Samsung DVM S Series Installation Manual page 37

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).
15.0 kW and below
15.1 kW ~ 22.4 kW
22.5 kW ~ 28.1 kW
28.2 kW ~ 33.6 kW
33.7 kW ~ 40.0 kW
40.1 kW ~ 45.0 kW
45.1 kW ~ 50.4 kW
50.5 kW ~ 63.3 kW
63.4 kW ~ 70.3 kW
70.4 kW ~ 98.4 kW
98.5 kW ~ 135.2 kW
135.3 kW ~ 169.0 kW
Over 169.0 kW
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)
6.0 kW and below
6.1kW~16.0kW
16.1kW~23.0kW
Over 23.0 kW
Pipe size (mm)
Low pressure
Liquid pipe
gas pipe
Ø 15.88
Ø 9.52 Ø 19.05
Ø 22.22
Ø 12.70
Ø 28.58
Ø 15.88
Ø 34.92
Ø 19.05
Ø 41.28
Ø 22.22 Ø 53.98
Branch pipe length between 45~90m
High pressure Liquid
gas pipe pipe(mm)
Ø 15.88
Ø 12.70
Ø 19.05
Ø 15.88
Ø 22.22
Ø 19.05
Ø 28.58
Ø 22.22
Ø 34.92
Ø 41.28 Ø 25.40 note1)
Pipe size (O.D. mm)
Liquid pipe
Ø 6.35
Ø 9.52
Ø 9.52
Ø 9.52
Low pressure High pressure
gas pipe(mm) gas pipe(mm)
Ø 19.05
Ø 15.88
Ø 22.22
note1)
Ø 25.40
Ø 19.05
Ø 28.58
Ø 22.22
note2)
Ø 31.75
Ø 28.58
note3)
Ø 38.10
Ø 41.28
Ø 34.92
Ø 53.98
Ø 41.28
Gas pipe
Ø 12.70
Ø 15.88
Ø 19.05
Ø 22.22
37