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What is the thermostat hysteresis of the Heat Controller?



What type of hysteresis curve does the Heat Controller thermostat follow?


See attached picture with 3 possible types, in which the Temperature is on the X-axis and the thermostat valve position on the Y-axis (100% is fully open, 0% is fully closed).

Figure 1 is with both for opening and closing independend curves of the valve position and with hysteresis in the temperature switch points

Figure 2 is a thermostat in which the valve is either fully open or fully closed with hysteresis.

Figure 3 is the same as Figure 1, but without hysteresis in the temperature swich points.


What would be the corresponding switching temperature (T1 & T2, or T1a, T1b, T2a, T2b) the Heat Controller is using if, for instance, the room is set to 20 degrees centigrade?


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