7
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Connecting Pipe
Align the centre of joint in line with that of flare nut and
tighten the nut of connecting pipe with wrench. (Adjust
the torque by the same method of connecting pipe for
indoor unit.)
gas shut-off
valve
liquid shut-off valve
service port
gas connecting
pipe
liquid connecting pipe
valve nuts
service port cap
allen wrench
8
Do not vent refrigerant into the atmosphere: refrigerant ia a fluorinated greenhouse gas, covered
by Kyoto protocol, with a Global Warming Potential (GWP) = 1900(R410A)/1600(R407C)/1700(R22)
Notice:
Make the pipe connection between the indoor and
outdoor unit ensuring a tight connection
(finger
tightening initially to avoid risk of cross threading).
Remove both brass end caps from the two valves
on the outdoor unit – this will reveal an allen key
connection on both valves.
Turning anticlockwise – first half unscew the
small liquid port valve, you will hear refrigerant
gas passing through the small pipe – this will
occur for up to 6 seconds.
Repeat the above process for the larger gas valve
port.
Return to fully unscrew small liquid port valve.
Return to fully unscrew large gas port valve.
Replace the brass caps firmly.
You should not hear any further refrigerant
movement once these steps have been completed
(Apply soapy water to the piping joints to ensure no
gas bubbles exist i.e. No leaks should exist).
PUMP DOWN PROCEDURE / REFRIGERANT RECOVERY PROCEDURE:
Instructions for bleeding pre-sealed a/c unit
If any leak exists, close off allen key valves and re-tighten the leaking joint
Connecting
cable
Outdoor unit terminal
Please refer to our youtube channel which offers video advice and guidance for maintenance.
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