Klarstein 10029706 Montageanleitung Seite 47

5. If the outdoor unit is higher than the indoor unit for more than 5m, an oil return bend is needed..
indoor unit
Below 5m
Pipe expanding method
Improper pipe expanding is the main cause of refrigerant
leakage. 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.
Step 1 is different depending on the diametre, plese refer to the
table 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 ")
47
outdoor unit
A (mm)
Max.
1,3
1,6
1,8
2,4
oil return bend
indoor unit
Above 5m
pipe
downwards
union pipe
pipe
Min.
0,7
1,0
1,0
2,2
outdoor unit
pipe cutter
pipe
shaper
hard
mold
expander
pipe