Hitachi RAS-(3-6)HVNC1(E) - Page 466

10 Servicing
452
SMGB0087 rev.0 - 12/2013
Capacitors
1 Remove all the wiring connected to the capacitors.
N O T E
Thewireshavepolarcharacters.Identifythewiremarkband
andtheindicationonthecapacitorwhenconnectingwires.
2 Remove 2 screws xing the capacitors.
CMC
1 Remove all the wiring connected to CMC.
2 Remove 3 screws xing the CMC.
Reactor
1 Remove 4 screws xing the reactor.
Noise lter
1 Remove all the wiring connected to the noise lter.
2 Hold the upper part of the 6 holders with the long nose
pliers and remove the noise lter.
Holder
Long-Nose Pliers
Noise Filter
Holder
Noise lter
Long nose pliers
CMC
IPM
Reactor
Diode module
Capacitor
Noise lter
Fuse
N O T E
• Toconnectwiringatreassembling,ensurethattheterminalnumbersandwiringmarkbandcodesarematched.Ifcon-
nectionsarewrong,thereisthepossibilityofwrongoperationandtocausedamagetoelectricalparts.
• FromthePowerWires(UPhase,VPhase,WPhase)ofInverterCompressor(MC1),pleasemakesurethatthe2wires
ofUPhaseandVPhasepassthroughthecurrentsensors(CTU•CTV)ofInverterPCB(PWB3).Alsomakesurethat
thePowerWireofUPhaseisconnectedtotheUPhasesideofcurrentsensor(CTU),andthatVPhaseisconnected
totheVPhasesideofcurrentsensor(CTV).Ifthecombinationiswrong,itcouldbeacauseofwrongoperationand
damage.
• WhenattachingthePCB,orwhenattachingthepartsattachedtothePCB,payattentionnottoclampanywiringbet-
weenplatesorelectricalcomponents.
• Screws,BushesandCollarsareusedtoxtheInverterPCB.PleaseuseBushesandCollarswithoutfaultwhenatta-
chingtheInverterPCB.Failuretodosomaycausewrongoperation.
• WhenreplacingtheControlPCB,pleasesettheDipSwitcheswiththesamecongurationasthePCBbeforereplace-
ment.Wrongsettingsmaycausewrongoperation.Also,pleaseconrmthereplacementinstructionssuppliedwiththe
PCBsoldasaservicepart.
• DonotapplytoomuchforcetotheelectricalpartsmountedonthePCBortothePCBitself.Itmaycausefailureofthe
PCB.