissioning at Ender Hall building to optimize system operation. Most roof top HVAC units at the building were installed in 1970s and have been in operation since. The retro-commissioning process should include a review of existing operational parameters for all installed equipment, such as fresh air dampers, and terminal air delivery grilles. During retrocommissioning, the individual temperatures of supply air should also be reviewed to identify opportunities for optimizing system performance. SWA recommends retro-commissioning at Ciarco building to optimize system operation. HVAC system and hydronics at the building were installed in 1998 and have been in operation since. The retro-commissioning process should include a review of existing operational parameters for all installed equipment, such as AHU dampers, hot water valves, VAV units, and terminal air delivery grilles. During retro-commissioning, the individual loop temperatures for hot water and supply air should also be reviewed to identify opportunities for optimizing system performance. Installation cost: Estimated installed cost: $86,250 Source of cost estimate: Similar projects Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 96/206

97 Economics: ECM # ECM Equipment est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % Retro-commissioning 86, ,250 22, , ,820 9, , ,606 58,337 internal rate of return, % net present value, $ CO2 reduced, lbs/yr Assumptions: Estimated costs for retro-commissioning range from $0.50-$2.00 per square foot. SWA assumed $0.75 per square foot for entire building. SWA also assumed on the average two (1/2) hrs/wk operational savings when systems are operating per design versus the need to make more frequent adjustments. Typical savings for retro-commissioning range from 5-20%, as a percentage of the total space conditioning consumption. SWA calculated the savings for this measure using measurements taken the on day of the field visit and using the billing analysis. SWA assumed 5% savings for both heating and cooling for both buildings. Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean energy Program (NJCEP). Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 97/206

98 ECM# : Replace inefficient Transformers Description: The recommended measure consists of disconnecting and removing the existing distribution transformers and installing new units compliant with Department of Energy s (DOE) latest standard for high efficiency transformers, NEMA TP1. This is a voluntary industry standard for new commercial transformers. The design should include load calculations and sizing of the new system in order to achieve the best possible efficiency for this application. Installation cost: Estimated installed cost: $565,722 Source of cost estimate: RS Means Economics: ECM # ECM Equipment TOTAL Transformer replacement est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % 565, , , , ,858, , ,208 internal rate of return, % net present value, $ CO2 reduced, lbs/yr Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 98/206

99 Assumptions: SWA calculated the savings for this measure using kwh savings based on an estimate of total kwh used per year. Power factor of 0.8 was used to convert kva to kw ratings, and then a 20% use factor loading was assumed to calculate kwh used. The 20% factor is in keeping with numerous studies conducted by the DOE and Lawrence Berkeley laboratory (LBNL) for statistical transformer loadings. Savings are calculated based on the efficiency performance of a new, high efficiency model (TP1 compliant) sized to the existing capacity. Transformers identified for replacement Pitkin Replace Y Transformer in Switchgear room, A018, 1000kVA Pitkin Replace Y Transformer in Main electric room, basement, 3000kVA Pitkin Replace Y Transformer in Main electric room, basement, 1500kVA Pitkin Replace Y Transformer in Main electric room, basement, 2000kVA Ender Hall Replace old transformer at Ender hall, 500kVA estimate Ender Hall Replace old transformer at Ender hall, 500kVA estimate Ender Hall Replace old transformer at Ender hall, 500kVA estimate Rebates/financial incentives: There are no incentives available for this measure at this time from New Jersey Clean energy Program (NJCEP). Please see Appendix F for more information on Incentive Programs. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 99/206

100 PROPOSED FURTHER RECOMMENDATIONS Capital Improvements Capital Improvements are recommendations for the building that may not be cost-effective at the current time, but that could yield a significant long-term payback. These recommendations should typically be considered as part of a long-term capital improvement plan. Capital improvements should be considered if additional funds are made available, or if the installed costs can be shared with other improvements, such as major building renovations. SWA recommends the following capital improvements for Bergen Community College. Replace electric baseboard and electric cabinet heaters Parts of the building that were added and modified in 1989 and not connected to the central plant were equipped with electric baseboards and cabinet heaters. Such areas include the three-story Library addition and Science section modification. Heating by electricity is much more expensive than by hot water supplied from gas-fired heaters; however, it will require significant plumbing and terminal equipment upgrades. SWA recommends that BCC be aware of this opportunity and carry out the change as part of capital improvement when possible. Review supply air quantities from central plant air handling units the Library section (1972) served by unit AC-1L, the Science section (1972) served by units AC-1SC, and AC-2SC, and the Business section served by unit AC-1BC, had existing large perimeter areas converted to internal areas as a result of building modifications and additions in 1989, 1996, and later in Consequently, the heating and cooling loads in these areas were reduced due to lower fenestration and transmission loads. The air handling units were equipped with variable frequency drives and set to deliver reduced air quantity. SWA recommends that BCC conduct a detailed load analysis for these areas by engaging a Professional Engineer to conduct a detailed testing and balancing of these systems. Upgrade Building Automation System (BAS) - The building contains a Trane Tracer Summit Direct Digital Control (DDC) BAS system. The Tracer system controls the heating plant, chiller plant and terminal equipment at various buildings. Many control valves, sensors, and actuators throughout the building are reportedly pneumatic types. The BAS, including Building Control Units (BCUs), should be upgraded to the latest technology as part of capital improvement. In addition, the front end interface should be upgraded. The upgraded system, like a Trane Tracer Enterprise Server, would provide improved interface with remote control access and alarm monitoring via an internet connection. Based on the condition of the existing system, it is likely that the existing control wiring would need to be replaced. The Gymnasium, Cafeteria and Library spaces could be provided with CO2 sensors for demand control ventilation. The Chiller Plant and Cooling Tower Optimization algorithms would be incorporated into the functionality of the controls system, which are currently manually sequenced based on the outside air temperatures. This recommendation will ensure that the retro-commissioning estimated savings are maintained and reproducible. Generally, it may cost about $1000-$2000 per point for such retrofits, and SWA estimated over 2000 points that could be retrofit. The estimated budget for this is more than $2M, and therefore this is recommended as a capital improvement. Install combined heat, cool and power system (tri-generation) Currently the building does not have a cogeneration system which can produce electricity year round by using waste heat as a valuable resource. It is important to have a year round use for this system to be Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 100/206

101 economically viable. BCC campus does not have a high load requirement in the summer time (re-heat) when most air conditioning systems deliver cooling. The only heating requirement for the summer is for domestic hot water, which does not justify an investment in a large cogeneration system. A small cogeneration system (less than 100kW output) is not worth the effort for a large BCC campus, because it requires extensive approvals from various regulatory authorities, as well as an interconnection agreement with the utility which can turn out to be a big bottleneck. SWA recommends that BCC pursue a tri-generation system instead: the waste heat is absorbed by an absorber water chiller in the summer time, and is used for building heating in the winter. Waste heat is rejected outdoors only for the shoulder months. This system can still be able to achieve a 60% overall annual efficiency if it is properly designed and implemented. SWA recommends that BCC consider a natural, gas-fired 750kW induction generator (that can only operate with excitation from utility electric grid), coupled with a single stage hot water 300 ton absorption chiller. The ideal place for this unit would be where the 1972 electric chiller (which is no longer in use) is located. The estimated budget cost for this system is approximately $2.1M. SWA recommends that BCC pursue a CHP (trigeneration) feasibility study for the site. Install wireless sub-meters for electricity and gas Currently, the whole BCC campus, which includes the Pitkin Building, Ender Hall, Technology Building, and West Hall is master metered for electricity and natural gas. BCC does not have the capability to monitor energy usage per building or per building section. SWA considered the installation of sub-meters for electricity and gas which can be read and monitored from the central building management system. The construction at the Pitkin Building happened over many years, and with each subsequent addition, new electric and gas lines were pulled from the main lines. It is difficult to estimate main electric and gas trunks serving any building section with certainty without conducting a detailed electric study. The electric and gas trunks for other buildings are better defined and benefit by installation of sub-meters, therefore SWA recommends sub-metering all buildings except for the Pitkin building at this time. SWA recommends that BCC install electric and gas sub-meters for the Ender Hall, the Technology Building, and the West Hall. This installation would require installing current transformers (CTs) with K-Y-Z pulse output capabilities. These pulses can be read from SCADA type data acquisition boxes and data sent over either telephone or internet lines that can be deciphered by the BAS. Estimated cost for sub-metering electric and gas at these buildings is approximately $20,000 based on past experience, and may require new software to be deployed at the BAS terminals. BCC should involve Trane BAS personnel prior to carrying out any such work. Replace air handling units Units serving the library AC-1L, cafeteria AC-1U and 2U, science AC-1SC and 2 SC, business AC-1BC, and gymnasium AC-1G to 6G were installed in 1972 and have outlived their service lives. Considering the increased maintenance repair costs that these units will incur, SWA recommends replacement of this equipment. The existing equipment utilizes a supply fan, return fan, hot water coil, chilled water coil, and filters. The estimated installed cost of this equipment is difficult to quantify, as these are custom, field-built units and cannot be procured simple off the shelf. The energy savings alone do not justify this replacement, and so SWA recommends replacing these units on an as-needed basis as part of capital improvement. Replace rooftop package units The following units AC-S-1, AC-S-2, AC-L-1 to 4, RT-1 to 3, AC-T-1 to 3 are all rooftop DX package units which have outlived their service lives. SWA recommends replacing these units with new, similar equipment, complete with premium Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 101/206

102 efficiency motors and enthalpy-controlled economizers. New units can be obtained with 15 SEER (seasonal energy efficiency ratio) as against the estimated SEER of existing units. This measure cannot be justified based on the economics of replacement alone, and is therefore recommended as a capital improvement. The estimated cost of replacement is approximately $600,000. Replace exhaust fans There are many mushroom-type roof exhaust fans which have outlived their services lives, and which should be replaced. SWA noted that many of these fans have already been replaced, and there were some new fans on the roof waiting to replace the old ones. SWA recommends replacing approximately 30 fans on roof at an estimated cost of $14,250. The energy savings alone do not justify this replacement, and this measured should be considered capital improvement. Install premium efficiency motors when new motors or replacements are required Always select NEMA Premium motors when installing new motors or when replacing motors that have reached the end of their useful operating lives. Operations and Maintenance Operations and Maintenance measures consist of low/no cost measures that are within the capability of the current building staff to handle. These measures typically require little investment, and they yield a short payback period. These measures may address equipment settings or staff operations that, when addressed will reduce energy consumption or costs. Shut down kitchen hood fans during unoccupied hours SWA recommends adjusting the controls system to shut down the kitchen hood during unoccupied hours. When the kitchen hood is allowed to operate during unoccupied hours, expensive conditioned air is exhausted unnecessarily. Remove lab hood fan from above Science Classroom Since this equipment is not in use, the presence of the fan is a possible point of heat loss in the building. If removing the fan and hood is not desirable, confirm the presence and integrity of a motor-operated damper and damper blade seals at the fan to minimize heat loss and infiltration. Confirm the operation of the intake and exhaust dampers on the air handling units. The intent of the BAS is to close the dampers at night, but if the dampers are stuck in the open position, the result would be a loss of heating energy to the outdoors. Confirm the night setback temperature set-points for all HVAC equipment. The BAS should be programmed to setback night time temperatures during unoccupied hours. Night time setback includes reducing the amount of necessary heat during the heating season and also reducing the amount of necessary cooling during the cooling season. If the night setback function is not operational with the current BAS system, or if the corresponding dampers or valves do not operate as intended, the result would be an excessive use of energy. Currently, the winter inside unoccupied mode temperature is maintained at 60 deg F; SWA estimated a reduction of 355 therms (savings of approximately $500) for each degree F reduction in this set-point. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 102/206

