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Arnold Rak OTD 2 Manual

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Settings
To set parameter values, press and hold the programming button for 3 seconds. SCA // Hi // 40 will be shown on the display. Firstly, SCA will be
displayed for 1 second, followed by Hi, and finally 40. The required value can then be set using the arrow buttons. To access the next parameter,
press the programming button again. If no buttons are pressed for 30 seconds, the program returns to the initial display.
Parameter Shown on display Factory setting OTD2 -1999 OTN2 -1991 OTN2 -1999
OJ standard
Max. temperature SCA // Hi // 40 40°C (0-40°C) X X X
Min. temperature SCA // Lo // 0 0°C (0-40°C) X X X
Max. limit temperature FLOOR Li // Hi // 28 28°C (15-40°C) X
Min. limit temperature FLOOR Li // Lo // 15 15°C (5-30°C) X
Measure floor temperature FLo // 24.5 X
Measured room temperature ro // 21.5 X
Application APp // A : Room sensor *1 XX
// F : Floor sensor *2 XX
// AF : Room with Limit sensor *2 X
// C : Controller X
Offset oFF // 0 0 (+/- 3°C) X X X
Night setback/ECO nSb // 5 5°C (2-8°C) X
*1 : Only available if floor sensor is not installed
*2 : Only available if floor sensor is installed
If Controller (C) is selected under Application, the floor and room sensors are disconnected and heating is controlled on a scale of 0-10, corresponding to 0-
100% activated
Error codes:
E1 - Sensor error. Sensor is short-circuited or disconnected. The LED is flashing red once.
E2 - Limit error. The temperature on the floor has surpassed max. limit temperature. The thermostat switch off the heating and the LED is flashing
red twice.
E5 - Overheating. The temperature is too high in the termostat and switch off the heating. The LED is flashing 5 times.
Type OTN2 / OTD2 with room or floor sensor English
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