• Y branch and header branch cannot be used after header branch.
Indoor Unit connecting pipe (a~k)
Indoor Unit capacity
[kW(Btu/h)]
Liquid pipe
[mm(inch)]
Gas pipe
[mm(inch)]
≤ 5.6(19,100) Ø6.35(1/4) Ø12.7(1/2)
< 16.0(54,600) Ø9.52(3/8) Ø15.88(5/8)
< 22.4(76,400) Ø9.52(3/8) Ø19.05(3/4)
≤ 28.0(95,900) Ø9.52(3/8) Ø22.2(7/8)
• Bending radius should be at least twice the diameter of the pipe.
• Bend pipe after 500mm or more from branch(or header).
• Do not bend U type. It may affect performance or result in noise. If U type bending is required, the R should be more than 200mm.
Installation of Outdoor Unit
4. Refrigerant Piping System
Installation
11
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