DACC & NMDA Central Steam Disconnect Study

DACC & NMDA Central Steam Disconnect Study NMSU Facilities and Services Department P.O. Box 30001 Las Cruces, NM 88003-8001 June 14, 2016 Final submittal 1065 S. Main St., Bldg. D, Ste. A Las Cruces, New Mexico 88005 (575) 647-1554 PO #P0159187

DACC & NMDA Central Steam Disconnect Study Table of Contents PDF Page # I. Introduction 3 II. System Requirements 4 III. Options Considered and Recommendations 7 IV. Estimated Implementation Costs Opinion of Probable Costs 9 V. Plans and Schematics Included as a separate package and Document file. VI. Photos of Existing Systems 13 VII. Proposed Equipment Information 40

I. Introduction This study is presented by RBM Engineering, Inc. of Las Cruces, NM under contract with NMSU Office of Facilities and Services by Professional Services Agreement/Purchase Order PO # 0159187. The project began with an initial discussion meeting on December 4, 2015 followed by development of proposals and contract execution on January 15, 2016. A formal kick off meeting was held on February 4 th with representatives of NMDA, DACC and OFS. Receipt of requested existing plans and floor plan files was also in February and field work commenced in March for the NMDA building and continued in April for the DACC buildings. This study is presented at the request of NMSU to provide an analysis of the heating systems currently serving the Dona Ana Community College buildings (Main Building DAMA 341, Trades/Shops, Learning Resource Center (LRC), Classroom building and Health Sciences building) and the New Mexico Department of Agriculture facility across the street. From this analysis, the study is to develop recommendations for the installation of standalone boiler systems or plants to replace the existing steam distribution and condensate return supplying these buildings from the NMSU central plant. With the installation of the standalone heating plants, the existing steam and condensate return system can be decommissioned for the southwest portion of the campus. The distribution mains can be capped off in the vicinity of the animal enclosures to the north of the Community College and Department of Agriculture buildings. New Mexico State University (NMSU) provides steam supply through their central plant facility to buildings throughout the campus. The high pressure steam (+/-100 psig) provides the main heating source for building heating and domestic hot water systems. This thermal system is distributed throughout the campus in the utility tunnel system (mainly the central portion of the campus) with direct buried piping and vaults at valves and distribution junctions at the south end of the campus. This direct buried section serves the New Mexico Department of Agriculture facility (NMDA) and the Dona Ana Community College (DACC) facility at the corners of Gregg and Espina Streets. Over the last several years, the steam and condensate return piping in this area has begun to fail and is a constant maintenance issue for NMSU facilities staff. Numerous leaks have developed and require immediate repair when they occur. It has now reached a point where new leaks appear almost as fast as the old ones are repaired. The failures are the result of the age of the piping and the breakdown of the corrosion protection and insulation systems. The heating systems for the NMDA facility originate in the main building central mechanical room located in the basement. The building originally had a boiler and heating water distribution system which was converted to the central plant steam source at some point. Heat Exchangers use the central steam for heating water and domestic hot water. The adjacent annex building to the west was constructed in 2013 and has heating water sourced from the existing main mechanical room in the original building. DACC campus consists of five buildings; Building 341 DAMA is the main building and extends in an L shape along Espina and Gregg Streets, Trades/Shops classroom building on the northwest side, Learning Resource Center (LRC), Classroom building and the Health Sciences Building. The LRC, Classroom and Health Sciences are located in the center portion of the campus behind or west of the main 341 building. Within the DACC campus, there are now three (3) main heating source locations. Building 341 contains the center basement mechanical room with a steam source and heating and domestic

