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INSTALLATION INSTRUCTIONS
Pipe Specification
a
a
1. Pipe "A" diameter (between indoor and branch pipe) (depends on indoor pipe)
Indoor kbtu/h
5
7~18
24~54
72
96
NOTES:
As stands for high wall indoor units:
• AS072, AS092 gas pipe / liquid pipe: Ø1/2(12.7mm) / Ø1/4(6.35mm).
• AS182 gas pipe / liquid pipe: Ø5/8(15.88mm) / Ø3/8(9.52mm).
Ø3/8(9.52mm).
When18kbtu/h (5.3kW) < rated refrigerating < 57.3kbtu/h(16.8KW), change specifications of gas pipe / liquid
pipe to Ø3/4(19.05mm) / Ø3/8(9.52mm).
When rated refrigerating < 57.3kbtu/h(16.8KW), change specification of liquid pipe to Ø1/2(12.7mm).
31-5000573 Rev. 2
b
d
d
c
VP4
VP4
b
a a a a
a a a
a
a
Gas pipe in(mm)
3/8(9.52)
1/2(12.7)
5/8(15.88)
1-1/8(28.58)
1-1/8(28.58)
Outdoor gather pipe
g
g
g
f
f
d
d
d
c
c
d
VP1
VP1
VP1
a
a
b
a
Liquid pipe in(mm)
1/4(6.35)
1/4(6.35)
3/8(9.52)
3/8(9.52)
1-1/8(28.58)
e
The first branch pipe
a
a
a
17
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