6.8.12 Connecting and configuring the electrical back-up
Accessing the indoor module terminal blocks
1. Remove the retaining screw.
2. Remove the protective cover.
Connecting the electrical back-up to the indoor unit
Caution
The length of the conductors between the cable clamp and the
terminals must be such that the active conductors are put under
tension before the earth conductor.
Feed the electrical back-up heater power supply cable into the
230-V cable duct.
Adapt the length of the cables and check their positions with a
cable clamp.
Single-phase connection
A Bridge
B Power supply
Three-phase connection
A Bridge
B Power supply
Press the orange push-button to allow the wire to be correctly inserted in
the connector and locked.
Fig.52
MW-1001223-1
1
2
Fig.53
2-6 kW
2 kW
MW
-1001224-4
HP029=1
HP029=2
230V~
1
3
Fig.54
MW
-1001225-3
1
3
4-8 kW
4 kW
HP029=1
HP029=2
400V 3N~
4-12 kW
HP029=1
HP029=2
400V 3N~
8-12 kW
HP029=1
HP029=2
400V 3N~
8 kW
6 Installation
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