DEVIreg™ Opti
Installation Guide4
Sensing units (floor sensor) NTC 15 kOhm at 25°C (Default)
Sensing values:
0°C
20°C
50°C
42 kOhm
18 kOhm
6 kOhm
Control PWM (Pulse Width Modulation)
Cable specification max. 1x4 mm
2
and 2x2,5 mm
2
Ambient temperature 0° to +35°C
Frost protection temperature 5°C to +9°C (default 5°C)
Temperature range Room temperature: 5-35°C.
Floor temperature: 5-45°C.
Max. floor: 20-35°C (if unrecover-
able seal is broken then up to 45°C).
Min. floor: 10-34,5°C, only with
combination of room and floor
sensor.
Sensor failure monitoring The thermostat has a built-in
monitoring circuit, which
will switch off the heating if
the floor sensor is disconnected
or short-circuited
Ball pressure test temperature 75°C
Pollution degree 2 (domestic use)
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