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

9 Servicing
RAS-(4-6)H(V)(R/N)(C/P)2E
SMGB0136 rev.0 - 07/2021
195
9
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 “9.3.1
Removingservicecover”, “9.3.4Removingbottom
servicecoverandrearcover” and “9.3.3Removing
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 xing screw -2- to remove the reversing
valve coil -1-.
4 When reassembling, perform the procedure in the
reverse way of removing.
NOTE
Fixthewiresbyplasticbandstotheoriginalposition.
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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.
? NOTE
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.
? NOTE
• 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xation.
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.
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10 Fix the expansion valve coil wire with plastic ties as it was originally.