Hello Kordou, You can use an equation component to implement an if-condition in the Simulation Studio. Select Assembly/Insert New Equation to do this. See Volume 2 section 7 of the TRNSYS 16 manual for how to use equations in TRNSYS. See also 7.3.9.1 in Volume 7 for available mathematical functions. After defining the two temperatures you want to compare as inputs, you can apply the if-condition in an output as output = 1 - gt(DT,limit), since you wanted to have state 0 when DT is above the limit. The gt function returns 1 if the first expression is greater than the second, and 0 otherwise.
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