water heat exchangers and the south mechanical room with a steam source and heat exchangers for heating water to the south and east additions done later for the 341 building and also the heating water source for the Health Sciences building. The third steam source comes into the LRC building and heating water is provided to the LRC and the adjacent classroom building. When the Trades/Shop building was originally constructed it contained a steam heating system. In the 2008 renovation the steam supply and condensate return system was removed and the building is now on natural gas rooftop units, unit heaters and water heaters. No steam is utilized in this building. The steam and condensate mains are completely removed from the mechanical room and the renovation plans do not define where the steam and condensate piping was capped or terminated. The NMSU Central Plant steam distribution system approaches the area from the north and is direct buried. Junction vaults occur at various points for valve access and where branches to buildings occur. The steam and condensate return mains pass the NMDA building to its west and branch lines provide steam and condensate to the NMDA main mechanical room. From there it continues south and crosses Gregg St. into the lawn area on the north side of the DACC 341 building. Once in the lawn area it tees and goes west towards the Trades building and the west end of 341 then between the Trades and 341. A branch goes under 341 in a utility tunnel below the water utilities labs into the area behind 341 and to the LRC building. The other main branch of the tee continues east in the lawn area and goes around the east side of 341 and turns south along Espina St. all the way to the south mechanical room of Main building 341. II. System Requirements: Based on our review of existing plans and site investigation there are three source sites for heating water on the DACC campus and one for the NMDA facility. The approach to replace the existing steam and condensate systems (heat exchangers, regulating stations, condensate control, capture and return equipment and all related controls) is to disconnect the steam and condensate mains and replace the steam heating source equipment with heating boilers, variable speed primary pumps and related specialties and controls. Where steam also provided domestic hot water needs, new water heaters shall be provided in those specific locations. How those boiler systems shall be arranged allow for various options to be discussed in the Recommendation section of this report. Estimations of the required system capacities for each source location were developed. The following summaries indicate these estimated heating requirements. DAMA 341 South Mechanical Room 183 DAMA 341 Central Boiler Room LRC Mechanical Room NMDA Main Mechanical Room 2,121,300 btu/hr. 1,446,000 btu/hr. 1,200,000 btu/hr. 1,895,000 btu/hr.

III. Options Considered and Recommendations: Considering the options available to disconnect the existing steam/condensate distribution system for these buildings a few approaches present themselves. The NMDA building must stand alone and independent from the DACC facilities. The DACC buildings present opportunities for either small independent heating water boiler systems or a larger more central heating boiler plant to serve multiple mechanical rooms. Utilization of modern high efficiency modular boiler systems allows small footprint equipment and multiple modules of boilers to provide backup capacity and system redundancy. Since the boilers are sealed combustion this will aid in avoiding significant combustion air openings for the boiler areas. NMDA: A new modular boiler plant consisting of two modular boilers, individual primary pumps and related controls shall be applied in the existing mechanical room in the basement. It shall be located in the vicinity of the existing steam equipment and specialties and where the original boiler was located. We shall take advantage of the existing boiler flue and path for the flue discharge. Refer to plan sheets for additional information. DACC: Option 1 Individual Boiler Systems Provide three individual boiler systems located at the three source locations for heating the campus. One in the DAMA 341 central basement mechanical room, one in the DAMA 341 south mechanical room and one at the LRC mechanical room. Each would consist of a new modular boiler plant consisting of two modular boilers, individual primary pumps and related controls shall be applied in the existing mechanical rooms or in adjacent locations. It shall be located in the vicinity of the existing steam equipment and specialties. Refer to plan sheets for additional information. The main advantage of these individual systems is increased redundancy and decentralization of equipment. Any equipment item failure or shut down for maintenance will affect a smaller portion of the facility. These will also allow for phased installation so a system can be installed and started while the remainder of the facility remains on existing systems. In this scheme, construction would start at the south end mechanical room and work further north will follow. The result is the steam mains running along Espina St. can be shut down and capped at one of the existing vaults mitigating current leaks. Option 2 Centralize Boiler Plant to serve the DAMA 341 central mechanical room and LRC mechanical room. The south mechanical room (DAMA 341) shall still have its own individual plant. The central plant would consist of a new modular boiler plant consisting of at least three modular boilers, individual primary pumps and related controls installed in a separate boiler plant in a new enclosure. It shall be located in the vicinity of the existing LRC mechanical room or condensing unit electrical yard between the two buildings. A new primary loop shall deliver heating water from the boiler plant to each existing mechanical room (341 basement and LRC) where the

