FACILITIES MANAGEMENT

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1 FACILITIES MANAGEMENT Planning, Design & Construction February 1, 2013 Re: Request for Qualifications for Commissioning Services Art Building Replacement Construct New Facility (# ) University of Iowa The University of Iowa, located in Iowa City, Iowa, intends to retain the services of a qualified consulting Firm to provide Commissioning Services for the Art Building Replacement Construct New Facility project. Interested and qualified firms are invited to submit a written Statement of Qualifications to provide commissioning services for this project. This is a qualifications based selection process. Fee proposals are not desired at this time. General The University intends to construct a new Art Building Facility of approximately 126,000 gross square feet. In June 2008, record floods damaged major portions of the University of Iowa campus. One of the heavily damaged buildings was the Art Building East complex located at 120 North Riverside Drive. After considering repair and replacement options the decision was made to replace the building. The site for the Art Building Replacement Facility will be located at a higher elevation at 109 River Street. The building currently located at 109 River Street will be demolished under a separate project.. The facility includes teaching studios, graduate studios, faculty offices, a sixty seven seat classroom, galleries and studio support rooms. The project is a 3.0 NC LEED project with a goal of attaining at least a silver certified level of design. The commissioning process shall comply with the US Green Building Council s LEED-NC program for both Fundamental Commissioning and Enhanced Commissioning. To date the University s Energy Management group has acted as the project s commissioning agent but because of work load cannot continue with this effort. The project documents are currently 95% complete. Scope of Work The primary role of the successful Firm is to develop and coordinate the execution of a quality assurance plan, observe and document performance, and determine whether systems are functioning in accordance with the design intent and in accordance with the contract documents. Additionally, the successful Firm will assist with problem-solving or resolving non-conformance or deficiencies, though those responsibilities reside with the General Contractor and Design Consultants. 200 University Services Building Iowa City, IA Fax

2 Page 2 The services provided should include, but not be limited to: Commissioning of the mechanical and electrical systems to verify that all systems reflect the University of Iowa Design Standards and Procedures and the Owners Project Requirements; and that systems are complete and functioning properly upon occupancy. Prepare Preliminary Commissioning Plan Review the attached Owner s Project Requirements and the 95% complete design documents found at _1-t_x4Y7QzBu Back check the review comments from the Design Development and 75% review design submission. A minimum of one commissioning meeting will be required prior to issuing documents for bidding. The commissioning agent shall document and distribute meeting minutes for this meeting. Develop and incorporate commissioning specifications and requirements into the construction documents. Review Construction Documents Develop and implement a commissioning plan. Maintain commissioning logs and corrective action reports. The proposal shall include six commissioning coordination meetings (one of these would be the commissioning kick-off meeting with the contractors) during the construction phase of the project. The commissioning agent shall document and distribute meeting minutes for these meetings. These meetings are in addition to the regularly scheduled site observations and functional testing meetings that would be needed for the systems being commissioned. Review contractor submittals applicable to systems being commissioned for compliance with the Owner s Project Requirements and the Basis of Design. The University will use Submittal Exchange to track Shop Drawing review. Verify the installation and performance of the systems being commissioned. Develop a systems manual for future operating staff with the information needed to understand and optimally operate the commissioned systems. The complete systems manual shall be similar to the ASHRAE Guideline 4. Complete a summary commissioning report. Provide assistance in developing and executing effective training for the Owner s staff. Verify that the requirements for training of operations personnel and building occupants have been completed. Return to the site at 10 months into the 12 month warranty period and review with facility staff the current building operation and the condition of outstanding issues related to the original and seasonal commissioning. Also interview facility staff and identify problems or concerns they have with operating the buildings as originally intended Ensuring University facility staff has adequate system documentation and training. Preparation and submittal of all documentation as required for LEED-NC Fundamental and Enhanced Commissioning.