103 Reset temperature set-point for the Elevator Room in West Hall SWA recommends resetting the indoor temperature for Elevator Room in West Hall, which was found to be overcooled during our visit. This requires resetting the temperature through the BAS system located in the Pitkin Building. Inspect and replace gaskets around doors for walk-in refrigerator and for walk-in freezers. Ineffective gaskets allow infiltration of warm air into the walk-in box, which increases the runtime of the compressors. Check water levels in the expansion tanks, and check the integrity of the tank bladder, to confirm proper operation. Use Energy Star labeled appliances - such as Energy Star refrigerators, vending machines and computers. These appliances should replace older, energy-inefficient equipment. Provide easy access to all mechanical equipment Several of the buildings had clutter, including extra student desks, tables and boxes stored in the mechanical room. These items make it difficult to access mechanical equipment, and can also become a hazard when placed close to combustion appliances such as boilers. When mechanical equipment is hard to access, performance of routine maintenance may be affected. Maintain roofs - SWA recommends regular maintenance to verify rainwater is draining correctly. Regular inspections should be conducted to ensure that roof drains are not clogged, causing water pooling. The Technology Education Center was observed to have standing water due to several roof drains being clogged. Maintain downspouts - Repair/install missing downspouts as needed to prevent water or moisture infiltration and insulation damage. Provide weather-stripping/air-sealing - Doors and vestibules should be observed annually for deficient weather-stripping and replaced as needed. The perimeter of all window frames should also be inspected regularly, and any missing or deteriorated caulking should be recaulked to provide an unbroken seal around the window frames. Any other accessible gaps or penetrations in the thermal envelope penetrations should also be sealed with caulk or spray foam. Repair/seal wall cracks and penetrations - SWA recommends, as part of the maintenance program, installing proper flashing, correct masonry efflorescence, and sealing wall cracks and penetrations wherever necessary in order prevent damage from excess moisture or air infiltration. Provide water-efficient fixture aerators and sensors Verify and Install 0.5gpm aerators and motion sensors on all water faucet fixtures throughout the school. Installing lower GPM aerators on all lavatory faucets is a cost-effective way to reduce domestic hot water demand and save water. Routine maintenance practices that identify and quickly address water leaks are a low-cost way to save water and energy. Retrofitting with more efficient waterconsumption fixtures and appliances will save energy through reduced energy consumption for water heating, while also decreasing water/sewer bills Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 103/206

104 Use smart power electric strips - in conjunction with occupancy sensors to power down computer equipment when left unattended for extended periods of time. Create an energy educational program - that teaches how to minimize energy use. The U.S. Department of Energy offers free information for hosting energy efficiency educational programs and plans. For more information please visit: Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 104/206

105 APPENDIX A: EQUIPMENT LIST Pitkin Education Center Building System Description Physical Location Make/ Model Fuel Space served Year Equip Installed Estimated Remaining useful life % HVAC R-1A, 14200cfm, 1" SP, 5 hp motor; not used anymore Loading Dock Mechanical Room, A-021 Trane, Model M-B, S/N KOTI86347 Pitkin; Admin: Return air to AC-1A % HVAC HVAC Ventilation Ventilation Ventilation Ventilation AC-2A cfm, 3.25" SP, 5 hp motor HV-1A, 15000/7500 CFM, dual speed, 2.25"SP, 10 hp motor - not used anymore E-1A, 20000/10600cf m, dual speed, 1.25", 7.5 hp motorenclosed within a sheet metal casing E-2A, 4000cfm, 1/20 hp motor Exhaust fan, est. 1/2hp motor, 1 nos. Exhaust fan, est. 1/6hp motor, 1 nos. Loading Dock Mechanical Room, A-021 Loading Dock Mechanical Room, A-021 Loading Dock Mechanical Room, A-021 Loading Dock Mechanical Room, A-021 Roof above Admin Roof above Admin Nameplate N/A Trane Torrivent, Model T-35, S/N KOT Nameplate N/A Nameplate N/A SwartOut, Nameplate N/A SwartOut, Nameplate N/A Pitkin; Admin: Telephone equipment room Pitkin; Admin: Tunnel supply Pitkin; Admin: Loading dock exhaust Pitkin; Admin: Emergency generator exhaust % % % % Pitkin; Admin % Pitkin; Admin % Ventilation Exhaust fan, est. 1/3hp motor Roof above Admin Dayton, Model 2RB64, S/N Pitkin; Admin % Ventilation Exhaust fan, est. 1/3hp motor Roof above Admin Dayton, Model 2RB64, S/N Pitkin; Admin % Ventilation Exhaust fans as follows: 1 hp - 2 nos. Roof above Admin Penn, Model as follows: 4HX95A Pitkin; Admin 2005 est. 75% Ventilation Exhaust fan, 1/3hp est. roof mounted mushroom type Roof above Admin Greenheck, model SB M, S/N Pitkin; Business section % Cooling Condensing unit, 5 tons, 460/3/60, MCA14, R-22 Roof above Student Center Trane, Model TTA060D400A0, S/N P2630FBFF Pitkin; Cafeteria % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 105/206

106 HVAC HVAC HVAC HVAC HVAC HVAC AC-S- 1,17000cfm, 15hp supply fan, 10hp return fan, fresh air 2550 CFM, DX cooling, gas heating (312/250 MBH in/out) AC-S- 2,20000cfm, 20hp supply fan, 7.5hp return fan, fresh air 6000 CFM, DX cooling, gas heating (312/250 MBH in/out); electric reheat (5+15)kW Roof top package unit, DX, R-22, 15tons, est. 6000cfm,, gas heating, 350/284 MBH in/out Roof top package unit, DX, R-22, 15tons, est. 6000cfm,, gas heating, 350/284 MBH in/out RTU-2A, 2000cfm, 100% fresh air, 3hp fan motor, 460/3/60, DX cooling R22, gas heating (180/146 MBH in/out); c/w enthalpy economizer and heat recovery wheel RTU-2B, 2000cfm, 100% fresh air, 3hp fan motor, 460/3/60, DX cooling R22, gas heating (180/146 MBH in/out); c/w enthalpy economizer and heat recovery wheel Roof above Student Center Roof above Student Center Roof above Student Center Roof above Student Center Roof over Administratio n Roof over Administratio n McQuay, Model RPS051BA, S/N 3VK McQuay, Model RPS051BA, S/N 3VK Trane, Model YCH180, S/N not available Trane, Model YCH180, S/N not available Aaon, Model RM AA91-339, S/N AMGG11381 Aaon, Model RM AA91-339, S/N AMGG11382 Gas/El ec. Gas/El ec. Gas/El ec. Gas/El ec. Gas/El ec. Gas/El ec. Pitkin; Admin: Addition of Student center Pitkin; Admin: 1st floor gut renovation Pitkin; Cafeteria Make up air Pitkin; Cafeteria Make up air Pitkin; Admin: 2nd floor fresh air and exhaust Pitkin; Admin: 2nd floor fresh air and exhaust % % 2001 est. 40% 2001 est. 40% % % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 106/206

107 HVAC HVAC RTU-3A, 6400cfm, 100% fresh air, 7.5hp fan motor, 460/3/60, DX cooling R22, gas heating (480/389 MBH in/out); c/w enthalpy economizer and heat recovery wheel RTU-3B, 3200cfm, 100% fresh air, 3hp fan motor,460/3/60, DX cooling R22, gas heating (270/219 MBH in/out); c/w enthalpy economizer and heat recovery wheel Roof over Administratio n Roof over Administratio n Aaon, Model RM AB92-379, S/N AMGP11405 Aaon, Model RM AA92-349, S/N AMGH11350 Gas/El ec. Gas/El ec. Pitkin; Admin: 3rd floor fresh air and exhaust Pitkin; Admin: 3rd floor fresh air and exhaust % % HVAC AC-1L, cfm, 7"SP, 200 hp motor; hot and cold decks, c/w VFD Main Mechanical room, basement Nameplate N/A - it is field built up and original Pitkin; Library: Basement corridor outside B&G office, library 1st to 3rd floors % HVAC HVAC HVAC HVAC Ventilation R-1L, 48000cfm, 2.5"SP, 30 hp motor, c/w VFD R-2L, 48000cfm, 2.5"SP, 30 hp motor; not used anymore AC-L- 1,19000cfm, 20hp supply fan, 10hp return fan, fresh air 3000 CFM, DX cooling R22, gas heating (250/200 MBH in/out) - burner model 020TA AC-L- 4,18000cfm, 15hp supply fan, 10hp return fan, fresh air 2700 CFM, DX cooling R22, gas heating (250/200 MBH in/out)- burner model 020TA Exhaust fan, est. 1/6hp motor, 2 nos. Main Mechanical room, basement Main Mechanical room, basement Roof above Library (1989) Roof above Library (1989) Roof above Library (1972) Nameplate N/A Nameplate N/A McQuay, Model RPS060BA, S/N 3VK McQuay, Model RPS051BA, S/N 3VK Nameplate N/A Pitkin; Library: Return air from Library to the unit Pitkin; Library: Return air from Library to the unit Pitkin; Library: addition to 1st floor Pitkin; Library: addition to 2nd and 3rd floor Pitkin; Library (1972) % % % % % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 107/206

108 Ventilation Ventilation Exhaust fan, est. 1/4hp motor, 1 nos. Exhaust fan, est. 1/2hp motor, 1 nos. Roof above Library (1972) Roof above Library (1972) Nameplate N/A SwartOut, Nameplate N/A Pitkin; Library (1972) Pitkin; Library (1972) % % Ventilation Exhaust fans as follows: 3/4 hp - 2 nos. Roof above Library (1972) Penn, Model as follows: 4HX87A Pitkin; Library (1972) % Ventilation E-1L, and E-2L; Exhaust fans, 4200 CFM approx., 1 hp est., 2 nos. Roof above Library (1972) Penn, Model as follows: 4HX89A Pitkin; Library (1972) toilets % Cooling Condensing unit, R-22, 115/1/60, MCA 20, 1 ton est. Roof above Library (1972) Sanyo, Model CL1211, S/N Pitkin; Library (1972) 2001 est. 40% Cooling Condensing unit, R-22, 208/1/60, MCA 30, 2 ton est. Roof above Library (1972) Sanyo, Model C2422, S/N Pitkin; Library (1972) 2004 est. 60% Cooling Condensing unit, R-22, 208/1/60, MCA 15.5, 2 ton est. Roof above Library (1972) Friedrich, Model MR24C3C, S/N LKEH00060 Pitkin; Library (1972) % Cooling Condensing unit, R22, 208/1/60, MCA18, 2.5 ton est. Roof above Library (1972) Mitsubishi, Model PU30EK3, S/N 07U Pitkin; Library (1972) 2004 est. 60% Cooling Condensing unit, R-22, 208/1/60, MCA 30, 2 ton est. Roof above Library (1972) Sanyo, Model C2422, S/N Pitkin; Library (1972) 2004 est. 60% Cooling Cooling Cooling Cooling Cooling Condensing unit, R-22, 208/1/60, MCA 10.7, 1.5 ton est. - 4 nos. Condensing unit, R410A, 208/1/60, MCA26, 3.5 ton est. Condensing unit, R410A, 115/1/60, MCA16, 1 ton est. Condensing unit, R410A, 208/1/60, MCA18, 2 ton est. Condensing unit, R410A, 208/1/60, MCA26, 3.5 ton est. Roof above Library (1972) Roof above Library (1972) Roof above Library (1972) Roof above Library (1972) Roof above Library (1972) Carrier, Model 38KD018C300, S/N N/A Mitsubishi, Model PUY- A42NHA, S/N S Mitsubishi, Model MU- A12WA, S/N Mitsubishi, Model PUY- A24NHA, S/N B Mitsubishi, Model PUY- A42NHA, S/N 66U00026C Pitkin; Library (1972) Pitkin; Library (1972) Pitkin; Library (1972) Pitkin; Library (1972) Pitkin; Library (1972) 2001 est. 40% 2004 est. 67% 2004 est. 67% 2004 est. 67% 2004 est. 67% Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 108/206

