Avionics Mil-Spec Part Solves Commercial HVAC Temperature Stability Problem
Part Maintains Setting and Avoids Repeat Service Calls
FARMINGDALE, N.Y. — Modifying an off-the-shelf control knob used in avionic systems stopped repeated service calls for a major maker of commercial combination heating and air conditioning rooftop units. Electronic Hardware Corp. (EHC) was able to change its standard PT70 control knob to fit on a small circuit board inside the different HVAC models.
While the conversion project took nearly a year, other alternatives were not possible. According to Steve Sgammato, president of EHC, “There was not much else they could have used unless they had their engineers come up with their own design, and go through months and years of testing. Our PT70 handles military and aerospace conditions. It was tested and proven in the field, so it was by far the logical choice. This was just another example of being able to take a reliable product that is generally used in one application, modify it and use it to solve a problem, and also be very cost effective.