Hitachi RCI-4.0FSR - Electrical Connection Of Rcim Units

3 Electrical and control settings
Unit electrical wiring and connection
SMGB0137 rev.0 - 05/2021
40

For RCI-FSR
Piping cover
Cord clamp
Wiring support plate
Electricalbox
PCB
(Printed circuit
board)
Electricalbox
cover
Screw
(forelectricalboxcover)
Screw for wiring
support plate under
piping cover
Wiring connection hole
Electricalbox
Earth terminal
Terminal board (TB2)
Terminal board (TB1)
Transmission wiring (0.75 mm
2
)
Earth
screw
Power source cable
(1~ 230V 50Hz)
(0.75 mm
2
)
Maxcurrent:5A
Remote control
switch cable
Firmlysecurethecablesusingatieinsidetheelectricalbox.
Cover the cables and the hole using a sealant to protect them from condensation and insects.
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.
3.1.3 Electrical connection of RCIM units
Before proceeding to any 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.