Installation Guide

Amax Bmax
C D
21
10
15
10
20
20
1.
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
A
B
Outdoor unit
Indoor unit
Oil trap
When bending the pipe, be careful not to crush it. To prevent breaking of the pipe, avoid sharp bends.
Bend the pipe with a radius of curvature of 40 mm or over.
Connecting the pipe of gas side
rst makes working easier.
The connection pipe is specialized for R32.
Half union
Flare nut
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
Pipe Diameter( ) Fastening torque
Liquid side6.35mm(1/4") 18N.m
Liquid/Gas side9.52mm(3/8") 42 N.m
Gas side 12.7mm(1/2") 55N.m
Connection of pipes
Spanner
Torque wrench
Gas side 15.88mm(5/8") 60 N.m
Be careful that matters, such as wastes of sand
s,water,
, etc. shall not enter the pipe.
CAUTION
The standard pipe length is Cm. If the pipe
has
to be lengthened, the refrigerant should be charged,
according to D g/m. But the charge of refrigerant
must
be conducted by profes
sional air conditioner
engineer. Before adding additional refrigerant,
perform air purging from the refrigerant pipes and indoor
unit using a vacuum pump,then charge additional refrigerant.
2.
Max.Elevation:
Amax
In case the elevation A is more
than 5m, oil trap shoud be
installed every 5~7
Max. Length:
Bmax
M i n. Length:
B min
In case the pipe length B is
more than Cm, the refrigerant
should be charged, according
to D g/m.
Bmin
3
3
10
1U26MADFRA
1U35MADFRA
FOR
FOR
1U53WADFRA
1U71WADFRA
AS26PBDHRA/1U26MADFRA
AS35PBDHRA/1U35MADFRA
AS53PDDHRA/1U53WADFRA
AS71PDDHRA/1U71WADFRA
Installation Procedure
Piping size
•
•
•
Liquid pipe
Gas pipe
Liquid pipe
Gas pipe
•
•
•
•
•
fi
cp 6.35x0.8mm
cp 9.52x0.8mm
cp 6.35x0.8mm
cp 12.7x0.8mm
L
Piping Connection
• Install the removed flare nuts to the pipes
to be connected, then flare the pipes .
0
Outdoor Unit
15 25