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Electrical connections
Overall system configuration
Connection of the power cable (1 phase 2 wires)
Distribution board
1 phase
2 wires
220-
240 V ~
Or
MCCB+
ELCB
ELB
Earth
• 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
3phase
4wires
380 -
415 V~
Or
MCCB+
ELCB
ELB
Earth
• 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
Outdoor unit
Communication cable
Outdoor unit
Communication cable
ENGLISH-16
Hydro unit
1 phase
1 phase
2 wires
2 wires
220-
220-
240 V ~
240 V ~
DHW tank
Earth
Hydro unit
3phase
3phase
4wires
4wires
380 -
380 -
415 V~
415 V~
DHW tank
Earth
Earth
Earth
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