77
3. Pipe "c" diameter (between VP and branch pipe) (depends on VP pipe)
VP Suction gas pipe (mm) HP gas pipe (mm) Liquid pipe (mm)
112B Ø15.88 Ø12.7 Ø9.52
180B Ø15.88 Ø15.88 Ø9.52
280B Ø22.22 Ø19.05 Ø9.52
4. Pipe "d" diameter (between VP branch pipes)
Total indoor capacity after the branch pipe
(kW)
Suction gas pipe
(mm)
HP gas pipe
(mm)
Liquid pipe
(mm)
X<16.8kW Ø15.88 Ø12.7 Ø9.52
16.8kW≤X<22.4kW Ø19.05 Ø15.88 Ø9.52
22.4kW≤X<33.5kW Ø22.22 Ø19.05 Ø9.52
33.5kW≤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
5. Pipe "e" diameter (main pipe, between outdoor gather pipe and the rst branch pipe)
Outdoor
capacity (HP)
Outdoor
capacity (kW)
Main pipe Enlarged main pipe
Suction gas
pipe(mm)
HP gas
pipe(mm)
Liquid
pipe(mm)
Suction gas
pipe(mm)
HP gas
pipe(mm)
Liquid
pipe(mm)
8 22.4 Ø19.05 Ø19.05 Ø9.52 Ø22.22 Ø22.22 Ø12.70
10 28.0 Ø22.22 Ø19.05 Ø9.52 Ø25.40 Ø22.22 Ø12.70
12 33.5 Ø25.40 Ø22.22 Ø12.70 Ø28.58 Ø25.40 Ø15.88
14 40.0 Ø25.40 Ø22.22 Ø12.70 Ø28.58 Ø25.40 Ø15.88
16 45.0 Ø28.58 Ø25.40 Ø12.70 Ø31.80 Ø28.58 Ø15.88
18 50.4 Ø28.58 Ø25.40 Ø15.88 Ø31.80 Ø28.58 Ø19.05
20 56.0 Ø28.58 Ø25.40 Ø15.88 Ø31.80 Ø28.58 Ø19.05
22 61.5 Ø28.58 Ø25.40 Ø15.88 Ø31.80 Ø28.58 Ø19.05
24 68.0 Ø28.58 Ø25.40 Ø15.88 Ø31.80 Ø28.58 Ø19.05
26 73.5 Ø28.58 Ø25.40 Ø15.88 Ø31.80 Ø28.58 Ø19.05
28 80.0 Ø28.58 Ø25.40 Ø15.88 Ø31.80 Ø28.58 Ø19.05
30 85.0 Ø31.80 Ø28.58 Ø19.05 Ø34.90 Ø31.80 Ø22.22
32 90.0 Ø31.80 Ø28.58 Ø19.05 Ø34.90 Ø31.80 Ø22.22
34 95.4 Ø31.80 Ø28.58 Ø19.05 Ø34.90 Ø31.80 Ø22.22
36 100.8 Ø38.10 Ø34.90 Ø19.05 Ø41.30 Ø38.10 Ø22.22
38 106.4 Ø38.10 Ø34.90 Ø19.05 Ø41.30 Ø38.10 Ø22.22
40 112.0 Ø38.10 Ø34.90 Ø19.05 Ø41.30 Ø38.10 Ø22.22
42 117.5 Ø38.10 Ø34.90 Ø19.05 Ø41.30 Ø38.10 Ø22.22
44 123.0 Ø38.10 Ø34.90 Ø19.05 Ø41.30 Ø38.10 Ø22.22
46 130.0 Ø38.10 Ø34.90 Ø19.05 Ø41.30 Ø38.10 Ø22.22
48 135.0 Ø38.10 Ø34.90 Ø19.05 Ø41.30 Ø38.10 Ø22.22
50 140.4 Ø38.10 Ø34.90 Ø19.05 Ø41.30 Ø38.10 Ø22.22
52 145.8 Ø38.10 Ø34.90 Ø19.05 Ø41.30 Ø38.10 Ø22.22
54 151.2 Ø38.10 Ø34.90 Ø19.05 Ø41.30 Ø38.10 Ø22.22
56 156.8 Ø38.10 Ø34.90 Ø19.05 Ø41.30 Ø38.10 Ø22.22
58 162.4 Ø41.30 Ø38.10 Ø19.05 Ø44.50 Ø41.30 Ø22.22
60 168.0 Ø41.30 Ø38.10 Ø19.05 Ø44.50 Ø41.30 Ø22.22