3 Page 3 One commissioning activity could involve integration of multiple systems. The following systems will be included, but not limited to: HVAC piping and duct systems HVAC system pumps Activated slab heating and cooling systems Heat Recovery Chillers Chilled water metering system Domestic hot water heat exchanger and system Air handling units including energy recovery devices Exhaust fans and associated ductwork Air terminal units DDC control system Fan coil unit Radiant Floor Smoke Control system Water treatment system Lighting control systems Electrical Power Metering system Emergency power generator and distribution system Automatic transfer switch Lighting and lighting control system Security system Daylight control system Note: HVAC/mechanical systems shall include air handling units, distribution, ductwork, filters, piping, valving, insulation, pumps, compressors, controls, heat exchangers, PRV s, tanks, etc. Commissioning consultant shall work with the testing and balancing agent. Systems specifically not included are the following: Telecommunication systems Commissioning will be provided by the Owner. Fire Pump and Fire Suppression System Commissioning will be provided by the Owner. Fire Detection and Alarm System Commissioning will be provided by the Owner. Access Control Commissioning will be provided by the Owner. Building Envelop will be commissioned by the Owner s consultant. Schedule The project anticipates the following schedule: 95% Review Meetings February 28 & March 1 Print Bid documents April 1, 2013 Bid Opening May 14, 2013 Begin on site Construction June, 2013 Substantial Completion April, 2016

4 Page 4 Statement of Qualifications Each Firm is expected to submit a fully detailed response, which adequately describes the advantages and benefits the University would realize by selecting the Firm. The required documentation of expertise and qualifications outlined in this request are intended to primarily serve as a general guide for each statement of qualifications, with the minimum requirements listed. Through this Request for Qualification process, a single Firm will be selected to provide commissioning services for this project. The University may at its option, require oral presentations if deemed necessary, whichever is in the University s best interest. Firms will be selected to interview on the basis of materials submitted for review by the University of Iowa, along with an expression of interest in providing services for the project with the time limitations defined. A demonstrated ability to handle a project similar to that described above will be important to the selection process. The submission should include, as a minimum: Cover letter including firm contact information. A list of the firm s proposed project team members (including sub consultant team members), their roles, resumes, and qualifications related to this project. A list of similar projects successfully completed by the firm with related client references and cost summaries (both initial estimates and actual costs related to these projects). Understanding of project issues and challenges. A detailed description of the firm s quality control procedures. This should address quality in documentation as well as in the design process. Brief description of the firm s understanding of the assignment, a description of how the firm will approach the assignment and a preliminary detailed work plan Include a discussion on total versus statistical testing for equipment/systems; include which systems would warrant a statistical approach and which should be tested 100%. For example, central station equipment should all be tested, whereas VAV/terminal devices should have a statistical sampling approach. Has the firm ever entered into litigation/arbitration with an Owner within the past five years? If so, explain. Limit Statement of Qualifications to 12 pages (6 double-sided sheets) plus team member resumes and cover letter. Firms interested in providing services for this project should submit, by , all the requested material in a single *.pdf file format, to both: Beverly Robalino Senior Design Project Manager University of Iowa FM - Planning, Design & Construction 200 University Services Building Iowa City, Iowa Beverly-Robalino@uiowa.edu

5 Page 5 Eric Evenson Project Assistant University of Iowa FM - Planning, Design & Construction 200 University Services Building Iowa City, Iowa Eric-A-Evenson@uiowa.edu The materials must arrive no later than 12:00 pm (Noon) on February 13, 2013 to be considered. Firms from which additional information is requested will be contacted. All firms expressing an interest in the project will be notified of the recommendations of the University s selection as those decisions are reached. All questions shall be directed to: Beverly Robalino Senior Design Project Manager Ph: Beverly-Robalino@uiowa.edu

6 University of Iowa Art Building Replacement - Construct New Facility DESIGN INTENT June 20, 2012 Owner s Project Requirements GENERAL BUILDING DESIGN AND FUNCTION 1. OWNER AND USER PROJECT REQUIREMENTS 1.1 General building design and function The new Art Building is a replacement of the original facility along the Iowa River on the campus of the University of Iowa that was lost in the flood of June The building has four full floor levels and a partial fifth level, and is approximately 129,000 GSF. The building will be located adjacent to Art Building West as the two building share many programs, students, and staff. The new building houses digital and industrial arts programs and includes photography, ceramics, metals, woods, printmaking, drawing, sculpture, intermedia, and 3-D design. A 76-seat classroom will also be included in the facility. The design is intended to allow natural light to penetrate as far into the building as possible, which is essential for these programs and the understanding of the true colors of the art. The exterior skin will be a metal panel rain-screen system. Interior finishes will include concrete ceilings & floors, and gypsum board & concrete walls. 1.2 Restrictions and limitations of systems or facility This project has some site restrictions, limiting the building footprint and mandating the building be built five stories tall. The northwest and northeast sides are restricted by the property lines, the southwest side is restricted by a ravine, and the southeast side is restricted by the 500 year flood plain plus two feet. FEMA requires that every floor level of this building be built at or above a 657 feet elevation. 657 feet is the 500 year flood plain plus two feet. 1.3 Budget considerations and limitations Project Construction Budget: 56.7 million dollars. 1.4 Schedule considerations Design Completion: March 2013 FEMA Review Complete: April 2013 Bid Date: May 2013 Construction Completion: May,

