25
4. Pipe “d” diameter (between outdoor branch pipe)
5. Pipe “e” diameter (between outdoor and the outdoor branch pipe)
Total outdoor capacity before the branch pipe Liquid pipe(a,c) (mm)
~68.0kW
Ø15.88
Ø19.05
Ø28.58
Ø31.8
69.0~90.0kW
Gas pipe(b,d) (mm)
Copper pipe selection:
9.52
6.35
0.8
0.8
1.0
12.7
15.88
19.05
1.0
1.1
Pipe diameter (mm)
Thickness (mm)
Material
O type pipe: soft pipe
19.05
1.0
1.0
1.0
1.0
1.1
1.3
1.4
1.5
22.2
25.4
28.58
31.8
34.9
38.1
41.3
Pipe diameter (mm)
Thickness (mm)
Material
Hard pipe
Installation procedure
Model
Gas pipe
Liquid pipe
Oil pipe
Diameter
(mm)
Connecting
method
Diameter
(mm)
Connecting
method
Diameter
(mm)
Connecting
method
VV
WO-220
R
-01T32
Ø19.05
Flared
Ø9.52
Flared
(Pipe
adaptor)
Ø9.52
Flared
VV
WO-280
R
-01T32
Ø22.22
Flared
(Pipe
adaptor)
Ø9.52
Ø9.52
VV
WO-335
R
-01T32
Ø25.4
Ø12.7
Flared
Ø9.52
