Hitachi RCI-1.0FSR Service Manual page 63

3 Electrical and control settings
Unit electrical wiring and connection
Electrical box
Intermediate wiring
Remote control switch
Power supply 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-ARFP1E) 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 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.
53 SMGB0137 rev.0 - 05/2021
Wall
Through holes
Part
PCB
TB
Remote control
Power supply wires
(PC-ARFP1E)
(single phase)
Transmission
wires
TF
CA
3
Earth screw