Hitachi RCI Service Manual page 133

4 Electrical wiring
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.
Nº
1 Electrical box
2 Tie
3 Die-cut wiring hole
4 Grille
5 Remote control wiring (optional)
6 Communication wiring
7 Power wiring
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.
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SMGB0063 rev. 1 - 10/2010
Part
4