I wanted to update the post in case anyone else needs this:
Decrease:
(L:var_CabinTemperatureKnob, number) ++ 100 min (>L:var_CabinTemperatureKnob, number)
Increase:
(L:var_CabinTemperatureKnob, number) -- 50 max (>L:var_CabinTemperatureKnob, number)