sumption. In general: the lower the moisture threshold, the higher the energy consumption.
Below the activation temperature, the moisture measurement is repeated at regular intervals until a mois-
ture value above the moisture threshold is detected or until the activation temperature is exceeded again.
If moisture is detected, the heating circuit switches on for the minimum heating time and the moisture
measurement is suspended. Only after the minimum heating time has elapsed is the moisture determi-
ned again at regular intervals. Depending on the result of the moisture measurement, the heating circuit
remains switched on or is deactivated.
The system automatically optimises the duration of a measuring cycle depending on the sensor type and
temperature.
SWITCH-OFF TEMPERATURE (LOWER TEMPERATURE LIMIT)
In addition to the activation temperature, there is also a lower temperature limit (the switch off tem-
perature), below which the moisture measurement and, if necessary, the heating are deactivated again.
At very low outside temperatures, dripping condensation no longer occurs in roof areas and snowfall is
no longer to be expected in open spaces. (If snow falls, it will be dry, light and not slippery. Since in this
case the heating capacity is often not sufficient to completely defrost the surface and it would only be
partially thawed instead, the risk of slipperiness would be rather increased by switching on the heating
system.)
Factory setting: -15 °C
MINIMUM HEATING TIME
If moisture above the moisture threshold is detected after the temperature has fallen below the activation
temperature, the minimum heating time starts, which ensures that the heated area is definitely de-
frosted. During the minimum heating time, no further moisture measurement takes place.
An external button on input A, which is switched to L, can be used to manually activate the defined mini-
mum heating time. When the button is pressed once, the heating is switched on for the duration of the
minimum heating time.
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WARRANTY
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