Samsung DVM S AM220FXVAGR - Size of the Pipe between Branch Joints; Size of the Pipe between the Branch Joint and the Indoor Unit

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Refrigerant pipe installation
Size of the pipe between branch joints (B)
Select the pipe size according to the sum of indoor unit capacity which will be connected after the branch.
❇ However, if the size of the pipe between branch joints (B) is bigger than the size of the pipe connected to the outdoor
unit (A), apply the pipe size (A).
Indoor unit capacity (kW)
Branch pipe length within 45m Branch pipe length between 45~90m
Liquid pipe (mm) Gas pipe (mm) Liquid pipe (mm) Gas pipe (mm)
15.0kW and below
Ø 9.52
Ø 15.88
Ø 12.70
Ø 19.05
15.1 kW ~ 22.4 kW Ø 19.05 Ø 22.22
22.5 kW ~ 28.1 kW Ø 22.22 Ø 25.40
note1)
28.2 kW ~ 40.0 kW
Ø 12.70
Ø 28.58
Ø 15.88
Ø 28.58
40.1 kW ~ 45.0 kW
Ø 31.75
note2)
45.1 kW ~ 63.3 kW
Ø 15.88 Ø 19.05
63.4 kW ~ 70.3 kW
Ø 34.92 Ø 38.10
note3)
70.4 kW ~ 98.4 kW
Ø 19.05 Ø 22.2298.5 kW ~ 135.2 kW
Ø 41.28
Ø 41.28
135.3 kW ~ 169.0 kW
Ø 53.98
Over 169.0kW Ø 22.22 Ø 53.98 Ø 25.40
note1)
Note1) If Ø 25.40 pipe is not available on site, use Ø 28.58 pipe.
Note2) If Ø 31.75 pipe is not available on site, use Ø 34.92 pipe.
Note3) If Ø 38.10 pipe is not available on site, use Ø 41.28 pipe
Size of the pipe between the branch joint and the indoor unit
Make a selection according to outdoor unit capacity.
Indoor unit capacity (kW)
Pipe size (O.D. mm)
Liquid pipe Gas pipe
6.0kW and below Ø 6.35 Ø 12.70
6.1 kW ~ 16.0 kW Ø 9.52 Ø 15.88
16.1 kW ~ 23.0 kW Ø 9.52 Ø 19.05
Over 23.0kW Ø 9.52 Ø 22.22