109 Cooling Condensing unit, R-22, 208/1/60, MCA 30, 2 ton est., 4 nos. all same Roof above Library (1972) Sanyo, Model SAP243C, S/N Pitkin; Library (1972) 2001 est. 40% Cooling Condensing unit, R-22, 200/1/60, MCA 23, 3.5 tons Roof above Library (1989) Trane, Model XE1200, TWP042C100A4, S/N R49KHR2F Pitkin; Library (1989) % Cooling Cooling HVAC Condensing unit, R-22, 115/1/60, MCA 30 Condensing unit, R410A, 115/1/60, 44W fan motor, 1 ton est. AC-1U, 27000cfm, 7"SP, 50 hp motor, original; hot and cold decks Roof above Library (1989) Roof above Library (1989) Main Mechanical room, 1st floor Sanyo, Model C3622, S/N Mitsubishi, Model MU- A12WA, S/N Trane, Climate Changer, Model H-41, S/N K0J Pitkin; Library (1989) Pitkin; Library (1989) Pitkin; Coll. Ctr: Basement maint. shops, part 1st floor coll ctr est. 40% 2004 est. 67% % HVAC R-1U, 20000cfm, 2.5"SP, 15 hp motor Main Mechanical room, 1st floor Nameplate N/A Pitkin; Coll. Ctr: Return air from AC-1U areas % HVAC AC-2U, 38,500cfm, 3.75"SP, 50 hp motor; hot and cold decks - motor looks new, c/w VFD Main Mechanical room, 1st floor Trane, Climate Changer, Model MZ- 63, S/N K Pitkin; Coll. Ctr: Part 1st floor and 2nd floor cafeteria % HVAC HVAC Ventilation R-2U, 24150cfm, 2.5"SP, 15 hp motor AC-3U, 2500cfm, 0.5"SP, 0.5 hp motor - split unit E-1U, Motor 25hp, 91.7% NEMA high eff., est. 2 years old, 21000cfm@4"S P Main Mechanical room, 1st floor 1st floor, room C10 Mechanical Penthouse, College center Nameplate N/A Pitkin; Coll. Ctr: Return air from AC-2U areas % Nameplate N/A Pitkin; C % Clarage Fan Co., Nameplate N/A, Pitkin; Kitchen hood - main % Ventilation E-3U, 2400cfm@2"S P, motor est. 2hp Mechanical Penthouse, College center Nameplate N/A Pitkin; Secondary hood 2004 est. 70% Ventilation E-4U, 7700cfm@1.25 "SP, motor est. 3 hp Mechanical Penthouse, College center Clarage Fan Co., Size 60-MS, S/N 4645-CA Pitkin; General exhaust % Ventilation E-5U, 5000cfm@1"S P, motor est. 1hp Mechanical Penthouse, College center Clarage Fan Co., Size 54-MS, S/N 4646-CA Pitkin; Dishwash exhaust % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 109/206

110 Cooling Condensing unit, R-22, 208/1/60, MCA19.6, 3 ton Roof above College center EMI, Model SHC36DEC000AA0A, S/N 1-97-C Pitkin; College center % Cooling Condensing unit, R410A, 208/1/60, MCA 20, 1.5 tons est.; SEER 20 Roof above College center Sanyo, Model CL1872, S/N Pitkin; College center % Cooling Condensing unit, R410A, 208/1/60, MCA 20, 1.5 tons est.; SEER 20 Roof above College center Sanyo, Model CL1872, S/N Pitkin; College center % Ventilation Exhaust fans, 3 nos., approx. 1/6hp motor each Roof above college center Jenn Fan, Model JEB1204 Pitkin; College center 1996 est. 30% HVAC HVAC HVAC Heating Heating RT- 1,15000cfm, 10hp motor, 460/60/3 fresh air 3400cfm, DX cooling R- 22, gas heating (500/400 MBH in/out), c/w VFD RT- 2,14000cfm, 10hp motor, fresh air 3000cfm, DX cooling, gas heating (625/500 MBH in/out), c/w VFD RT- 3,15200cfm, 15hp motor, fresh air 3400cfm, DX cooling, gas heating (800/640 MBH in/out), c/w VFD Hot water boiler, 1500/1200 MBH in/out, 80% eff rated; Burner GP-700-1, S/N G Circulating hot water pumps, 120 gpm@30' head, 460/3/60, Baldor motor, 2 hp Roof above college center Roof above college center Roof above college center 3d floor, College center, C307 3d floor, College center, C307 McQuay, Model RPS040ClA, S/N 37C McQuay, Model RPS036CLA, S/N 37C McQuay, Model RPS045CSA, S/N 37C Cleaver Brooks, Model FLX 700, S/N BT-5583 Nameplate N/A Gas/El ec. Gas/El ec. Gas/El ec. Gas Pitkin; Coll. Ctr: 3rd floor addition Pitkin; Coll. Ctr: 3rd floor addition Pitkin; Coll. Ctr: 3rd floor addition Pitkin; Coll. Ctr: 3rd floor addition Pitkin; Coll. Ctr: 3rd floor addition % % % % % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 110/206

111 Cooling Cooling Cooling Cooling Ventilation Evaporator 1 for walk in freezer, 208/1/60, qty of 4-1/20hp motors, 3.5kW defrost heaters City water cooled condensing unit for walk in freezer, R22, 208/3/60,23.1M CA Evaporator 2 for walk in freezer, 208/1/60, qty of 4-1/15hp motors, 3kW defrost heaters City water cooled condensing unit for walk in freezer, R22, 208/3/60,49MC A Exhaust fan, est. 2hp motor, 460/60/3, 9.3A - 3 nos. Walk-infreezer, basement Basement, above walk in freezer Pitkin; Walk-infreezer Walk-infreezer, basement Basement, above walk in freezer Roof above Old Science (1967) Trenton, Model TLP422LE-S2A, S/N Trenton, Model TESA035L6-HT3A-F, S/N Bohn, Model LET2402F, S/N DSJ02597 Bohn, Model DSW6L2HD01, S/N DSE00153 Swartout, FiberAire, Model 633-FWB Pitkin; Walk-infreezer Pitkin; Walk-infreezer Pitkin; Walk-infreezer Pitkin; Science section (1967) N/A 15% N/A 15% N/A 15% N/A 15% % Ventilation Exhaust fans as follows: 1/4 hp - 7 nos. 1/2 hp - 5 nos. 1 hp - 1 no. 3/4 hp - 1 no. Roof above Old Science (1967) Penn, Model as follows: 4HX83A 4HX85A 4HX89A 4MH84 Pitkin; Science section (1967) Less than 5 years old 75% Ventilation Exhaust fan, est. 1/6hp motor, 3 nos. Roof above Science (1989) Loren Cook, Model ACRU Pitkin; Science section (1989) 1989 est. 0% Ventilation Exhaust fan, est. 1/6hp motor Roof above Science (1989) Dayton, Model 4YY16, S/N Pitkin; Science section (1989) 2005 est. 75% Cooling Cooling Cooling Condensing unit, R410A, 208/1/60, MCA30, 3 tons est. Condensing unit, R22, 208/1/60, MCA16, 2 tons est., 10 SEER Condensing unit, R22, 115/1/60, MCA15, 1 tons est. Roof above Science (1989) Roof above Science (1989) Roof above Science (1989) Mitsubishi, Model PUY- A36NHA, S/N 62UO3463B Dayton, Model MAKA- 024JAZ, S/N 5882 M Sanyo, Model C1211, S/N Pitkin; Science section (1989) Pitkin; Science section (1989) Pitkin; Science section (1989) 2007 est. 80% % 2007 est. 80% Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 111/206

112 Renewabl e HVAC HVAC HVAC PV module, 600V AC/DC, 10A input, 85 Amp output, connected to power a computer AC-1SC, 75000cfm, 7.5"SP, 125 hp motor; hot and cold decks, c/w VFD R-1SC, 75000cfm, 3"SP, 50hp motor, 460/3/60, 84 Amps - original motor, c/w VFD AC-2SC, 41500cfm, 7.5"SP, 75 hp motor; hot and cold decks, c/w VFD Roof above Science (1989) Main Mechanical room, basement Main Mechanical room, 1st floor Main Mechanical room, basement Ascension Technology, PVSCP Field built up unit, original, no name plate Joy, Model , S/N SF Field built up unit, original, no name plate Pitkin; Student research project - not used Pitkin; Science: North section 1st to 3rd floors Pitkin; Science: Return air from North section Pitkin; Science: East section 1st to 3rd floors N/A N/A % % % HVAC HVAC HVAC HVAC Heating R-2SC, 30500cfm, 2.5"SP, 10 hp motor, c/w VFD AC-1M, 14,000cfm, 2.5"SP, 15 hp motor; not used anymore AC-L- 2,15000cfm, 15hp supply fan, 5hp return fan, fresh air 2700 CFM, DX cooling R22, gas heating (250/200 MBH in/out)- burner model 020TA AC-L- 3,22000cfm, 20hp supply fan, 15hp return fan, fresh air 3300 CFM, DX cooling R22, gas heating (312/250 MBH in/out)- burner model 020TA Electric water heater for dental lab, 6kW, 480/3/60, 50 gallon rated capacity Main Mechanical room, 1st floor Main Mechanical room, 1st floor Roof above Science (1989) Roof above Science (1989) Dental lab mech. room Nameplate N/A Trane, Climate Changer, Model O-25, S/N K McQuay, Model RPS051BA, S/N 3VK McQuay, Model RPS070BA, S/N 3VK AO Smith, Model DEL , S/N 0906M Gas/El ec. Gas/El ec. Pitkin; Science: Return air from East section Pitkin; Mechanical Room Pitkin; Science: Addition on 2nd floor in 1989 Pitkin; Science: Addition on 3rd floor in 1989 Pitkin; Dental lab % % % % 2004 est. 67% Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 112/206

113 HVAC HVAC Ventilation AC-1BC, 62280cfm, 6.75"SP, 125 hp motor; hot and cold decks, c/w VFD R-1BC, 49,800cfm, 2.25"SP, 25 hp motor, c/w VFD E-1BC exhaust fan, 2800cfm, 0.625"SP, 3/4hp, 115/1/60 Mechanical room Business building Mechanical room Business building Roof above business section Field built up unit, original, no name plate Nameplate N/A Loren Cook, model 180CPV, S/N / Pitkin; Business: designed for 1st to 3rd floors, however only 1st floor now Pitkin; Business: designed for return air from 1st to 3rd floors, however only 1st floor now Pitkin; Business section % % % Ventilation E-2BC exhaust fan, 1000cfm, 0.625"SP, 1/3hp, 115/1/60 Roof above business section Loren Cook, model 135CPV, S/N / Pitkin; Business section % Ventilation Exhaust fan, 1/3hp est. roof mounted mushroom type Roof above business section Greenheck, model GB , S/N Pitkin; Business section % Ventilation Ventilation HVAC HVAC HVAC Supply air louver with gravity operated barometric dampers - to spill out excess air Supply air louver with gravity operated barometric dampers - to spill out excess air RTU-1, 35 tons, 14100cfm, 2.5"SP, 15 hp evap. motor, DX cooling, gas heating (350/283 in/out MBH) RTU-2, 35 tons, 14100cfm, 2.5"SP, 15 hp evap. motor, DX cooling, gas heating (350/283 in/out MBH) RTU-3, 50 tons, 21000cfm, 2.5"SP, 20 hp evap. motor, DX cooling, gas heating (400/324 in/out Roof above business section Roof above business section Roof above business section Roof above business section Roof above business section Loren Cook, Model SPECIAL TRE 36x96x10 TR, S/N / Loren Cook, Model SPECIAL TRE 36x96x10 TR, S/N / Trane, Model YCD420.., S/N C06B00993 Trane, Model YCD420.., S/N C06B00992 Trane, Model YCD600..., S/N C06B00994 None None Gas/El ec. Gas/El ec. Gas/El ec. Pitkin; Business section Pitkin; Business section Pitkin; Business: 3rd floor, renovated in 2005 Pitkin; Business: 3rd floor, renovated in 2005 Pitkin; Business: 2nd floor, renovated in % % % % % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 113/206

114 MBH) HVAC RTU, 15 ton est., 6000cfm est., 460/60/3; DX cooling, gas heating 350/284 in/out MBH Roof above business section Trane, Model YFH180B4HBEA, S/N P D Gas/El ec. Pitkin; Business section make up air % Cooling Condensing unit, R22, 208/1/60, MCA16, 2 tons est. Roof above business section Central Environmental System, Model HAMC- F024SA, S/N eeom Pitkin; Business section 2005 est. 67% Cooling Condensing unit, R410A, 208/1/60, MCA18, 2 tons est. Roof above business section Mitsubishi, Model PUY- A24NHA2, S/N Pitkin; Business section 2007 est. 80% Cooling Condensing unit, R22, 208/1/60, 2 tons est. Roof above business section Unitary Products Group, Model AC024M1021A, S/N WHLM Pitkin; Business section 2006 est. 73% Ventilation Ventilation Heating Heating HVAC HVAC HVAC Exhaust fans, 3 nos., 1 hp motor est. Exhaust fans, 1/4 hp motor est. Hot water boiler, 1000/850 MBH in/out, 85% rated eff. Hot water pumps, size 1510, 98gpm@60'hea d, Marathon motor, 5hp, 460/3/60, 87.5% eff. AC-1G, 7000cfm, 3.5"SP, 10 hp motor original AC-2G, 11650cfm, 3.5"SP, 15 hp motor, new Dayton, high eff. AC-3G, 11740cfm, 3.5"SP, 15 hp motor, original Roof above business section Roof above business section 3rd floor, Business, B328 3rd floor, Business, B328 Gymnasium mechanical room Gymnasium mechanical room Gymnasium mechanical room Penn, Model 4HX89A Penn, Model 4HX83A Paterson Kelly, Modu- Fire, Model SNM-1000 ITT Bell & Gossett, Size 1510, no. C B60 Nameplate N/A Trane, Climate Changer, Model M-63, S/N KOJ Trane, Climate Changer, Model M-63, S/N KOJ Gas Pitkin; Business section Pitkin; Business section Pitkin; 2nd and 3rd floor Business section Pitkin; 2nd and 3rd floor Business section Pitkin; Gymnasium Lobby Pitkin; Gymnasium Lockers Left Pitkin; Gymnasium Lockers Right 2006 est. 80% 2006 est. 80% % % % % % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 114/206

