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A free-standing pumpout unit shall be provided. The pumpout unit shall use a semi-hermetic reciprocating compressor with liquid-cooled condenser. Condenser liquid piping and 3-phase motor power shall be installed at the jobsite by the installing contractor.

6. Separate Storage Tank and Pumpout Unit:

A free-standing refrigerant storage tank and pumpout unit shall be provided. The storage vessels shall be designed per ASME Section VIII Division 1 code with 150 psig (1034 kPa) design pressure. Double relief valves per ANSI/ ASHRAE 15, latest edition, shall be provided. The tank shall include a liquid level gage and pressure gage. The pumpout shall use a hermetic reciprocating compressor with water-cooled condenser. Condenser water piping and 3-phase motor power shall be installed at the jobsite by the installing contractor.

7. Building Control System Interface (LON):

The chiller control system shall have the ability to interface and communicate directly to the building control using a LON based system. The LonWorks™ Carrier Translator shall output data in standard LON profiles.

8. Building Control System Interface (BACnet™):

The chiller control system shall have the ability to interface and communicate directly to the building control using a BACnet based system.

9. Refrigerant Charge:

The chiller shall ship from the factory fully charged with R-134a refrigerant and oil.

10. Thermal Insulation:

Unit manufacturer shall insulate the cooler shell, economizer, suction elbow, motor shell and motor cooling lines. Insulation shall be 1 in. (25.4 mm) thick with a thermal conductivity not exceeding

0.28

(Btu · in.)

( 0.0404

W

)

hr. Ft2 F

m C

and shall conform to UL standard 94, classification 94 HF-1.

11. Automatic Hot Gas Bypass:

Hot gas bypass valve and piping shall be factory-furnished to permit chiller operation for extended periods of time.

12. Cooler and Condenser Tubes:

Contact a local Carrier Representative for other tube offerings.

13. Cooler and Condenser Passes:

Unit manufacturer shall provide the cooler and/ or condenser with 1, 2 or 3 pass configuration on the water side.

14. Nozzle-In-Head, 300 psig (2068 kPa):

Unit manufacturer shall furnish nozzle-in-head style waterboxes on the cooler and/or condenser rated at 300 psig (2068 kPa).

15. Marine Waterboxes:

Unit manufacturer shall furnish marine style waterboxes on cooler and/or condenser rated at 150 psig (1034 kPA).

16. Marine Waterboxes:

Unit manufacturer shall furnish marine style waterboxes on cooler and/or condenser rated at 300 psig (2068 kPA).

17. Flanged Water Nozzles:

Unit manufacturer shall furnish standard flanged piping connections on the cooler and/or condenser.

18. Hinges:

Unit manufacturer shall furnish hinges on waterboxes to facilitate tube cleaning.

19. Optional Compressor Discharge Isolation Valve and Liquid Line Ball Valve:

These items shall be factory-installed to allow isolation of the refrigerant charge in the condenser for servicing the compressor.

20. Pumpout Unit:

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