York IDM030B21E Series, Руководство по обслуживанию

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SM-16005-rev.2
4-9
MAINTENANCE
TURN OFF all POWER supply switches.
4.2.5 Removing Electronic Expansion Valve Coil
(1) Remove the electrical box cover according to Section 4.2.1 “Removing PCB”.
(2) Disconnect the connector for the expansion valve coil located on the PCB1. Then remove the wiring.
(3) Pull the service cover slightly forward according to Section 4.2.3 “Removing Condensate Pump”.
(4) Remove the detents of the expansion valve coil from the projection parts of the valve body by rotating
the valve coil. Pull up the valve coil and remove it. At this time, take care not to twist the pipes.
(5) Insert the new expansion valve coil into the expansion valve body. When inserting the valve coil,
secure the projection parts into the detents.
NOTE:
The detents are located 90
o
apart in a circle and the projections are located 180
o
apart in a circle.
Make sure to fit the projection parts into the detents. The rotation direction does not affect the
operation. If the valve coil is inserted incorrectly, it may cause malfunction of the valve coil.
(6) When the replacement is completed, secure the wire for the expansion valve coil near the valve coil
with a plastic band. At this time, secure the edge of lead wires for the expansion valve coil to face
down.
Phillips Screwdriver Tool
Projection
Detent
Expansion Valve Body
Expansion Valve Coil