Specifications

4) Wiring

ELECTRICAL CONNECTIONS

• Wiring regulations on wire diameters differ from country to country. Please refer to your LOCAL ELECTRICAL

CODES for field wiring rules. Be sure that installations comply with the rules and regulations.

GENERAL PRECAUTIONS

• Ensure that the rated voltage of the unit corresponds to the name plate before carrying out proper wiring

according to the wiring diagram.

• Provide a power outlet to be used exclusively for each unit. A power supply disconnects and a circuit

breaker for over-current protection should be provided in the exclusive line.

• The unit must be GROUNDED to prevent possible hazards due to insulation failures.

• All wiring must be firmly connected.

• All wiring must not touch the hot refrigerant piping, compressor or any moving parts of fan motors.

(5) Vacuuming and Charging

The pre-charged outdoor unit does not need any vacuuming or charging. However once it is connected, the

connecting pipe line and the indoor unit need to be vacuumed before releasing the R22/R407C/R410A from the

outdoor unit.

1. Open the service port core cap.

2. Connect pressure gauge to the service port.

3. Connect the line to vacuum pump. Open the charging manifold valve and turn the pump on. Vacuum to -0.1

MPa (-760mmHg) or lower. (Evacuation time varies by the pump but averagely in 1 hour).

Note : R407C - Fix filter dryer

R22 - Nil

R410A - Nil