National Aeronautics and Space Administration, Goddard Space Flight Center, Wallops Flight Facility, Wallops Island, VA 23337

41 -- CONDENSING UNIT SOL 229-01642-000A/713 DUE 062795 POC Nicole D. Turner, (804) 824-1418, Contracting Officer, Darlene B. Floyd, (804) 824-1410. (1) Condensing unit, air cooled, 460V, 3 phase, 60 Hz, MCA-106 AMPS, 4-step unloading (100%-80%-60%-30%) capacity steps to match trane DX coil circuiting, nominal 50 tons, R-22 system, dual independent refrigeration circuits, quantity four (4) scroll compressors with integral hot gas mufflers; scroll compressors resistant to damage if liquid refrigerant slugs enter compressor, low ambient head pressure control to 0 degrees F, suction service valves on each circuit, refrigerant pressure gauges on each circuit, bronze glow protective coating on entire interior, exterior, bottom of casting and on condenser coils, coating shall be resistant to corrosion due to salt spray atmosphere, also coating shall be thermally conductive and shall not reduce equipment heat transfer capacity by more than 1%, coating to resist coil corrosion due to salt spray atmosphere, full load efficiency: EER-10.4, part load efficiency: IPLV=14.7, dimensions: 7'4 3/8''W x 9'5 7/8''L x 7'2 1/2''H, weight: 3,366 lbs, Trane stock no. DTSA-RAUC-C504BE13DF, 1 each. (2) Cooling Coil, direct expansion, nominal 50 tons, coil shall replace existing R-12 DX coil and have the same dimensions and capacity. Coil must match existing air handler model no. M-31, serial no. K77E16831, four (4) distributor circuits to match item 1 unloading steps, coil shall have copper tubes, aluminum fins, galvanized casing, air pressure drop equal to R-12 DX coil, R-22 system, single coil construction, factory mounted ''Packed Elbow'' with interior orifice plate to ensure even refrigerant flow to the top of the distributor and to extend liquid line connection to the casing exterior, intertwined coil circuiting (alternate tube feed) to ensure that a single capacity step can give full coil activation and reduce air stratification, Trane Stock no. DTSA-PRS1-20105-139LOA, 1 each. This synopsis is being issued to solicit quotations from vendors desiring to furnish the above described items to the Government at the address set forth below. Written quotation in response to this request for quotation (RFQ) should be submitted to the attention of the individuals set forth above no later than 4:30 p.m. Eastern on 6/27/1995. Delivery to NASA, Goddard Space Flight Center, Wallops Flight Facility, Wallops Island, VA 23337. Delivery is required 45 days after award of a purchase order. Award is anticipated to be made within 7 calendar days after the closing date of the RFQ and will be made to the responsible firm submitting the lowest responsive quote for specific make/model shown above. Only the above specific make/model will meet Government requirements as the equipment must be able to operate in an existing air conditioning system. All quotes received from Small Business Concerns will be considered. See Numbered Notes 1 and 22. Collect calls not accepted. (0143)

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