115 HVAC HVAC HVAC Ventilation AC-4G, 30000cfm, 3.75"SP, 30 hp motor original; c/w VFD AC-5G, 5540cfm, 3.5"SP, 7.5 hp motor AC-6G, 30500cfm, 3.75"SP, 30 hp motor original; c/w VFD E-5G, "SP, motor est. 2 hp Gymnasium mechanical room Gymnasium mechanical room Gymnasium mechanical room Roof above Gymnasium Trane, Climate Changer, Model M-63, S/N KOJ Nameplate N/A Trane, Climate Changer, Model M-63, S/N KOJ Swartout, Nameplate N/A Pitkin; Gymnasium Left Pitkin; Gymnasium Offices Pitkin; Gymnasium Right Pitkin; Gymnasium Left % % % % Ventilation E-6G, 10900cfm@0.7 5"SP, motor est. 3 hp Roof above Gymnasium Swartout, Nameplate N/A Pitkin; Gymnasium - women's lockers % Ventilation E-7G, 10900cfm@0.7 5"SP, motor est. 3 hp Roof above Gymnasium Swartout, Nameplate N/A Pitkin; Gymnasium - men's lockers % Ventilation E-8G, 6000cfm@0.75 "SP, motor est. 2 hp Roof above Gymnasium Swartout, Nameplate N/A Pitkin; Gymnasium Right % HVAC HVAC Heating Heating Cooling R-1N, 5600cfm, 1"SP, 1.5 hp motor R-2N, 8600 CFM, 1" SP, 3 hp motor Pool heating pump, 460/3/60, 300gpm approx. Motor installed 5 years ago Pool heating pump, 460/3/60, 300gpm approx. Motor installed 5 years ago Pool service chiller, MCA 32, 460/3/60, 2*10HP comp motors, R-22, 20 tons, water cooled Pool 1st floor, Room N107 Pool 1st floor, Room N107 Pool mechanical room Pool mechanical room Pool mechanical room Trane Utility fans, nameplate N/A Trane Utility fans, nameplate N/A Pitkin; Pool, AC-1N Pitkin; Pool, AC-2N % % Paco Pitkin; Pool % Paco Pitkin; Pool % Trane, Model CGWD0204CGOHA71 01FFOG, S/N 094K04558 Pitkin; Pool Not yet installed; 10 years old 57% HVAC AC-1N, 9690cfm, 3.5"SP, 15 hp motor est. Pool mechanical room McQuay, Model LSL122CH, S/N 36H Pitkin; Pool % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 115/206

116 HVAC AC-2, Dehumidifying pool heater, MCA 88, 460/3/60, 10,600 DX, R-22, est. 15 hp motor Pool mechanical room Dumont Refrigeration Corp., Zephyr, Model DP-4800, S/N DP48BC10T1SA00V Pitkin; Pool % Heating Pool water heater, 399MBH in, min 78% eff. Pool mechanical room Lochinvar, Model EPN402, S/N D08H Gas Pitkin; Pool water 1999 est. 56% Heating Pool water heater, 985/797 MBH in/out, cw 1/2 hp ITT B&G water circulator Pool mechanical room Lochinvar, Model CBN0985, S/N K Gas Pitkin; Pool building HVAC 1999 est. 56% Heating Heating Pool water pump, Baldor motor, VJNN3313T, 10hp, 1715rpm, 460/3/60 Pool water pump, 375 head, Paco motor, 10hp, 460/3/60 Pool mechanical room Pool mechanical room Paco pump, Model , S/N XA G94929A Paco pump, Model , S/N XA G94929B Pitkin; Pool water Pitkin; Pool water Motor replaced 5 years ago Motor replaced 5 years ago 20% 20% Cooling Condensing unit, R22, 208/1/60, MCA41, 5 tons Low roof above theater Central Environmental System, Model HAMC- F060SB, S/N EMBM Pitkin; Theater 2005 est. 67% Cooling Condensing unit, R22, 208/1/60, MCA41, 5 tons Low roof above theater Central Environmental System, Model HAMC- F060SB, S/N EMBM Pitkin; Theater 2005 est. 67% Ventilation Ventilation HVAC Exhaust fan, est. 1/4hp motor Exhaust fan, est. 1/6hp motor AC-T-1, 17950/8975 CFM, dual speed, 15hp supply fan, 7.5hp return fan, 460/60/3, fresh air 3590 CFM, DX cooling R22, no heating; Low roof above theater Low roof above theater Low roof above theater Loren Cook, Model Loren Cook, Nameplate N/A McQuay, Model RPS 060BY, S/N 3VK Pitkin; Theater 1980 est. 0% Pitkin; Theater 1980 est. 0% Gas/El ec. Pitkin; Theater: Auditorium, lobby % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 116/206

117 HVAC HVAC Cooling Cooling Ventilation Heating HVAC Heating Cooling AC-T-2, 13485/6745 CFM, dual speed, 7.5hp supply fan, 5hp return fan, 460/3/60, fresh air 2030 CFM, DX cooling R22, no heating; AC-T-3, 4200 CFM, 5hp supply fan, 460/3/60, fresh air 630/2100 CFM, DX cooling R22, gas heating (250/200 MBH in/out); AC-T-4A, DX type outdoor condensing unit, 460/3/60, MCA 56, est. 21 tons AC-T-4B, DX type indoor unit, 6700 CFM, 1340 CFM OA EF-T-4, 2700cfm, est. 1/3hp, exhaust fan, for converted space relief, Electric water heater, 54KW, 65Amps, 460V, 400 gallons tank Package unit, installed indoors in Maintenance department, 208/1/60, MCA21.5, 2.5 tons, est. 1000cfm Electric water heater for DHW, 54kW, 480/3/60 Pump, P-1M, Chilled water, 60hp motor, 460/3/60, 885rpm, new motor installed in , no VFD - operated about 16 wks/yr. Low roof above theater Low roof above theater Outdoor, on grade Room C106C Room C106C Room C106b Maintenance shop in basement Maintenance shop in basement Main Mechanical room, basement McQuay, Model RPS 041BY, S/N 3VK McQuay, Model RPS 018BY, S/N 3VK Trane, RAUCC254, S/N C07K10975 McQuay, Model LSL114DH, S/N 3VJ Nameplate N/A Hubbell, Model H LT4, S/N International Comfort Products, Model PAF030K000E, S/N G Rheem Rudd, Model ES85-54-G, S/N BR E00171 Worthington, size 6 LR 18, Brook motor, model 40FT, high eff. Gas/El ec. Gas/El ec. Pitkin; Theater: Stage Pitkin; Workshop Pitkin; Converted space Pitkin; Converted space Pitkin; Converted space Pitkin; Theater restrooms Pitkin; Maintenance shop, basement Pitkin; Maintenance shop, basement Pitkin; Chilled water for 500 tons chiller only % % % % % 1989 est. 0% 2006 est. 73% % 1972; motor is less than 3 years old 0% Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 117/206

118 Cooling Pump, P-2M, Chilled water, 2300 original, 175hp motor, 460/3/60, old original motor; this is not used anymore Main Mechanical room, basement Worthington, size 6 LR 18, Motor Model C- 120B , S/N C Pitkin; Chilled water 1972; NIU 0% Cooling Pump, P-3M, Chilled water, 25hp motor, 460/3/60, new motor, high eff % - this is backup only, and run from emergency generator Main Mechanical room, basement Worthington, size 6 LR 18, Motor Marathon, Model VC326T Pitkin; Chilled water 1972; motor is less than 3 years old 0% Heating Heating Heating Pump, P-4M, Hot water, 125hp motor per dwg, 1200rpm, 1800gpm@198', used 50% of time in winter (other 50% is P-15) Pump, P-5M, Hot water, 125hp motor per dwg, 1800gpm@200' head - not used anymore Pump, P-6M, 25hp motor, 460/3/60, new motor, high eff %, c/w VFD- this is backup only, and run from emergency generator Main Mechanical room, basement Main Mechanical room, basement Main Mechanical room, basement Worthington, size 6 LR 18 Worthington, size 6 LR 18 Worthington, size 6 LR 18, Motor Marathon, Model 6B326T Pitkin; Hot water Pitkin; Hot water Pitkin; Hot water % 1972; NIU 0% 1972, motor is about 8 years old 0% Cooling Pump, P-7M, Condenser water, 100hp motor OLD, 460/3/60, 2650gpm@100' - not used anymore Main Mechanical room, basement Worthington, size 8 LR 13 Pitkin; Condenser water 1972; NIU 0% Cooling Pump, P-8M, Condenser water, 60hp motor OLD, Uniclosed, 460/3/60, 1150 rpm - operated approx. 16wks/year Main Mechanical room, basement Worthington, size 8 LR 13 Pitkin; Condenser water for 500 tons chiller % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 118/206

119 Cooling Cooling Cooling Heating Pump, P-9M, Condenser water, 25hp motor, 460/3/60, new motor, high eff %- this is backup only, and run from emergency generator Pump P-12, Chilled water, AO Smith motor, 1991 installed, std eff., 30hp, 885rpm,c/w with VFD Pump P-13, Chilled water return, Lincoln motor, 175hp, 92% eff. - not used anymore Pump P-14, Hot water, Lincoln motor, 125hp, 92% eff. - OLD MOTOR - not used anymore Main Mechanical room, basement Main Mechanical room, basement Main Mechanical room, basement Main Mechanical room, basement Worthington, size 8 LR 13 Motor Marathon, Model 6B326T AO Smith motor, Model AT03004, S/N Lincoln motor, S/N Lincoln motor, S/N Pitkin; Condenser water Pitkin; Chilled water for 300 and/or 800 tons chiller Pitkin; Chilled water Pitkin; Hot water 1972; motor is less than 3 years old 1989; motor % 0% % % Heating Pump P-15, Hot water, Lincoln motor, 40hp, 92% eff. - OLD MOTOR; 1200 rpm; used 50% of time in winter (other 50% is P-4M) Main Mechanical room, basement Lincoln motor, S/N Pitkin; Hot water % Cooling Cooling Heating Pump P-16, CW supply, 2660gpm@100' head, Lincoln 30 hp motor, 1200 rpm; no VFD, and 90% eff. Pump P-17, 30 hp motor, approx 2001, 1160 rpm; this is sparingly used - meant as back up only to P-16; no VFD Pump, Hot water, Size 1510, 856gpm@29'he ad, 10hp, 1800rpm, prem efficiency, no VFD Main Mechanical room, basement Main Mechanical room, basement Main Mechanical room, basement Weinman, Model 8L2, S/N 17474T2 Flektrin, S/N OK59494S ITT Bell&Gossett, Model 58c, S/N Pitkin; Condenser water for 800 tons chiller Pitkin; Condenser water for 800 tons chiller Pitkin; Hot water 1989; motor is more than 10 years old 1989; motor is about 10 years old 0% 0% % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 119/206