existing heating pumps shall supply the buildings. A prefabricated boiler plant enclosure might be a consideration for this location. Refer to plan sheets for additional information. The main advantage of this central plant is a reduction in the number of individual plants and equipment to maintain and monitor. Construction phasing opportunities are similar to the individual plants since the south mechanical room would still be an independent system. Disadvantage is that the location of this plant will have to be carefully considered due to the area proposed is congested and a number of utilities cross the area. Recommendation for DACC is to utilize individual smaller systems at the three locations outlined. Existing Steam Distribution and Condensate Return System: Two considerations apply to the existing steam and condensate return system. Upon the disconnection of the steam and condensate systems to what extent is it capped and abandoned or completely dug up and removed. In either scenario, NMSU will have to determine where the main system disconnection is made and at that vault location an end of main condensate trap will have to be installed. For purposes of this report, the disconnection point is indicated to be slightly north of the NMDA building where a vault occurs at the branch junction. This disconnection could be considerably further north in the vicinity of the animal holding pens if no other branch mains tie in. This is a consideration for NMSU. The extent and final location of the disconnection shown in this study can be updated and revised. Whether the piping is completely removed or abandoned in the areas of direct burial is really a cost and disruption discussion. Removal means working across Gregg St., digging up the landscaping around the exterior (north and east) perimeter of DAMA 341 building and related sidewalk removal and repair. Recommendation for the steam system disconnect is to decommission the steam and condensate return piping, demolish existing piping and specialties in the mechanical rooms and vaults and abandon all direct buried sections. This is due to the high cost of this demolition work which would disrupt landscaped areas and required street removal and patching (Gregg St.) and sidewalk repairs. Future projects, street repair or resurfacing or landscaping can allow the complete demolition of this piping in the future. Review of this report by NMSU Facilities staff indicates that the preference is to demolish the existing steam and condensate mains completely and not abandon any piping or components for future demolition. Further, the extent of the termination of the steam and condensate mains will be further North beyond Stewart St. near Frenger St. The exact termination point will be confirmed once NMSU staff verifies what buildings or facilities still have steam demand.

IV. Estimated Implementation Costs Refer to the following cost summaries for specific information.

17-May-16 RE: DACC/NMDA Steam Disconnect Study OPINION OF PROBABLE COSTS Below is a summary Opinion of Probable cost for the above referenced project. New Individual Boiler System Set Up Cost Cost Demolition of Steam Equip & Piping $15,000.00 New Boiler System(s) $134,000.00 Sub-Total Cost for Individual Boiler Room $149,000.00 Sub-Total Cost for the 4 boiler systems (LRC, 341 south, 341 central, $596,000.00 nmda) Central Boiler Room Bldg (DAMA341 & LRC) Demolition of Steam Equip & Piping $30,000.00 Boilers, Pumps, Controls, Elect, Construction $281,000.00 Sub-Total Cost for Central Boiler Room $311,000.00 Sub-Total Cost for Individual 341 south Boiler Room $298,000.00 and NMDA Sub-Totals $609,000.00 $596,000.00 General Contractors Mark ups 20% 0.2 $121,800.00 $119,200.00 Sub-Total $730,800.00 $715,200.00 NMGRT 7.53% 0.0753 $55,029.24 $53,854.56 Grand Total Central Blr Rm (341 Central & LRC) $785,829.24 note 3 Grand Total (Individual Boiler Systems) $769,054.56 Cost with Contingency (10%) $864,412.16 $845,960.02 Steam Disconnects and Demolition Sub-Total Cost for St. Disconnect/Demo $90,500.00 General Contractors Mark ups 20% 0.2 $18,100.00 Sub-Total $108,600.00 NMGRT 7.53% 0.0753 $8,177.58 Grand Total Steam Disconnect/Demo $116,777.58 note 1 note 2 Project(s) Grand Total Costs $981,189.74 $962,737.60 Notes: Note 1 - add $20,000 to cost for ultra-high efficiency boilers Note 2 - add $30,000 to cost for ultra-high efficiency boilers. Note 3 - includes individual boiler rooms for NMDA and 341 south mechanical room.

