Installation Manual 27
ENGLISH
Longest pipe length
Equivalent pipe length
A+B+C+D+e
≤
150m(492ft)(200m**(656ft)**)
*A+B+C+D+e
≤
175m(574ft) (225m(738ft)**)
Longest pipe length after 1st branch
B+C+D+e
≤
40m(131ft) 90m(295ft)**)
Difference in height(Outdoor Unit
↔
Indoor Unit)
H
≤
100m(328ft)
Difference in height (Indoor Unit
↔
Indoor Unit)
h
≤
15m(49ft)
Difference in height (Outdoor Unit
↔
Outdoor Unit)
h1
≤
5m(16ft)
L
l
H
h
h1
➲
Refrigerant pipe diameter from branch to branch (B,C,D)
➲
Total pipe length = A+B+C+D+a+b+c+d+e
≤
1,000m(3,281 ft)
• * : Assume equivalent piping length of Y branch to be 0.5m(1.6ft), that of header to be 1m(3.3ft), calculation
purpose.
• ** : To apply Conditional Application
Downward Indoor Unit total capacity
[kW(Btu/h)]
<22.4(76,400)
Ø9.52(3/8)
Ø19.05(3/4)
< 33(112,600)
Ø9.52(3/8)
Ø22.2(7/8)
< 47(160,400)
Ø12.7(1/2)
Ø28.58(1-1/8)
< 71(242,300)
Ø15.88(5/8)
Ø28.58(1-1/8)
< 104(354,900)
Ø19.05(3/4)
Ø34.9(1-3/8)
104(354,900)
≤
Ø19.05(3/4)
Ø41.3(1-5/8)
Liquid pipe
[mm(inch)]
Gas pipe
[mm(inch)]
Upward Outdoor Unit
total capacity [HP]
8
Ø9.52(3/8)
Ø19.05(3/4)
10
Ø9.52(3/8)
Ø22.2(7/8)
12~16
Ø12.7(1/2)
Ø28.58(1-1/8)
18~22
Ø15.88(5/8)
Ø28.58(1-1/8)
24
Ø15.88(5/8)
Ø34.9(1-3/8)
26~34
Ø19.05(3/4)
Ø34.9(1-3/8)
36 ~ 48
Ø19.05(3/4)
Ø41.3(1 5/8)
Liquid pipe
[mm(inch)]
Gas pipe
[mm(inch)]
Upward Outdoor Unit
total capacity [HP]
20, 22, 24
Ø15.88(5/8)
Ø28.58(1-1/8)
26~34
Ø19.05(3/4)
Ø34.9(1-3/8)
Liquid pipe
[mm(inch)]
Gas pipe
[mm(inch)]
Содержание ARUB290DT2
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