Join The Connecting Pipe; Air Exhausting - Akai AUS-12H53R150P9 Instruction Manual

3. Join the connecting pipe

• Put some seal oil to cover the joint and the flare.
• Align the centre of joint in line with that of the flare and tighten the nut of the
connecting pipe with a wrench. (Adjust the torque by the same method of
connecting pipe for the indoor unit.)

4. Air exhausting

• Screw down the cap of both gas
shut-off valve and liquid shut-off
valve as well as the nut of service
port.
• Use an Allen key to turn the valve
cork of the liquid side 90˚ counter-
clockwise, and close it after 10
seconds. Use soapy water to check
the gas leakage especially at all
joints. If there is no gas leakage,
please turn the valve cork of the
liquid side at 90˚ counter-clockwise
again.
• Press the cork of service port at
the gas shut-off valve, 10 seconds
later, when you see a foggy gas
discharged, that means inner air has
exhausted out.
• Use an Allen key to turn the valve
cork of both the liquid shut-off valve
and gas shut-off valve counter-
clockwise until they are completely
open, then replace the valve caps
and tighten them.
NOTE:
Do not vent refrigerant into atmosphere: refrigerant is a fluorinated greenhouse gas,
covered by Kyoto protocol, with a Global Warming Potential (GWP) =1900(R410A)/16
00(R407C)/1700(R22).
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