Gree R410A Manual page 48

Photovoltaic Direct-driven VRF
for North America
Total capacity of downstream indoor units C (Btu/h)
19000 ＜ C ≤ 48500
48500 ＜ C ≤ 75000
6.5 Dimension of Pipe between Indoor Branch and IDU
Dimension of pipe between indoor branch and IDU should be consistent with the dimension of indoor pipe.
Rated capacity of IDU C
9600 ＜ C ≤ 17000
17000 ＜ C ≤ 48000
48000 ＜ C ≤ 55000
55000 ＜ C ≤ 96000
NOTICE! If the distance between IDU and its nearest branch is over 10m(33feet), then the
liquid pipe of IDU (rated capacity ≤17000Btu/h) shall be enlarged.
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C ≤ 19000
Indoor branches
(Btu/h)
C ≤ 9600
Pipe between
indoor branches
ODU
IDU
Gas pipe(mm/inch)
Φ12.7(1/2)
Φ15.9(5/8)
Φ19.05(3/4)
ODU
Pipe between indoor branch and IDU
IDU
Gas pipe(mm/inch)
Φ9.52(3/8)
Φ12.7(1/2)
Φ15.9(5/8)
Φ19.05(3/4)
Φ22.2(7/8)
Liquid pipe(mm/inch)
Φ6.35(1/4)
Φ9.52(3/8)
Φ9.52(3/8)
Liquid pipe(mm/inch)
Φ6.35(1/4)
Φ6.35(1/4)
Φ9.52(3/8)
Φ9.52(3/8)
Φ9.52(3/8)