4
When more than 1 area is controlled by the DEVIreg™ 850 system, it is also possible to
prioritize the areas. Prioritizing makes it possible to operate 2 areas, even if the needed
power for 2 areas is not present.
The DEVIreg™ 850 is fully automatic and operated digitally by means of the intel-
ligent sensors located in the heated terrain. Each sensor measures both temperature
and moisture, and the system turns the heating elements on and o based on these
readings. By combining moisture and temperature readings, the system is able to save
around 75% energy compared to systems which only measure temperature readings.
The digital sensors used for the DEVIreg™ 850 also provide the most exact readings
when compared with corresponding analogue systems. The result is optimum func-
tionality and low energy consumption.
For more information about the ice and snow melting function of the DEVIreg™ 850,
please refer to: Appendix B: “How it works”.
User Manual
A typical installation consists of:
tController unit (only one)
This is the DEVIce which, based on the measure-
ments from the sensors, decides when to heat the
connected area(s).
tPower supply (one or more)
The power supply delivers power to the controller
unit and the connected sensors.
tGround sensor (one or more)
At least 1 ground sensor is needed for each
ground area, but to get the best performance of a
system, 2 or more sensors are recommended.
For more information please refer to the sensor
manual.
t Roof sensor (one or more)
At least 1 roof sensor is needed for each roof area,
but for complex roof constructions, 2 or more
sensors are recommended.
For more information please refer to the sensor
manual.
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