(C) IDM ENERGIESYSTEME GMBH
Installation instructions iPump A 3-11
35
electrical assembly
Ka
p
it
e
l 08
8. Electrical assembly
8.1. Electrical power supply
The electrical connection must be made by a quali
fi
ed
person and must be registered with the local electri-
city company. The executive electrical company, is
responsible for the norm-compliant connection to the
electrical installation and the applied safety measure.
Before commissioning the system, all terminals must
be checked and if necessary, tightened! For electrical
details please see the relevant wiring diagram.
The mains voltage at the terminals of the heat pump
must be 400 V or 230 V, ± 10 %. The dimensions
of the connecting cables must be checked by the
executive electric company.
8.2. Fault-current circuit breaker
A fault-current circuit breaker for the heat pump is not
required. The connection to the protective measure
„protective multiple earthing“ is suf
fi
cient. If never-
theless the protective measure „fault-current circuit
breakers“, dispatched by the executive electric com-
pany, a separate fault-current circuit breaker for the
heat pump is recommended. This must be designed
as an all current sensitive Type B (I
Δ
N
≥
30mA). The
speci
fi
ed FI-types related to the heat pump excluding
externally connected components (see Installation
instructions, data sheets).
For the main current circuit as a result of the occur-
ring starting currents, circuit breakers with a tripping
characteristic curve type „C“ or „K“ must be used.
For the control circuit and the optional electric auxilia-
ry heater, circuit breakers with a tripping characteristic
type „B“ or „Z“ are suf
fi
cient.
The electrical connection- and supply cables must be
designed as copper cables.
8.3. Electrical connection indoor unit
For the iPump A 3-11, separate cable entries for the
main power supply and for the sensors have been
designed to avoid problems in the
fi
eld of
E
lectro-
M
agnetic
C
ompatibility.
It is especially in the area of responsibility of the elec-
trical company to avoid possible coupling paths when
creating the electrical installation.
EMC-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
8.4. Electrical connection indoor unit
All electrical connections of the iPump A 3-11 will be
inserted from the top of the heat pump to the electrical
components. For connection details, please see the
enclosed wiring diagram of the iPump A 3-11.
Power supply of control: 230 V
Main power supply: 400 V / 230 V
3+N 400V / 50Hz
1+N 230V / 50 Hz
Main power supply
Power supply of Control
230V / 50Hz