17-May-16 RE: DACC/NMDA Steam Disconnect Study OPINION OF PROBABLE COSTS Below is a breakdown of the general construction, mechanical and electrical cost for the above referenced project. Please review and comment as necessary. All costs and calculations were comprised using the Means booklet or from venders or manufacturer's representatives. Boiler Room Demolition: Line Item Quantity Unit Unit Cost Total Steam Equipment 1 ls $7,500.00 $7,500.00 Piping 1 ls $2,500.00 $2,500.00 Electrical 1 ls $5,000.00 $5,000.00 Sub-Total $15,000.00 New Work (Individual Blr Rm) Line Item Quantity Unit Unit Cost Total Ultra Hi-eff Boiler Boilers, flues, piping 2 ea $ 45,000.00 $ 90,000.00 $110,000.00 Pumps & Specialties 2 ea $ 12,000.00 $ 24,000.00 Controls 1 ls $ 10,000.00 $ 10,000.00 Electrical 1 ls $ 10,000.00 $ 10,000.00 Sub-Total $ 134,000.00 $154,000.00 New Work (Central Blr Rm - DAMA 341 Central MR & LRC) Line Item Quantity Unit Unit Cost Total Boilers 3 ea $45,000.00 $ 135,000.00 $165,000.00 Pumps 3 ea $12,000.00 $ 36,000.00 Controls 1 ls $10,000.00 $10,000.00 Electrical 1 ls $25,000.00 $25,000.00 Mech Building Constr. 500 sq. ft. $150.00 $75,000.00 Sub-Total $ 281,000.00 $311,000.00 New Work (Steam & Cond Ret Distr Piping Demolition) Line Item Quantity Unit Unit Cost Total New End of Main Trap 1 ls $ 9,000.00 $ 9,000.00 Piping Demolition 3000 lf $ 20.00 $ 60,000.00 Street Repair 1 ls $ 1,500.00 $ 1,500.00 Landscaping 2000 lf $ 10.00 $ 20,000.00 Sub-Total $ 90,500.00

V. Plans and Schematics Plan sheets provided under a separate pdf file.

VI. Photos of Existing Systems:

DAMA 341 Basement Mechanical Room Photo - 1 Steam main and condensate return to basement mechanical room. Photo - 2 Steam and CR lines in mechanical room.

Photo - 3 Steam and CR in mechanical room. Photo - 4 Steam and CR lines in mechanical room.

Photo - 5 Steam and CR lines in mechanical room. Photo - 6 Steam and CR lines in mechanical room.

Photo - 7 Steam and CR lines in mechanical room. Photo - 8 Steam and CR lines in mechanical room.

Photo - 9 Steam and CR lines in mechanical room. Photo - 10 Steam regulator Station and heat exchanger stands.

Photo - 11 Steam PRV Station and Ht. Exch.'s Photo - 12 Condensate Return (CR) specialties.

Photo - 13 Heating water pumps and specialties. Photo - 14 Heating water installation, opposite end of photo 13

Photo - 15 heating Water Pump Photo - 16 Heating water pump, nameplate

Photo - 17 Heating Water Pump, nameplate Photo - 18 Heat Pump Chiller pumps

DAMA 341 AHU Mechanical Room (Typical of 2) Photo - 19 AHU-Q in room Photo - 20 AHU-Q

Photo - 21 Coil Piping to AHU

DAMA 341 South Mechanical Room Photo - 22 CR specialties and piping. Photo - 23 Steam regulator station and specialties

Photo - 24 Incoming steam main and CR main up through floor Photo - 25 Steam regulator station and piping

Photo - 26 Heat Exchangers, one serves 341 addition(s) and one serves Health Sciences building. Photo - 27 HE control valves

Photo - 28 HE stands and 341 heating pumps

Photo - 29 Health Sciences heating pump

Photo - 30 Overall of Steam stations and HE's Photo - 31 Chilled and heating distribution piping entering/leaving room

Photo - 32 Coil piping to AHU in south mechainical room. Photo - 33 Outdoor area adjacent to cooling tower

Photo - 34 Exterior steam/utility vault at corner of Espina and Wells Photo - 35 Existing steam leak on east side of 341 along Espina St.

LRC Mechanical Room Photo - 36 Condensate receiver and pump station, steam regulator station above Photo - 37 Incoming main steam line up through floor

Photo - 38 CR main down through floor Photo - 39 Heat Exchanger

Photo - 40 Overall photo of steam specialties and heating water pumps Photo - 41 Heating pump nameplate

LRC Classroom Building Mechanical Room Photo - 42 AHU in Classroom building Photo - 43 AHU piping to LRC building

Photo - 44 AHU piping leaving mechanical room to LRC building

Outdoor Yard Areas Photo - 45 Outdoor area adjacent to 341 basement mechanical room. Exterior condensing units for heat pump chillers. Photo - 46 Exterior area just north of condensing unit and electrical yard.

