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4. Connection diagrams
Note for service cases: The sensors are delivered with a four-wire cable. In existing installations there may be
sensors with a five-wire cable. Note that in this case the black wire is not connected.
Important commissioning note related to wiring
The ice and snow sensors of the T-FE series come with a four-core cable. One pair of wires (colour of wires
either brown and blue or white and white-black) is needed for temperature measurement, the other one (colour
of wires red and red-black) for moisture measurement.
The connection diagrams above show which wire is to be connected to which terminal. To ensure a successful
operation it is essential to follow these instructions strictly.