Service manual

35
Model No: AC-S10CK_S10HK
Version 1.0
1. AIR PURGING (INSTALLATION)
l Required tools: hexagonal wrench, adjustable wrench, torque wrenches, wrench
to hold the joints, and gas leak detector.
l The additional gas for air purging has been charged in the outdoor unit. However,
if the flare connections have not been done correctly and gas leaks, a gas cylin-
der and the charge set will be needed.
l The air in the indoor unit and in the piping must be purged. If air remains in the
refrigerant pipes, it will affect the compressor, reduce the cooling and heating
capacity, and could lead to a malfunction.
l Be sure to use a torque wrench to tighten the service port cap (after using the
service port), so that it prevents the gas leakage from the refrigeration cycle.
l Caution: Do not leak the gas in the air during air purging.
l Air purging procedure
F Recheck the piping connections.
F Open the valve spindle of the 2-way valve counter-clockwise proximately
90°°,wait 10 seconds, and then set it to closed position. Be sure to use a hex-
agonal wrench to operate the spindle.
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