51
Vitotronic 200 heat pump control unit service
instructions
Note
Observe the technical connection conditions of the rel-
evant power supply utility.
Electronic soft starter, type SMC
Electronic soft starter functions:
■
Monitoring the compressor mains feed.
■
Reducing the compressor starting current during
start-up.
Delivered condition:
■
Rotating field, phase asymmetry: 20 %
■
Max. compressor operating current "Imax": Subject
to compressor output
Overload protection
If the tolerance range of the electronic soft starter is
exceeded, the soft starter will automatically separate
the appliance from the mains.
Remove the cause if the relay has responded. The
relay does not need to be reset.
Starting characteristics
The starting characteristics are set at the DIP switches
behind the protective see-through cover of the elec-
tronic soft starter. At the factory, the DIP switches are
set to suit the respective heat pump type.
Prior to commissioning, compare and possibly adjust
the DIP switch settings with the details in the separate
"Connection and wiring diagram".
Installation sequence
Power supply
(cont.)
5549 984 GB
Installation
Summary of Contents for KWT BW 301.B090
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