Panasonic CS-C9BKNG Service Manual page 45

3. Check for gas leakage.
- Check the flare connection for gas leakage.
4. Purge the air from the system
- Set the 2-way valve to the open position and remove the cap
from the 3-way valve's service port.
- Using the hexagonal wrench to press the valve core pin,
discharge for three seconds and then wait for one minute. /
Repeat this three times.
5. Use torque wrench to tighten the service port cap to a torque of
1.8 kg.m. (18 N.m).
6. Set the 3-way valve to the opened position.
7. Mount the valve stem nuts to the 2-way and 3-way valves.
8. Check for gas leakage.
- At this time, especially check for gas leakage from the 2-way
and 3-way's stem nuts, and from the service port cap.
Caution
If gas leakage is discovered in step (3)
above, take the following measures:
If the leaks stop when the piping
connections are tightened further,
continue working from step (4).
If the gas leaks do not stop when the
connections are retightened, repair the
location of the leak, discharge all of the
gas through the service port, and then
recharge with the specified amount of gas
from a gas cylinder.
11.1.2. Pumping down (Re-installation)
45