4 Electrical and control settings
Unit electrical wiring and connection
SMGB0099 rev.0 - 12/2016
146
Follow the steps below to connect the communication cables between the outdoor and indoor unit to the terminal strip
(TB):
1 Where necessary, loosen the screws on terminals 1 and 2 on the terminal strip (TB).
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 earth wire to the earth 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 and the signal wiring earth wire to the earth connection.
3
Tighten the screw on the earthing connection in the electrical box.
4 Check that the shielded part of the earthing cables are correctly secured.
Firmly secure the cables using a tie inside the electrical box.
Cover the cables and the hole using a sealant to protect them from condensation and insects.
2
1
3
Electrical box
Bottom side view
Electrical box
Electrical box
Electrical
box
Bottom side view
Nº
Part
1
Printed circuit board 1 (PCB1)
2
Printed circuit board 2 (PCB2)
3
Terminal board (TB)
Test runs
!
C A U T I O N
•
Be careful during the test runs, as some of the safety functions remain disabled: the units operate for two hours without switching off
via the thermostat. The three-minute compressor protection is not enabled during the test.
•
Secure the rubber bushes to the panel using adhesive when the outdoor unit ducts are not used.
•
The compressor remains at a standstill during forced stoppage.
