3-WAY SYSTEM
Outdoor Unit Repair Procedures
2
- 40
2
12. Replacing 4-way valve
12-2. When the replacement is not available from the right side of the unit
(1)
Follow the instructions of "10. Compressor" and remove the constant-speed compressor 2.
(2)
Connect the manifold gauge to the high and low-pressure outlet ports at the outdoor unit where the 4-way
valve will be replaced. Connect the manifold gauge to a nitrogen cylinder and perform nitrogen gas replace-
ment.
(3)
Prepare the brazing kit to disconnect the brazed parts (4 locations).
Protect the check valves as shown in the figure 34.
(4)
After replacing the 4-way valve, follow the instructionsin "10. Compressor", and reinstall the removed con-
stant-speed compressor 2 in the outdoor unit.
CAUTION
4-way valve
Check valve
Brazed parts (4 locations)
Fig. 34
SM830188-00̲3WAY.indb 40
SM830188-00̲3WAY.indb 40
2011/03/01 11:56:00
2011/03/01 11:56:00