Panasonic CS-A9DKD / CU-A9DKD [59/88] Re air purging re installation

11.1.3. Re-air purging (Re-installation)

1. Confirm that both the 2-way and 3-way valves are set to

the closed position.

2. Connect the charge set and a charging cylinder to the

service port of the 3-way valve.

• Leave the valve on the charging cylinder closed.

3. Air purging.

• Open the valves on the charging cylinder and the

charge set. Purge the air by loosening the flare nut on

the 2-way valve approximately 45° for 3 seconds then

closing it for 1 minute; repeat 3 times.

• After purging the air, use a torque wrench to tighten the

flare nut on the 2-way valve.

4. Check for gas leakage.

• Check the flare connections for gas leakage.

5. Discharge the refrigerant.

• Close the valve on the charging cylinder and discharge

the refrigerant until the gauge indicates 3 to 5 kg/cm

(0.3 to 0.5 MPa)

6. Disconnect the charge set and the charging cylinder,

and set the 2-way and 3-way valves to the open

position.

• Be sure to use a hexagonal wrench to operate the valve

stems.

7. Mount the valve stem nuts and the service port cap.

• Be sure to use a torque wrench to tighten the service

port cap to a torque 1.8 kg.m (18 N.m).

• Be sure to check for gas leakage.

Procedure:

CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /