Klarstein 10029707 Betriebsanleitung Seite 56

Pipe expanding method
Improper pipe expanding is the main cause of refrigerant leak-
age. Please expand the pipe according to the following steps:
1. Cut the pipe.
• Confirm the pipe length according to the distance of the indoor unit.
• Cut the required pipe with pipe cutter.
2. Remove the burrs
• Remove the burrs with shaper and prevent the burrs from getting into
the pipe.
3. Put on suitable insulating pipe.
4. Put on the union nut.
• Remove the union nut on the indoor connection pipe and outdoor
valve; install the union nut on the pipe.
5. Expand the port
• Expand the port with expander.
"A" is different depending on the diameter, please refer to the
sheet below:
Outer diameter (mm)
ø 6 - 6,35 (1/4 ")
ø 9,52 (3/8 ")
ø 12 - 12,7 (1/2 ")
ø15,8 - 16 (5/8 ")
6. Inspection
• Check the quality of expanding port. If there is any blemish, expand
the port again according to the steps above.
smooth surface
leaning
the length is equal
Max.
1,3
1,6
1,8
2,4
improper expanding
damaged crack uneven
surface thickness
A (mm)
Min.
0,7
1,0
1,0
2,2
pipe
pipe cutter
pipe
shaper
downwards
union pipe
pipe
hard
mold
expander
pipe
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