LG Multi V Installation Manual

ENGLISH
Installation Manual 25
Refrigerant piping installation
2 outdoor units
Connection of Outdoor units
2 Unit
3 Unit
ARCNN21
ARCNN31
C
C
C
C
130(5-1/8)
416(16-3/8)
331(13-1/32)
314(12-3/8)
408(16-1/16)
111(4-3/8)
I.D.38.1(1-1/2)
I.D.34.9(1-3/8)
I.D.34.9(1-3/8)
O.D.34.9(1-3/8)
O.D.19.05(3/4)
O.D.15.88(5/8)
O.D.19.05(3/4)
O.D.19.05(3/4)
O.D.34.9(1-3/8)
125(4-29/32)
406(15-31/32)
353(13-29/32)
111(4-3/8)
I.D.41.3(1-5/8)
I.D.41.3(1-5/8)
I.D.31.8(1-1/4)
I.D.28.58(1-1/8)
I.D.19.05(3/4)
I.D.15.88(5/8)
I.D.15.88(5/8)
I.D.15.88(5/8)
I.D.15.88(5/8)
I.D.28.58(1-1/8)
I.D.28.58(1-1/8)
I.D.28.58(1-1/8)
I.D.22.2(7/8)
I.D.22.2(7/8)
110(4-11/32)
120(4-23/32)
120(4-23/32)
I.D.22.2(7/8)
I.D.12.7(1/2)
I.D.12.7(1/2)
I.D.12.7(1/2)
I.D.12.7(1/2)
I.D.9.52(3/8)
I.D.41.3(1-5/8)
70(2-3/4)
83(3-9/32)
334(13-5/32)
281(11-1/16)
83(3-9/32)
Outdoor units Model Gas pipe Liquid pipe
I.D. 9.52(3/8)
O.D. 19.05(3/4)
I.D. 15.88(5/8)
O.D. 12.7(1/2)
I.D. 12.7(1/2)
I.D. 6.35(1/4)
X2
110(4-11/32)
110(4-11/32)
I.D.9.52(3/8)
I.D.22.2(7/8)
I.D.19.05(3/4)
O.D.28.58(1-1/8)
I.D.22.2(7/8)
I.D.19.05(3/4)
O.D.28.58(1-1/8)
I.D34.9(1-3/8)
I.D38.1(1-1/2)
I.D.3/4(19.05)
O.D.3/4(19.05)
I.D.3/4(19.05)
O.D.3/4(19.05)
For more information, refer accessory installation manual.
Field Supply (Not provided by LG)
Common pipes
[Unit: inch(mm)]
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

LG Multi V Specifications

General

Type	VRF (Variable Refrigerant Flow)
Compressor Type	Scroll
Refrigerant	R410A
Energy Efficiency	High
Control System	Centralized and individual control options
Indoor Units	Multiple types available (e.g., ceiling cassette, wall-mounted, ducted)