Mitsubishi Electric PUHZ-SW50VHA Service Manual download pdf (Page 38)

Main body

Lead wire

Stopper

Coil

(3) How to attach and detach the coil of linear expansion valve

Linear expansion valve is separable into the main body and the coil as shown in the diagram below.

Hold the lower part of the main body (shown as A) firmly so that

the main body does not move and detach the coil by pulling it

upward.

Be sure to detach the coil holding main body firmly. Otherwise

pipes can bend due to pressure.

Be sure to attach the

stopper to pipe B.

Hold the lower part of the main body (shown as A) firmly so that

the main body does not move and attach the coil by inserting it

downward into the main body. Then securely attach the coil stop-

per to pipe B. (At this time, be careful that stress is not added to

lead wire and main body is not wound by lead wire.) If the stop-

per is not firmly attached to pipe B, coil may be detached from

the main body and that can cause defective operation of linear

expansion valve.

To prevent piping stress, be sure to attach the coil holding the

main body of linear expansion valve firmly. Otherwise pipe may

break.

OCH525

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Mitsubishi Electric PUHZ-SW50VHA Service Manual Page 38