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W-2WAY ECO-i SYSTEM
Outdoor Unit Repair Procedures
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 36.
(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.
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