Lennox 80W51 Pressure Switch 0.55" W.C.

The Lennox 80W51 is a single-stage pressure switch, a crucial component in HVAC systems that ensures safe and efficient operation. It monitors air pressure within the system and triggers electrical components based on preset levels. For instance, it can turn on a furnace fan when air pressure drops below a safe limit, or shut it off when pressure gets too high. This helps prevent damage to the equipment and maintains optimal airflow. The Lennox 80W51 is compatible with 24V systems and weighs a mere 0.18 pounds. Its single-stage design means it has one setpoint pressure level. The SPST-N.O. (Single Pole Single Throw - Normally Open) contact configuration signifies that the circuit remains open until pressure reaches the setpoint. When that happens, the switch closes to complete the circuit and activate the connected equipment.