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General
Electrical connection must be registered with the relevant
power supply company.
The necessary series-connected fuse for the primary
circuit can be found in the technical data on page 3. It is
essential that a “slow-blow” design is used (“C” characte-
ristic). The relevant cable cross section must be determi-
ned by the electrician.
A thermal relay is pre-installed to protect the compressor.
Depending on system design, the relevant sensors are
required; see the following pages for more information.
For reliable operation of the heat pump, the voltage in the
mains network must be within specific tolerance limits,
between 360 and 430 V (check with the relevant power
supply company if necessary).
The TERRA CL is fitted with a starting current limiter as
standard, which reduces the starting currents by up to
50%.
Some information on the
EMC issue
:
Electro-magnetic compatibility demands additional work
and expertise from all manufacturers and operators of
modern electrical technology and electronics year on
year.
As the number of electronic devices in use increases con-
tinually, the number of potential sources of interference
also increases. A combination of cables from the power
supply company, transmission stations and other commu-
nications devices generates an invisible “electrosmog”.
This interference affects all systems, both biological (us
as living beings) as well as technical electrical systems.
They generate undesirable fault currents which can have
different effects.
The effects on biological systems can only be guessed at
currently, but the effects on technical electrical systems
are measurable, and in the worst case, visible as well.
The faults can have different effects:
Short-term measurement faults
•
Permanent measurement faults
•
Short-term interruption in data connections
•
Permanent interruption in data connections
•
Data losses
•
Damage to equipment
•
Potential sources of interference are essentially all
technical electrical systems, e.g. contactor coils, electric
motors, transmitters, mains and high-voltage lines, etc.,
and the equipment can be affected via different coupling
routes (galvanic, inductive, capacitive, via radiation).
For our part, we have undertaken everything possible to
make the Multitalent Control interference-proof (hardware
design, EMC-proof electrical panel, mains filter, etc.).
It is the responsibility of the electrician in particular
to avoid any possible coupling routes when setting
up the electrical installation.
primary power supply
3x400V / 50Hz
electric heating immenser
3x400V / 50Hz
control current
230V / 50Hz
