Hitachi RAS-(4-12)HNP(1)(E) - Page 439

10 Servicing
425
SMGB0087 rev.0 - 12/2013
10
10.7.15.2 Removing Inverter module
1 Remove the service cover following “10.7.1Removing
servicecover”in this chapter.
2 Open the P plate turning counter clockwise approxi-
mately 90° following “10.7.9Openingelectricalbox(P
plate)”.
3 Check that the LED201 (red) on Inverter is OFF when
the P plate is opened.
4 Remove all the wiring connected on the Inverter.
5 Remove 4 screws which x the Inverter. Hold the wi-
res placed at the bottom side.
6 Pull the Inverter toward right side from the front of the
product. (Remove along with the plastic case and the
radiation n).
Fixing Screw
(4 pcs.)
Inverter PCB
Fixed with Cord Clamp
Inverter PCB
Fixed with cord clamps
4 xing
screws
N O T E
• WhenattachingtheinverterPCB,connecttheleadwirestomatchsurelythesymbolsofterminalontheinverterPCB
andthemarkbandsontheleadwires.Iftheleadwiresareconnectedincorrectlytoeachterminal,theelectricalcom-
ponentswillbedamaged.
• WhentheinverterPCBisreplaced,thedipswitchsettingdiffersdependingontheoutdoorunitmodeltypes.Referto
“DipSwitchSetting”aboutthedipswitchsetting.
10.7.16 Removing other electrical components
1 Remove the service cover following “10.7.1Removingservicecover”in this chapter.
2 Open the P plate turning counter clockwise approximately 90° following “10.7.9Openingelectricalbox(Pplate)”.
• Check that the LED201 (red) on Inverter is OFF when the P plate is opened.
CMC
1 Remove all the wiring connected to CMC.
2 Remove 2 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
Reactor (DCL)
Holder
Noise Filter (NF1)
Fixing Screw
Fixing Screw
Holder
Fixing
Screw
Fuse
Magnetic Contactor (CMC)
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.
• 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.