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Use frozen oil
Bend the pipe with thumb
Locate The Pipe
Drill a hole in the wall (suitable just for the size of the wall conduit,
90mm in general), then set on the fittings such as the wall conduit
and its cover.
Bind the connecting pipe and the cables together tightly with
binding tapes. Do not let air in, which will cause water leakage
by condensation.
Pass the bound connecting pipe through the wall conduit from
outside. Be careful of the pipe all ocation to do no damage to the
tubing.
Connect the pipes.
Then, open the stem of stop valves of the outdoor unit to make
the refrigerant pipe connecting the indoor unit with the outdoor
unit fluently flow.
Be sure of no leakage by checking it with leak detector or soap
water.
Cover the joint of the connecting pipe to the indoor unit with the
sound proof/insulating sheath (fittings), and bind it well with the
tapes to prevent leakage.
8. REFRIGERANT PIPE CONNECTION
Flaring
Cut a pipe with a pipe cutter.
Insert a flare nut into a pipe and flare the pipe.
lean
90
Fig.7-1
Fig.7-2
Make the ends
straight
Fig.7-3
crude burr
Fig.8-1
Table.8-1
Outside diameter
Fasten the nut
Put the connecting tubing at the proper position, wrench the
nuts with hands then fasten it with a wrench. (Refer to
Fig.8-3)
Too large torque will harm the bellmouthing and too small will
cause leakage. Please determine the torque according to
Table.8-2.
Table.8-2
Tubing size
14.2~17.2 N.m (144~176 kgf.cm)
32.7~39.9 N.m (333~407 kgf.cm)
49.5~60.3 N.m (504~616 kgf.cm)
61.8~75.4 N.m (630~770 kgf.cm)
Material and Size of the Pipes
Three length (3m,5m,10m) of pipes are available to purchase.
Table.8-3
Pipe Material
Copper Pipe for Air Conditioner
Gas side
Liquid side
Size(mm)
Gas side
Liquid side
The necessary filling amount of refrigerant
When the length of the one-way pipe is under 5m, the
quantity of filling fluorine will be subject to the nameplate.
When the length of the one-way pipe is over 5m, the quantity
to be added is as follows:
L: The length of the pipe
Please record the quantity added and store it carefully for
future maintenance.
Fig.8-2
A(mm)
Max
Min
8.7
8.3
12.4
12.0
15.8
15.4
19.0
18.6
Fig.8-3
Torque
installation manual
7
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