Hitachi RCIM-1.5FSRE - Page 56

3 Electrical and control settings
Unit electrical wiring and connection
SMGB0137 rev.0 - 05/2021
46
Electrical connection
CheckthatthepowersupplyfortheRPIindoorunitis230V.Ifnot,replaceconnectorsCNontheTFtransformersinthe
electricalbox.
? NOTE
Theservicepanelfortheindoorunitfanmotorisatthebottomoftheunitandtheelectricalboxservicepanelisontheright-handside.
Open the service panel.
Cut the centre of the rubber bushing in the wiring connection hole.
? NOTE
• Topreventthescrewsfromfallingfromtheterminalbox,donotremovethemcompletely,holdontotheterminalandcheckthatthe
screw is secure through the hole in the terminal.
• Usethefollowingscrewsfortheterminalbox:
- M4 screw for the power supply.
- M3.5 screw for the operating line.
Cut inside
Rubber bushing
Followthestepsbelowtoconnecttheremotecontrolcable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 of the terminal strip (TB).
3 Tighten the screw on terminals A and B.
4 Checkthatthecablesarecorrectlysecured.
Follow the steps below to connect the power cables to the terminal
strip(TB):
1 Where necessary, loosen the screws on terminals L1 and N on
the terminal strip (TB).
2 Connect the power cables to terminals L1 and N.
3 Tighten the screws on terminals L1 and N.
4 Checkthatthecablesarecorrectlysecured.
Remote control
(PC-ARFP1E)
Power supply wires
(single phase)
Transmission
wires
Earth screw
From 0.4 to 6.0 hp
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.
Earth wiring
Remote control
(PC-ARFP1E)
Transmission wires
Power supply wires
(single phase)
From 8.0 to 20.0 hp