Mitsubishi Electric PUHY-M200YNW-A1 Service Handbook page 341

[8-13 Parts Replacement Instructions ]
3. Replacing check valve (CV1) (S and L modules)
Follow the procedures below to remove check valve (CV1) located in the back of the four-way valve.
(1) Follow the steps (1) through (9A) under item 1. S, L-module under 8-12-3 Four-way Valve and Check Valve Replacement
Procedure to Create Access to Check Valve (CV1).
(2) Remove the braze from two areas on check valve (CV1).
The above step completes the check valve (CV1) replacement procedure. Re-place the solenoid valve, LEV assemby, and
pipe cover that were removed during maintenance work as they were.
86
- chapter 8
Remove the pipe cover near check valve (CV1).
*Save the cover for later use.
Check valve (CV1)
Check valve (CV1)
BS_08_E