LG ARUN096BT2 Installation Manual - Page 33

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ENGLISH Refrigerant piping installation WARNING When the equivalent length between the outdoor unit and a indoor unit is 90 m(295 ft) or more, the size of main pipes (Liquid pipe and Gas pipe) must be increased one grade. Gas pipe 8HP 19.05(3/4 inch) ¡ Ø22.2(7/8 inch) 10HP 22.2(7/8 inch) ¡ Ø25.4(1 inch) 12, 14HP 28.58(1-1/8 inch) ¡ Not increased 16, 18, 20, 22HP ........Ø28.58(1-1/8 inch) ¡ Ø31.8(1-1/4 inch) 24HP 34.9(1-3/8 inch) ¡ Not increased 26, 28, 30, 32HP .........Ø34.9(1-3/8) ¡ Ø38.1(1-1/2 inch) Liquid pipe 8, 10HP 9.52(3/8 inch) ¡ Ø12.7(1/2 inch) 12, 14, 16HP 12.7(1/2 inch) ¡ Ø15.88(5/8 inch) 18, 20, 22, 24HP .........Ø15.88(5/8 inch) ¡ Ø19.05(3/4 inch) 26, 28, 30, 32 19.05(3/4 inch) ¡ Ø22.2(7/8 inch) 7.1.5 Indoor Unit Connection ➲ Indoor Unit connecting pipe from branch (a,b,c,d,e,f) Indoor Unit capacity [kW(Btu/h)] ≤ 5.6(19,100) < 16.0(54,600) < 22.4(76,400) Liquid pipe [mm(inch)] Ø6.35(1/4) Ø9.52(3/8) Ø9.52(3/8) Gas pipe [mm(inch)] Ø12.7(1/2) Ø15.88(5/8) Ø19.05(3/4) Installation Manual 33

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Installation Manual
33
ENGLISH
Refrigerant piping installation
WARNING
When the equivalent length between the outdoor unit and a indoor unit is 90 m(295 ft) or more, the size of
main pipes (Liquid pipe and Gas pipe) must be increased one grade.
7.1.5 Indoor Unit Connection
Indoor Unit connecting pipe from branch (a,b,c,d,e,f)
Gas pipe
8HP
.............................
Ø19.05(3/4 inch)
→
Ø22.2(7/8 inch)
10HP
. ..........................
Ø22.2(7/8 inch)
→
Ø25.4(1 inch)
12, 14HP
......................
Ø28.58(1-1/8 inch)
→
Not increased
16, 18, 20, 22HP
........
Ø28.58(1-1/8 inch)
→
Ø31.8(1-1/4 inch)
24HP
...........................
Ø34.9(1-3/8 inch)
→
Not increased
26, 28, 30, 32HP
.........
Ø34.9(1-3/8)
→
Ø38.1(1-1/2 inch)
Liquid pipe
8, 10HP
.......................
Ø9.52(3/8 inch)
→
Ø12.7(1/2 inch)
12, 14, 16HP
. ..............
Ø12.7(1/2 inch)
→
Ø15.88(5/8 inch)
18, 20, 22, 24HP
.........
Ø15.88(5/8 inch)
→
Ø19.05(3/4 inch)
26, 28, 30, 32
..............
Ø19.05(3/4 inch)
→
Ø22.2(7/8 inch)
Indoor Unit capacity [kW(Btu/h)]
≤
5.6(19,100)
< 16.0(54,600)
< 22.4(76,400)
Ø6.35(1/4)
Ø9.52(3/8)
Ø9.52(3/8)
Ø12.7(1/2)
Ø15.88(5/8)
Ø19.05(3/4)
Liquid pipe
[mm(inch)]
Gas pipe
[mm(inch)]