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SFO Template - Office of Construction & Facilities Management Home

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MAY 2009SOLICITATION FOR OFFERS OUTPATIENT CLINIC <strong>SFO</strong> NO. VA-101-XX-RP-XXXX[INSERT LOCATION OF FACILITY]Simple unitary loopSub-centralCentralThe designer may select any one or combination <strong>of</strong> the above loops.C. Heat PumpsUse water-to-air heat pumps with differing configurations to match the applications.Examples:Vertical (up-flow or down-flow)HorizontalClassroomConsoleD. Minimum Outdoor Air – VentilationProvide a dedicated, central air-handling unit with a heat recovery system for colder climatewhere outdoor design temperature at 99% is 41°F [5°C] or lower.6.4.9 REFRIGERATION SYSTEMS – CHILLED WATER AND DIRECT-EXPANSION (DX)SYSTEMSProvide ARI certified, air-cooled or water-cooled refrigeration units.Use EPA approved refrigerants (HFC-134a, HFC-410a, or HCFC-123).Use <strong>of</strong> HCFC-22 refrigerant is not permitted.Provide multiple units (minimum two) to ensure flexibility and efficient part load operation. Use<strong>of</strong> reciprocating compressors is NOT permitted. Equipment efficiencies shall be in compliancewith the DOE, FEMP program.6.4.10 CHILLED WATER SYSTEMSA. GeneralCapacity <strong>of</strong> a single air-cooled chiller shall not exceed 200 tons. Capacity <strong>of</strong> a single watercooledchiller (Centrifugal or Rotary Screw) shall not exceed 1,250 tons. Provide multiplechillers (at least two) to ensure reliability and efficient part load operation. A chilled watersystem shall be provided for all 100% OSA units.B. Chiller ControlsEach chiller shall be equipped with a factory-installed and tested microprocessor for the safetyand operating controls. The microprocessor shall be able to interface with the building DDC(Direct Digital Controls) controls with a BACNET open protocol arrangement.C. Chilled Water Piping/Pumping SystemProvide a fully functional chilled-water piping and pumping system complete with accessoriesand devices, such as variable-speed drives, flowmeter, and temperature and pressuresensors. Selection <strong>of</strong> the piping and pumping arrangement shall be project-specific. Providevariable flow chilled-water pumping (variable primary or primary-secondary) system to ensureenergy efficient operation from full load to part load conditions.Part I: Basic Solicitation Requirements – Page 104 <strong>of</strong> 196Lessor __________ Gov’t. ____________________ <strong>of</strong> __________ Pages

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