Lennox 15D57 Defrost Board W/ Sensor

The Lennox 15D57 Defrost Board with Sensor operates in heat pump systems to manage defrost cycles stopping frost accumulation on outdoor coils. This track temperature and system conditions to activate defrost mode only during necessary situations for maintaining operational efficiency. This part operates in both residential and commercial heat pumps to improve functionality and minimizing power usage and extending equipment durability. The specific nature of its operation maintains system reliability while simultaneously improving HVAC systems performance.