Salient Characteristics 100-Ton Chiller Portable Unit (004).docx
DOCX document 17 KB Posted
- Attached to
- Portable 100 ton Chiller with Pump Package
- Solicitation number
- W50S7X25Q0008
- Issued by
-
Department of the Army National Guard
About this file
The provided documents detail a Pre-Solicitation for a Portable 100-Ton Chiller with Pump Package by the Department of the Army National Guard, solicitation number W50S7X25Q0008. The procurement seeks a comprehensive chiller unit with extensive technical specifications, including an air-cooled scroll packaged chiller with specific electrical requirements (60 hertz, 460 volt, 3 phases), comprehensive refrigeration features, and multiple environmental adaptability options ranging from -0°F to 125°F.
The chiller package includes a 300 GPM pump mounted on a hot-dipped galvanized skid, designed for trailer mounting and forklift mobility. Critical technical requirements include UL listing, ASHRAE 90.1 compliance, AHRI certification, integrated electrical and control systems, standalone temperature controls, and extensive safety features. The unit must be manufactured according to NEC codes, undergo hydrostatic pressure testing, and include electrical connections, temperature/pressure monitoring, and a white-coated exterior. A third-party engineering firm must provide certified structural calculations, and the entire unit must be test-run before final acceptance.
View the file
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
Portable Chiller Salient Characteristics
Provide one (1) air cooled chiller unit with the following features:
o Air-Cooled Scroll Packaged Chiller o Copper Tube / Aluminum Fin condenser coils o Evaporator-Shell and tube heat exchanger o Startup Included by manufacturer o 60 hertz; 460 volt 3 phases o High efficiency/performance o Full factory refrigerant charge o Provided freeze protection (External T-STAT control) o Refrigerant isolation valves (discharge valve) o UL listed to US and Canadian safety standard o ASHRAE 90.1 all versions compliant o AHRI certified Standard cooling (42 to 65F) o Grooved pipe connection o Factory insulation - all cold parts o High ambient kit (up to 125F) o Low ambient kit (down to 0F) o Chiller shall be provided with low leaving fluid temperature option of +10F o Single point power connection o Terminal block conn for incoming lines o Enclosure type UL 1995 rated for outdoor applications o Water strainer factory installed o Dual circuit machine for staging and efficiency o Scroll compressors for dynamic staging control and energy conservation.
o Control transformer power o Integrated non-fused disconnect - “thru the panel operator” o TEAO fan motors o Insulated evaporator o Condenser coil guards o Phase monitor and phase fail indicator light (red) o Main power on indicator (green) o Master on switch o Common trouble alarm terminal o Installed flow switch safety o Temperature and pressure gauges provided o Chiller will be provided with standalone DDC temperature controls.
o Chilled water barrel heaters for freeze protection o Chiller provided with hydronic isolation and drain valves.
o Main power wiring will include single (1) Cam Lok electrical connections and associated wiring o Chiller shall be furnished with a 2” x 4” label with white backing and black lettering stating “NOTE: 480 volt power should be applied a minimum of 1 hour before starting chiller. Compressor oil heaters utilize 480 volt power.”
• Provide and install pump rated @ 300 GPM @ 100 foot/head. Pump will be mounted to the chiller skid. The close coupled pump will be integrated into the interconnecting piping and hydronic components. Installation to include a pump starter, overload, control switch and breaker.
• Internal chiller piping package to include:
o Integrated bypass to provide operation of local or remote pumps o Chiller to be provided with isolation/balancing valves, bypass valve for remote pump operation, in-line strainer with blow down valve, and low level drain valve.
o Entering and leaving fluid temperature ports and thermometers o Entering and leaving pressure ports and gauges o Drain valves at chiller barrel, pump housing and at the piping manifold lowest point.
o Chiller will be provided with an additional differential pressure safety switch. This pressure switch is independent of the factory installed safety switch.
o Provide two (2) additional ¼” access ports for field pressure/temperature testing.
o Perform hydrostatic pressure testing to 125 PSIG of the entire pump, piping and component assembly to verify no leaks are present.
o 60’ of quick connect hoses and 60’ of return hoses.
• Provide structural mounting frame for the pump on the chiller skid. Hot dipped galvanized structural members.
• Provide and install all required electrical power wiring and control devices.
• Provide all required starters, overloads and disconnects.
• The skid shall be fabricated to mount the chiller unit to a trailer unit
• The lifting frame material needs to have to ability to be loaded or moved with forklift
• The chiller shall be attached to the structure along all sides.
• The entire skid and lifting frame shall be provided with a hot dipped galvanized coating for increased corrosion protection.
• The unit shall be manufactured in accordance with NEC codes, ETL requirements and labeled with the appropriate 3rd party NRTL as requested.
• Chiller / pump assembly shall be provided with a certified skid / lifting frame structural calculations and certificates issued by a 3rd party engineering firm.
• The exterior of the unit shall be properly prepared and coated white.
• Unit to be test run before acceptance.
File details come from the government source that posted it. Updated .