LG MULTI V PLUS II ARUN Série Manuel D'installation page 28

Refrigerant piping installation
➲ Refrigerant pipe diameter from branch to branch (B,C,D)
Downward Indoor Unit total capacity
[kW(Btu/h)]
<22.4(76,400)
< 33(112,600)
< 47(160,400)
< 71(242,300)
< 104(354,900)
➲ Total pipe length = A+B+C+D+a+b+c+d+e ≤ 1,000m(3,281 ft)
Longest pipe length
L
A+B+C+D+e ≤ 150m(492ft)(200m**(656ft)**)
Longest pipe length after 1st branch
l
B+C+D+e ≤ 40m(131ft) 90m(295ft)**)
Difference in height(Outdoor Unit ↔ Indoor Unit)
H
H ≤ 100m(328ft)
Difference in height (Indoor Unit ↔ Indoor Unit)
h
h ≤15m(49ft)
Difference in height (Outdoor Unit ↔ Outdoor Unit)
h1
h1 ≤ 5m(16ft)
• * : 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
Upward Outdoor Unit
total capacity [HP]
8
10
12~16
18~22
24
26~32
28 Outdoor Unit
Liquid pipe
[mm(inch)]
Ø9.52(3/8)
Ø9.52(3/8)
Ø12.7(1/2)
Ø15.88(5/8)
Ø19.05(3/4)
Liquid pipe Gas pipe
[mm(inch)] [mm(inch)]
Ø9.52(3/8) Ø19.05(3/4)
Ø9.52(3/8) Ø22.2(7/8)
Ø12.7(1/2) Ø28.58(1-1/8)
Ø15.88(5/8) Ø28.58(1-1/8)
Ø15.88(5/8) Ø34.9(1-3/8)
Ø19.05(3/4) Ø34.9(1-3/8)
Gas pipe
[mm(inch)]
Ø19.05(3/4)
Ø22.2(7/8)
Ø28.58(1-1/8)
Ø28.58(1-1/8)
Ø34.9(1-3/8)
Equivalent pipe length
*A+B+C+D+e ≤ 175m(574ft) (225m(738ft)**)
Upward Outdoor Unit
total capacity [HP]
20, 22, 24
26, 28, 30, 32
Liquid pipe Gas pipe
[mm(inch)] [mm(inch)]
Ø15.88(5/8) Ø28.58(1-1/8)
Ø19.05(3/4) Ø34.9(1-3/8)