Connection Of Outdoor Units; Installation Procedure For Hr Unit - LG multi v Installation Manual
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Also See for multi v:
- Service manual (147 pages) ,
- Installation manual (113 pages) ,
- Manual (104 pages)
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REFRIGERANT PIPING INSTALLATION
26
Connection of Outdoor units
Outdoor units
C
2 Unit
C
C
3 Unit
C
For more information, refer accessory installation manual.
Y branch
A
A
To outdoor unit
B
To branch piping or indoor unit
Installation procedure for HR unit
1
Using an insert-hole-in- anchor, hang the hanging bolt.
2
Install a hexagon nut and a flat washer (locally-procured)to the hang-
ing bolt as shown in the figure in the bottom, and fit the main unit to
hang on the hanger metal.
3
After checking with a level that the unit is level, tighten the hexagon
nut.
* The tilt of the unit should be within ±5° in front/back and left/right.
4
This unit should be installed suspended from ceiling and side A should
always be
facing up.
5
Insulate not used pipes completely as shown in the figure.
Low Pressure Gas Pipe
Model
416(16-3/8)
408(16-1/16)
I.D.28.58(1-1/8)
I.D.28.58(1-1/8)
I.D.22.2(7/8)
I.D.31.8(1-1/4)
I.D.34.9(1-3/8)
ARCNB21
C
I.D.38.1(1-1/2)
O.D28.58(1-1/8)
I.D.41.3(1-5/8)
O.D.34.9(1-3/8)
130(5-1/8)
406(16)
353(13-29/32)
I.D38.1(1-1/2)
I.D34.9(1-1/8)
I.D.41.3(1-5/8)
ARCNB31
I.D.41.3(1-5/8)
O.D28.58(1-1/8)
O.D.34.9(1-3/8)
125(4-29/32)
120(4-23/32)
B
Liquid Pipe
331(13-1/32)
314(12-3/8)
I.D.15.88(5/8)
I.D.15.88(5/8)
I.D.12.7(1/2)
111(4-3/8)
I.D.19.05(3/4)
I.D.9.52(3/8)
I.D.12.7(1/2)
I.D.28.58(1-1/8)
I.D12.7(1/2)
I.D.22.2(7/8)
O.D.19.05(3/4)
I.D22.2(7/8)
O.D15.88(5/8)
I.D19.05
(3/4)
120(4-23/32)
70(2-3/4)
110(4-11/32)
334(13-5/32)
281(11-1/16)
O.D.19.05(3/4)
O.D.19.05(3/4)
I.D.22.2(7/8)
I.D.34.9(1-3/8)
111(4-3/8)
I.D.15.88(5/8)
I.D.28.58(1-1/8)
I.D.15.88(5/8)
O.D.19.05(3/4)
O.D12.7(1/2)
I.D9.52(3/8)
I.D.12.7(1/2)
I.D22.2(7/8)
I.D19.05
X 2
(3/4)
110(4-11/32)
110(4-11/32)
Within +/- 10°
Viewed from point A
in direction of arrow
(Unit : mm(inch))
High Pressure Gas Pipe
I.D31.8(1-1/4)
I.D34.9(1-3/8)
I.D28.58(1-1/8)
I.D25.4(1)
I.D31.8(1-1/4)
I.D31.8(1-1/4)
I.D28.58(1-1/8)
I.D28.58(1-1/8)
I.D25.4(1)
83(3-9/32)
453(17-27/32)
491(19-9/32)
O.D12.7(1/2) I.D9.52(3/8)
O.D25.4(1) I.D22.2(7/8)
I.D.15.88(5/8)
70(2-3/4)
80(3-5/32)
I.D9.52(3/8)
I.D15.88(5/8)
O.D25.4(1) I.D22.2(7/8) I.D19.05(3/4)
O.D19.05(3/4)
X2
120(4-23/32)
110(4-11/32)
I.D34.9(1-3/8)
I.D34.9(1-3/8)
I.D41.3(1-5/8)
I.D38.1(1-1/2)
I.D28.58(1-1/8)
I.D28.58(1-1/8)
I.D38.1(1-1/2)
I.D34.9(1-3/8)
I.D22.2(7/8)
83(3-9/32)
471(18-17/32)
517(20-11/32)
I.D19.05(3/4) I.D15.88(5/8)
I.D41.3(1-5/8)
I.D38.1(1-1/2)
O.D22.2(7/8)
O.D38.1(1-1/2)
O.D34.9(1-3/8)
I.D.12.7(1/2)
120(4-23/32)
90(3-17/32)
130(5-1/8)
I.D6.35(1/4)
I.D12.7(1/2)
I.D22.2(7/8)
O.D15.88(5/8)
O.D28.58(1-1/8)
I.D19.05
(3/4)
70(2-3/4)
120(4-23/32)
Facing
Facing
downwards
upwards
Within ± 3°
Within ± 3°
Six-sided Nut
(M10 or M8)
Hanger metal
Hanger metal
Hanger metal
Flat washer
Flat washer
Flat washer
(M10)
Hanging bolt
Hanging bolt
Hanging bolt
(M10 or M8)
A
Insulation
111
(4-3/8)
I.D12.7(1/2)
125(4-29/32)
I.D41.3(1-5/8)
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