Lennox 12Y80 Sequencer 340155-7026 No Electricity Required: The piezo

No Electricity Required: The piezo ignition system ensures the unit functions independently of the local power grid

Key Benefits High Flow Capacity: Delivers a 5

Maintaining proper pressure monitoring with this HVAC pressure sensor is essential for protecting the heart of the cooling system and extending the service life of the equipment

Installation Flexibility: A setpoint visible through the cover and top-access adjustment screws simplify field calibration for various duct configurations

The Sporlan 109702 is specifically calibrated for the pressure characteristics of R134a

Lennox 12Y80 Sequencer 340155-7026 No Electricity Required: The piezoThe Lennox 12Y80 Sequencer (OEM part number 104284 03) is a critical thermal sequencer relay used to manage staged heating in Lennox electric furnaces and air handlers. As a DPDT normally open component, it acts as a timing controller for 24V circuits, ensuring that heating elements and blower motors activate in a staggered sequence. This staged operation is vital for preventing massive inrush current and potential electrical overload on the job site.