Refrigerant Piping Connection - Toshiba RAV-GP1101AT8-E Manuel D'installation

Supplied protective bush
Supplied passage hole guard material
* Attach the guard material securely
so that it does not come loose.
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
EN-157

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
Q'ty Liquid side
Outer diameter
One each
9.5 mm
1
Gas side
Outer diameter
One each
15.9 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 R32.
Insert a flare nut into the pipe, and flare the pipe.
Use the flare nuts supplied with the air conditioner
or flare nuts for R32 or R410A.
However, the conventional tools can be used by
adjusting the projection margin of the copper pipe.
- 79 -
Projection margin in flaring: B (Unit: mm)
Rigid (Clutch type)
Outer dia. of
copper pipe
9.5
15.9
Flaring diameter size: A (Unit: mm)
Thickness
Outer dia. of copper pipe
0.8 mm
9.5
15.9
Thickness
1.0 mm
CAUTION
• Do not scratch the inner surface of the flared part
when removing burrs.
• Flare processing under the condition of scratches on
the inner surface of flare processing part will cause
refrigerant gas leak.
• Check that the flared part is not scratched, deformed,
stepped, or flattened, and that there are no chips
adhered or other problems, after flare processing.
• Do not apply refrigerating machine oil to the flare
surface.
B
R32 or R410A Conventional
tool used tool used
0 to 0.5 1.0 to 1.5
A
+0
A
–0.4
13.2
19.7
EN-158