Lennox 36W77 Pressure Switch Assembly 2-Stage

The Lennox 36W77 2-Stage Pressure Switch Assembly, which is an essential component of your HVAC system. It serves as a safety mechanism in that monitors for pressure variation in the air. When pressure gets to a certain level normally for high and low levels, the switch activates the system to change operation. This assists in avoiding harm from high pressure and in addition, it offers the better comfort by making sure that quality air flow is in place. a low-stage for low noise level and a high-stage for high heating or cooling rate.