68
Steps Procedure
2. Remove 4-way valve 
 
3. Replace the 4-way valve
4. Install the 4-way valve coil  
 
Reclaim all refrigerant charge in system.
Cut all line connections to 4-way valve and 
remove from unit.
.
① Place the new 4-way valve in the right place.
② Reweld the new 4-way valve with the pipeline.
① Replace the 4-way valve coil in place
② Tighten the screws with a screwdriver.