15
ENGLISH
Service Port
Low Pressure Gas pipe
Liquid pipe
High Pressure Gas pipe
CAUTION
Please block the pipe knock outs of the front and side panels after
installing the pipes.
(Animals or foreign objects may be brought in to damage wires.)
!
WARNING
• Always careful not to leak the refrigerant during welding.
• The refrigerant generates poisonous gas harmful to human body
if combusted.
• Do not perform welding in a closed space.
• Be sure to close the cap of the service port to prevent gas
leakage after the work.
!
For Heat Recovery System Installation
111
416
408
I.D.28.58
I.D.28.58
I.D.34.9
I.D.31.8
I.D.22.2
I.D.28.58
125
I.D.41.3
O.D.34.9
2 Unit
3 Unit
4 Unit
ARCNB21
ARCNB31
ARCNB41
C
C
A
Outdoor units
Model
Low Pressure Gas Pipe
Liquid Pipe
High Pressure Gas Pipe
111
130
416
408
I.D.28.58
I.D.28.58
I.D.34.9
I.D.41.3 I.D.38.1 O.D.34.9
I.D.31.8
I.D.22.2
I.D.28.58
111
130
416
408
I.D.28.58
I.D.28.58
I.D.34.9
I.D.41.3 I.D.38.1 O.D.34.9
I.D.31.8
I.D.22.2
I.D.28.58
I.D.15.88
I.D.15.88
I.D.15.88
I.D.19.05
I.D.12.7
I.D.12.7
I.D.9.52
331
83
70
314
I.D.22.2 O.D.19.05
O.D.12.7
I.D.9.52
341
111
298
I.D.34.9
I.D.41.3
I.D.28.58
341
111
298
I.D.34.9
I.D.41.3
I.D.28.58
334
281
I.D.15.88
I.D.19.05
I.D.19.05
I.D.12.7
83
I.D.22.2
134
415
375
I.D.44.48 I.D.53.98
I.D.41.3
I.D.28.58
334
281
I.D.15.88
I.D.19.05
I.D.19.05
I.D.12.7
83
I.D.22.2
C
C
C
C
C
I.D.34.9
O.D. 28.58
I.D.22.2
I.D.34.9
O.D.28.58
I.D.22.2
I.D.34.9
O.D.28.58
I.D.22.2
I.D.34.9
O.D.28.58
I.D.22.2
I.D.53.98
I.D.44.5
O.D.41.3
I.D.28.58
I.D.22.2
O.D.19.05
I.D.44.5
I.D.41.3
O.D.34.9
I.D.34.9
O.D.28.58
I.D.22.2
O.D.41.3
I.D. 44.5
I.D.53.98
O.D.41.3
I.D.44.5
I.D.53.98
O.D.41.3
I.D.44.5
I.D.53.98
I.D.22.2
O.D.28.58
I.D.34.9
O.D.22.2
I.D.28.58
I.D.31.8
I.D.22.2
O.D.28.58
I.D. 34.9
I.D. 19.05
I.D.22.2
O.D.28.58
I.D. 19.05
O.D.15.88
I.D. 19.05
O.D.15.88
I.D.22.2
O.D.19.05
I.D.19.05
O.D.15.88
I.D.19.05
O.D.15.88
O.D.34.9
I.D.28.58
I.D.12.7
I.D.15.88
O.D.19.05
I.D.15.88
I.D.19.05
O.D.22.2
I.D.28.58
I.D.22.2
O.D.190.05
A
≥
B
≥
C
≥
D (Capability)
①
IDU side connection pipe
②
ODU to ODU connection pipe (1st branch)
③
ODU to ODU connection pipe (2st branch)
④
ODU to ODU connection pipe (3rd brach)
2, 3, 4 Outdoor Units
(Master)
A
B
(Slave1)
C
(Slave2)
D
(Slave3)
For more information, refer accessory installation manual.
Y branch
A
B
To outdoor unit
To branch piping or indoor unit
A
B
Viewed from point A
in direction of arrow
/- 10
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
hanging 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.
Six-sided Nut
(M10 or M8)
Hanger metal
Hanger metal
Hanger metal
Flat washer
Flat washer
Flat washer
(M10)
Hanging bolt
(M10 or M8)
A
Insulation
Connection of Outdoor units
When installing ODU series, refer below picture.
Precautions on Pipe connection / Valve operation
Pipe connection is done by connecting from the end of the pipe to the
branching pipes, and the refrigerant pipe coming out of the outdoor
unit is divided at the end to connect to each indoor unit. Flare
connection for the indoor unit, and welding connection for the outdoor
pipe and the branching parts.
- Use hexagonal wrench to open/close the valve.
Summary of Contents for Multi V 5 ARUM080LTE5
Page 55: ......
