6
Pipe specification:
c
a
a
b
b
a
a
1. Pipe
“
a
”
diameter (between indoor and branch pipe) (depends on indoor pipe)
22~28
36~56
71
9.52*
6.35
12.7
6.35
15.88
9.52
Indoor (x
100W
)
Gas pipe
Liquid pipe
2. Pipe
“
b
”
diameter (between branch pipes)
<112
15.88
19.05
112
≤
X<234
9.52
Total indoor capacity
after the branch pipe
(x100W)
9.52
Gas pipe
Liquid pipe
Note:
When the distance from outdoor to the longest indoor is over 30m, the main pipe should be the
enlarged diameter.
3. Pipe
“
c
”
diameter ( outdoor pipe diameter)
Outdoor capacity(100W)
80
180
15.88
19.05
9.52
Gas pipe
Liquid pipe
9.52
Copper pipe selection:
Note: If the copper pipe with outer diameter 19.05 is coil pipe, the thickness should be over 1.1.
6.35
9.52
12.7
15.88
0.8
0.8
1.0
1.0
19.05
22.22
25.24
28.58
1.0
1.1
1.2
1.4
softness
Half-hardness
hardness
Outer diameter
Min. thickness
*HAV009's gas pipe is 12.7
150
19.05
9.52
Installation procedure
