Lennox 24L22 Pressure Switch

The Lennox 24L22 is a Pressure Switch, a safety device that is installed in furnaces to measure and regulate the pressure in the system. This switch measures changes in the pressure of air in the furnace especially in the inducer assembly to check that the airflow is okay before the ignition to avoid any dangerous operations. When pressure is low, the switch shuts off the furnace cycle to prevent danger, such as overheating or leakage of carbon monoxide. This precision control helps maintain efficient, safe furnace operation while at the same time minimizing energy use. Improving airflows, increases system dependability and durability, making it an essential element involved in residential and light commercial HVAC systems.