Hisense kf-34gwe User Guide
(7)Leak test all joints at the tubing (both indoor and outdoors) with liquid soap. Bubbles indicate a
leak. Be sure to wipe off the soap with a clean cloth.
(8)With the hex wrench, turn the wide tube service valve stem counter-clockwise to fully open the
leak. Be sure to wipe off the soap with a clean cloth.
(8)With the hex wrench, turn the wide tube service valve stem counter-clockwise to fully open the
valve.
(9)Turn the narrow tube service valve stem counter-clockwise to fully open the valve.
(10)Loosen the vacuum hose connected to the wide tube service port slightly to release the pressure.
(10)Loosen the vacuum hose connected to the wide tube service port slightly to release the pressure.
Then, remove the hose.
(11)Replace the bonnet and flare nut on the wide tube service port and fasten the flare nut securely
with an adjustable wrench or box wrench. Next, mount the valve cap and tighten it with a torque
wrench (the cap needs to be tightened with the torque of 200kg-cm). This process is very important
wrench (the cap needs to be tightened with the torque of 200kg-cm). This process is very important
to prevent gas from leaking from the system.
(12)Test run the air conditioner.
(13)While the air conditioner is running, apply liquid soap to check for any gas leaks around the
(13)While the air conditioner is running, apply liquid soap to check for any gas leaks around the
service valves or caps.
(14)If there is no leakage, stop the air conditioner.
(15)Wipe off the soap on the tubing.
This completes air purging with a vacuum pump and
the air conditioner is ready for actual operation.
(15)Wipe off the soap on the tubing.
This completes air purging with a vacuum pump and
the air conditioner is ready for actual operation.
Appendix: Installation
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