7 1.5 Success criteria The success of this project will be in creating a building that becomes an optimal environment for the creation and study of art. The building should house vibrant spaces that encourage interaction between occupants and a beautiful and elegant interior. It should also utilize energy efficient mechanical and electrical systems that meet the energy goals of the University. 1.6 Team information PROJECT MANAGER Beverly Robalino University of Iowa 230 USB, University of Iowa, Iowa City, Iowa p COMMISSIONING AUTHORITY Dan Oppelt University of Iowa 230 USB, University of Iowa, Iowa City, Iowa ARCHITECT Tom Hilton BNIM Architect th Avenue Suite 100, Des Moines, Iowa p HVAC MECHANICAL ENGINEER Amy Infelt Design Engineers 8801 Prairie View Lane SW, Cedar Rapids, IA (319) ELECTRICAL DESIGNER Eric Bruxvoordt Design Engineers 8801 Prairie View Lane SW, Cedar Rapids, IA (319) CIVIL DESIGNER Tracy Longo Shive-Hattery 2834 Northgate Drive, Iowa City, IA (319) Beverly.robalino@uiowa.edu daniel-oppelt@uiowa.edu thilton@bnim.com amyi@de-pc.com ericb@de-pc.com tlongo@shive-hattery.com 2

8 LANDSCAPE DESIGNER Jim Scheussler BNIM Architects 106 W 14 th Street, Suite 200, Kansas City, MO (816) STRUCTURAL DESIGNER Kelly Gipple Structural Engineering Associates 101 W. 11th Street, Suite 200, Kansas City, MO (816) jscheussler@bnim.com kgipple@seassociates.com 2. SUSTAINABLE CONSTRUCTION AND ENVIRONMENTAL GOALS The Art Building Replacement Construct New Facility project will be designed towards LEED silver level certification. It will utilize a well-insulated enclosure, energy efficient mechanical and electrical systems, and green building products and practices. 3. ENERGY EFFICIENCY GOALS AND PERFORMANCE CRITERIA The University mandates an energy performance that is 30% better than ASHRAE Standard The building envelop will be insulated with a minimum R-20 walls and a minimum R-30 Roof to help the performance of the building. The windows will use Low-E insulated glazing. Channel glass walls will be insulated. The mechanical and electrical system, in conjunction with the well-insulated envelope, will meet or exceed the energy performance requirements from the University. 4. INDOOR ENVIRONMENTAL QUALITY REQUIREMENTS Outside ventilation air will be provided in the form of replacement air for process, restroom and custodial room exhaust and as required for occupant ventilation by the 2009 International Mechanical Code and ASHRAE Ventilation airflow will be controlled using a demand based monitoring via a combination of CO2 and space occupancy sensors. The building occupants will only be able to adjust space temperature via thermostats (+/- 2 degrees from master setpoint) and to override occupancy sensors and unoccupied control sequences. Each space will be lit using high efficiency light fixtures utilizing T5HO, T5 and LED lamping. Each occupied space will have an occupancy sensor with local override switch or dimmers to control the lights. Corridor lights will be controlled with a combination of occupancy sensors and time of day basis via the lighting control software. Electrical and mechanical room lights will be controlled with a toggle switch only. Exterior lights will be controlled by a combination of photocell control and time of day basis also via the lighting control software. 4.1 EQUIPMENT AND SYSTEM EXPECTATIONS 3