Photo - 47 Exterior area north of condenser and electrical yard Photo - 48 LRC exterior area, door to right of column is mechanical room door.

VII. Proposed Equipment Information

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503A thru 2003A 504A thru 2004A MVB Cat. I* Models MVB Cat. IV B Ht. D E F G NPT Dimensions (inches) H K-Ø Cat. I* K-Ø Cat. IV M Cat I* M Cat IV N CA Ø P R V Operating Weight (lbs.) Amps PHYSICAL DATA 504A 503A 43 32 35 23-3/4 1 2 NPT 8 6 14-1/8 14-1/2 6 35 6 2 600 12 754A 753A 49 38 41 29-3/4 1 2 NPT 10 6 16 14-1/2 6 41 6 2 660 12 1104A 1003A 55 44 47 35-3/4 1-1/4 2-1/2 NPT 10 6 16 14-1/2 6 48-1/2 6 2 720 12 1504A 1253A 61 50 53 41-3/4 1-1/4 2-1/2 NPT 12 8 18-1/8 17-3/4 8 53 6 2 780 12-1503A 67 56 59 47-3/4 1-1/4 2-1/2 NPT - 8-17-3/4 8 59 6 2 840 12 2004A 1753A 75 62 65 53-3/4 2 2-1/2 NPT 14 8 20-1/8 17-3/4 8 68 9 5 940 18-2003A 81 68 71 59-3/4 2 2-1/2 NPT - 8-17-3/4 8 74 9 5 1000 18-2503 68-1/4 62 64-7/8 7-5/16 2-1/2 4 groove - 10-26-3/4 10 N/A N/A 4-13/16 1150 12-3003 73-1/4 67 69-7/8 7-5/16 2-1/2 4 groove - 10-29-1/4 10 N/A N/A 4-13/16 1250 15-3503 78-1/4 71 74-7/8 7-5/16 2-1/2 4 groove - 12-31-3/4 12 N/A N/A 4-13/16 1375 17-4003 83-1/4 76 79-7/8 7-5/16 2-1/2 4 groove - 12-34-1/4 12 N/A N/A 4-13/16 1450 20 *Category I with vertical vent, category III with horizontal venting and no extractor. NPT shown is for Natural Gas. For Propane, NPT= 1 for 503/4 thru 2003/4 and 2-1/2 for 2503 thru 4003 all water heater/boiler sizes. Current draw is for heater only. (Supply breaker must have a delayed trip.) Models Dimensions (inches) PHYSICAL DATA MVB Cat. I* MVB Cat. IV W* X* - 2503 58.22 67.12-3003 63.22 72.12-3503 68.22 77.12-4003 73.22 82.12 *Only one port is to be used. All three ports are shown for pictorial purposes. 4

2503 thru 4003 RATING PLATE All components are contained inside the cabinet (except PRV), no external fans or valves to deal with. CLEARANCES PUMP Heater Side From Combustible Surfaces (min.) For Service 503/4A thru 2003/4A For Service 2503 thru 4003 Floor* 0 0 0 Rear 12 24 36 Right Side 1 1 24 ** Left Side 1 1 24 ** Top Indoor Outdoor 0 Unobstructed 10 Unobstructed 12 Unobstructed Front Open 24 30 Vent Stack Indoor 1 1 1 Vent Cap Outdoor 12 12 12 *Do not install on carpeting ** One side 24 other 1 clearance. Note: Local codes may require increased clearances MVB Model Water Hardness Soft Medium Hard HP Amps HP Amps HP Amps 503A/504A 1/4 6 1/4 6 3/4 11 753A/754A 1/4 6 1/2 7 3/4 11 1003A/1104A 1/4 6 1/2 7 1 14 1253A 1/2 7 1 14 1 14 1503A/1504A 3/4 11 1 14 1 14 1753A 1 14 1-1/2 15 1-1/2 15 2003A/2004A 1-1/2 15 1-1/2 15 1-1/2 15 2503 1-1/2 8.2 1-1/2 8.2 3 16 3003 1-1/2 8.2 3 16 3 16 3503 1-1/2 8.2 3 16 3 16 4003 3 16 5 23 5 23 Note: Current draw (Amps) is for pump only Water hardness grains per gallon *Pump selections based on 75ft equivalent length of tubing Soft = 3-4 Medium = 5-15 Hard = 16-25 ** At 230 VAC 5

