Samsung DVM S WATER-GEO - Page 20

ENGLISH-20
Refrigerant pipe installation
Selecting refrigerant pipe
Increase the
main pipe size
Y-joint
 Install the refrigerant pipe according to main pipe size of each outdoor unit capacity.
 When the pipe length (including elbow) between the outdoor unit and the farthest indoor unit exceeds 90m, the size of
the pipe (main pipe) connecting the outdoor unit to the rst branch joint must be increased by one grade.
 For HR System, when the pipe length (including elbow) between an outdoor unit and the farthest indoor unit exceeds 90
m, you must increase the size of the liquid pipe by one grade among the pipes(main pipe) which connects between the
outdoor unit to the rst branch joint
H/P
(A)
(B)
22.4 kW 22.4 kW
(D)
(E)
(C)
(3)
(2)
(1)
56.0 kW Ex.) 100.8 kW
Outdoor unit
capacity (kW)
No.
Pipe size (mm)
Liquid pipe Gas pipe
22.4 (1) 9.52 19.05
44.8 (2) 12.70 28.58
100.8 (3) 19.05 41.28
Size of the pipe connected to the outdoor unit (A)
Select the size of the pipe according to the below table.
Outdoor unit capacity (kW)
(Cooling)
Maximum pipe length within 90m Maximum pipe length over 90m
Liquid pipe (mm) Gas pipe (mm) Liquid pipe (mm) Gas pipe (mm)
22.4kW
Ø 9.52
Ø 19.05
Ø 12.70
Ø 22.22
28.0kW Ø 22.22 Ø 25.40
note1)
33.6kW
Ø 12.70
Ø 28.58
Ø 15.88 Ø 28.58
44.8kW
50.4kW
Ø 15.88 Ø 19.05 Ø 31.75
note2)
56.0kW
61.6kW
67.2kW