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24 Outdoor Unit
Refrigerant piping installation
2 outdoor units
3 outdoor units
Ø31.8(1-1/4)>
>
>
Ø28.58(1-1/8)>
>
Ø28.58(1-1/8)
Ø19.05(3/4)>
>
Ø22.2(7/8)
Ø28.58(1-1/8)
Ø12.7(1/2)
Ø 9.52(3/8)
Ø12.7(1/2)
Ø19.05(3/4)>
>
Ø12.7(1/2)
Ø15.88(5/8)
Ø34.9(1-3/8)>
>
OD28.58(1-1/8)
Ø19.05(3/4)>
>
Ø19.05(3/4)>
>
Ø22.2(7/8)>
>
Ø22.2(7/8)>
>
OD34.9(1-3/8)>
>
>
>
Ø38.1(1-1/2)>
>
>
Ø15.88(5/8)>
>
>
OD19.05(3/4)>
>
Ø28.58(1-1/8)>
>
Ø19.05(3/4)>
>
Ø15.88(5/8)
Ø22.2(7/8)
Ø22.2(7/8)
Ø22.2(7/8)
OD22.2(7/8)
Ø15.88(5/8)
Ø19.05(3/4)>
>
OD12.7(1/2)>
>
>
Ø9.52(3/8)>
>
>
Ø22.2(7/8)>
>
>
OD19.05(3/4)>
>
>
>
Low Pressure Gas Pipe Liquid Pipe High Pressure Gas Pipe
Model!
!
ARCNB20!
!
[Unit:mm(inch)]>
>
[Unit:mm(inch)]>
>
Main pipe
Sub1 outdoor unit
Main outdoor unit
Ø12.7(1/2)
Ø9.52(3/8)
Ø12.7(1/2)
Ø12.7(1/2)
Ø15.88(5/8)
Ø19.05(3/4)
Ø12.7(1/2)
Ø19.05(3/4)
Ø12.7(1/2)
Ø15.88(5/8)
Ø22.2(7/8) Ø19.05(3/4)
Sub1 outdoor
gas pipe
Ø
31.8(1-1/4)
Ø
28.58(1-1/8)
Ø
28.58(1-1/8)
Ø
28.58(1-1/8)
Main pipe
Ø
34.9(1-3/8)>
>
Don't cut the pipe less
than 70mm
Blow nitrogen
while brazing>
>
Main outdoor
gas pipe
Ø38.1(1-1/2)
Ø34.9(1-3/8)
Ø34.9(1-3/8)
Ø28.58(1-1/8)
Ø28.58(1-1/8)
Ø41.3(16-3/5)
Don't cut the pipe less
than 70mm
Blow nitrogen
while brazing>
>
OD28.58>
>
Ø19.05(3/4)
Ø22.2(7/8)
Ø38.1(1-1/2)
OD34.9(1-3/8)
Ø15.88(5/8)>
>
>
OD19.05(3/4)
OD28.58(1-1/8)
Ø19.05(3/4)
Ø22.2(7/8)
Ø22.2(7/8)
OD19.05(3/4)
Ø9.52(3/8)>
>
>
>
OD12.7(1/2)
Ø9.52(3/8)>
>
>
>
OD12.7(1/2)
Connection of gas pipe
Connection of liquid pipe
Connection of gas pipe
Connection of liquid pipe
Model!
!
ARCNN20!
!
Model!
!
ARCNN30!
!
!
Y branch
A
B
To outdoor unit
To branch piping or indoor unit
A
B
Facing>
upwards
Facing>
downwards
Within ± 3°> Within ± 3°>
Viewed from point A>
in direction of arrow
Within +/- 10°>
>
Connection of Outdoor Units
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