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9
Refrigerant piping work
10.1 Select copper pipes for gas and liquid as informed in specific table(see the pipe table below)
10.2 For dust and moisture protection, before assembly of the pipe and its insulation,both end of the
pipe must be covered.
10.3 Avoid pipe bending as much as possible.If it is necessary, the bending radius must be more than
3cm. or 4cm.
10.4 The connection between an indoor unit and an outdoor unit.
Unscrew the flare nut for releasing pressure gas in the indoor unit.If there is no high pressure gas
blowing out, it is the signal of a leaking indoor unit.
Fit the flare nut to the liquid pipe.Flare the pipe's end with flare tool.
Tighten both flare nuts into gas pipe and liquid pipe at the indoor unit with two holding spanners.
Gas pipe and liquid pipe insulation depends upon
copper pipe size and the insulation thickness = 3/8"
GAS PIPE TABLE
MODEL
09K
12K
18K
LIQUID PIPE TABLE
MODEL
09K
12K
18K
Gas Pipe
Piping Tape
PIPE SIZE
3/8"
3/8"
1/2"
PIPE SIZE
1/4"
1/4"
1/4"
Connecting
Wire
Liquid
Pipe
Dia. Drain Pipe 1/2"
28
INSTALLATION INSTRUCTIONS
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