The electrical work should be performed by a specialist qualified for the work.
Use the three phase power supply, and be sure to install the sub power distribution board for exclusive use with the unit(separately purchased by the user).
Do not connect multiple plugs to an outlet at once because it can cause a drop in voltage, resulting in poor performance of the automatic control circuit.
Be sure to install circuit breaker (Extra purchased by the user).
Be sure to connect the grounding wire.
If the terminal is loose, fire may occur by arc.
If the terminal is connected too firmly, the terminal may be damaged.
Tightening torque (kgf•cm)
1 Phase 220V
3 Phase 380V
Electric power specification
3N~, 380V, 50Hz
3~, 220V, 60Hz
Ampere of breaker
Size of grounding wire
Min. size of electric wires from/
to the indoor/outdoor unit
Size of electric input wires
Be sure to use the wires, and switches or fuses of power distribution board are qualified and fulfill the specification.
Be sure to install knife switch or circuit breaker on the power distribution board.
The electrical and grounding work should be performed as per “ technical specifications of electrical facilities ” and “ specifications of internal wiring ”.
Be sure to connect the main electrical input wires with bolted connectors using compressed terminal.