Hitachi RAS-(4-12)HNP(1)(E) - Removing the Compressor

10 Servicing
355
SMGB0087 rev.0 - 12/2013
10
5 Remove the electrical box cover.
6 Remove the fan motor connector (CN24) inserted into the PCB in the electrical box.
Remove the fan motor lead wire xed onto the motor clamp using a cord band.
Remove 4 screws which xes the motor.
1 Cap nut
2
Propeller fan
1 Electrical box cover
1 Cord band
2
Fan motor lead wire
3
Four (4) screws
4
Fan motor
N O T E
• Tomountthemotorbesuretoplacetheleadwireoutletdownward.
• Fixthemotorleadwireontothemotorclampusingacordbandasbeforetoavoidobstructingthepropellerfan.
• Mountingthepropellerfan:
• Inserttheskiddingprotectionpartofthefanbossmatchingwiththemotorshaftnotch;tightenthenutaftertheshaft
screwfullycomesout.(TighteningTorque3.0Nm).
• ConnectthemotorleadwiretotheelectricalboxPCB.(Toconnectinsertintotheconnector(CN24)onthePCB).
10.2.4 Removing the compressor
N O T E
• Do not expose the refrigerant cycle to the atmosphere for a long period to avoid moisture or dust into the cy-
cle. Besuretoreplacethecompressorimmediatelyafterremoving.Sealtothesuctionanddischargepipeswhenthe
refrigerantcycleisleftunattachedforaprolongedtime.
• Removethecapofnewcompressorrightbeforethereplacement.Beforemountingthecompressorsealthesuction
anddischargepipeswithatapetoprotectthecompressorfromdust.Removethetapeatpipeconnection.
• Toconnectwiringatreassemblingensurethatthecompressorterminalnumbersandwiringmarkbandcodesaremat-
ched.Incorrectwiringnumbersmayresultininverserotationanddamagethecompressor.
1 Remove the pipe cover following “10.2.1Removingpipecover”.
When the outdoor unit is installed close to a wall move the unit
from the wall removing the refrigerant piping.
2 Collect the refrigerant from the check joint.
3 Remove the front cover following “10.2.2Removingfrontcover”.
4 Remove 7 xing screws and remove the side cover.
1 Electrical box
2
Heat exchanger
3
Compressor-top thermistor
4
Compressor wiring
5
Terminal cover
6
Side cover Soundproof cover
1
2
3
4
5
6