Hitachi RAS-(2-6)HVNP1(E), Руководство по обслуживанию

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10 Servicing
368
SMGB0087 rev.0 - 12/2013
10.3.9 Opening electrical box (P plate)
1
Remove the service cover following “10.3.1 Remo-
ving service cover” in this chapter.
2 Unplug all the connectors of the electrical box.
3 Remove 5 screws which fix the electrical box and
open the P plate turning counter clockwise approxi-
mately 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
10.3.10 Removing Reversing valve coil
1 Remove the service cover, the bottom service cover, the
rear cover and the upper cover following
“10.3.1 Removing
service cover” , “10.3.4 Removing bottom service cover and
rear cover” and “10.3.3 Removing upper cover” .
2 Open the P plate turning counter clockwise approximately
90° following
“10.3.9 Opening electrical box (P plate)” .
3 Check that the LED201 (red) on Inverter is OFF when the P
plate is opened.
4
Disconnect the PCN100 connector on the control PCB of
the electrical box.
5 Remove 1 fixing screw to remove the reversing valve coil.
6 When reassembling, perform the procedure in the reverse
way of removing.
Reversing Valve
Fixing Screw for
Reversing Valve
Reversing valve
Fixing screw for
Reversing valve
N O T E
Fix the wires by plastic bands to the original position.
10.3.11 Removing electronic expansion valve coil
1 Remove the service cover following “10.3.1 Removing
service cover” in this chapter.
2 Open the P plate turning counter clockwise approxi-
mately 90° following
“10.3.9 Opening electrical box (P
plate)” .
3 Check that the LED201 (red) on Inverter is OFF when
the P plate is opened. Disconnect the CN5A connector
on the control PCB of the electrical box.
4 Hold the coil of the expansion valve and pull out
upward.
It is easier to remove the expansion valve coil if it is
rotated while pulling it upward.
5 When reassembling after replacing the expansion valve
coil, perform the procedure in the reverse way of remo-
ving. The expansion valve coil is equipped with a lock
mechanism. After attaching the expansion valve coil,
rotate it until the sound of locking is heard.
N O T E
Fix the wires by plastic bands to the original position.
Expansion Valve Coil Release Lock
Pull the expansion
valve coil upward
with holding.
Hold the coil of the
expansion valve and
pull out upward
Expansion valve coil Release lock