500-Ton Trailer-Mounted Air-Cooled Chiller

NASA Kennedy Space Center seeks one 500-ton trailer-mounted air-cooled chiller with associated electrical cabling, chilled water hoses, and connections, with proposals due October 30 at 4:00 PM ET. This is an unrestricted commercial acquisition under FAR Part 12 with no set-aside, using Lowest Price Technically Acceptable (LPTA) evaluation.

Place of performance is Kennedy Space Center, Florida 32899. Delivery on FOB Destination basis is required on or before June 30, 2027. The chiller must be electrically powered, 500 refrigeration tons (1,758 kilowatts), operating on three-phase 480-volt power with chilled water temperature differential of 10°F to 14°F at design conditions. The system includes helical variable-speed rotary screw compressors with at least two fully independent cooling circuits, integrated variable-speed fan motors with composite fan blades, traditional tube-and-fin copper or microchannel condenser coils with anti-corrosion coatings suitable for coastal marine environments, and IP55 ingress-protection rating per IEC 60529 for all electrical enclosures. Refrigerant must be R-134A, R-513A, or compatible ecologically friendly alternatives. The trailer must be aluminum, DOT-rated step-deck, 45–55 feet length, with minimum 25-ton load capacity. The system includes a 50-horsepower end-suction centrifugal water pump delivering minimum 1,250 gallons per minute at 100 feet total dynamic head; two sets of 480-volt, 125-amp electrical cables (minimum 25 feet each); and six-inch flexible water hoses (minimum 40 feet) with ANSI-rated bolted flange connections compatible with existing facility interfaces. The contractor shall perform on-site manufacturer-authorized startup, performance verification, and operational familiarization training for NASA personnel, and provide complete technical documentation digitally. Work is performed during first-shift hours (7:00 AM to 3:30 PM, Monday–Friday) with outage requests requiring 15 business days' advance notice. NAICS 333415; PSC 4120; size standard 1,250 employees. Quotes organized into five volumes: Price (unlimited pages), Technical (5 pages maximum), Past Performance (8 pages maximum), Small Business Subcontracting Plan if applicable, and Other Required Information. Evaluation order: compliance, price fairness and reasonableness, technical acceptability, past performance. Questions were due September 3, 2026. Large businesses must submit acceptable Small Business Subcontracting Plan if apparently successful; small businesses exempt. All FAR Part 12 commercial acquisition clauses and NASA FAR Supplement provisions apply. Amendment 3 effective October 22 extended the due date from October 21 at 4:30 PM ET to October 30 at 4:00 PM ET and updated the Statement of Work.