Label the refrigerant piping (injection and suc-
tion pipes) as well as the associated electrical
control lines of each interior unit with a letter
.
Only connect the lines to their associated con-
nections.
NOTICE!
Always pay attention to the af
filiation of the
electrical lines and refrigerant piping! The con-
nections of the individual circuits must not be
mixed up. Mixing up the assignment of control
lines and refrigerant piping can have fatal con-
sequences (compressor damage)!
Commissioning of the individual circuits must
be carried out successively.
Fig. 30: Deburring the refrigerant piping
1: Refrigerant piping
2: Deburrer
Fig. 31: Flanging the refrigerant piping
1: Flanging tool
Fig. 32: Correct flange shape
29
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