T
H E
P O W E R
F A M I L Y
(C) IDM ENERGIESYSTEME GMBH
Allgemeine Informationen
Installation TERRA S/W
26
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main electricity connection
3 x 400 V/50 Hz
control current connection
1x 230 V/50 Hz
activation of the brine or
groundwater pump
3 x 400 V/50 Hz
or 1x 230V/50HZ
recommendation:
insert suitable motor
protection switch
4.
4.
4. Electrical installation
Allgemeine Informatio
Allgemeine Informatio
El
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4. Electrical installation
4.1. Power supply
Electrical connection must be registered with the
relevant power supply company.
The required series-connected fuse for the primary
circuit can be calculated from the technical data (start-
ing current compressor) and the power consumption
of the on-site brine/ground water pumps installed, as
well as any circulation pump.
It is essential that a “slow-blow” design is used (“C” or
"K" characteristic). The relevant cable cross section
must be determined by the electrician.
All systems are fi tted with a start-up current limiter
that also monitors the power consumption and the
phasing.
A power protection switch is already fi tted for the brine
or ground water pump. In particular it is recommended
to install a suitable motor protection switch in the sup-
ply line to the brine or ground water pump especially
in the case of large heat pump systems.
The heat pump is operated via the Navigator Control.
Depending on system design, the relevant sensors
are required; see the connection diagrams on the fol-
lowing pages for more information.
For reliable operation of the heat pump, the voltage in
the mains network must be within specifi c tolerance
limits, between 360 and 430 V (check with the rel-
evant power supply company if necessary).