120 Heating Cooling Cooling Cooling Cooling Cooling Pump, Hot water, Size 1510, ad, 10hp, 1800rpm, prem efficiency, no VFD Pump, chilled water, ad, 10hp, 1800rpm, premium eff., no VFD Pump, chilled water, ad, 10hp, 1800rpm, premium eff., no VFD Pump, condenser water, ad, 15hp, 1800rpm, premium eff., no VFD Pump, condenser water, ad, 15hp, 1800rpm, premium eff., no VFD Chiller, R-11, 460/3/60,MCA 1146, 890 Nom Tons Main Mechanical room, basement Main Mechanical room, basement Main Mechanical room, basement Main Mechanical room, basement Main Mechanical room, basement Main Mechanical room, basement ITT Bell&Gossett, Model 58c, S/N ITT Bell&Gossett, Model 43C, S/N ITT Bell&Gossett, Model 43C, S/N ITT Bell&Gossett, Model 58C, S/N ITT Bell&Gossett, Model 58C, S/N Trane, Model CVHE890, S/N L91F64330 Pitkin; Hot water Pitkin; Chilled water Pitkin; Chilled water Pitkin; Condenser water Pitkin; Condenser water Pitkin; Whole building % % % % % % Cooling Chiller, R-123, 460/3/60,MCA 468, 259KW, 500 Nom Tons Main Mechanical room, basement Trane, Model CVHE500, S/N L97M07845 Pitkin; Whole building % Cooling Chiller, R-11, 115/1/60,17 Amps, 800 tons - this is not used anymore Main Mechanical room, basement Trane, Centravac CV- SC-S-G7H7, S/N LOK13030 Pitkin; Whole building % Cooling Chiller, R-123, 460/3/60,MCA 361, 199KW, 320 Nom Tons Main Mechanical room, basement Trane, CVHE320, S/N L97G04750 Pitkin; Whole building % Cooling Cooling tower, 3 cell, 30hp motor, on VFD Outside, on steel frame Evapco, Model SST B3, S/N Pitkin; Chiller plant % DHW DHW, Boiler 1A, input rating 300MBH, 120/1/60, 82% eff. Main Mechanical room, basement Lochinvar, Copper Fin, Model CFN401, S/N Gas Pitkin; Whole building % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 120/206

121 DHW DHW, Boiler 1B, input rating 300MBH, 120/1/60, 82% eff., backup to 1A - though both are used Main Mechanical room, basement Lochinvar, Model CFN401PM, S/N H07H Gas Pitkin; Whole building % Heating Boiler #2, 1,795/1,453 (IN/OUT) MBH, 80% eff., 120/1/60, connected to 20,000gallon storage bullet Main Mechanical room, basement Lochinvar, Model CBN1795, S/N Gas Pitkin; Admin area heating, Modine units % Heating Boiler #3, 1,795/1,453 (IN/OUT) MBH, 80% eff., 120/1/60 Main Mechanical room, basement Lochinvar, Model CBN1795, S/N Gas Pitkin; Building heating % Heating Boiler #4, 2,085/1,672 (IN/OUT) MBH, 120/1/60; back up to boiler#3 - both are shared used, 80% eff Main Mechanical room, basement Lochinvar, Model CBN2085, S/N Gas Pitkin; Building heating % Heating Heating Heating Controls Electric Electric Boiler #5, 745/603 (IN/OUT) MBH, 120/1/60, 78% eff. Boiler #6, 745/603 (IN/OUT) MBH, 120/1/60; this is used as a back up to #5, and used only if the temp. is extreme Boiler #7, 1300/1105 (IN/OUT) MBH, 120//60, est. 86% eff. - high efficiency Air Compressors, Baldor 7.5hp motor, less than 1 yr old - high eff. Emergency generator, diesel, 45kW, 120/208 3 Phase, Ford engine Transformer, Voltage rating Y, 1000kVA Main Mechanical room, basement Main Mechanical room, basement Main Mechanical room, basement Main Mechanical Room, 1st floor Elev. Mech room, A022, in the tunnel Switchgear room A018, in the tunnel Lochinvar, Model CBN0745, S/N l Lochinvar, Model CBN0745, S/N l0079 Lochinvar, Model PBN1300, S/N E05H Honeywell, Model WP- 230, S/N , and 9362 respectively Onan, Model SEM- 4R8/8846A, S/N General Electric, G Gas Gas Gas Pitkin; Cafeteria preheating Pitkin; Cafeteria preheating Pitkin; Preheating AC- 1L, library unit Pitkin; Whole building Pitkin; Emergency loads like lights etc. Pitkin; Gymnasium, Pool % % % % 1989 est. 0% % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 121/206

122 Electric Electric Electric Electric Electric Emergency generator, diesel, 45kW, 120/208 3 Phase, Ford engine Dry Type Transformer, Class AA, Voltage rating KV, 1000kVA Emergency generator, diesel, 85kW, 120/208 3 Phase, Cummins engine Emergency generator, diesel, 400kW, 277/480 3 Phase, Cummins engine Emergency generator, diesel, 115kW, 277/480 3 Phase, Cummins engine Gymnasium Electrical room Gymnasium Electrical room Main Electrical room, basement Main Electrical room, basement Main Electrical room, basement Onan, Model 45EM- 4R8/8846A, S/N Olsun Electrics Corporation, Model CMV1000LO-4No. A Onan, Model 85KW- 4R8/54011, S/N Onan, Model 400DFV- 4XR8/8857C, S/N Kohler, Model 115RZ278, S/N Pitkin; Emergency loads Pitkin; Emergency loads Pitkin; Emergency loads Pitkin; Emergency loads Pitkin; Emergency loads 1989 est. 0% % 1989 est. 0% 1989 est. 0% 1989 est. 0% Electric Transformer, Voltage rating Y, 3000kVA, est % eff. Main Electrical room, basement General Electric, G Pitkin building % Electric Transformer, Voltage rating Y, 1500kVA, est % eff. Main Electrical room, basement General Electric, R Pitkin building % Electric Transformer, Voltage rating Y, 2000kVA, est % eff. Main Electrical room, basement General Electric, G Pitkin building % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 122/206

123 West Hall Building System Description Physical Location Make/ Model Fuel Space served Date Installed Estimated Remaining useful life % Heating Heating Heating Heating Heating B-1; RBI heating boiler, Natural gas, atmospheric, 1,160,000 BTUH input, 939,600 BTUH output, 82% thermal efficiency, 178F supply temp B-2; RBI heating boiler, Natural gas, atmospheric, 1,160,000 BTUH input, 939,600 BTUH output, 82% thermal efficiency, 178F supply temp P-1; Heating Hot Water supply pump, Marathon Electric motor, 3HP, 1730 RPM, 84% efficiency, Type TDR, 3 PH, 60 Hz, controlled by VFD motor, pressure gauge shows corrosion P-2; Heating Hot Water supply pump, Marathon Electric motor, 3HP, 1730 RPM, 84% efficiency, Type TDR, 3 PH, 60 Hz, controlled by VFD motor VFD-1; Yaskawa Variable Frequency Drive, at time of audit was W131; Mechanical Room W131; Mechanical Room W131; Mechanical Room W131; Mechanical Room W131; Mechanical Room RBI, 8900 Series, Model #HB1160, Serial # RBI, 8900 Series, Model #HB1160, Serial # Marathon Electric, Model #DVB 182TTDR5337AA P, Cat #M361 Marathon Electric, Model #DVB 182TTDR5337AA, Cat #M361 Yaskawa, Varispeed E7, Model #CIMR- E7U42P2, Spec #42P21B Natural Gas Natural Gas All areas % All areas % Electric All areas % Electric All areas % Electric All areas % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 123/206

124 reading Hz Heating Heating Heating Heating Heating Heating VFD-2; Yaskawa Variable Frequency Drive, at time of audit was reading Hz UH-1; Trane hot water unit heater, 1760 CFM, 97,100 BTUH output, 200F max output temp., served by separate hot water loop from main boiler supply UH-2; Trane hot water unit heater, 1760 CFM, 97,100 BTUH output, 200F max output temp., model info taken from drawings CUH-1; Trane cabinet unit heater, 15.9 MBH capacity, model info taken from drawings CUH-2; Trane cabinet unit heater, 15.9 MBH capacity, model info taken from drawings ECH-1; QMARK electric heater, recessed, 13,700 BTUH, 4 kw, 283 CFM, model info taken from drawing W131; Mechanical Room W131; Mechanical Room Storage Room 132 Lounge 109 Stair Vestibule - 102A Yaskawa, Varispeed E7, Model #CIMR- E7U42P2, Spec #42P21B Trane, Model #UHSA126S8EAA1T0 0000CF, Serial #F06E36409 Trane, Model #UHSA020S, Serial #NA Trane, Model #FFEB0201, Serial #NA Trane, Model #FFEB0201, Serial #NA QMARK, Model #CDF- 547, Serial #NA Electric All areas % Electric/ Hot Water Loop Electric/ Hot Water Loop Electric/ Hot Water Loop Electric/ Hot Water Loop Electric W131; Mechanical Room Storage Room % % Lounge % Stair % Vestibule - 102A % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 124/206

125 Heating Heating Heating/Cooli ng Heating/Cooli ng Cooling Cooling Cooling ECH-2; QMARK electric heater, recessed, 13,700 BTUH, 4 kw, 283 CFM, model info taken from drawing EWH-1; QMARK electric heater, surface, 13,650 BTUH, 4 kw, model info taken from drawing RTU-1; Trane rooftop unit, 27,000 CFM, 410 MBH output, 81% thermal efficiency, 80 tons cooling capacity, 15.3 EER, R- 22, MFR date 7/2006 RTU-2; Trane rooftop unit, 7,000 CFM, 203 MBH output, 81% thermal efficiency, 20 tons cooling capacity, 10.7 EER, R- 22, MFR date 7/2006 ACCU-1; Trane Air Cooled Condensing unit, EER 11.5, R-22, 28,200 CFM, MFR date 2006 ACCU-2; Trane Air Cooled Condensing unit, EER 10.9, R-22, 49,600 CFM, MFR date 2006 ACR-1; Sanyo condensing unit, Split type air Vestibule - 202A Stair Rooftop Rooftop Rooftop Rooftop Rooftop QMARK, Model #CDF- 547, Serial #NA QMARK, Model #AWH4407, Serial #NA Trane, Model #SFHFC754L777C9BD 9011A0CE0G00L0NRT H, Serial #C06D03382 Trane, Voyager, Model #YCH211C4LOCA, Serial # D, 250,000 BTUH heat input, 203,000 BTUH heat output, nominal efficiency 81.2% Trane, Model #RAUCC404BY13ABD , Serial #C06D03269 Trane, Model #RAUCC804BP102BD 00105, Serial #C06D03270 Sanyo, inverter, Model #CL1271, Serial # Electric Vestibule - 202A % Electric Stair % Natural Gas/ Electric Natural Gas/ Electric Partial 2nd and 3rd floors % Stair % Electric AHU % Electric AHU % Electric MDF % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 125/206

126 Cooling Cooling Cooling Cooling Cooling Cooling conditioner, R-410A refrigerant, MFR date 04/2006, EER 10.3 ACR-2; Sanyo condensing unit, Split type air conditioner, R-410A refrigerant, MFR date 04/2006, EER 10.3 ACR-3; Sanyo condensing unit, Split type air conditioner, R-410A refrigerant, MFR date 04/2006, EER 10.3 ACR-4; Sanyo condensing unit, Split type air conditioner, R-410A refrigerant, MFR date 04/2006, EER 9.9 ACR-5; Sanyo condensing unit, Split type air conditioner, R-410A refrigerant, MFR date 05/2006, EER 10.6 ACR-6; Sanyo condensing unit, Split type air conditioner, R-410A refrigerant, MFR date 04/2006, EER 9.9 Sanyo evaporator unit, Split type air conditioner, R-410A refrigerant, matching outdoor unit Rooftop Rooftop Rooftop Rooftop Rooftop W309A; Electrical Room Sanyo, inverter, Model #CL1271, Serial # Sanyo, inverter, Model #CL1271, Serial # Sanyo, Sanyo PAC DC inverter, Model #C3672R, Serial # Sanyo, inverter, Model #CL1872, Serial # Sanyo, Sanyo PAC DC inverter, Model #C3672R, Serial # Sanyo, Model #KH3672R, Serial # Electric IDF % Electric IDF % Electric W309A; Electrical Room % Electric UPS Room % Electric Electric Dimmer Room W309A; Electrical Room % % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 126/206

