SATPC0041029 TAB 04 4 SOW..pdf

This is a Statement of Work for the replacement of an existing air-cooled scroll chiller at a NASA facility. The project involves procuring one air-cooled packaged chiller based on the York YLAA0041HJ17XCB or approved equivalent (including models from Daikin, Trane, or Carrier) with a performance period beginning December 11, 2026. The new chiller must include specific components such as R454B refrigerant, 200-208/3/60 power application, control transformer, 65kA SCWR circuit breaker with lockable handle, across-the-line starter, TEAO fan motors, low-sound fans with VSD, post-coated dipped coils with Environment Guard Premium, service isolation valves, low/high ambient kit, louvered enclosure panels, hot gas bypass on both circuits, SC-Equip board compatible with BAC Net, electronic expansion valves, and an extension kit.

The contractor must provide complete labor and materials for demolition of the existing 25-ton McQuay chiller with certified refrigerant recovery, removal of old piping and supports, installation of vibration isolators, new ball or butterfly valves with insulation extensions, full-size "T" fittings as temporary connections, inline strainer, balancing valve, pressure gauges with shut-off valves, thermometers, high vent with isolation valve, new hangers and supports, self-regulating heat tape, fiberglass insulation with aluminum roll jacketing, water flow balancing by a certified contractor, BAS integration using Metasys or Tridium systems, all necessary power and control wiring, factory start-up, and proper disposal of the old chiller. The basis of design specifies 208-volt power with minimum amperage of 182 and maximum of 200. All work must meet ASHRAE and NEC standards. Standard warranty includes five years for unit parts and labor, six years for compressor parts and labor, five years for refrigerant, and five years for condenser coil parts only. Required deliverables include equipment submittals, certified balancing report, construction schedule, factory start-up notification to NASA personnel, and ongoing communication regarding actual delivery dates.