Tuxhorn 951.15.00.00, Assembly And Operating Instructions Manual

Page: 25 / 48

950.15.02.00
Dated 2021/09/10
- 9 -
GB
5.3 Electrical connections
5.3.1 General instructions
Only authorised, specialist personnel are permitted to open electrical housings and work on
the electrical system after de-energising the equipment. When establishing connections,
make sure the terminal assignments and polarity are correct. Protect the control unit and
electrical components against excess voltage.
Danger!
Risk of fatal electric shock as a result of incorrect electrical connections.

Electrical connections must exclusively be created by electricians
approved by energy suppliers and as per the locally applicable
regulations.

Disconnect the supply voltage prior to conducting any work.
The station is pre-installed and wired ex works. Connect the power cable and the bus
connection to the controller on initial start-up.
The main connection must be
separately fused (16 A) and
connected using a separate cable
with a 2,5 mm² cross-section. Other
heavy-draw consumers, e.g.
washing machines must not be
connected in parallel.
Please refer to the separate control
unit instructions for more details.
Reset STB - safety temperature
limiter after tripping here.
The BUS connection is protected
against polarity reversal.
For further details, please refer to the separate control instructions.
Install the
tubra
®
-eTherm P Sensor measuring unit in the domestic control cabinet upstream
of the infeed meter and connect to the tubra
®
-eTherm P Controller via the V-BUS.