NASA, John F. Kennedy Space Center, Kennedy Space Center, FL 32899

41 -- PORTABLE PURGE UNITS SOL RFQ RB95-117 DUE 062295 POC Robert Bohacs, LSO-360, Kennedy Space Center, FL 32815. Lockheed Space Operations Company (LSOC), a NASA Prime Contractor at Kennedy Space Center (KSC), FL, seeks sources capable of providing the following requirements: fabrication, assembly, cleaning, painting, testing, and delivery to KSC of two (2) Portable Purge Units (PPU) with one unit to be delivered this fiscal year (FY-95) and one unit to be delivered in FY-96. In addition, LSOC requires an option of one additional unit in FY-96 and two additional units in FY-97. LSOC will provide the chiller and compressor and other miscellaneious long lead items as Government-Furnished Property, plus a complete set of assembly drawings with KSC specifications. Each PPU will have a three hundred (300) ton rotary screw water-cooled chiller using HCFC R-22 as the refrigerant, eight (8) condensing coils with circular pump, a chilled water coil with circulation pump. The cooling fluid shall be 75 percent water and 25 percent glycol by weight. The compressor will deliver 500 lbs. per minute dry air at 4 PSIG. The heat of compression will be removed by two (2) absorption heat pipe assemblies located upstream of the cooling coil and discharging to atmosphere through two (2) rejection heat pipes. The inlet air will be filtered with throw-away and bag filters. The supply air shall pass through the compressor, heat pipe, cooling coil, carbon filter and HEPA filter to a plenum. A by-pass duct shall return a portion of the conditioned air to the intake of the compressor. The plenum discharges air into four (4) duct assemblies, each containing an electric heater, a venturi flow meter, flow and temperature transducers and flow control valves. Cooling coil condensate will be sprayed upon the heat pipes and condenser coils. Materials of construction are: carbon steel for structure, copper tubing.aluminum fin coils, PVC, copper and stainelss steel tubing. Two electrical cabinets, one power and one control, are requried. The PPU control system shall consist of a programmable logic controller (PLC) with LCD monitor. LSOC will provide the software. Facility requirements shall be an enclosed structure, preferably temperatur controlled atmosphere with a Class 100,000 assembly area. Prospective offerors must be NASA-approved for cleaning to KSC-C-123, Rev. G, specification, or use a NASA-approved firm for cleaning. Facility requirements for electrical control cable fabrication shall be per KSC STD-132, Standard for Potting and Molding Electrical Cable Assembly. The anticipated period of performance will be 120 days after award. Each task associated with this project shall be in accordance with the engineering drawings, specifications and standards included in the solicitation and resulting contract. It shall be the responsibility of the successful offeror to provide all necessary supervision, labor, tools, supplies and equipment (except GFP), and security required for successful completion of this project. A property management system adequate for protection of Government property is required. Interested firms should submit, in duplicate, a statement of capabilities in sufficient detail to establish bona fide capability to meet the technical requirements set forth herein. Requirements are experience and expertise in precision fabrication, welding, sheet metal works, tube bending, refrigeration, assembly, electrical power and controls installations and industrial type PLC/computer installation. Indications of interest and capabilities data must be submitted to each LSOC no later than 052295. Address Lockheed Space Operations Company, P. O. Box 21166, Kennedy Space Center, FL 32815, Attn: Robert Bohacs, Mail Code LSO-360. Questions may be faxed to FAX (407) 867-7068. (0128)

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