9 HVAC DESIGN INTENT Maintain all net occupiable spaces of the building with active slab heating and cooling systems to within the range of 78 F ± 2 F, 50% RH ± 5% summer and 68 F ± 2 F, 30% RH ± 5% winter. All occupiable spaces of the building that are not provided with slab heating and cooling shall be maintained within the range of 75 F ± 2 F, 50% RH ± 5% summer and 70 F ± 2 F, 30% RH ± 5% winter. All other areas of the building may be maintained outside of this range. System Description The heating, ventilating and air conditioning strategy implements a combination of three systems: An activated slab heating and cooling system consisting of plastic piping poured into the underside of the slab. A combination of supplemental heating and cooling systems including radiant perimeter heat installed in the top of the slab, variable air volume terminal units with reheat coils and four pipe fan coil units. Exhaust and outdoor air systems to provide exhaust as required per code and by equipment and processes and outdoor air as required for replacement air for exhaust systems, ventilation air for compliance with ASHRAE 62.1 indoor air quality standard and pressurization air to maintain the building positive relative to outside Activated Slab Heating and Cooling System: The activated slab heating and cooling system is essentially a passive system with minimal active control. There is no insulation installed in the concrete so that the thermal mass of the concrete is part of the system. It is a slow reacting system, taking up to 5 to 6 hours for a change in water system temperature to a result in a change in space temperature. A concept key to the installation of an activated slab heating and cooling system is that of Operative Temperature, which is defined as the combined influence of the air temperature and the mean radiant temperature. The mean radiant temperature is further defined to be the weighted average of the surface temperature of the activated slab and the temperature of the other surfaces in the room. The effect of the radiant temperature component is that the building can operate successfully at a space cooling set point of 78 degrees and achieve an operative temperature of 75 degrees. Similarly, during heating, a space heating set point of 68 degrees will achieve an operative temperature of 70 degrees. The slab heating and cooling system will be zoned based on exposure. The interior rooms will be on one zone, while the perimeter rooms will be zoned by exposure. The supply temperature to these five different water temperature control zones that will be indexed to either cooling or heating based on the majority call for the rooms served in each zone. Each water temperature zone will supply a series of manifolds that will in turn supply slab water to up to 12 individual rooms. The maximum square footage for each zone or room is 200 sf so that there may be multiple zones in some rooms. The water flow to each room will be controlled by a two position valve so that when the zone is supplied with cooling water and the room is calling for heating or when the zone is supplied with heating water and the room is calling for cooling, the valve to that room shall close. The water flow to each room will be further controlled to vary the capacity of the slab by cycling the two position valve to each zone in response to space temperature. Slab temperature sensors will be installed at the location of the supply piping off of each manifold. In addition, the dew point in critical spaces will be monitored. The temperature of the chilled water supply to the slab cooling system shall be reset upward as required to maintain the lowest recorded slab temperature a minimum of four degrees above the highest recorded space dew point. It is anticipated 4

10 that the piping manifolds for each slab zone will be supplied from manifold cabinets installed recessed in interior walls. It is not anticipated that redundant piping systems will be installed within the slab for use in the event of piping failure. Instead, the concrete around the point of failure can be removed to allow repair of the piping. There is some level of active temperature control for the activated slab system inherent in the system. It is a self-regulating system in that as the room temperature goes up, the temperature difference between the room air and the temperature of the slab decreases and so the heat output goes down. As temperature differential increases, heat output goes up. If room gets to temperature of slab, or approximately 82 degrees F, the slab does not add any heat to the room. For cooling, the slab temperature is at approximately 66 degrees F so as room gets warmer there is more cooling output to room and as room gets cooler less cooling output. The anticipated sequence of operation for control of the individual space temperature for rooms with a vav terminal unit and slab cooling will be for the space temperature control to be staged. The first stage will be to modulate outdoor air to the space based on makeup air or ventilation requirements and modulate the reheat coil control valve to maintain space temperature. If available outdoor airflow cannot maintain cooling set point (75), the slab cooling system will be staged on and cooling set point will be reset up two degrees (77). The reheat coil control valve will remain closed and the slab cooling system will cycle until space temperature drops below 75. At that point, slab system will cycle off and set point will be reset down two degrees (75). At a space temperature more than two degrees below set point, reheat control will modulate open to maintain space temperature. If the cooling capacity of the outdoor air is less than the space load but reduces the cooling load, the slab system will remain on but the flow to the slab will be cycled based on space temperature and the space temperature setpoint by users will be reset based on status of slab system; in cooling, when the slab is on, the space set point will be increased by two degrees; in heating, when the slab is on, the space set point will be decreased by two degrees. It should be noted that it will be important to make sure that exterior rooms with significant interior cooling loads have enough ventilation air cooling capacity to offset the interior cooling load for the room without the slab cooling system capacity, since there may be times during the winter when the exterior slab system is in heating mode yet the space still requires cooling. For rooms where the OA capacity is more than the peak space load and the load is directly tied to the occupancy of the room (ie. people and lighting load); consideration will be given to deleting the slab system from this room to minimize the potential need for reheat due to cooling capacity being provided from the slab system in addition to the outdoor air. As a minimum, the control system will be programmed to shut off flow to the slab cooling system in this scenario. In general, the peak cooling capacity of the slab system will be matched to the peak space cooling load by varying the flow rate through the loop for that room. Supplemental Heating and Cooling Systems: A radiant floor heating system will be installed to provide perimeter heat. It is anticipated that this system will be installed for a width of 3 feet at all perimeter walls, with piping installed in the topping slab. In addition, a combination of variable volume reheat terminal units and four pipe fan coil units will be installed to provide supplemental cooling and heating in each space. A space temperature sensor will be installed to control these supplemental heating and cooling systems. Hydronic Systems 5

