COOLNOMIX acts as an Intelligent thermostat, sending only a thermostatic request for the compressor to run or to stop it (non-inverter) or slow it (inverter). The sometimes complex system control boards found in cooling systems suffer no interference from fitting COOLNOMIX. There is also now an economic factor to consider: for the ~20% of cooling systems still under warranty, what was a no-cost warranty now carries a penalty of unnecessary system operation costs of 30%+ if COOLNOMIX is not fitted!