Removing Electrical Box; Correct Installation - Hitachi RAS-(3-6)HVRNM2E Service Manual

10 Servicing
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Removing electrical box
1 Remove the service cover following
2 Remove the upper cover following
3 Remove four (4) screws which fix the electrical box.
4 Pull up and remove the electrical box.
1. Electrical box.
2. Upper cover.
3. Compressor.
N O T E
• Wiring must be removed to dismount the electrical box.
1. Remove the 4-way valve coil from the 4-way valve. :
2. Remove the expansion valve coil from the expansion valve. :
see on page 417.
3. Remove the solenoid valve coil from the solenoid valve. :
4. Remove the Faston terminals of high pressure switch and the pressure switch for control from the switch
body.
5. Remove connectors on the control PCB.
- THM7 (Outdoor Air).
- THM8 (Piping).
- THM9 (Compressor-top).
- PCN5 (Crankcase Heater).
6. Remove connectors on the DIP-IPM CN202
7. Remove the compressor power wire from the compressor.
8. To remount the electrical box attach the electrical box fitting with the partition plate.
(Insert the radiation fin into the U-notch on the partition plate and place the fin on the fan box side. Then
attach the electrical box hooking onto the partition plate).

Correct installation

412
SMGB0064 rev.0 - 08/2011
Removing service cover, see on page 408.
Removing upper cover, see on page 409.
Removing four-way valve
1. Partition Plate.
2. Place the electrical box onto the front
fold of the partition plate (see correct ins-
tallation).
coil, see on page 416.
Removing electronic expansion valve
Removing solenoid valve coil
1. Place to hook the part onto the partition
plate.
1
2
3
coil,
(20A), see on page 418.
Fan Box