Hitachi RCIM-1.5FSRE - Page 63

3 Electrical and control settings
Unit electrical wiring and connection
SMGB0137 rev.0 - 05/2021
53
3
Wall
Power supply wiring
Through holes
Remote control switch
Electricalbox
Intermediate wiring
Nº Part
PCB Printed circuit board.
TF Transformer.
TB Terminalbox.
CA Capacitor.
PCB
TF
CA
TB
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.
Remote control
(PC-ARFP1E)
Power supply wires
(single phase)
Transmission
wires
Earth screw
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
! CAUTION
• Becarefulduringthetestruns,assomeofthesafetyfunctionsremaindisabled:theunitsoperatefortwohourswithoutswitchingo
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.