WSR-88D HEATING, VENTILATING AND AIR CONDITIONING (HVAC) UNIT REPLACEMENT MARKET SEARCH FOR WSR-88D HEATING, VENTILATING AND AIR CONDITIONING (HVAC) UNIT REPLACEMENT. THIS IS A REQUEST FOR INFORMATION (RFI) ONLY. The U.S. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Weather Service (NWS) is conducting market research for replacement of the air conditioning systems for the WSR-88D (Weather Surveillance Radar-1988 Doppler) Radar Data Acquisition (RDA) Shelters. The existing Heating, Ventilating and Air Conditioning (HVAC) units operate 24 hours per day, 7 days per week, continuously, The existing HVAC units are 5-ton wall mounted units manufactured by Bard Manufacturing Company (Models: 60WA-B09CF16, WA601-B09XXXXXJ, or WA602-B09XXXXXJ). The existing HVAC units have reached their useful life and need to be replaced. The existing HVAC units are wall mounted on the end wall of a 10 foot wide x 20 foot length x 10 foot height shelter. The standby generator is limited in available power and the total HVAC load cannot exceed 10-tonscapacity due to power requirements. GENERAL: The National Weather Service desires to replace the existing HVAC units with a highly reliable, larger capacity unit with 100 percent standby capability. The primary purpose is to replace on an as-needed basis, the existing HVAC units that have reached their useful life at approximately 150 Radar sites. Responses are limited to providing two 10-ton capacity (120,000 BTHU) HVAC units per RDA shelter to operate in ambient conditions of 125 Degrees F summer and -40 degrees F winter. Inside shelter conditions must be maintained at 70 degrees F. Economizer Systems can not be used. The replacement HVAC units must be outdoor, air cooled, packaged, vertical, wall mounted units with an automatic master control system to operate the units alternately for 100 percent redundancy for the WSR-88D. The HVAC unit shall include fans, compressors, condenser, evaporator, refrigerant piping, pipe insulation, control system, associated controls, electric heating coils, and wiring including all components that are required for a complete, functional and useable system. The power requirement is 208 volt, 60 HZ, 3-phase power with a maximum nameplate amperage load of 55 amps per 10 ton unit. The compressors must operate continuously to prevent power spikes affecting the backup power generator. One air conditioning unit shall be in operation while the other shall be in standby. In the event of a failure of the operating unit, the failed unit shall be locked out of operation and the control shall transfer to the standby unit causing it to start and operate automatically. The dimensions of the individual units shall not exceed 94 inches height, 48 inches width and 28 inches depth. The weight of each unit shall not exceed 975 pounds. The unit shall have a companion automatic master factory pre-wired controller designed with a solid state timer that automatically switches the two units every 7-days determining the primary and secondary unit for the next seven (7)-day period. The master controllershall be equipped with a two stage cool and two stage heat wide differential thermostat for each HVAC unit, on alarm (lights) circuit signaling power loss conditions, and second stage cooling. Additional controller features shall include an accelerated timer advance allowing for easy servicing and check-out of the back-up unit operation. There shall be an independent power supply built into each master control system eliminating the need for unit phasing. Responses to this Market Survey must include the HVAC unit manufacturer, a product description with performance parameters including reliability and environmental specifications, a statement regarding current availability, (in production or fully developed but not in production), estimated cost of the product, and minimum order quantity with delivery/production time. Responses shall also indicate the availability and cost of an operations and maintenance manual for the HVAC unit that includes dimensions, electric wiring and control drawings; control schemes, parts list and troubleshooting techniques. This RFI does not constitute an Invitation for Bid (IFB), Request for Proposal (RFP) or a Request for Quotation (RFQ). No solicitation is available at this time. Information should be sent to the attention of Jackie Shewmaker, U.S. Department of Commerce, NOAA, Acquisitions Branch, Room 1756, 601 East 12th Street, Kansas City, Missouri 64106. Facsimile responses will not be accepted. Responses must be received no later than close of business Monday, February 7, 2000. No telephone calls will be accepted or returned. EMAILADD: jacquelyn.a.shewmaker@noaa.gov Posted 01/04/00 (W-SN413007).

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