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7 Carrying out electrical installations
Electrical installations may only be carried out by a qualified electrician.
WARNING
The heat pump is connected to a 400 V (50 Hz) electricity network. Both the standard equipment
supplied with the heat pump and any electrical accessories must be installed and connected when
installing the device. The following standard electrical equipment is supplied with the heat pump:
•
Outdoor temperature sensor (B9)
•
Upper and lower sensor of the domestic water accumulator (B2, B3)
•
Cascade sensor (B10)
•
Additional heat control sensor (B11)
See the electrical diagrams for complete connection details for each heat pump model.
When carrying out electrical installations, take the following points into account:
•
Disconnect the heat pump before the conducting the insulation resistance test on the building.
•
Make sure that the heat pump fuse is of type C (slow).
•
Route the cabling of electrical accessories through the control unit lead-throughs at the back of
the device.
•
Do not install sensor or data transmission cables near power cables.
•
The order of wires is not important when connecting temperature sensors.
7.1 Connecting the power supply
Do not connect power to the heat pump before the collector and charge circuit are
NOTICE
filled with heat collecting liquid and water. Otherwise, the pump, compressor or
protective devices may get damaged.
1. Route the power supply cable to the control unit.
A lead-through is reserved for the cable both from the top of the heat pump and from the
ventilation room below. If the supply cable comes from above, bend the cable to the control unit
according to the cable manufacturer's instructions. For the installation dimensions of the lead-
through on top of the heat pump, see section
2. Tighten the bushing seal to ensure that the cable is not strained.
3. Attach the cable to the rail of the control unit.
Taurus Inverter Pro and Taurus EVI
Installation, Commissioning and Maintenance Manual
© 2023 Gebwell
7 Carrying out electrical installations
Heat pump pipe
outputs.
Version: 2-1 12/04/2023
Page 52
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