Johnson Controls CICM008B21S, Service Manual

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MAINTENANCE
4-14
SM-18003
(8) Prepare a replacement drive part for the expansion valve coil. To make sure that the driver position
has been adjusted, use a drive part specified as a service part.
NOTE:
1. Be careful that dust and foreign matter will not enter the connection portion during replacement.
The connection portion exposed due to replacement is the core of the expansion valve mechanism.
2. Do not damage the connection portion with tools, etc.
(9) Attach the replacement drive part to the expansion valve and align their shafts. Then attach the
locknut to the expansion valve.
(10) Tighten the locknut to some degree by hand and then completely with the wrench. The tightening
torque shall be 8.9 to 11.1 lbf · ft (12 to 15N · m).
NOTE:
Do not apply an excessive force to the expansion valve coil. The expansion valve coil is attached
with its eccentricity facing the opposite side of the pipe joint. The direction does not affect the valve’s
opening/closing action. Even if the position of the expansion valve coil is slightly misaligned after
replacement, no adjustment with tools will be needed.
TURN OFF all power source switches.
NOTE:
1. After replacement, attach the gas pipe thermistor and the liquid pipe thermistor and the expansion
valve coil in the reverse procedure. Attach butyl sheet to make sure that there is no clearance
between the thermistors and butyl sheets.
2. After replacement, check that the wires do not contact the runner.