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31-5000573 Rev. 2 17
ENGLISH
INSTALLATION INSTRUCTIONS
Pipe Specification
1. Pipe “A” diameter (between indoor and branch pipe) (depends on indoor pipe)
Indoor kbtu/h Gas pipe in(mm) Liquid pipe in(mm)
5 3/8(9.52) 1/4(6.35)
7~18 1/2(12.7) 1/4(6.35)
24~54 5/8(15.88) 3/8(9.52)
72 1-1/8(28.58) 3/8(9.52)
96 1-1/8(28.58) 1-1/8(28.58)
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).
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The first branch pipe
Outdoor gather pipe
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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).
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