Sanyo CHDXR07263, CHDXR09663, CHDX09663, CHDX07263 service manual Replacing 4-way Valve

12. Replacing 4-way Valve

W-2WAY ECO-i SYSTEM Outdoor Unit Repair Procedures

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 replacement.

(3)Prepare the brazing kit to disconnect the brazed parts (4 locations).

CAUTION

Protect the check valves as shown in the figure 31.

Check valve

2

4-way valve

Brazed parts (4 locations)

Fig. 31

(4)After replacing the 4-way valve, follow the instructionsin “10. Compressor”, and reinstall the removed constant- speed compressor 2 in the outdoor unit.

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