Lennox 45A00 Potential Relay

The Lennox 45A00 Potential Relay is an essential part of HVAC systems. In other words, it is a complex relay that regulates high voltage circuits. The relay gets a low voltage signal from the control board of the system. When this signal reaches a certain condition, for instance, a call for cool air, the relay switches on. This activation then completes a second high voltage circuit, normally to the compressor motor. This relay is essential in making sure that the compressor is running well in optimum condition. The separation of the low voltage control circuit from the high voltage power circuit reduces the chances of electrical issues.