V2.1.5
Subject to technical changes.
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18
8.4 Electrical connection
General notes
Work on the opened heat pump cabinet and connection box must only be carried out in dead switched status and by
an approved electrician or services technician. All components, necessary for the power supply and control, are in the
upper half of the heat pump cabinet.
The necessary cross section of the cable depends on the power consumption of the heat pump. Observe the technical
connection conditions of the corresponding energy utilities as well as the VDE 0100 and DIN EN 60204.
Make sure to apply a right rotating field when connecting the supply lines for the
main current (possibly special tariff). In case of a wrong rotating field the heat
pump does not have any output and is getting damaged.
The compressor is protected against thermal overload. The fusing and the motor
protective switch for the heat pump as well as the separator from the network
must be produced by the system builder.
In case of an extension of the sensor connection line, it is necessary to use a line
cross section of at least 0.75 mm².
Do not install the sensor cable together with the current-carrying conductions!
After installation and before commissioning of the system, it is necessary to check and document the earth conductor
resistance and the isolation resistance according to DIN VDE 0701 and DIN VDE 0702. These tests must be repeated
according to the intervals applicable on site or according to the DIN VDE regulations of the series DIN VDE 0701 and
0702 (commissioning, re-commissioning, etc.).
The terminal assignment diagram of the corresponding heat pump type applies. It
is available in the machine and at the appendix of this manual.
Responsibilities for the electrical cabling
For electrical installation of different connection, different responsibilities are applicable. Please observe the following
legal regulations:
The local power supply company is responsible for the connection to a house connection (electricity meter).
An electrical company approved by the power supply company is responsible fort he installation and connec-
tion of the supply line between the electricity meter, fuses, main switch, motor protective switch and terminal
box.
Heating engineers authorizes by SmartHeat or correspondingly qualified electricians may perform the electri-
cal connection of the heat pump
bravour
. Further special knowledge which the installer gathers during training
at SmartHeat is required for such works.
It must be possible to completely separate the heat pump
bravour
from the network and control tension via
one or, if applicable, several separate external main switches which are upstream to the terminal box. The in-
staller/operator is responsible for installing and connecting the external separator (main switch).
