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➲ Refrigerant pipe diameter from outdoor unit to first branch. (A, E, F, G)
Upward Outdoor
unit
total capacity
kW
Liquid pipe(mm)
23
29
35
41
* If the step up size is not available, you can not select the next higher size available.
Standard Pipe Diameter
Gas pipe(mm)
Ø 9.52
Ø 19.05
Ø 9.52
Ø 22.2
Ø 12.7
Ø 22.2
Ø 12.7
Ø 25.4
Refrigerant piping system
Increased Pipe Diameter
When pipe length is 90m or more from
ODU to 1st branch
Liquid pipe(mm)
Gas pipe(mm)
Ø 12.7
Ø 12.7
Ø 15.88
Ø 15.88
Installation Manual 35
Ø 22.2
Ø 22.2
Ø 25.4
Ø 28.58
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