Samsung DVM S VRF - Page 143

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10. Installation
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
Over 15.0kW ~ 22.4kW and below Ø 19.05 Ø 22.22
Over 22.4kW ~ 28.1kW and below Ø 22.22 Ø 25.40
note1)
Over 28.1kW ~ 40.0kW and below
Ø 12.70
Ø 28.58
Ø 15.88
Ø 28.58
Over 40.0kW ~ 45.0kW and below
Ø 31.75
note2)
Over 45.0kW ~ 63.3kW and below
Ø 15.88 Ø 19.05
Over 63.3kW ~ 70.3kW and below
Ø 34.92 Ø 38.10
note3)
Over 70.3kW ~ 98.4kW and below
Ø 19.05 Ø 22.22Over 98.4kW ~ 135.2kW and below
Ø 41.28
Ø 41.28
Over 135.2kW ~ 169.0kW and below
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
7.1kW ~ 16.0kW and below Ø 9.52 Ø 15.88
20.0kW ~ 23.0kW and below Ø 9.52 Ø 19.05
Over 23.0kW Ø 9.52 Ø 22.22