Carrier 30MPA installation instructions a30-4998, 09DP AIR-COOLEDCONDENSER

a30-4998

09DP

AIR-COOLED CONDENSER

NOTES:

1.Chiller must be installed level to maintain proper compressor oil return.

2.Wiring and piping shown are general points-of-connection guides only and are not intended for a specific installation. Wiring and pip- ing shown are for a quick overview of system and are not in accor- dance with recognized standards. Units should be installed using certified drawings.

3.All wiring must comply with applicable local and national codes.

4.All piping must follow standard piping techniques. Refer to Carrier System Design Manual part 3, Carrier E20-II software Refrigerant Piping program, or appropriate ASHRAE (American Society of Heating, Refrigerating, and Air Conditioning Engineers) handbook for details on proper piping sizes and design.

5.See Tables 1A and 1B for minimum system fluid volume. This sys- tem may require the addition of a holding tank to ensure adequate volume.

6.Hot gas lines should rise above refrigerant level in condenser cir- cuit. Double riser may be required; check unit minimum capacity.

7.Trap should be installed on hot gas lines to prevent condenser oil

and refrigerant vapor migration from accumulating in compressor during off cycle.

8. Pitch all horizontal lines downward in the direction of refrigerant flow.

9.Provide support to liquid and gas lines near the connections to the condenser coil.

10.For pressure relief requirements, see latest revision of ASHRAE Standard 15, Safety Code for Mechanical Refrigeration.

11.A strainer with a minimum of 40 mesh must be installed within 10 ft (3 m) of the evaporator fluid inlet to prevent debris from clogging or damaging the heat exchanger. This strainer is required and is avail- able as an accessory.

12.Piping, wiring, switches, vents, strainers, drains, and vibration iso- lation are all field-supplied.

Fig. 9 — Typical Piping with 30MPA Unit and 09DP Remote Air-Cooled Condenser

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