Lennox 24W49 101021-04 Pressure Switch 0.70/1.05

The Lennox 24W49 2-stage pressure switch is a quality and energy efficient component of the HVAC system. It is only compatible with Lennox equipment. This switch regulates the pressure within the system and monitors the pressure within the system. When pressure falls to a certain low level then the switch signals to the furnace or air conditioner to switch on the first stage. When demand increases and pressure is on, at the high limit 1.05 units, the switch turns on the second stage of the system which enhances heating or cooling capacity.