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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).
CAUTION
2
(4)
After replacing the 4-way valve, follow the instructions in "10. Compressor", and reinstall the removed con-
stant-speed compressor 2 in the outdoor unit.
Protect the check valves as shown in the figure 36.
Brazed parts
(4 locations)
Fig. 36
2 - 40
W-2WAY ECO-i SYSTEM
Outdoor Unit Repair Procedures
Check valve
4-way valve
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