LG Multi IV - Outdoor Unit Y-Branches for ARUB Series Heat Recovery Units

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Refrigerant Piping Design & Layout Best Practices
Outdoor Unit Y-branches for ARUB Series Heat Recovery Units
For Dual-Frame Heat Recovery Systems
For Triple-Frame Heat Recovery Systems
Combination specification
Low-Pressure Vapor Pipe Liquid Pipe High-Pressure Vapor Pipe
Multi-Frame
Connector
ARCNB21
Unit: inch
5-1/8
16-3/8
4.2
I.D. 1-1/8 I.D. 1-1/8
I.D. 1-3/8
I.D.
1-5/8
I.D. 1-1/2
O.D.
1-3/8
I.D. 1-1/4
I.D.
7/8
I.D.
1-1/8
4-3/8
4-3/4
I.D. 3/4
I.D. 7/8
O.D. 1-1/8
I.D.
5/8
I.D.
5/8
I.D. 5/8
I.D. 3/4
I.D. 1/2
I.D. 1/2
I.D. 3/8
13-1/16
2-3/4
12-3/8
I.D. 7/8 O.D. 3/4
3-5/16
I.D. 1/2
4-3/8
O.D. 5/8
I.D. 3/8
O.D. 1
I.D. 7/8
I.D. 3/4
4-3/4
X2
O.D. 3/4
I.D. 5/8
I.D. 1/2
4-3/8
O.D.1
I.D.7/8
3-/16
O.D. 1/2
I.D. 3/8
2-3/4
17-7/8
19-5/16
4-3/8
I.D. 1-1/8
I.D.1-3/8
I.D. 1-1/8
I.D.1-1/4
I.D. 1
I.D. 1-1/4
I.D. 1
I.D. 1-1/8
I.D.1-1/4
Combination specification
ARCNB21
ARCNB31
Liquid Pipe
hcni :tinU
Low-Pressure Vapor Pipe High-Pressure Vapor Pipe
B
BA
A
Multi-Frame
Connector
5-1/8
16-3/8
4.2
I.D. 1-1/8 I.D. 1-1/8
I.D. 1-3/8
I.D.
1-5/8
I.D.
1-1/2
O.D. 1-3/8
I.D. 1-1/4
I.D.
7/8
I.D.
1-1/8
4-3/8
4-3/4
I.D. 3/4
I.D. 7/8
O.D. 1-1/8
I.D.
5/8
I.D.
5/8
I.D. 5/8
I.D. 3/4
I.D. 1/2
I.D. 1/2
I.D. 3/8
13-1/16
2-3/4
12-3/8
I.D. 7/8 O.D. 3/4
3-5/16
I.D. 1/2
4-3/8
O.D. 5/8
I.D. 3/8
O.D. 1
I.D. 7/8
I.D. 3/4
4-3/4
X2
O.D. 3/4
I.D. 5/8
I.D. 1/2
4-3/8
O.D.1
I.D.7/8
3-/16
O.D. 1/2
I.D. 3/8
2-3/4
17-7/8
19-5/16
4-3/8
I.D. 1-1/8
I.D.1-3/8
I.D. 1-1/8
I.D.1-1/4
I.D. 1
I.D. 1-1/4
I.D. 1
I.D. 1-1/8
I.D.1-1/4
16
4-3/8
4-15/16
13-15/16
I.D. 1-3/8
I.D.
1-5/8
I.D. 1-1/2
I.D. 1-5/8
O.D. 1-3/8
I.D. 1-1/8
I.D. 1-3/8
4-3/4
I.D.
3/4
I.D. 7/8
O.D. 1-1/8
I.D. 3/8
3-5/16
I.D.
5/8
I.D.
3/4
I.D.
3/4
I.D. 1/2
I.D.
7/8
13-3/16
11-1/16
O.D. 3/4
I.D. 5/8
O.D. 1/2
I.D. 1/2
I.D. 1/4
X2
4-3/8 4-3/8
18-9/16
20-3/8
4-15/16
I.D. 1-5/8
I.D. 1-1/2
I.D. 1-1/2
I.D. 1-3/8
I.D. 1-3/8
I.D. 1-3/8
I.D. 1-1/8
5-1/8
I.D. 1/2
I.D.
3/4
I.D. 7/8
I.D. 1-5/8
I.D.1-1/2
I.D.1-5/8
O.D. 1-3/8
O.D. 1-1/2
O.D. 1-1/8
O.D. 5/8
3-9/16
2-3/4
4-3/4
4-3/4
I.D. 3/4
I.D. 5/8
O.D. 7/8
I.D. 1-1/8
I.D. 7/8
REFRIGERANT PIPING DESIGN
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