ENGLISH-19
02
INST
ALLA
TION
Electrical connections
Overall system configuration
Connection of the power cable (1 phase 2 wires)
Distribution board
Outdoor unit
Hydro unit
1 phase
2 wires
220-
240 V ~
Earth
Communication cable
ELCB
1 phase
2 wires
220-
240 V ~
Earth
MCCB+
ELB
Or
• Install cabinet panel near the outdoor unit for the convenience of service and emergency operation off.
• Make sure to install the circuit breaker with the over-current and electric leakage protection.
CAUTION
Connection of the power cable (3 phase 4 wires)
Distribution board
Outdoor unit
Hydro unit
3phase
4wires
380 -
415 V~
Earth
Communication cable
ELCB
Earth
MCCB+
ELB
Or
MCCB + ELB MCCB + ELB
or
or
ELCB
ELCB
Distribution board
1Φ, 220-
240Vac
3Φ, 380-
415Vac
• Install cabinet panel near the outdoor unit for the convenience of service and emergency operation off.
• Make sure to install the circuit breaker with the over-current and electric leakage protection.
CAUTION