Samsung AM MXVAFC Series Installation Manual page 38

Refrigerant pipe installation
Selecting refrigerant pipe
Increase the main
pipe size
f Install the refrigerant pipe according to main pipe size of each outdoor unit capacity . f
f When the pipe length (including elbow) between an outdoor unit and the farthest indoor unit exceeds 90m (295 . 2 8ft), f
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 . 7 0 (1/2)
(2) Ø 19 . 0 5 (3/4)
(3) Ø 19 . 0 5 (3/4)
Gas pipe
Ø 28 . 5 8 (1 1/8)
Ø 34 . 9 2 (1 3/8)
Ø 41 . 2 8 (1 5/8)