Removing Electrical Box - Hitachi RAS-2-HVNP Service Manual

10. Servicing
10.4.1.6 Removing electrical box
1 Remove the service cover following
2 Remove the upper cover following
3 Remove 4 screws which fix the electrical box.
4 Pull up and remove the electrical box.
N O T E
The following wiring must be removed to dismount the electrical box.
1. Remove the reversing valve coil from the reversing valve. : Removing reversing valve coil.
2. Remove the expansion valve coil from the expansion valve. : Removing electronic expansion valve coil.
3. Remove the solenoid valve coil from the solenoid valve. : Removing solenoid valve coil.
4. Remove the Faston terminals of high/low pressure switch and the pressure switch for control from the
switch body : Removing the high pressure switch, low pressure switch and pressure switch for control.
5. Remove all connectors on the control PCB.
6. Remove the compressor wires in the terminal box of the compressor.
7. 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).
Original position
Original Position
Electrical box (radiation fin)
Partition plate
Partition Plate
Place the electrical box (radiation fin) in Set the electrical box (radiation fin)
in front of the partition plate.
front of the partition plate.
(Refer to the above picture "Original Position".)
(Refer to the original position)
394
SMGB0079 rev.0 - 01/2013
Removing service
Removing upper
Front
Front
side
Side
Electrical Box (Radiation Fin)
Front
Front
side
Side
cover.
cover.
Electrical box
Electrical Box
Front
Front
side
Side
Place the electrical box to hook the
Position the electrical box to catch
parts onto the partition plate.
onto the partition plate.
Upper cover
Upper Cover
Remove four (4) fixing screws Remove 4 screws fixing the
for electrical box.
electrical box
U-shapped hole
U-shaped Hole
Partition plate
Partition Plate
Fan Room
Fan room
part