127 Ventilation Ventilation Ventilation Ventilation Ventilation Ventilation CH3672R/C3 672R, Unit has been shut off since area it cools is electrical room and unnecessary AHU-1; Trane air handling unit contains VFD controls on supply and return side, 15,000 CFM, with hot water coil AHU-2; Trane air handling unit, 24,700 CFM, 410 MBH output, 81% thermal efficiency, gas-fired unit VFD for AHU-1; Trane Variable Frequency Drive controls return air flow for AHU- 1 EF-1; Loren Cook exhaust fan, 1/2 HP, 1640 Design CFM, Design SP, 1550 RPM, 1 PH, 60 Hz, 115V, MFR date 4/2006 EF-2; Penn ceiling mounted exhaust fan, 300 CFM, model info taken from drawings SEF-1; Loren Cook Smoke Exhaust fan, 30 HP, 62,500 Design CFM, 1725 RPM, 460V, 3 PH, 60 Hz, Design SP 1.0, MFR date 4/2006 W131; Mechanical Room Rooftop W131; Mechanical Room Rooftop 1st-Floor Rooftop Trane, M-series Climate Changer, Model #MCCB030UA0D0UB, Serial #K06D49882 Trane, Model #RAUCC804BP102BD 00105, Serial #C06D03270 Trane, TR1 series, Model #NA, Serial #NA Loren Cook, Model #135 ACRU, Serial # / Penn, Model #Z8H, Serial #NA Loren Cook, Model #660 CAS, Serial # / Electric/ Hot Water Loop Natural Gas First Floor % Partial 2nd and 3rd floors % Electric AHU % Electric Electric Nat. Media Lab 326 Elevator Machine Room % % Electric All areas % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 127/206

128 Ventilation Ventilation Ventilation Ventilation Ventilation Ventilation Distribution System SEF-2; Loren Cook Smoke Exhaust fan, 30 HP, 62,500 Design CFM, 1725 RPM, 460V, 3 PH, 60 Hz, Design SP 1.0, MFR date 4/2006 TEF-1; Loren Cook Toilet Exhaust fan, 1/2 HP, 1465 Design CFM, 1550 RPM, 115V, 1 PH, 60 Hz, Design SP 0.75, MFR date 4/2006 TEF-2; Loren Cook Toilet Exhaust fan, 1/2 HP, 1160 Design CFM, rest of nameplate blocked by antenna, MFR date 4/2006 TEF-3; Penn, 75 CFM, direct drive, ceiling mounted, model info taken from drawings TEF-4; Penn, 75 CFM, direct drive, ceiling mounted, model info taken from drawings PEF-1; Thybar power exhaust fan, mounted next to RFU- 2, 1/2 HP, 1725 RPM, 3 PH, 60 Hz, MFR date 4/25/2006 Sterling hydronic baseboard with copper elements, 1" tube size, 680 BTUH/LF, model info Rooftop Rooftop Rooftop 1st-Floor 3rd-Floor Rooftop First Floor, Stair 2 Loren Cook, Model #660 CAS, Serial # / Loren Cook, Model #135 ACE, Serial #214S / Loren Cook, Model #135 ACE, Serial #214S / Penn, Model #ZT, Serial #NA Penn, Model #ZT, Serial #NA Thybar, Thycurb, Model #TPE , Serial #NA Sterling, Model #VB- AR-PM, Serial #NA Electric All areas % Electric Electric Toilets 105,106,205,20 6,305,306 Toilets 217,218,321, % % Electric Toilet 127A % Electric Toilet 326C % Electric RTU % Hot Water Loop Stair % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 128/206

129 taken from drawings Distribution System Distribution System Distribution System Domestic Hot Water Electric Transformers Sterling hydronic baseboard with copper elements, 1" tube size, 680 BTUH/LF, model info taken from drawings Sterling hydronic baseboard with copper elements, 1" tube size, 680 BTUH/LF, model info taken from drawings Sterling hydronic baseboard with copper elements, 1" tube size, 680 BTUH/LF, model info taken from drawings DHW-1; AO Smith Preferred, direct vent, 100 gallons capacity, 150,000 BTUH input, 95% thermal efficiency, gal/hr, MFR date 5/18/2006, Water Temperature setpoint was 122F, gasfired sealed combustion ETR; GE electric transformer, Nema class AA dry type transformer, 30.0 kva, 60 Hz, 3 PH, 5.4% impedance, Type QL First Floor, Vestibule 102A First Floor, Stair 1 Second Floor, Vestibule 202A W131; Mechanical Room W31; Mechanical Room Sterling, Model #VB- AR-PM, Serial #NA Sterling, Model #VB- AR-PM, Serial #NA Sterling, Model #VB- AR-PM, Serial #NA AO Smith Preferred, Cyclone X-tra high efficiency (XHE), Model #BTH , Serial #E06M GE, Catalog #9T23Q9872, Serial #NA Hot Water Loop Hot Water Loop Hot Water Loop Natural Gas Vestibule 102A % Stair % Vestibule 202A % All areas % Electric All areas % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 129/206

130 Electric Transformers Electric Transformers Elevators Elevators Power System Lighting TR-1; GE transformer, Nema AA dry type transformer, kva, 60 HZ, 3 PH, 4.8% impedance, Type QL, MFR date 2/2006 TR-1G; GE transformer, K-factor TransforMor e, Nema Class AFA dry type transformer, 300 kva, 60 HZ, 3 PH, 3.5% Impedance E-1; Imperial hydraulic elevator, 30 HP AC motor E-2; Imperial hydraulic elevator, 30 HP AC motor UPS; Mitsubishi Uninterruptibl e Power System See Details Appendix A W309A; Electrical Room W309A; Electrical Room W131; Mechanical Room W131; Mechanical Room W129A; UPS Room GE, Catalog #9T23Q9876, Serial #Q GE, K-factor TransforMore, Catalog #9T36G0008G53, Serial #K Imperial, Model #NA, Serial #NA Imperial, Model #NA, Serial #NA Mitsubishi, UPS series, Model #2033D, Serial #NA Electric All areas % Electric All areas % Electric All areas % Electric All areas % Electric All areas % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 130/206

131 Building System DHW DHW HVAC HVAC HVAC HVAC HVAC HVAC Ventilation Ventilation Ventilation Ventilation Ventilation Description DHW: Hot water heater, 125MBH input, 84% eff. Rated, 75 gallon tank DHW: Hot water heater, 154MBH input, 80% est. Rated, 75 gallon tank RTU-D, 5 tons, 2000cfm est., 1 hp evap. motor, 208/3/60, DX cooling, gas heating (60/48 in/out MBH) HVAC-3, 17 tons, 5 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (400/300 in/out MBH) RTU-E, 5 tons, 2000cfm est., 1 hp evap. motor, 208/3/60, DX cooling, gas heating (60/48 in/out MBH) HVAC-2, 17 tons, 7.5 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (400/300 in/out MBH) HVAC-1, 11 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (300/225 in/out MBH) HVAC-19, RTU-MZ-1, MCA210, R410A DX Cooling, gas heating, 600/480 MBH in/out, 10hp blower, est. 24 tons, 10000cfm, 3000cfm OA Exhaust fan, EF-1, 1.5hp, 208/1/60, 4400cfm@1"SP Exhaust fan, EF-2, 1.5hp, 208/1/60, 4200cfm@1"SP Exhaust fan, EF-3, 1.5hp, 208/1/60, 4200cfm@1"SP Exhaust fan, EF-4, 1/8hp, 115/1/60, 200cfm Supply fan, SF-1, 0.75hp, 208/1/60, 3100cfm@0.75"SP Physical Location Corner of Room Mechanical room E-173 Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall Make/ Model Rheem Rudd, Model G75-125, S/N URNG0207G00347 AO Smith, Model BT , S/N MF Trane, Model YHC060.., S/N L Trane, Model BYC200G3HOBC, S/N S D Trane, Model YHC060.., S/N L Trane, Model BYC200G3HOBC, S/N S D Trane, Model BYC130G3HOBC, S/N nameplate N/A Mammoth, Model ZP-154, S/N Loren Cook, Model 245U8B, S/N 214S Loren Cook, Model 245U8B, S/N 214S Loren Cook, Model 245U8B, S/N 214S Loren Cook, Model 90C15DM, S/N 214S Loren Cook, Model 150ASP-T, S/N 214S Fuel Gas Gas Gas/ Gas/ Gas/ Gas/ Gas/ Gas/ Space served Whole building- Ender hall Whole building- Ender hall Ender hall, room 111,113, 115 Ender hall, room 114 Ender hall, room 110,112 Ender hall, room 106 Ender hall, theater Ender hall, lobby Ender hall, kitchen Ender hall, kitchen Ender hall, kitchen Ender hall, kitchen Ender hall, kitchen Year Equip Installed Estimated Remaining useful life % % % % % % % % % % % % % % Ventilation Supply fan, SF-2, Ender Hall Loren Cook, Model Ender hall, % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 131/206

132 Ventilation HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC 0.75hp, 208/1/60, Supply fan, SF-3, 0.75hp, 208/1/60, HVAC-15, 11 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (300/225 in/out MBH) AC-1, 17 tons, 7.5 hp evap. motor, 208/3/60, DX cooling, gas heating (350/284 in/out MBH) HVAC-16, 5 tons, 1 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (130/102 in/out MBH) HVAC-18, 11 tons est., 3 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (300/225 in/out MBH) RTU-17, 5 tons, 2000cfm est., 1 hp evap. motor, 208/3/60, DX cooling, gas heating (60/48 in/out MBH) RTU-E, 5 tons, 2000cfm est., 1 hp evap. motor, 208/3/60, DX cooling, gas heating (60/48 in/out MBH) HVAC-14, 12.5 tons, 50000cfm est., 5 hp evap. motor, 208/3/60, DX cooling, gas heating (250/203 in/out MBH) HVAC-13, 11 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (300/225 in/out MBH) HVAC-12, 8.5 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (250/187 in/out MBH) HVAC-11, 11 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (300/225 in/out MBH) HVAC-10, 11 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (300/225 in/out MBH) HVAC-9, 11 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (300/225 in/out MBH) roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof 150ASP-T, S/N 214S Loren Cook, Model 150ASP-T, S/N 214S Trane, Model BYC130G3HOAA, S/N Y D Trane, Model YCD210C3HCBB, S/N R D Trane, Model BYC060F3HOBA, S/N S D Trane, Model SPOB HB, S/N 083M Trane, Model YHC060.., S/N L Trane, Model YHC060.., S/N L Trane, Model YCD151E3HKAA, S/N D Trane, Model BYC130G3HOAA, S/N Y D Trane, Model BYC100G3HOBB, S/N SL1614A Trane, Model BYC130G3HOAA, S/N S Trane, Model BYC130G3HOAA, S/N S D Trane, Model BYC130G3HOAA, S/N S D Gas/ Gas/ Gas/ Gas/ Gas/ kitchen Ender hall, kitchen Ender hall, room 193 Ender hall, room 195,197,199 Ender hall, room 191 Ender hall, room 187 Ender hall, room % % % % % % Gas/ Ender hall % Gas/ Gas/ Gas/ Gas/ Gas/ Gas/ Ender hall, room 181 Ender hall, room 180 Ender hall, room 157 Ender hall, room 170 Ender hall, room 175 Ender hall, room % % % % % % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 132/206

133 HVAC HVAC HVAC HVAC HVAC RTU, 10 tons, 5 hp evap. motor, 208/3/60, DX cooling, gas heating (250/200 in/out MBH) HVAC-8, 11 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (300/225 in/out MBH) HVAC-7, 11 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (300/225 in/out MBH) HVAC-5, 8.5 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (250/187 in/out MBH) HVAC-4, 8.5 tons, 3 hp evap. motor, 208/3/60, DX cooling R-22, gas heating (250/187 in/out MBH) Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Ender Hall roof Trane, Model YCD120..., S/N L Trane, Model BYC130G3HOAA, S/N S D Trane, Model BYC130G3HOAA, S/N S D Trane, Model BYC100G3HOBB, S/N SL D Trane, Model BYC100G3HOBB, S/N SL D Gas/ Ender hall % Gas/ Gas/ Gas/ Gas/ Ender hall, room 155 Ender hall, room 153 Ender hall, room 134 Ender hall, room % % % % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 133/206

