Removing 4-Way Valve Coil; Removing Electronic Expansion Valve Coil - Hitachi UTOPIA RAS-4HVRP2E Service Manual

9 Servicing
RAS-(4-6)H(V)(R/N)(C/P)2E

9.3.9 Removing 4-way valve coil

1 Remove the service cover, the bottom service cover,
the rear cover and the upper cover following
Removing service cover",
service cover and rear cover"
upper cover".
2 Disconnect the connector on the control PCB of the
electrical box.
- PCN100: RAS-(4-6)
HV(R/N)(C/P)2E
- PCN6: RAS-(4-6)
H(R/N)(C/P)2E
3 Remove 1 fixing screw -2- to remove the reversing
valve coil -1-.
4 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.

9.3.10 Removing electronic expansion valve coil

1 Disassembly the service cover according to the item "9.3.1 Removing service cover".
2 Disassembly the rear cover according to the item "9.3.4 Removing bottom service cover and rear cover".
3 Disconnect the CN5A connector -1- on the control PCB1 of the electrical box.
4 Cut the necessary plastic ties to remove the expansion valve coil wire.
5 Hold the coil -2- of the expansion valve -3- and pull out upward.
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N O T E
It is easier to disassembly the expansion valve coil if it is rotated while pulling it upward.
6 Disassembly the expansion valve coil -2- with his wire and install the new one.
7 Assembly the new expansion valve coil -2- by inserting the expansion valve -3- inside.
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N O T E
• The expansion valve coil is equipped with a lock mechanism.
• Do not apply an excessive force to the coil when pressing it into the slot. Otherwise, it may cause damage to the piping or deform the
coil bracket avoiding a properly fixation.
8 Rotate the expansion valve coil -2- until the sound of locking is heard.
9 Connect the CN5A connector -1- on the control PCB1 of the electrical box.
10 Fix the expansion valve coil wire with plastic ties as it was originally.
195 SMGB0136 rev.0 - 07/2021
"9.3.1
"9.3.4 Removing bottom
and "9.3.3 Removing
1
2
3
1
2
9