LG MULTI V IV ARUN072BTE4 - Page 39

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MULTI V IV System Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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Multi-frame Connectors (for heat pump outdoor unit connection)
HEAT PUMP ACCESSORIES
Two outdoor units
Three outdoor units
Multi-Frame
Connector
Combination Vapor pipe Liquid pipe
ARCNN21
Combination specification Vapor pipe Liquid pipe
ARCNN21
ARCNN31
Unit: inch
Unit: inch
B
B
5-1/8
I.D. 1-1/2
O.D.1-3/8
I.D.1-5/8
16-3/8
16-1/16
4-3/8
I.D.1-3/8
I.D. 1-1/4
I.D. 1-1/8
I.D. 1-1/8
I.D.1-1/8
I.D.7/8
4-3/4
I.D.7/8
I.D.
3/4
O.D. 1-1/8
13-1/16
12-3/8
O.D. 3/4
O.D. 5/8
I.D. 3/4
I.D. 5/8
I.D. 5/8
I.D.5/8
I.D. 7/8
4-3/8
I.D. 1/2
I.D. 1/2
I.D. 1/2
I.D. 3/8
2-3/4
3-5/16
I.D. 3/8
5-1/8
I.D. 1-1/2
O.D.1-3/8
I.D.1-5/8
16-3/8
16-1/16
4-3/8
I.D.1-3/8
I.D. 1-1/4
I.D. 1-1/8
I.D. 1-1/8
I.D.1-1/8
I.D.7/8
4-3/4
I.D.7/8
I.D.
3/4
O.D. 1-1/8
13-1/16
12-3/8
O.D. 3/4
O.D. 5/8
I.D. 3/4
I.D. 5/8
I.D. 5/8
I.D.5/8
I.D. 7/8
4-3/8
I.D. 1/2
I.D. 1/2
I.D. 1/2
I.D. 3/8
2-3/4
3-5/16
I.D. 3/8
I.D. 1-3/8
O.D. 1-3/8
4-15/16
16
13-15/16
4-3/8
I.D. 1-5/8
I.D. 1-1/8
4-3/4
I.D. 1-5/8
I.D. 7/8
I.D.
3/4
O.D.1-1/8
I.D. 1-3/8
I.D. 1-1/2
O.D. 3/4
O.D. 3/4
I.D. 5/8
I.D.
7/8
I.D. 1/2
13-3/16
11-1/16
3-5/16
I.D.
3/8
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
Multi-Frame
Connector
Install the branch pipe between the outdoor units so that the outlet pipe is parallel with the surface.
A
B
T
o
outdoor 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