134 Building System Heating/ Cooling Heating/ Cooling Heating/ Cooling Heating/ Cooling Heating/ Cooling Description RTU-2C; Trane Voyager rooftop unit, forced air furnace with cooling unit, 600,000 BTUH heating input, 486,000 BTUH heating output, 81% thermal efficiency, 35 tons cooling capacity, EER 10.3, 15 HP premium efficiency supply fan motor with factory installed VFD, R-22 RTU-1D; Trane Voyager rooftop unit, forced air furnace with cooling unit, 600,000 BTUH heating input, 486,000 BTUH heating output, 81% thermal efficiency, 35 tons cooling capacity, EER 10.3, 15 HP premium efficiency supply fan motor with factory installed RTU-1C; Trane Voyager rooftop unit, forced air furnace with cooling unit, 600,000 BTUH heating input, 486,000 BTUH heating output, 81% thermal efficiency, 35 tons cooling capacity, EER 10.3, 15 HP premium efficiency supply fan motor with factory installed RTU-2B; Trane Voyager rooftop unit, forced air furnace with cooling unit, 600,000 BTUH heating input, 486,000 BTUH heating output, 81% thermal efficiency, 35 tons cooling capacity, EER 10.3, 15 HP premium efficiency supply fan motor with factory installed RTU-2A; Trane Voyager rooftop unit, forced air furnace with cooling Physical Location Rooftop, Upper Roof Rooftop, Upper Roof Rooftop, Upper Roof Rooftop, Upper Roof Rooftop, Upper Roof Technology Education Building Make/ Model Fuel Space served Trane, Voyager, Model #YCD420A4HH2B 7GH4AB0D0F0HJ0 000, Serial #C01J61670 Trane, Voyager, Model #YCD420A4HH2B 7GH4AB0D0F0HJ0 000, Serial #C01J61668 Trane, Voyager, Model #YCD420A4HH2B 7GH4AB0D0F0HJ0 000, Serial #C01J61671 Trane, Voyager, Model #YCD420A4HH2B 7GH4AB0D0F0HJ0 000, Serial #C01J61669 Trane, Voyager, Model #YCD151C4HGAA, Serial Natural Gas/ Electric Natural Gas/ Electric Natural Gas/ Electric Natural Gas/ Electric Natural Gas/ Electric Main section of building Main section of building Main section of building Main section of building Main section of building, near front entrance Date Insta lled Estimated Remaining useful life % % % % % % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 134/206

135 Heating/ Cooling Cooling Cooling Heating/ Cooling Heating/ Cooling unit, 5,000 CFM, 11.3 SEER 250,000 BTUH heating input, 203,000 BTUH heating output, 81% thermal efficiency, 15 tons cooling capacity, EER 11.8 RTU-1E; Trane Voyager rooftop unit, forced air furnace with cooling unit, 600,000 BTUH heating input, 486,000 BTUH heating output, 81% thermal efficiency, 35 tons cooling capacity, EER 10.3, 15 HP premium efficiency supply fan motor with factory installed AC-1; Liebert condenser for split system AC, R-22, 14,100 BTUH cooling capacity, with 3.6 kw electric reheat, no model info on unit, model info taken from drawings, connected to inside unit, Liebert, Model #MMD12E AC-2; Liebert condenser for split system AC, R-22, 14,100 BTUH cooling capacity, with 3.6 kw electric reheat, no model info on unit, model info taken from drawings, connected to inside unit, Liebert, Model #MMD12E RTU-1B; Trane Voyager rooftop unit, forced air furnace with cooling unit, 350,000 BTUH heating input, 284,000 BTUH heating output, 81% thermal efficiency, 40 tons cooling capacity, EER 10.3, 15 HP premium efficiency supply fan motor with factory installed VFD, R-22 RTU-1A; Trane Voyager rooftop unit, forced air furnace with cooling unit, 350,000 BTUH heating input, Rooftop, Upper Roof Rooftop, Upper Roof Rooftop, Upper Roof Rooftop, Lower Roof (Larger) Rooftop, Lower Roof (Larger) #Z D Trane, Voyager, Model #YCD420A4HH2B 7GH4AB0D0F0HJ0 000, Serial #C01J616** Liebert, Model #PFC014A, Serial #NA Liebert, Model #PFC014A, Serial #NA Trane, Voyager, Model #YCD480A4HH2B 7MH4AB0D0F0J00 00, Serial #C01J61672 Trane, Voyager, Model #YCH181CHFBA, Serial #Z411018** Natural Gas/ Electric South Section of building % Electric MDF 117B % Electric Cont. 117B % Natural Gas/ Electric Natural Gas/ Electric North Section of building North Section of building % % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 135/206

136 Heating Heating Heating Heating Heating Heating Heating Ventilation Ventilation 284,000 BTUH heating output, 81% thermal efficiency, 40 tons cooling capacity, EER 10.3/11.5 SEER, 6,000 CFM, 15 HP premium efficiency supply fan motor with factory installed, model info taken from drawings B-1; Weil-McLain boiler, 2 sections, sealed combustion, forced draft, 1,560,000 BTUH input, 1,099,000 BTUH output, 81% thermal efficiency, with Weil-McLain burner controls WFF P-2 control system P-1; Heating hot water circulation pump motor, Baldor, 3PH, 60 Hz, 1725 RPM, 1.5 HP with Siemens controls, 80% efficiency P-2; Heating hot water circulation pump motor, Baldor, 3PH, 60 Hz, 1725 RPM, 1.5 HP with Siemens controls, this is the lead pump, 80% efficiency UH-1; Vulcan hot water unit heater, 480 CFM, 22.7 MBH heating input, nameplate info taken from drawings UH-2; Vulcan hot water unit heater, 480 CFM, 22.7 MBH heating input, nameplate info taken from drawings CUH-1,2; Vulcan cabinet unit heater, 7.0 MBH heating input, nameplate info taken from drawings CUH-3; Vulcan cabinet unit heater, 2.8 MBH heating input, nameplate info taken from drawings EF-1; Carnes Power ventilator exhaust fan, 1 PH, 115V, 60 Hz,.5 HP, 400 CFM EF-2; Carnes Power ventilator exhaust Mechanical Room, First Floor Mechanical Room, First Floor Mechanical Room, First Floor Mechanical Room, First Floor Mechanical Room, First Floor Stair 1, Stair 2 Vestibule near South Entrance Rooftop, Lower Roof (Larger) Rooftop, Lower Roof Weil-McLain boiler, Series #2, Model #LGB 13W/SN Baldor, Catalog #JMM3154T, Spec. #35K360-37Z Baldor, Catalog #JMM3154T, Spec. #35K360-37Z Vulcan, Model HV- 35, Serial #NA Vulcan, Model HV- 35, Serial #NA Vulcan, Model #SRG-A 624, Serial #NA Vulcan, Model #W- A 626 Carnes, Model #VEBK 08L1A1UA20SPC?, Serial # Carnes, Model #VEBK15P1A1UA2 Natural Gas All Areas % Electric All Areas % Electric All Areas % Electric/ Hot Water Loop Electric/ Hot Water Loop Electric/ Hot Water Loop Hot Water Loop Mechanical Room 125 Mechanical Room % % Stairwells % Vestibule near South Entrance % Electric Bathrooms % Electric Bathrooms % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 136/206

137 Ventilation Ventilation Ventilation Controls Transformer Transformer Domestic Hot Water Domestic Hot Water Domestic Hot Water Domestic Hot Water fan, 1 PH, 115V, 60 Hz,.5 HP, 2,000 CFM EF-3; Carnes Power ventilator exhaust fan, 3PH, 60 Hz, 208V, 1.5 HP, 6,600 CFM EF-4; Greenheck,.5 HP, 1 PH, 115V, 60 Hz, 1,200 CFM, model info taken from drawings EF-5; Greenheck condensate hood,.25 HP, 115V, 60 Hz, 500 CFM, model info taken from drawings Trane Tracer Summit, universal programmable control module, BMS module, connected to computers in Pitkin GE transformer (smaller of two transformers), NEMA class AA dry type, kva, 60 Hz, 3PH, 4.4% Impedance GE transformer (larger of two transformers), NEMA class AA dry type, kva, 60 Hz, 3PH, 2.7% Impedance, Type QL AO Smith hot water storage tank, custom, 119 gallon storage capacity, supply temp. at 120F Bell & Gossett, domestic hot water circulation pump, 214W DHW-3: AO Smith, domestic hot water heater attached to AO Smith 119 gallon storage tank, atmospheric, minimal storage, 300,000 BTUH input, 247,200 BTUH output, 82.4% thermal efficiency DHW-1; AO Smith, Master-fit domestic hot water heater, atmospheric, 199,000 BTUH input, 193 gal/hr recovery, 100 (Larger) Rooftop, Lower Roof (Larger) Rooftop Rooftop Mechanical Room, First Floor Mechanical Room, First Floor Mechanical Room, First Floor Mechanical Room, First Floor Mechanical Room, First Floor Mechanical Room, First Floor Mechanical Room, First Floor 0SPC?, Serial # Carnes, Model #VUBK30T1G1UA 20SPCA, Serial # Greenheck, Model #CUBE-140HP, Serial #NA Greenheck, Model #GB-80-4, Serial #NA Trane, Tracer Summer, Model #NA, Serial #NA GE, Catalog #9T23Q3575, Serial #K GE, K Factor, Catalog #9T23B3478G13, Serial #K AO Smith, Model #TJV 120A000, Serial #LL Bell & Gossett, Model #PL-36B, Serial #1BL003 AO Smith, Model #HW , Serial #932 K AO Smith, Masterfit, Model #BTR , Serial #MH Electric Simulated Manufacturing Lab % Electric Kitchen Hood % Electric Condensate Hood % Electric All Areas % Electric All Areas % Electric All Areas % Hot Water Coil Pantry % Electric Pantry % Natural Gas Natural Gas Pantry % All Areas % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 137/206

138 Domestic Hot Water Domestic Hot Water Lighting gallons of storage capacity DHW-2; AO Smith, Master-fit domestic hot water heater, atmospheric, 199,000 BTUH input, 193 gal/hr recovery, 100 gallons of storage capacity Bell & Gossett, domestic hot water circulation pump, 214W See details appendix A Mechanical Room, First Floor Mechanical Room, First Floor AO Smith, Masterfit, Model #BTR , Serial #MH Bell & Gossett, Model #PL-36B, Serial #1BL003 Natural Gas All Areas % Electric All Areas % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 138/206

139 Building System Electric Electric Electric Electric Electric Electric HVAC HVAC HVAC HVAC Ventilation Description DC Generator for elevators, 10kw output, 160V, 63A DC Motor for elevators, 20hp, 160V, 63A AC Motor, 15hp,208/3/60 DC Generator for elevators, 10kw output, 160V, 63A DC Motor for elevators, 20hp, 160V, 63A AC Motor, 15hp,208/3/60 RT-1,17500cfm, 20hp supply fan, 3hp return fan, fresh air 4000 CFM, DX cooling R22, gas heating 500/400 MBH in/out)- burner model 050AAC, rated for 625MBH max. RT-2,17500cfm, 20hp supply fan, 3hp return fan, fresh air 4000 CFM, DX cooling R22, gas heating 500/400 MBH in/out)- burner model 050AAC, rated for 625MBH max. RT-3,17500cfm, 20hp supply fan, 3hp return fan, fresh air 4000 CFM, DX cooling R22, gas heating 500/400 MBH in/out)- burner model 050AAC, rated for 625MBH max. RT-4,17500cfm, 20hp supply fan, 3hp return fan, fresh air 4000 CFM, DX cooling R22, gas heating 500/400 MBH in/out)- burner model 050AAC, rated for 625MBH max. EF-1, Exhaust fan, 115/1/60, 1/4hp, Physical Location Ciarco, Elevator machine room Ciarco, Elevator machine room Ciarco, Elevator machine room Ciarco, Elevator machine room Roof - Ciarco Roof - Ciarco Roof - Ciarco Roof - Ciarco Roof - Ciarco Ciarco Learning Center Make/ Model Fuel Space served OTIS, , type 7 CA OTIS, , type 89R OTIS, , type 74-ES OTIS, , type 7 CA OTIS, , type 89R OTIS, , type 74-ES McQuay, Model RPS060CSA, S/N 39D McQuay, Model RPS060CSA, S/N 39D McQuay, Model RPS060CSA, S/N 39D McQuay, Model RPS060CSA, S/N 39D Carnes, Model VEBK 18L Gas/ Gas/ Ciarco - whole building Ciarco - whole building Ciarco - whole building Ciarco - whole building Ciarco - whole building Ciarco - whole building Ciarco 2nd floor Ciarco 2nd floor Year Equi p Insta lled Estimated Remaining useful life % % % % % % % % % Gas/ Ciarco 1st floor % Gas/ Ciarco 1st floor % Restrooms % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 139/206

