Samsung DVM S AM MXVAFC Series Installation Manual page 38

Refrigerant pipe installation
Selecting refrigerant pipe
Increase the main
pipe size
Install the refrigerant pipe according to main pipe size of each outdoor unit capacity.
When the pipe length (including elbow) between an outdoor unit and the farthest indoor unit exceeds 90m (295.28ft),
you must increase the size of the pipe (main pipe) by one grade which connects between the outdoor unit to the first
branch joint.
C/O
33.6 kW 40.0 kW
(114.6 MBH) (136.5 MBH)
(1) (2)
(C)
(A)
(B)
38
First branch joint
61.6 kW
Ex.) 135.2 kW (461.3 MBH)
(210.2 MBH)
Capacity (kW)
33.6 kW
(D)
(114.6 MBH)
73.6 kW
(251.1 MBH)
(3)
135.2 kW
(E)
(461.3 MBH)
Pipe size [mm (inch)]
No.
Liquid pipe
(1) Ø 12.70 (1/2)
(2) Ø 19.05 (3/4)
(3) Ø 19.05 (3/4)
Gas pipe
Ø 28.58 (1 1/8)
Ø 34.92 (1 3/8)
Ø 41.28 (1 5/8)