Bosch Climate 5000 Installation Manual page 20

20 Refrigerant Piping Connection
Point down
Step 3: Flare pipe ends
Proper flaring is essential to achieve an airtight seal.
1 After removing burrs from cut pipe, seal the ends with PVC tape to
prevent foreign materials from entering the pipe.
2 Sheath the pipe with insulating material.
3 Place flare nuts on both ends of pipe. Make sure they are facing in
the right direction, because you can't put them on or change their
direction after flaring. See Fig. 6.3.
Flare nut
Copper pipe
4 Remove PVC tape from ends of pipe when ready to perform flaring
work.
5 Clamp flare form on the end of the pipe. The end of the pipe must
extend beyond the edge of the flare form in accordance with the
dimensions shown in the table below.
Bosch Climate 5000
Pipe
Reamer
Figure 6-2
Figure 6-3
Figure 6-4
Piping extension beyond flare form
Outer Diameter of
Pipe (mm)
Ø 6.35 (Ø 0.25") 0.7 (0.0275")
Ø 9.52 (Ø 0.375") 1.0 (0.04")
Ø 12.7 (Ø 0.5") 1.0 (0.04")
Ø 16 (Ø 0.63") 2.0 (0.078")
Flare form
6 Place flaring tool onto the form.
7 Turn the handle of the flaring tool clockwise until the pipe is fully
flared.
8 Remove the flaring tool and flare form, then inspect the end of the
pipe for cracks and even flaring.
Step 4: Connect pipes
When connecting refrigerant pipes, be careful not to use excessive
torque or to deform the piping in any way. You should first connect the
low-pressure pipe, then the high-pressure pipe.
A (mm)
Min. Max.
1.3 (0.05")
1.6 (0.063")
1.8 (0.07")
2.2 (0.086")
Pipe
Figure 6-5
6 720 866 139 (2016/07)