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Xtreme Small Footprint TOP VIEW FRONT VIEW REAR VIEW Models 1005A thru 2005A 1005A thru 2005A Heating Boiler PHYSICAL DATA Model B Ht. D E F G * NPT Dimensions (inches) K Flue Ø L M N C/A Ø P R Y H-Models Hydronic Weight (lbs.) Boiler Amps Pump Amps 1005A 55-1/8 45 47-1/8 36-1/2 1-1/4 6 40-1/16 11-1/2 6 47-1/8 8-1/16 6-1/16 1065 12 10 1505A 67-1/8 57 59-1/16 38-1/2 1-1/4 8 52-1/16 12-5/8 8 59-1/8 8-3/16 6-1/16 1234 12 14 2005A 81-1/8 71 71-3/16 38-1/2 2 8 64-1/16 12-5/8 8 73-1/8 8-3/16 6-1/4 1461 18 17 2505 68-3/16 65 64-13/16 7-5/16 2-1/2 10 21-1/8 18-1/2 10 70 - - 2656 12** 15** 3005 73-3/16 70 69-13/16 7-5/16 2-1/2 10 26-1/8 23-1/2 10 65 - - 2775 15** 16** 3505 78-3/16 75 74-13/16 7-5/16 2-1/2 10 31-1/8 28-1/2 12 60 - - 2925 17** 16** 4005 83-3/16 80 79-13/16 7-5/16 2-1/2 10 30-7/8 29-1/4 12 55 - - 3058 20** 24** *For propane gas, all models are 1-1/4 NPT. Separate wiring connection required for pumps. **At 240VAC. MBTUH Model MBTUH Input Output AHRI Certified Boiler Efficiency MBTUH Input Not AHRI Certified Water Heaters Output Efficiency Minimum Input 1005A 999 959 96% 999 969 97% 140 1505A 1500 1440 96% 1500 1455 97% 210 2005A 1999 1919 96% 1999 1939 97% 280 2505 2501 2378 95.1% 2501 2381 95.2% 200 3005 3000 2853 95.1% 3000 2856 95.2% 240 3505 3500 3329 95.1% 3500 3332 95.2% 280 4005 4000 3804 95.1% 4000 3800 95.2% 560 4 CLEARANCES Heater Side From Combustible Surfaces (min.) For Service (recommended) Floor* 0 N/A Rear 12 36 Right Side 1 24 Left Side 1 1 Front 24 24 Top Indoor 0 10 Outdoor Unobstructed Unobstructed Vent Stack Indoor 1 N/A Vent Cap Outdoor 12 12 *Do not install on carpeting Note: Local codes may require increased clearances XTherm Model Soft Heater Pumps Water Heater Power Requirements Medium Heater Pumps Hard Heater Pumps 1005A 12 10 12 10 12 14-1505A 12 10 12 14 12 17-2005A 18 17 18 17 N/A N/A - 2505** 12 8 12 8 12 8 7 3005** 15 8 15 16 15 16 8 3505** 17 8 17 16 17 16 8 4005** 20 16 20 16 20 16 8 Water hardness grains per gallon Soft = 3-4 Medium = 5-15 Hard = 16-25 **At 240VAC. External Injector Pump

