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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 intelligent
sensors located in the heated terrain. Each sensor measures both temperature and mois-
ture, and the system turns the heating elements on and off 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 sen-
sors used for the DEVIreg™ 850 also provide the most exact readings when compared
with corresponding analogue systems. The result is optimum functionality and low en-
ergy consumption.
A typical installation consists of:
• Controller unit (only one)
This is the device which, based on the measurements
from the sensors, decides when to heat the connected
area(s).
• Power supply (one or more)
The power supply delivers power to the controller unit
and the connected sensors.
• Ground 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.
• 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.
For more information about the ice and snow melting function of the DEVIreg™ 850,
please refer to: Appendix B: "How it works".
4
DEVIreg™ 850 IV
Installation instruction
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