Wiring; Electrical Connections; General Precautions - McQuay MCK 020A User Manual

Diagram shows typical charging method
Avoid prolong exposure of an opened compressor, or the internal part of refrigerant piping to moist
air. The POE oil in the compressor and piping can absorb moisture from air.

Electrical Connections

Wiring

Wiring regulations on wire diameters differ from country to country. Please refer to your LOCAL
ELECTRICAL CODES for field wiring rules. Be sure that installation is complied with such rules and
regulations.

General Precautions

• Ensure that the rated voltage of the unit corresponds to the nameplate before carrying out proper wiring
according to the wiring diagram.
• Provide a power outlet to be used exclusively for each unit. A power supply disconnect and a circuit
breaker for over current protection should be provided in the exclusive line.
• All wiring must be GROUNDED to prevent possible hazards due to insulation failures.
• All wiring must be firmly connected.
• All wiring must not come in contact with the hot refrigerant piping, compressor or any moving parts of fan
motors.
CAUTION FOR R407C
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