9
Installation procedure
Pipe specification:
1. Pipe “a”diameter (between indoor and manifold pipe) (depends on indoor pipe)
Indoor (x100W)
22~28
36~56
71
Total indoor capacity after
the branch pipe (x100W)
Outdoor capacity(100W)
Hardness
Softness
Half-hardness
Outer diameter (mm)
Min. thickness (mm)
100
15.88
9.52
150
19.05
9.52
180
19.05
6.35
0.8
0.8
1.0
1.0
1.0
1.1
1.2
1.4
9.52
12.7
15.88
19.05
22.22
25.24
28.58
9.52
Gas pipe (mm) Liquid pipe (mm)
Gas pipe (mm)
15.88
9.52
19.05
9.52
Liquid pipe (mm)
<112
112≤X<234
Gas pipe (mm)
9.52
12.7
15.88
Liquid pipe (mm)
6.35
6.35
9.52
Note:
YVHVXH022WAR--FX YVHVXH028WAR--FX gas pipe: *12.7mm
YVHVXH056WAR--FX gas pipe/ liquid pipe: *15.88mm/9.52mm
2. Pipe “b”diameter (between manifold pipe)
3. Pipe “c”diameter ( outdoor pipe diameter)
Note:
When the distance from outdoor to the longest indoor is over 30m, the main pipe should be the
enlarged diameter.
Copper pipe selection:
Note: If the copper pipe with outer diameter 19.05 is coil pipe, the thickness should be over 1.1.
