Hitachi RCIM-1.0FSRE - DIP Switch Settings

3 Electrical and control settings
Unit electrical wiring and connection
SMGB0137 rev.0 - 05/2021
44
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.
3.1.5 Electrical connection of RPC units
Work prior to the electrical connection
1 Turno󰀨thepowersupplyswitchesbeforestartingworkandttheappropriatelocksandsafetywarnings.
2 Wait5minutesafterturningo󰀨thepowersupplyswitches.
3 Checkthatthefansontheindoorandoutdoorunitsareatastandstillbeforestartingwork.
? NOTE
• Theelectricalpowerfortheunitmustinvolveaspecicpowerline,withanexclusivepowercontrolswitchandresidualcurrentbreaker,
installed in line with local or national safety regulations.
• Checkthattheelectricalpowerlinehasenoughcapacitytosupplytheunit.Itslength,thecablediameterandtheirprotection(sleeve
orjacket)mustbeappropriatefortheunit.
• Forfurtherinformation,alwaysconsiderthecurrentregulationsinthecountrywheretheunitistobeinstalled.
! CAUTION
• Riskofre:cablesmustnevertouchtherefrigerantpipes,printedcircuitboards(PCB),sharpedgesorelectricalcomponentsinside
the unit to avoid damaging them.
• Looseconnectionterminalsmayleadtocableandterminaloverheating.Theunitmayoperateincorrectly,leadingtoariskofre.
Checkthatthecablesarermlysecuredtotheconnectionterminals.
Electrical connection
CheckthatthepowersupplyfortheRPCindoorunitis230V.Ifnot,replaceconnectorsCNontheTFtransformersinthe
electricalbox.
? 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.
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.
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.