Hitachi RAS-4-HNCE - Opening Electrical Box (P Plate); Removing Reversing Valve Coil

10. Servicing
340
SMGB0079 rev.0 - 01/2013
10.3.1.9 Opening electrical box (P plate)
1 Remove the service cover following Removing service cover in this chapter.
2 Unplug all the connectors of the electrical box.
3 Remove 5 screws which x the electrical box and open the P plate turning counter clockwise approximately 90°.
• Check that the LED201 (red) on the inverter PCB (PCB2) is OFF.
Upper Cover
Power Plate
Fixing Screw
2 Fixing Screws
2 Fixing Screws
Upper cover
Power plate
Fixing screw
2 Fixing screws
2 Fixing screws
D A N G E R
• DONOTtouchelectricalcomponentswhiletheLED201(Red)isONtoavoidelectricalshock.Waituntilthe
LEDturnsoff.
10.3.1.10 Removing Reversing valve coil
1 Remove the service cover, the bottom service cover, the rear cover and the upper cover following Removing service
cover, Removing bottom service cover and rear cover and Removing upper cover.
2 Open the P plate turning counter clockwise approximately 90° following Opening electrical box (P plate).
• Check that the LED201 (red) on Inverter is OFF when the P plate is opened.
D A N G E R
DONOTtouchelectricalcomponentswhiletheLED201(Red)andLED1(Red)areONtoavoidelectricalshock.
WaituntiltheLEDturnoff.
3 Disconnect the PCN100 connector on the control PCB
of the electrical box.
4 Remove 1 xing screw to remove the reversing valve
coil.
Reversing Valve
Fixing Screw for
Reversing Valve
Reversing valve
Fixing screw for
Reversing valve
5 When reassembling, perform the procedure in the reverse way of removing.
N O T E
Fixthewiresbyplasticbandstotheoriginalposition.