Removing Electronic Expansion Valve Coil - Hitachi RCI-1.0FSR Service Manual

7 Servicing
RCI-(1.0-6.0)FSR - 4-way cassette

7.1.11 Removing electronic expansion valve coil

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C A U T I O N
TURN OFF all power source switches.
1 Remove the air panel according to the item "7.1.3 Removing optional air
2 Remove the bell-mouth according to the item "7.1.4 Removing turbo fan and fan
3 Remove the drain pan according to the item "7.1.6 Removing drain
4 Remove the partition plate according to the item "7.1.10 Removing thermistors for liquid pipe and gas
Fixing plate
for thermistor
Thermistor
for gas pipe
Expansion valve coil
5 Cut the plastic band fixing lead wires (for 2 pipe thermistors and expansion valve).
6 Remove the hooks of the expansion valve coil from the projection of the expansion valve body by a few turn of
expansion valve coil. Pull up and remove the expansion valve coil. At this time, pay attention not to twist the pipes.
7 Insert the new expansion valve coil for replacement to the expansion valve body. When inserting, fix the expansion
valve coil to catch the projections onto the hooks.
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N O T E
• The hooks are located each 90º, and the projections are located each 180º.
• The hooks shall catch onto the projections completely though the rotation direction does not affect to the operation. If the hooks do
not completely catch onto the projections, it may cause malfunction of expansion valve coil.
8 If the replacement work is completed, fix the wire for expansion valve near the expansion valve coil by plastic
band. At this time, fix the lead wires for expansion valve to face the edge downward. After fixing the lead wires for
expansion valve, fix again lead wires (for 2 pipe thermistors and the expansion valve) together by the plastic band.
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N O T E
When reassembling, securely fix lead wires (for fan motor, 2 pipe thermistors and expansion valve) together by the cord clamp
attaching at the partition plate.
190 SMGB0137 rev.0 - 05/2021
Wire for
expansion valve
Expansion valve
Liquid pipe
Plastic band
Thermistor for liquid pipe
The rotation direction does not affect to the operation.
(However, pay attention not to touch the pipe, plate and drain pan.)
Hook
Installation of drive part
Expansion valve
body
Projection
panel".
motor".
pan".
Plastic band
Fix the lead wires for
expansion valve by
plastic band to face the
edge downward
pipe".