Abstract: This paper presents a digital close loop control technology for AC contactors that include making close loop and keeping close loop using the digital power ...

Abstract: The making process of alternating current (AC) contactor relates closely to the excited coil current and contact bounce behaviors. The reduction of pick-up time is beneficial for switching ...

Understanding your HVAC’s unique language of sounds is a crucial part of this shift toward preventative care. In a climate where air conditioning is a non-negotiable necessity, ignoring these auditory ...

As we head into the colder months, HVACR technicians need to understand the fundamentals of defrost control board operation. While there are many types of defrost control boards on the market, they ...