LG Multi V ARUN053GF2 - Y-branches Installation and Fitting Table

33
Refrigerant Piping Connections
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
REFRIGERANT PIPING CONNECTIONS
Models Vapor pipe Liquid pipe
Unit: Inch
ARBLN03321
ARBLN07121
ARBLN14521
ARBLN01621
16-1/4
15-3/8
I.D. 3/4
I.D. 3/4
I.D. 3/4
I.D. 1/2
I.D. 1/2
I.D. 1/2
I.D. 1/2
I.D. 1/2
11-1/2
11-1/16
2-15/16
2-3/4
2-3/4
2-3/4
I.D. 3/4
O.D. 5/8
I.D. 1/2
I.D. 5/8
I.D. 5/8
I.D. 5/8
I.D. 1/2
I.D. 1/2
11-1/2
11-1/16
2-15/16
2-3/4
I.D. 5/8
I.D. 5/8
I.D. 1
I.D. 1
O.D. 1
3-3/16
4-3/8
18-9/16
20-3/8
4-15/16
3-5/16
5-1/8
I.D. 5/8
I.D. 1-5/8
I.D. 1-5/8
I.D. 1-5/8
I.D. 1-1/2
I.D. 1-1/2
I.D. 1-1/2
O.D. 1-1/2
O.D. 5/8
2
2
3
3
2
2
3
3
3
3
14-13/16
15-15/16
-3/44-4-3/4
4-3/4
4-3/4
3-9/16
3-9/16
I.D. 5/8
I.D. 5/8
2
3
2
31
I.D. 3/4
I.D. 3/4
I.D. 3/4
I.D. 3/4
O.D. 3/4
O.D. 3/4
O.D. 3/4
12
3-13/16
I.D. 7/8
I.D. 7/8
I.D. 7/8
I.D. 7/8
I.D. 7/8
O.D. 7/8
O.D. 7/8
I.D. 7/8
I.D. 7/8
I.D. 1/4
I.D. 1/4
I.D. 1/4
1
1
I.D. 1-3/8
I.D. 1-3/8
I.D. 1-3/8
I.D. 1-3/8
O.D. 1-3/8
I.D. 1-1/8
I.D. 1-1/8
I.D. 1-1/8
I.D. 1-1/8
I.D. 1-1/8
O.D. 1-1/8
I.D. 1-1/8
O.D. 1-1/4
I.D. 1-1/4
I.D. 1-1/4
I.D. 3/8
I.D. 3/8
I.D. 3/8
O.D. 3/8
1
I.D. 1/2
I.D. 1/2
I.D. 1/2
13-1/16
12-5/8
I.D. 1/4
I.D. 1/4
I.D. 3/8
I.D. 3/8
I.D. 3/8
I.D. 5/8
I.D. 5/8
I.D. 5/8
I.D. 1/2
I.D. 1/2
I.D. 1/2
O.D. 1/2
O.D. 1/2
2-3/4
4-3/8
14-5/8
15-1/2
3-5/16
2
3
3
I.D. 3/4
I.D. 3/4
I.D. 3/4
2
I.D. 1/4
I.D. 3/8
I.D. 3/8
I.D. 1/2
O.D. 1/2
I.D.
1/2
4-3/84-3/8
16-3/8
17-1/2
O.D. 5/8
I.D. 5/8
I.D. 3/4
I.D. 5/8
I.D. 5/8
I.D. 3/4
I.D. 3/4
O.D. 3/4
3-3/16
2
3
1
2 33
3-13/16
I.D. 7/8
I.D. 7/8
I.D. 7/8
I.D. 1/4
I.D. 3/8
I.D. 3/8
2-15/16
Install the branch pipe between the outdoor units so that the outlet pipe is parallel with the surface.
A
B
T
o
Space unit
T
o
branch piping or indoor unit
A
B
Viewed from point A
in direction of arrow
Within ±10º
Facing up
Facing down
Within ±3°Within ±3°
Blow nitrogen while
brazing
Do not cut this pipe shorter
than 2-3/4 inches long
• Y-branches must be installed horizontally or vertically as shown in the diagrams above.
• Configuration can be any of the above, providing the horizontal 10 degree rule is followed.
• If the diameter of the refrigerant piping is different from the Y-branch port size, trim to the desired section using a pipe cutter.
• Y-branches should be insulated with the clam-shell jacket included in each kit.
Horizontal
plane
Viewed from this point in the direction of the arrow.
Branch Pipe Fittings
Y-branches
Table 22: Y-Branch Table.
Figure 31: Y-Branch Installation Recommendations.
Figure 32: Y-Branch Horizontal Plane.