Selection of Refrigerant Piping
30
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
ENGLISH
Outdoor unit
Gas pipe
Main pipe
Liquid pipe
Branching
pipe
Branching
pipe
Indoor unit
No.
Piping parts
Name
Selection of pipe size
①
Outdoor unit
↓
1st branching section
Main pipe
Size of main pipe
②
Branching section
↓
Branching section
Branching pipe
Pipe size of between branching sections
③
Branching section
↓
Indoor unit
Indoor unit
connecting pipe
Connecting pipe size of indoor unit
Outdoor unit
capacity[HP]
Liquid pipe
[mm(inch)]
Gas pipe
[mm(inch)]
2.5
Ø9.52(3/8)
Ø15.88(5/8)
3
Ø9.52(3/8)
Ø15.88(5/8)
4
Ø9.52(3/8)
Ø15.88(5/8)
5
Ø9.52(3/8)
Ø15.88(5/8)
6
Ø9.52(3/8)
Ø19.05(7/8))
Indoor unit
capacity[kW(Btu/h)]
Liquid pipe
[mm(inch)]
Gas pipe
[mm(inch)]
≤
5.6(19,100)
Ø6.35(1/4)
Ø12.7(1/2)
< 16.0(54,600)
Ø9.52(3/8)
Ø15.88(5/8)
< 22.4(76,400)
Ø9.52(3/8)
Ø19.05(3/4)
< 36.4(124,200)
Ø9.52(3/8)
Ø22.2(7/8)
Indoor unit
capacity[kW(Btu/h)]
Liquid pipe
[mm(inch)]
Gas pipe
[mm(inch)]
≤
5.6(19,100)
Ø6.35(1/4)
Ø12.7(1/2)
< 16.0(54,600)
Ø9.52(3/8)
Ø15.88(5/8)
≤
22.4(76,400)
Ø9.52(3/8)
Ø19.05(3/4)
≤
28.0(95,900)
Ø9.52(3/8)
Ø22.2(7/8)
1,MFL67798026,영영 19. 3. 14. 영영 4:48 Page 30