140 Heating Heating Heating 2000 CFM 1A1NA20APCX, S/N Hot water boiler, Raypak, B /1203 MBH Boiler room, Boiler Monitor, in/out, 120/1/60, basement other details N/A 80% eff. - 2 nos. Hot water pumps, 240gpm@30'head, Baldor motor, 3 hp - 2 nos. (one is standby) Hot water unit heaters, total of 8 in the basement, fhp motor, 120/1/60 Boiler room, basement Basement Paco pumps, Model VI3007E2UAB689D McQuay, 16-27MBH Gas Ciarco building % Ciarco building % Basement % Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 140/206

141 Appendix B: Lighting Study Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 141/206

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171 APPENDIX C: THIRD PARTY ENERGY SUPPLIERS Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 171/206

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173 APPENDIX D: GLOSSARY AND METHOD OF CALCULATIONS Glossary of ECM Terms. Net ECM Cost: The net ECM cost is the cost experienced by the customer, which is typically the total cost (materials + labor) of installing the measure minus any available incentives. Both the total cost and the incentive amounts are expressed in the summary for each ECM. Annual Energy Cost Savings (AECS): This value is determined by the audit firm based on the calculated energy savings (kwh or Therm) of each ECM and the calculated energy costs of the building. Lifetime Energy Cost Savings (LECS): This measure estimates the energy cost savings over the lifetime of the ECM. It can be a simple estimation based on fixed energy costs. If desired, this value can factor in an annual increase in energy costs as long as the source is provided. Simple Payback: This is a simple measure that displays how long the ECM will take to breakeven based on the annual energy and maintenance savings of the measure. ECM Lifetime: This is included with each ECM so that the owner can see how long the ECM will be in place and whether or not it will exceed the simple payback period. Additional guidance for calculating ECM lifetimes can be found below. This value can come from manufacturer s rated lifetime or warranty, the ASHRAE rated lifetime, or any other valid source. Operating Cost Savings (OCS): This calculation is an annual operating savings for the ECM. It is the difference in the operating, maintenance, and/or equipment replacement costs of the existing case versus the ECM. In the case where an ECM lifetime will be longer than the existing measures (such as LED lighting versus fluorescent) the operating savings will factor in the cost of replacing the units to match the lifetime of the ECM. In this case or in one where one-time repairs are made, the total replacement/repair sum is averaged over the lifetime of the ECM. Return on Investment (ROI): The ROI is expresses the percentage return of the investment based on the lifetime cost savings of the ECM. This value can be included as an annual or lifetime value, or both. Net Present Value (NPV): The NPV calculates the present value of an investment s future cash flows based on the time value of money, which is accounted for by a discount rate (assumes bond rate of 3.2%). Internal Rate of Return (IRR): The IRR expresses an annual rate that results in a break-even point for the investment. If the owner is currently experiencing a lower return on their capital than the IRR, the project is financially advantageous. This measure also allows the owner to compare ECMs against each other to determine the most appealing choices. ECM = Energy Conservation Measure AOCS = Annual Operating Cost Savings AECS = Annual Energy Cost Savings LOCS = Lifetime Operating Cost Savings LECS = Lifetime Energy Cost Savings LCS = Lifetime Cost Savings NPV = Net Present Value Calculation References Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 173/206

174 IRR = Internal Rate of Return DR = Discount Rate Net ECM Cost = Total ECM Cost Incentive LECS = AECS X ECM Lifetime AOCS = LOCS / ECM Lifetime LCS = LOCS+LECS Note: The lifetime operating cost savings are all avoided operating, maintenance, and / or component replacement costs over the lifetime of the ECM. This can be the sum of any annual operating savings, recurring or bulk (i.e. one-time repairs) maintenance savings, or the savings that comes from avoiding equipment replacement needed for the existing measure to meet the lifetime of the ECM (e.g. lighting change outs). Simple Payback = Net ECM Cost / (AECS + AOCS) Lifetime ROI = (LECS + LOCS Net ECM Cost) / Net ECM Cost Annual ROI = (Lifetime ROI / Lifetime) = (AECS + OCS) / Net ECM Cost 1 / Lifetime It is easiest to calculate the NPV and IRR using a spreadsheet program like Excel. Excel NPV and IRR Calculation In Excel, function =IRR(values) and =NPV(rate, values) are used to quickly calculate the IRR and NPV of a series of annual cash flows. The investment cost will typically be a negative cash flow at year 0 (total cost - incentive) with years 1 through the lifetime receiving a positive cash flow from the annual energy cost savings and annual maintenance savings. The calculations in the example below are for an ECM that saves $850 annually in energy and maintenance costs (over a 10 year lifetime) and takes $5,000 to purchase and install after incentives: Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 174/206

175 ECM and Equipment Lifetimes Determining a lifetime for equipment and ECM s can sometimes be difficult. The following table contains a list of lifetimes that the NJCEP uses in its commercial and industrial programs. Other valid sources are also used to determine lifetimes, such as the DOE, ASHRAE, or the manufacturer s warranty. Lighting is typically the most difficult lifetime to calculate because the fixture, ballast, and bulb can all have different lifetimes. Essentially the ECM analysis will have different operating cost savings (avoided equipment replacement) depending on which lifetime is used. When the bulb lifetime is used (rated burn hours/annual burn hours), the operating cost savings is just reflecting the theoretical cost of replacing the existing case bulb and ballast over the life of the recommended bulb. Dividing by the bulb lifetime will give an annual operating cost savings. When a fixture lifetime is used (e.g. 15 years) the operating cost savings reflects the avoided bulb and ballast replacement cost of the existing case over 15 years minus the projected bulb and ballast replacement cost of the proposed case over 15 years. This will give the difference of the equipment replacement costs between the proposed and existing cases and when divided by 15 years will give the annual operating cost savings. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 175/206

176 NJCEP C & I Lifetimes Measure Measure Life Commercial Lighting New 15 Commercial Lighting Remodel/Replacement 15 Commercial Custom New 18 Commercial Chiller Optimization 18 Commercial Unitary HVAC New - Tier 1 15 Commercial Unitary HVAC Replacement - Tier 1 15 Commercial Unitary HVAC New - Tier 2 15 Commercial Unitary HVAC Replacement Tier 2 15 Commercial Chillers New 25 Commercial Chillers Replacement 25 Commercial Small Motors (1-10 HP) New or Replacement 20 Commercial Medium Motors (11-75 HP) New or 20 Replacement Commercial Large Motors ( HP) New or 20 Replacement Commercial VSDs New 15 Commercial VSDs Retrofit 15 Commercial Comprehensive New Construction Design 18 Commercial Custom Replacement 18 Industrial Lighting New 15 Industrial Lighting Remodel/Replacement 15 Industrial Unitary HVAC New - Tier 1 15 Industrial Unitary HVAC Replacement - Tier 1 15 Industrial Unitary HVAC New - Tier 2 15 Industrial Unitary HVAC Replacement Tier 2 15 Industrial Chillers New 25 Industrial Chillers Replacement 25 Industrial Small Motors (1-10 HP) New or Replacement 20 Industrial Medium Motors (11-75 HP) New or Replacement 20 Industrial Large Motors ( HP) New or Replacement 20 Industrial VSDs New 15 Industrial VSDs Retrofit 15 Industrial Custom Non-Process 18 Industrial Custom Process 10 Small Commercial Gas Furnace New or Replacement 20 Small Commercial Gas Boiler New or Replacement 20 Small Commercial Gas DHW New or Replacement 10 C&I Gas Absorption Chiller New or Replacement 25 C&I Gas Custom New or Replacement (Engine Driven 25 Chiller) C&I Gas Custom New or Replacement (Gas Efficiency 18 Measures) O&M savings 3 Compressed Air (GWh participant) 8 Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 176/206

177 APPENDIX E: STATEMENT OF ENERGY PERFORMANCE FROM ENERGY STAR Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 177/206

178 APPENDIX F: INCENTIVE PROGRAMS New Jersey Clean Energy Pay for Performance The NJ Clean Energy Pay for Performance (P4P) Program relies on a network of Partners who provide technical services to clients. LGEA participating clients who are not receiving Direct Energy Efficiency and Conservation Block Grants are eligible for P4P. SWA is an eligible Partner and can develop an Energy Reduction Plan for each project with a whole-building traditional energy audit, a financial plan for funding the energy measures and an installation construction schedule. The Energy Reduction Plan must define a comprehensive package of measures capable of reducing a building s energy consumption by 15+%. P4P incentives are awarded upon the satisfactory completion of three program milestones: submittal of an Energy Reduction Plan prepared by an approved Program Partner, installation of the recommended measures and completion of a Post-Construction Benchmarking Report. The incentives for electricity and natural gas savings will be paid based on actual savings, provided that the minimum 15%performance threshold savings has been achieved. For further information, please see: Direct Install 2010 Program Direct Install is a division of the New Jersey Clean Energy Program s Smart Start Buildings. It is a turn-key program for small to mid-sized facilities to aid in upgrading equipment to more efficient types. It is designed to cut overall energy costs by upgrading lighting, HVAC and other equipment with energy efficient alternatives. The program pays up to 80% of the retrofit costs, including equipment cost and installation costs. Eligibility: Existing small and mid-sized commercial and industrial facilities with peak electrical demand below 200 kw within 12 months of applying Must be located in New Jersey Must be served by one of the state s public, regulated or natural gas companies Electric: Atlantic City Electric, Jersey Central Power & Light, Orange Rockland Electric, PSE&G Natural Gas: Elizabethtown Gas, New Jersey Natural Gas, PSE&G, South Jersey Gas For the most up to date information on contractors in New Jersey who participate in this program, go to: Smart Start New Jersey s SmartStart Building Program is administered by New Jersey s Office of Clean Energy. The program also offers design support for larger projects and technical assistance for smaller projects. If your project specifications do not fit into anything defined by the program, there are even incentives available for custom projects. There are a number of improvement options for commercial, industrial, institutional, government, and agricultural projects throughout New Jersey. Alternatives are designed to enhance quality while building in energy efficiency to save money. Project categories included in this program are New Construction and Additions, Renovations, Remodeling and Equipment Replacement. Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 178/206

179 For the most up to date information on how to participate in this program, go to: Renewable Energy Incentive Program The Renewable Energy Incentive Program (REIP) provides incentives that reduce the upfront cost of installing renewable energy systems, including solar, wind, and sustainable biomass. Incentives vary depending upon technology, system size, and building type. Current incentive levels, participation information, and application forms can be found here. Solar Renewable Energy Credits (SRECs) represent all the clean energy benefits of electricity generated from a solar energy system. SRECs can be sold or traded separately from the power, providing owners a source of revenue to help offset the cost of installation. All solar project owners in New Jersey with electric distribution grid-connected systems are eligible to generate SRECs. Each time a system generates 1,000 kwh of electricity an SREC is earned and placed in the customer's account on the web-based SREC tracking system. For the most up to date information on how to participate in this program, go to: Utility Sponsored Programs Check with your local utility companies for further opportunities that may be available. Federal and State Sponsored Programs Other federal and state sponsored funding opportunities may be available, including Block and R&D grant funding. For more information, please check Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 179/206

180 APPENDIX G: ENERGY CONSERVATION MEASURES Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 180/206

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183 ECM Category 5: (54-55) Replace Existing Electric Water Heaters with Gas Water Heaters ECM # ECM Equipment Replace Theater DHW 54kW electric with 85% AFUE gas heater Replace Dental lab 6kW electric with 85% AFUE gas heater source RS Means and similar projects RS Means and similar projects est. installed cost, $ est. incentives, $ net est. ECM cost with incentives, $ kwh, 1st yr savings kw, demand reduction/mo therms, 1st yr savings kbtu/sq ft, 1st yr savings est. operating cost, 1st yr savings, $ total 1st yr savings, $ 5, ,150 28, (958) , , ,662 27,260 4, ,050 6, (213) , ,242 6,058 2 TOTAL - 9, ,200 34, , , , ,869 2,355,766 life of measure, yrs est. lifetime energy cost savings, $ simple payback, yrs lifetime return on investment, % annual return on investment, % internal rate of return, % net present value, $ CO2 reduced, lbs/yr Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 183/206

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189 APPENDIX H: INDIVIDUAL ECMS IN ORDER OF PAYBACK PERIOD Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 189/206

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197 APPENDIX I: COLOR DECODER FOR USE WITH APPENDICES Pitkin Ciarco Ender West Tech Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 197/206

198 APPENDIX J: PHOTOVOLTAIC SHADING ANALYSIS Steven Winter Associates, Inc. - LGEA Report Bergen Community College Page 198/206

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