SAM #N4215826SN001

Temporary Rental of 150 Ton Air-Cooled Chiller for Critical System Support

This opportunity involves the temporary rental of a high-capacity air-cooled chiller to support critical systems at the Norfolk Naval Shipyard. - Government Buyer: - Department of the Navy, Naval Sea Systems Command (NAVSEA), Norfolk Naval Shipyard - Products/Services Requested: - Temporary rental of a minimum 150 ton air-cooled chill water unit - Chiller must operate on a single 460/480V, 400 Amp breaker with a male 500 mcm Camlock electrical connection - System must include at least one circulating pump (450 GPM at 300 ft head pressure), with supplemental pumps allowed - Two inlets and two outlets (2-1/2” Male NPT) with isolation globe valves - Free-standing unit with forklift slots, operational inlet/outlet pressure gauges - Electronic monitoring system for inlet/outlet temperatures and flow rates - Water temperature delivery between 45°F and 55°F; evaporator capable of <45°F; condenser operable from 0°F to 125°F - All equipment from return manifold to supply manifold, including extra fittings and hoses, must be provided - Environmental catch tank required if system holds 55+ gallons of fuel or oil - Supplier tag and point of contact for repairs/maintenance required - Instruction manual and training to be provided as requested - All equipment must be insulated to reduce temperature losses - OEMs and Vendors: - No specific OEMs or vendors are named in the solicitation - Unique/Notable Requirements: - Environmental catch tank for large fluid systems - Supplier identification and maintenance POC tagging - Training and instruction manual provision - All contractor-supplied equipment must be insulated - Place of Performance: - Norfolk Naval Shipyard, Portsmouth, VA - Additional reference to South Carolina (ZIP 29445) as a place of performance

Description

Chill Water Unit shall be a minimum 150 Ton Capacity Chiller.

Must be air-cooled.

Must be operable on a single 460/480 (V), 400 Amp Breaker (MAXIMUM).

Must be provided with a male 500 mcm Camlock electrical connection.

Single Circulating pump (minimum).

CRITICAL SYSTEM SUPPORT: Unit must be capable of operating twenty-four (24) hours a day, seven (7) days a Week.

At a minimum, the pumping system shall be capable of providing 450 GPM at 300 feet of head pressure.  Supplemental pumps may be provided if needed to meet required pressure/flow rates, but a pump integral to the chiller unit would be preferred.

Unit must have two (2) each inlets. Inlets must be 2-1/2” Male NPT. All inlet connections shall have isolation globe valves installed.

Unit must have two (2) each outlets. Outlets must be 2-1/2” Male NPT. All outlet connections shall have isolation globe valves installed.

The gross weight of the unit shall be clearly marked on the outside of the unit as outlined in Paragraph 11.  If the unit is not a complete unit, the gross weight of each component shall be clearly marked on each component.

Unit must be free standing and have forklift slots (capable of being moved with a forklift).  If the unit is not a complete unit, each component shall be capable of being moved with a forklift as well.

Chiller Unit to be equipped with operational Inlet and Outlet Pressure Gages.  Pressure gages are to be located on the contractor provided supply and discharge manifolds.

Unit shall have an electronic monitoring system that monitors inlet and outlet temperatures and flow rates.

Desired output water temperature range is 45° F - 55° F.

Evaporator must be capable of delivering a leaving temperature of less than 45 °F.

Condenser must be capable of operating in a wide ambient temperature range (0-125 °F).

Shown in figure below, Contractor is to provide all equipment from the return manifold to the supply manifold.  System shall be a complete unit.  If pump is separate, vendor will provide and install all piping/valves/fittings as required to couple pump to the Chill Water Unit.  Vendor is to provide extra fittings and hoses to support installation, as required. If the system requires assembly, the system shall be assembled in such a way that it does not cause tripping hazards by minimizing the lengths of hoses between components.  If lengths of hoses are longer than needed, it should be able to be coiled and put somewhere out of the way of normal foot traffic.  Hoses shall be routed in a way that does not cause the hose to kink and reduce flowrate.

If chiller system holds 55 gallons or more of fuel or oil or similar fluid, provide an environmental catch tank capable of holding at least 110% of the capacity of the fuel, oil and other fluids required to operate the rental unit.

Unit must be affixed with a metal tag designating the supplying company, a POC responsible for repairs and maintenance, and a phone number for the POC who is responsible for repairs and maintenance.

Contractor must provide instruction manual and training as requested.

Contractor provided equipment (i.e. hoses, manifolds, etc.) shall have insulation installed around them to reduce temperature losses in the Chill Water System.

Interested vendors should notify contract speicialist of their interest

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