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Standard Features > 94% Thermal Efficiency > Modulating Burner with 5:1 Turndown Direct-Spark Ignition Low NOx Operation Sealed Combustion Low Gas Pressure Operation > ASME Stainless Steel Heat Exchanger ASME Certified, H Stamped Gasketless Heat Exchanger 160 psi Working Pressure 50 psi ASME Relief Valve Highly efficient, condensing design > Vertical & Horizontal Direct-Vent Category IV venting up to 100 feet PVC, CPVC, Polypropylene or AL29-4C Venting up to 100 Feet Factory Supplied Sidewall Vent Termination > Smart System Control > Other Features On/Off Switch Adjustable High Limit w/ Manual Reset Automatic Reset High Limit Flow Switch Flue Temperature Sensor Low Air Pressure Switch Temperature & Pressure Gauge Adjustable Leveling Legs Condensate Trap Zero Clearances to Combustible Material 10 Year Limited Warranty (See Warranty) Firing Codes M9 M7 M13 Standard Construction California Code CSD1 / FM / GE Gap (KB501-KB801) Dimensions and Specifications A B C D E F G H I J K Gas Water Air Vent Shipping Conn. Conn. Inlet Size Wt. (lbs.) 42-1/2 15-1/2 27-3/4 3-3/4 20-3/4 21 14 34 34 2 18-3/4 1 1-1/2 4 4 280 42-1/2 15-1/2 31-1/2 3-3/4 25-1/2 21 14 32-1/2 36 2 18 1 1-1/2 4 4 310 42-1/2 15-1/2 36-1/4 3-3/4 25 21 14 36 32-3/4 5-1/2 19-1/2 1 2 4 4 340 42-1/2 15-1/2 40-1/4 3-3/4 29 23 17 36 32-3/4 3-1/4 23-1/2 1 2 4 6 370 42-1/2 15-1/2 45-1/4 3-3/4 33-1/4 23 17 36 32-3/4 3-1/4 27-3/4 1 2 4 6 405 Smart System Features > SMART SYSTEM Digital Operating Control Multi-Color Graphic LCD Display w/ Navigation Dial > Three Reset Temperature Inputs with curves for three set point temperature inputs > Built in Cascading Sequencer for up to 8 Boilers Multiple Size Boiler Cascade Front end loading capability with Copper Fin II Lead Lag Efficiency Optimization > Outdoor Reset Control with Outdoor Air Sensor > Programmable System Efficiency Optimizers Night Setback DHW Night Setback Anti-Cycling Outdoor Air Reset Curve Ramp Delay Boost Temperature & Time > Three Pump Control System Pump With Parameter for Continuous Operation Boiler Pump With Variable Speed Pump Control* Domestic Hot Water Pump > Domestic Hot Water Prioritization DHW tank piped with priority in the boiler loop DHW tank piped as a zone in the system with the pumps controlled by the Smart System DHW Modulation Limiting Separately Adjustable SH/DHW Switching Times* > Building Management System Integration 0-10 VDC Input to Control Modulation or Set Point 0-10 VDC Input Signal from Variable Speed System Pump* 0-10 VDC Modulation Rate Output 0-10 VDC Input to Enable/Disable call for heat Access to BMS Settings through Display Optional Equipment Alarm Bell Condensate Neutralization Kit Concentric Vent Kit (KB400-KB601) BMS Gateway to LON or BacNet High & Low Gas Pressure Switches w/ Manual Reset (KB501-KB801) Variable Speed Boiler Circulation Pump > High Voltage Terminal Strip 120 VAC / 60 Hertz / 1 Phase Power Supply Three sets of Pump Contacts with Pump Relays > Low Voltage Terminal Strip 24 VAC Device Relay Proving Switch Contacts Flow Switch Contacts Alarm on Any Failure Contacts Runtime Contacts DHW Thermostat Contacts 3 Space Heat Thermostat Contacts System Sensor Contacts DHW Tank Sensor Contacts Outdoor Air Sensor Contacts Cascade Contacts 0-10 VDC BMS External Control Contact 0-10 VDC Boiler Rate Output Contacts 0-10 VDC Variable Speed System Pump Signal Input 0-10 VDC Signal to Control Variable Speed Boiler Pump Modbus Contacts > Time Clock > Data Logging Hours Running, Space Heating Hours Running, Domestic Hot Water Ignition Attempts Last 10 Lockouts > Other Features Low Water Flow Safety Control & Indication Password Security Inlet & Outlet Temperature Readout Customizable Freeze Protection Parameters Custom Maintenance Reminder with Contractor Info *Exclusive feature, available only from Lochinvar MODBUS Communication Multi Temperature Loop Control Low Water Cutoff w/manual Reset & Test Constant Speed Boiler Circulation Pump SMART SYSTEM PC Software Stainless Steel Vent Kits (KB701-KB801) Stack Frame Lochinvar, LLC 300 Maddox Simpson Parkway Lebanon, Tennessee 37090 P: 615.889.8900 / F: 615.547.1000 Lochinvar.com Registered Under U.S. Patents #7824178 and 7506617 KBX-06 (Reprint KBX-06 1/15) PDP-5M-8/15-Printed in U.S.A.