Installation Manual
Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump
| 23
Bosch Thermotechnology Corp.
|
01.2017
Data subject to change
Step 2: Remove burrs
Burrs can aff ect the air-tight seal of refrigerant piping connection. They must be
completely removed.
1.
Hold the pipe at a downward angle to prevent burrs from falling into the pipe.
2.
Using a reamer or deburring tool, remove all burrs from the cut section of the
pipe.
Pipe
Reamer
Point down
Figure 28
Step 3: Flare pipe ends
Proper fl aring is essential to achieve an airtight seal.
1.
After removing burrs from cut pipe, seal the ends with a piece of tape to
prevent foreign materials from entering the pipe.
2.
Sheath the pipe with insulating material.
3.
Place fl are nuts on both ends of pipe. Make sure they are facing in the proper
direction, because you can’t put them on or change their direction after
fl aring. See Fig. 29.
Flare nut
Copper pipe
Figure 29
4.
Remove tape from ends of pipe when ready to perform fl aring work.
5.
Clamp fl aring block on the end of the pipe. The end of the pipe must extend
beyond the edge of the fl are form in accordance with the dimensions shown
in the Table 6.
Figure 30
Piping extension beyond
fl
are form
Outer diameter
of tube mm (in.)
A mm (in.)
Min.
Max.
Ø 6.35 (Ø 0.25”)
0.7 (0.0275”)
1.3 (0.05”)
Ø 9.52 ( Ø 0.375”)
1.0 (0.04”)
1.6 (0.063”)
Ø 12.7 ( Ø 0.5”)
1.0 (0.04”)
1.8 (0.07”)
Ø 16 ( Ø 0.63”)
2.0 (0.078”)
2.2 (0.086”)
Table 6
Flaring tool
Tube
A
Figure 31
6.
Place fl aring tool onto the fl aring block.
7.
Turn the handle of the fl aring tool clockwise until the pipe is fully fl ared.
8.
Remove the fl aring tool and fl aring block, then inspect the end of the pipe
for cracks and even fl aring. Slide the nut up to see if the fl are is of proper
diameter and does not interfere with the threads in the fl are nut.