11 There will be two separate chilled water supply distribution systems one system will provide chilled water to the air handling unit and the fan coil units at 44 degrees F and the other system will provide chilled water to the slab cooling system at 56 degrees F, 8 degree delta T. There will also be two separate hot water heating supply loops the first system will supply hot water to the air handling unit and perimeter radiant floor heating system at 120 degree F and the second system will supply hot water to the slab heating system at 95 degrees F, 10 delta T. For both systems, it is anticipated that a two way valves will be provided to mix slab return water, primary return water and primary supply water to supply the lower temperature water hot water and higher temperature chilled water required for the slab system. Cooling/Heating Source Three premium efficiency rotary screw chiller-heaters will be installed to produce hot and chilled water in a parallel piping arrangement with the campus chilled water system being used as the heat source. The chillers are sized and operate to provide the heating water load. On the evaporator side, chilled water will be drawn from the return main of the campus loop at approximately 50 F and passed through the evaporator to remove heat, with the flow rate controlled to produce chilled water at 42 F that can be pumped into the campus supply main and/or pumped to any coils within the building that are calling for cooling. During cooling mode, the chillers will operate only as required to produce hot water for reheat, with chilled water being produced on the evaporator side. Chilled water requirements beyond what the chiller-heaters produce will be supplied from the campus supply main. All building utilities will enter the level 1 mechanical room on the north side of the building. Access to the mechanical room will be via a lift off slab in the accessible from the drive on the north side of the building. To provide either back up or an alternative heating system for the building, a steam to hot water convertor/heat exchanger will provide hot water for distribution throughout the building. Outdoor Air and Exhaust Systems A combination of one primarily outdoor air handling unit and exhaust fans will provide supply air and exhaust as required per code and by equipment and processes, as well as replacement air for exhaust systems, ventilation air required for compliance with ASHRAE 62.1 indoor air quality standard and pressurization air to maintain the building positive relative to outside. The unit will be provided with both an energy wheel and a heat pipe to recover energy from the building exhaust air stream to the outdoor air intake. A small quantity of air will also be returned to the unit to allow the unit to provide supplemental cooling for additional rooms without the need to increase the amount of outdoor air supplied to the building. For the large classroom, displacement ventilation will be utilized to minimize the quantity of outdoor airflow required while maximizing its effectiveness. In addition to a small amount of return air, exhaust air will be returned to the air handling unit via a combination of two separate variable volume central exhaust systems. In addition, a series of dedicated exhaust fans will exhaust air directly from the building. Restrooms and custodial rooms will be provided with constant volume exhaust during occupied operation. There will be two different types of art studios within this building. The teaching studios and shared spaces for ceramics, metals, sculpture and printmaking will house a wide variety of industrial equipment that will require that air be exhausted from these studios. There will also be limited exhaust required for some of the Painting and Drawing studios. Variable volume outdoor air and exhaust systems will 6

