Hitachi RAS-4-HNC - Removing Electrical Box

10. Servicing
335
SMGB0079 rev.0 - 01/2013
10
10.3.1.6 Removing electrical box
1 Remove the service cover following Removing service cover.
2 Remove the upper cover following Removing upper cover.
3 Remove 4 screws which x the electrical box.
4 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 xing 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ttingwiththepartitionplate. 
(InserttheradiationnintotheU-notchonthepartitionplateandplacethen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
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 n) in
front of the partition plate.
(Refer to the original position)
Electrical box (radiation n)
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
Partition Plate
U-shaped Hole
Partition plate
U-shapped hole