LG MULTI V S ARUN048GSS4 - Branch Pipe Fittings; Y-Branches

36
MULTI V S System Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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REFRIGERANT PIPING CONNECTIONS
Branch Pipe Fittings
Horizontal
plane
Viewed from this point in the direction of the arrow.
Y-branches
Figure 35: Y-Branch Installation Recommendations.
Figure 36: Y-Branch Horizontal Plane.
• Y-branches must be installed horizontally or vertically as shown in the diagrams above.
• Configuration can be any of the above, providing the horizontal 5 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.
Install the branch pipe between the outdoor units so that the outlet pipe is parallel with the surface.
A
B
T
o
Multi V S outdoor unit
T
o
branch piping or indoor unit
A
B
Viewed from point A
in direction of arrow
Within ±5º
Facing up
Facing down
Within ±3° Within ±3°
Blow nitrogen while
brazing
Do not cut this pipe shorter
than 2-3/4 inches long
Within ±5º
Vapor pipe Liquid pipe
Unit: Inch
Models
ARBLN01621
ARBLN03321
16-1/4
15-3//8
I.D. 3/4
I.D. 3/4
I.D. 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
I.D. 1/2
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
11-1/2
11-1/16
2-15/16
2-15/16
2-15/16
2-3/4
2-3/4
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
13-1/16
12-5/8
3-5/16
1
2
3
3
O.D. 3/4
O.D. 3/4
1 2
I.D. 7/8
I.D. 7/8
I.D. 7/8
I.D. 1/4
I.D. 1/4
I.D. 1/4
I.D. 1/4
I.D. 1/4
1
1
1
1
I.D. 1-1/8
I.D. 3/8
I.D. 3/8
I.D. 3/8
I.D. 3/8
I.D. 3/8
I.D. 3/8
O.D. 3/8
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