3 Electrical and control settings
Unit electrical wiring and connection
SMGB0137 rev.0 - 05/2021
39
3
Follow the steps below to connect the remote control cable or the optional extension wire:
1
Pass the cable through the knock-out hole in the
cabinet.
2 Connect the cable to terminals A and B of the terminal
strip (TB1).
3 Tighten the screw on terminals A and B.
4
Check that the cables are correctly secured.
Power source wiring.
Operating wiring.
Remote control
switch wiring.
Hole for wiring connection
Ø32.5 (knock out hole)
Hole for wiring
connection 30x39
Follow the steps below to connect the power cables to the terminal strip (TB1):
?
N O T E
• To connect a power supply to neutral, connect the cables to terminals L1 and N on the terminal strip (TB1).
• To connect a power supply without neutral: make the connection to terminals L1 and L2 on the terminal strip (TB1).
1 Where necessary, loosen the screws on terminals L1 and N or L1 and L2, as applicable, on the terminal strip (TB1).
2 Connect the power cables to terminals L1 and N or L1 and L2, as applicable.
3 Tighten the screws on terminals L1 and N or L1 and L2, as applicable.
4
Check that the cables are correctly secured.
Follow the steps below to connect the communication cables between the outdoor and indoor unit to the terminal strip
(TB1):
1 Where necessary, loosen the screws on terminals 1 and 2 on the terminal strip (TB1).
2 Connect the communication cables to terminals 1 and 2.
3 Tighten the screw on terminals 1 and 2.
4
Check that the cables are correctly secured.
Follow the steps below to connect the earthing cables to the earthing connection in the electrical box:
1
Where necessary, loosen the screw on the earthing connection in the electrical box.
2 Connect the shielded part of the power supply earth wire to the earth connection.
3 Connect the shielded part of the signal earth wire to the earth connection.
4
Tighten the screw on the earthing connection in the electrical box.
5
Check that the cables are correctly secured.