12 be provided to measure and control the amount of both exhaust and outdoor air to what is actually required and thus, minimize the energy required to condition the outdoor air. At least some of these art studios will require 100% exhaust to ensure the removal of any excess dust, vapors, smoke, etc. generated within the rooms but that don t require any minimum amount of continuous exhaust airflow will be provided with variable volume exhaust. For those rooms with that require local exhaust in the form of exhaust hoods or bench top exhaust, it is anticipated that some type of occupancy control will be provided to the minimize the volume of exhaust to only the amount that is required. The specific type of occupancy control to be provided for each exhaust application will be considered on a case by case basis. For the art studios, the exhaust airflow will be controlled to exceed the supply airflow to maintain these rooms at a negative pressure to the adjacent corridor. To accomplish this, the volume of exhaust airflow will be controlled to provide the worst case of the exhaust required at the exhaust hood or to maintain the required space temperature. The cooling airflow will then track the volume of exhaust airflow as required to maintain these work rooms slightly negative to the adjacent corridor. This control sequence will minimize the amount of outdoor air to be as required for the worst case providing make up air or cooling of these spaces. The air handling unit will consist of filter sections, two different heat recovery devices, exhaust fans and supply fans, both with variable frequency drives, a heating coil and a cooling coil. A desiccant wheel will be to allow the complete transfer of energy from the exhaust air from those spaces with little to no generation of odor and a lower potential for the transfer of dust and contaminants to the outdoor air for each of the new air handling units. A sensible heat pipe device will be provided to allow for recovery of sensible energy only from the exhaust from those spaces with significant contaminants or odor. It is anticipated that the heating coil will be sized to provide the full heating capacity required when the energy recovery wheel is not in operation. The chilled water coils in the air handling units, however, will be sized to only provide the additional cooling capacity required beyond the cooling capacity of the energy recovery devices. This air handling unit will supply primarily outdoor air to a system of supply variable air volume terminal units and return exhaust air from a system of exhaust variable air volume terminal units. The peak outdoor air capacity of the new air handling unit is as required to provide: Ventilation Outdoor Air For those spaces where the outdoor airflow is driven by ventilation air requirements, per the most recent ASHRAE 62.1 ventilation air calculations, the peak outdoor airflow required for ventilation is estimated at 21,000 cfm. Per occupancy schedule provided by School of Art, the maximum number of people in the building at any one time is divided by total occupancy of 1455 included in load summary provides a diversity of 42% for ventilation air. Ventilation airflow cfm x 0.42 = 8,820 cfm of outdoor air for ventilation Replacement Air for Exhaust Airflow - For all exhaust, assume a 100% usage factor. Energy Wheel 18,795 cfm, Sensible Only 25,360 cfm Exhaust with no energy recovery 28,380 cfm Per discussions with the space users, it is understood that there will be extended periods of time, especially near the end of semesters, where there may be little to no diversity that can be applied to the replacement air for the exhaust. It was also discussed that the system will be design now for the full exhaust capacity currently required with the understanding that as additional equipment is added, the operation of the system will require some diversity in the usage of the equipment. 7

13 Finally, there will be five electric kilns and seven natural gas fired kilns that will be located within the ceramics kiln room on Level 2. The flues for the electric kilns will provided with fans and routed horizontally through the exterior wall. The flues for the natural gas fired kilns will be factory built chimney positive pressure piping, varying from 14 diameter up to 24 diameter. These flues will also route out through the exterior wall at a 45 degree maximum angle and extended vertically up the exterior of the building. Ventilated thimbles will be provided where the flues pass through the exterior wall. See attached spread sheet for a summary of the types and approximate quantity of exhaust anticipated within the new facility, including a listing of dedicated exhaust fans and dust collectors that will also be provided. Careful consideration will be required relative to the control of the airflow balance with in building. Outdoor airflow to the building will need to be the greater of the sum of the replacement air required for exhaust (sometimes called make up air, or MUA) plus pressurization air (PA) or the ventilation air (VA)required. Depending on equipment usage and status of associated exhaust, at times MUA + PA will exceed ventilation airflow and at other times ventilation airflow may drive OA requirement. A combination of occupancy sensors and CO2 demand monitoring will be utilized to provide ventilation air only when required by the occupancy. Where possible, the airflow distribution will be arranged to allow ventilation air supplied to the spaces without exhaust to transfer to provide replacement air for those rooms that require exhaust. This transfer air strategy will allow outdoor required for ventilation to be used to minimize the amount of outdoor air required for replacement air. A hydronic snow melt system will be provided at main entrance to building and at loading dock. The snow melt system will include a plate and frame heat exchanger and circulating pump to circulate a 50% water/propylene glycol system through PEX tubing that will be embedded in the loading dock concrete slab. Automatic Direct Digital Controls New direct digital controls will be provided for control of all new mechanical systems. 4.2 BUILDING OCCUPANT AND O&M PERSONNEL REQUIREMENTS The building will be operated and maintained by the University of Iowa Building & Landscape Services staff. All building HVAC system set points and programming will be controlled by the same B&LS staff in cooperation with U&EM staff and space occupants. The building occupants will only be trained to adjust space thermostats (+/- 2 degrees from master setpoint) and to override occupancy sensors and unoccupied control sequences. 5. WATER EFFICIENCY GOALS The entire building will be provided with low flow plumbing fixtures which will use 30% less water than the code based fixtures. 8

14 6. LANDSCAPING GOALS The landscape design is limited in scope and primarily along the south end of the building. The building will utilize storm water management methods to minimize or eliminate storm water leaving this building site. 9