Coast Guard Engineering Logistics Center, Auxiliary Systems Contracting Branch (Code 045/46), Mail Stop #26, 2401 Hawkins Point Road, Baltimore, MD 21226-5000

41 -- WATER CHILLER FOR MARINE USE SOL DTCG40-98-Q-50013 DUE 113097 POC Point of Contact -- Kelly Carney, Contract Specialist, (410) 762-6472; Nancy Dean, Contracting Officer, (410) 762-6461 Water Chiller, 10 ton capacity, using HFC-134A refrigerant. System shall be self-contained, fully factory assembled upon delivery with capacity controls. System shall be able to maintain a temperature of 44 degrees F. Chiller needsd to be disassembled to fit in marine doors with opening of 26" X 66" and 6" radius corners. Chiller size shall not be any larger than 34" width X 70" depth X 53" height. All refrigerant piping shall be braze joints. The design shall be as follows: (1) Compressor, 10 ton capacity, HFC-134A refrigerant, 220 volts, hermetic/semi-hermetic, 3 phase, 60 HZ, with isolators, automatic capacity reduction of at least 2 steps, crankcase oil heater, oil and suction strainers, discharge and suction shut off valves (1 each); (2) Condenser, shell and tube type, HFC-134A, tubes 90-10 copper nickel, zinc protection, for salt water use, shell seamless carbon steel with removable bolt-on heads for maintenance. Heads to have NPT connections, double liquid drains on bottom, 105 degree F condensing temperature and 90 degrees F sea water inlet temperature (1 each); (3) Pump, Chilled Water, single speed, induction motor, constant 1200 RPM continuous duty cycle, 50 degree C ambient temperature, dripproof, totally enclosed, fancooled, Class B insulation, sealed anti-friction ball bearing or bushing, 220 volts, 3 phase, 60 HZ, to deliver required flow at minimum discharge pressure of 42 PSIG (1 each); Casting and Rotors shall be bronze ANSI C90300, C92200 or C83600. Shaft key and fasteners shall be monel or stainless steel type 316. Impellers shall be bronze ANSI C90300 or C83600. Support or pedestal shall be cast or welded steel or bronze. Shaft sleeves shall be Bronze ANSI C90300, C92200, or C83600. Seals shall be mechanical with ceramic seat and carbon washers; (4) Evaporator, water chiller, shell and tube type; HFC-134A, refrigerant tubes Type K copper, chill water NPT inlet and outlet, seamless carbon steel shell with bolt-on type cast steel heads; chill water inlet temperature of 54 degrees F and outlet temperature of 44 degree F (1 each); (5) Valve, expansion, HFC-134A compatible, power head replaceable and adjustable (1 each); (6) Valve, solenoid, liquid, normally closed vavle and interchangeable coil, 115 VAC, 1 phase, 60 HZ, for pump down (1 each); (7) Thermostat, freeze protection, electrical contacts, normally closed, opens temperature 34 degree F plus or minus 1 degree F (1 each); (8) Sight Glass, replaceable moisture indicator element, HFC-134A refrigerant, solder connection (1 each); (9) Filter, dryer, replaceable core type, HFC-134A, 10 ton (1 each); (10) Heater, oil crankcase, 115 VAC, 1 phase, 60 HZ, to automatically de-energize upon compression start up (1 each); (11) Gauges, suction and discharge with valves (1 each); (12) Valve, relief, shall relieve the high pressure side to the low pressure side before rleasing to the atmosphere (1 each); (13) Rupture disc for emergency relief valve (1 each); (14) Valve, regulating, salt water application, to provide correct flow thru condenser under all operating conditions, for sea water service (1 each); (15) Valve for liquid refrigerant (1 each); (16) Strainer, compatible with HFC-134A refrigerant, 10 ton capacity (1 each); (17) Control Panel, electrical controls for independent Water Chiller Systems clearly labeled. Controls and components shall be marine type, rated for 50 degree C ambient temperature. Mercury switches will not be acceptable. Size of panel shall be 16" width X 8" depth X 26" height or smaller. Wires shall be tagged and banded. The design shall be as follows: (1) Safety Interlock/Compressor-Condenser water flow swtich; (b) Safety interlock/Compressor-Chilled water circulating pump running; (c) Safety interlock/compressor-condenser water circulating pump running; (d) Safety high and low pressure controls; (18) Motor Controller, for chilled water pump, AC magnetic across the line, full voltage, nonreversing, 220 volts, 3 phase, 60 HZ, rated for 50 degree C ambient temperature; start/stop push buttons, green indicating light for pump running, white indicating light for power available, two auxiliary contact normally open and two normally closed, control voltage 115 VAC. Controller shall meet the requirements of IEEE-STD-45-1983 (1 each); and (19) Motor Controller, for Compressor, AC magnetic across the line full voltage, non reversing, 220 volts, 3 phase, 60 HZ, selector switch for manual-off-automatic operation, rated for 50 degree C ambient temperature, green indicating light for compressor running, white indicator light for power available, and amber indicating light for compressor crankcase heater "on", two auxiliary contacts normally open and two normally closed wired to terminal block for connection to other components, control voltage 115 VAC, shall meet the requirements of IEEE-STD-45-1983 (1 each). Quantity six (6) each. Contractor shall also be required to submit Engineering and Assembly Drawings; Piping, electrical, and schematic diagrams; and technical manuals. Delivery shall be F.O.B. Destination to the Coast Guard Engineering Logistics Center, 2401 Hawkins Point Road, Baltimore, MD 21226-5000. Delivery to be approximately thirty (30) days after the date of contract award. Partial deliveries will be acceptable. It is intended to award a firm-fixed price contract. When calling for a solicitation package, be prepared to state your name, address, and solicitation number. Requests may also be faxed to (410) 762-6056. The following Notice is for informational purposes for Minority, Women-Owned, and Disadvantaged Business Entperises: The Department of Transportation (DOT), Office of Small and Disadvantaged Business Utilization (OSDBU), has a program to assist minority, women-owned, and disadvantaged business enterprises to acquire short-term working capital for transportation-related contracts. Loans are available under the DOT Short Term Lending Program (STLP), at prime interest rates to provide accounts receivable financing. The maximum line of cradit is $500,000. For further information and applicable forms regarding the STLP, contact the OSDBU at (800) 532-1169. For information regarding this acquisition, contact the contracting officials listed above (AC1028054-05) (0301)

Loren Data Corp. http://www.ld.com (SYN# 0206 19971031\41-0002.SOL)