Hitachi RAS-4-HNPE - Removing the Compressor

10. Servicing
412
SMGB0079 rev.0 - 01/2013
10.4.2.7 Removing the compressor
1 Remove the service cover and the bottom service cover following Removing service cover, and Removing bottom
service cover and rear cover.
When the outdoor unit is installed close to a wall remove the refrigerant piping and move the unit from the wall.
2 Collect the refrigerant from the check joint.
N O T E
CheckPerformtherecoveryworkatthecheckjoint
ofpiping.Ifnot,therefrigerantremainsinside.
1
2
3
4
5
6
Upper cover
Check joint
Rear panel
Cranckcase heater
Rear pipe cover
Valve stay
3 Open the soundproof cover wrapped around the compressor and remove the terminal box cover of the compressor
body. Disconnect the compressor wires in the terminal box and disconnect the thermistor on top of the compressor.
Remove the soundproof cover.
N O T E
Checktheterminalcodesandmarkbandswhendisconnectingthewires.Connectingwiresinwrongorderat
reassemblingmayresultincompressordamage.
4 Remove the rubber cap and the thermistor attached on top of the compressor.
5 Remove the crankcase heater.
1. Sound-proof cover.
2. Oil heater.
3. Cut part.
A. Direction to remove the cover.