Hitachi RCI Service Manual page 144

4 Electrical wiring
Nº
PCB Printed circuit board.
TF Transformer.
TB Terminal box.
CA Capacitor.
Follow the steps below to connect the cable of the remote control
(PC-ART/PC-P2HTE) or the optional extension wire:
1 Pass the cable through the knockout hole in the cabinet.
2 Connect the cable to terminals A and B in the electrical box.
3 Tighten the screw on terminals A and B in the electrical box.
4 Check that the cables are correctly secured.
Follow the steps below to connect the power cables to the power
terminals in the electrical box:
1 Where necessary, loosen the screws on the power terminals in
the electrical box.
2 Connect power cables L1 and N to the power terminals in the
electrical box.
3 Tighten the screws on the power terminals in the electrical box.
4 Check that the power cables are correctly secured.
Follow the steps below to connect the communication cables between the outdoor and indoor unit to the terminals in the
electrical box:
1 Where necessary, loosen the screws on the communication terminals in the electrical box.
2 Connect the communication cables to communication terminals 1 and 2 in the electrical box.
3 Tighten the screws on the communication terminals in the electrical box.
4 Check that the communication cables are correctly secured.
Follow the steps below to connect the earth wire to the earth terminal in the electrical box:
1 Where necessary, loosen the screw on the earthing terminal in the electrical box.
2 Connect the shielded part of the power supply and signal wiring earthing cables to the earthing terminal.
3 Tighten the screw on the earth terminal in the electrical box.
4 Check that the shielded part of the earthing cables are correctly secured.
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