11
Installation procedure
2. Pipe "b" diameter (between branch pipes)
3. Pipe "c" diameter (between VP and branch pipe) (depends on VP pipe)
4. Pipe "d" diameter (between VP branch pipes)
Note:
Adjust the diameter on field (changing pipe is needed)
When the latter indoor total capacity is less than 14.0kw, pipe b will use the specs as the pipe a.
Total indoor capacity after the branch pipe (kW)
Gas pipe (mm)
Liquid pipe (mm)
X<16.8kW
Ø15.88
Ø9.52
16.8kW≤X<22.4kW
Ø19.05
Ø9.52
22.4kW≤X<33.0kW
Ø22.22
Ø9.52
33.0kW≤X<47.0kW
Ø28.58
Ø12.7
47.0kW≤X<71.0kW
Ø28.58
Ø15.88
71.0kW≤X<101.0kW
Ø31.8
Ø19.05
≥101.0kW
Ø38.1
Ø19.05
VP capacity
Suction gas pipe (mm)
HP gas pipe (mm)
Liquid pipe (mm)
4HP
Ø15.88
Ø12.7
Ø9.52
6HP
Ø15.88
Ø15.88
Ø9.52
10HP
Ø22.22
Ø19.05
Ø9.52
1. Pipe "a" diameter (between indoor and branch pipe) (depends on indoor pipe)
Indoor (x100W)
Gas pipe (mm)
Liquid pipe (mm)
22~28
Ø9.52
Ø6.35
36~56
Ø12.7
Ø6.35
71~140
Ø15.88
Ø9.52
Note:
AS072 AS092 gas pipe: Ø12.7mm
AS182 gas pipe/ liquid pipe: Ø15.88mm/9.52mm
Total indoor capacity after the branch pipe
(KW)
Suction gas pipe
(mm)
HP gas pipe
(mm)
Liquid pipe
(mm)
X<11.2kW
Ø15.88
Ø12.7
Ø9.52
11.2kW≤X<16.8kW
Ø15.88
Ø15.88
Ø9.52
16.8kW≤X<22.4kW
Ø19.05
Ø15.88
Ø9.52
22.4kW≤X<33.0kW
Ø22.22
Ø19.05
Ø9.52
33.0kW≤X<47.0kW
Ø28.58
Ø25.4
Ø12.7
47.0kW≤X<71.0kW
Ø28.58
Ø25.4
Ø15.88
71.0kW≤X<101.0kW
Ø31.8
Ø28.58
Ø19.05
≥101.0kW
Ø38.1
Ø31.8
Ø19.05
