Johnson Controls HVWHP072B32S - Removing Expansion Valve Coil (MV1,MV3,MV4, MVB)

SM-18006
4-31
MAINTENANCE
4.1.12.1 Removing Expansion Valve Coil (MV1,MV3,MV4, MVB)
(1) Remove the service cover and front cover according to Section 4.1.1 “Removing Service Cover and
Front Cover”.
(2) Remove the upper cover according to Section 4.1.3 “Removing Upper Cover”.
(3) Turntheexpansionvalvecoilinacounterclockwisedirectionasshowninthegurebelow.
Removetheexpansionvalvecoilbracketfromtheexpansionvalveslot.Then,pullthecoilupward.
• Payattentiontothethermistorwiringwhenremovingtheexpansionvalvecoils.
NOTE:
Makesuretoremovethecoilbracketfromthecoilslotbeforepullingthecoilout.Ifnot,yourhandmay
hitagainstthepiping.Followtheaboveprocedurecarefullytoavoidanyinjuries.
TURN OFF all POWER supply switches.
Tool Pliers
Coil Bracket
Coil Bracket
Expansion Valve Coil
Tu
rn the coil and remove the coil bracket
from the projection.
Expansion Valve Body
Expansion Valve Coil
Expansion Valve Body
MV1, MV3, MV4
MVB