Hitachi RAS-(4-12)HRNM(2)(E) - Removing the Compressor

10 Servicing
375
SMGB0064 rev.0 - 08/2011
10
1. Partition plate.
2. Cord holder or cable tie.
3. Rubber bush.
4. Install DC motor to this position facing down the trap.
6 Fix the motor wire with the cable tie or the cord clamp. If not it
may cause the disconnection of the fan motor’s lead wire.
7 In order to avoid cutting edges mount the rubber bush at the
partition plate when inserting the motor wire through it. If not it
may cause the disconnection to the fan motor’s lead wire.
N O T E
• When assembling the motor ensure the cables section directly downwards. Fix the protection tube edge end
downwards to ensure water from keeping inside it.
• Fix the motor wires onto the motor clamp with a cable tie to prevent them from collisioning the fun blades.
• Assembling the fan blade: Insert the skidding protection part of fan boss in accordance with the cutting part of
the motor shaft and x the screw after dismounting the screwed part of the shaft. (Tightening Torque of 20 Nm)
• When connecting the motor wire check to ensure that the colors of the connectors on the PCN201 and PCN202
are matched with the wires.
• Fix the air outlet grille rmly to the shroud.

Removing the compressor
1 Remove the service cover and the lower part of the service panel according to the section Removing service cover,
see on page 372 and the section Removing the lower part of service panel and rear panel, see on page 373. In case that the
outdoor unit is installed close to a wall closely separate rst the outdoor unit from the wall.
2 Collect the refrigerant from the liquid stop valve the gas stop valve and the check joint at the piping.
3 Open the sound insulation cover wrapped around the compressor and remove the terminal box cover at the compres-
sor xed by one (1) screw. Disconnect the compressor wires in the terminal box and remove the sound insulation cover.
1. Upper Cover.
2. Check joint.
3. Rear panel.
4. Crankcase heater.
5. Rear pipe cover.
6. Valve stay
N O T E
• Check and take note of each terminal number and indica-
tions for its correct connection at the reassembling pro-
cess. If wires are connected in incorrect order it will lead
to a compressor failure.
1
2
3
4
5
6
4 Remove the rubber cap and the thermistor on the top of the compressor.
5 Remove the crankcase heater. (Oil heater on the lower case).