PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
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ENGLISH
Refrigerant pipe diameter from branch to branch (B,C)
Downward Indoor Unit
total capacity [kW(Btu/h)]
Liquid pipe [mm(inch)] Gas pipe [mm(inch)]
≤ 5.6(19 100)
Ø 6.35(1/4) Ø 12.7(1/2)
< 16.0(54 600) Ø 9.52(3/8) Ø 15.88(5/8)
≤ 22.4(76 400)
Ø 9.52(3/8) Ø 19.05(3/4)
< 36.4(124 200) Ø 9.52(3/8) Ø 22.2(7/8)
Refrigerant pipe diameter from outdoor unit to first branch. (A)
Outdoor unit
total capacity(HP)
Liquid pipe [mm(inch)] Gas pipe [mm(inch)]
4 Ø 9.52(3/8) Ø 15.88(5/8)
5 Ø 9.52(3/8) Ø 15.88(5/8)
6 Ø 9.52(3/8) Ø 19.05(3/4)
8 Ø 9.52(3/8) Ø 19.05(3/4)
10 Ø 9.52(3/8) Ø 22.2(7/8)
12 Ø 12.7(1/2) Ø 28.58(11/8)
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