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Super Digital Inverter
Optional Installation Parts
(Locally procured)
Parts name
Refrigerant piping
A
Liquid side : Ø9.5 mm
Gas side : Ø15.9 mm
Pipe insulating material
B
(polyethylene foam, 10 mm thick)
C
Putty, PVC tape
Refrigerant Piping Connection
CAUTION
TAKE NOTE OF THESE 4 IMPORTANT POINTS BELOW
FOR PIPING WORK
1. Keep dust and moisture away from inside the connecting
pipes.
2. Tightly connect the connection between pipes and the
unit.
3. Evacuate the air in the connecting pipes using a
VACUUM PUMP.
4. Check for gas leaks at connection points.
Piping connection
Outer diameter
Ø9.5 mm
Outer diameter
Ø15.9 mm
EN
Q'ty
One each
One each
Liquid side
Thickness
0.8 mm
Gas side
Thickness
1.0 mm
Flaring
1. Cut the pipe with a pipe cutter.
Be sure to remove burrs that may cause a gas leak.
2. Insert a flare nut into the pipe, and then flare the pipe.
Use the flare nuts supplied with the air conditioner or
those for R410A.
Insert a flare nut into the pipe, and flare the pipe.
As the flaring sizes of R410A differ from those of
refrigerant R22, the flare tools newly manufactured for
1
R410A are recommended.
However, the conventional tools can be used by
adjusting the projection margin of the copper pipe.
Projection margin in flaring : B (Unit : mm)
Rigid (Clutch type)
Outer dia. of
copper pipe
9.5
15.9
Flaring dia. size : A (Unit : mm)
Outer dia. of copper pipe
15.9
*
In case of flaring for R410A with the conventional flare
tool, pull the tool out approx. 0.5 mm more than that for
R22 to adjust it to the specified flare size.
The copper pipe gauge is useful for adjusting the
projection margin size.
11
B
Conventional tool
R410A tool used
R410A
0 to 0.5
A
9.5
used
1.0 to 1.5
+0
A
–0.4
13.2
19.7
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