Hitachi RAS-(2-6)HVNP1(E), Service Manual

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10 Servicing
375
SMGB0087 rev.0 - 12/2013
10
10.4.6 Removing electrical box
1 Remove the service cover following “10.4.1 Removing
service cover” .
2 Remove the upper cover following “10.4.3 Removing
upper cover” . Remove 4 screws which fix the electrical
box.
3 Pull up and remove the electrical box.
Remove four (4) fixing screws
for electrical box.
Upper Cover
Electrical Box
Electrical box
Upper cover
Remove 4 screws
fixing 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:
“10.4.10 Removing Reversing valve coil”
2. Remove the expansion valve coil from the expansion valve: “10.4.11 Removing electronic expansion valve coil” .
3. Remove the solenoid valve coil from the solenoid valve: “10.4.12 Removing solenoid valve coil (SVA and SVC)” .
4. Remove the Faston terminals of high/low pressure switch and the pressure switch for control from the switch body:
“10.4.8 Removing the High 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).
Front
Side
Original Position
Front
side
Original position
Partition Plate
U-shaped Hole
Partition plate
U-shapped
hole
Partition Plate
Front
Side
Electrical Box (Radiation Fin)
Set the electrical box (radiation fin)
in front of the partition plate.
(Refer to the above picture “Original Position”.)
Front
side
Partition plate
Place the electrical box (radiation fin) in
front of the partition plate.
(Refer to the original position)
Electrical box (radiation fin)
Fan Room
Front
Side
Position the electrical box to catch part
onto the partition plate.
Front
side
Place the electrical box to hook the parts
onto the partition plate.
Fan room