utilizing the same mounting footprint and wiring logic

this component should be installed and calibrated by a licensed technician to ensure the reset curve is properly aligned with the specific HVAC system requirements

Ensure all devices on the network share the same data format to prevent communication timeouts with the master controller

Featuring a robust aluminum body and industrial-grade NBR seals

including the Armor and Power-Fin series

Lennox 14A45 Pressure Switch R-407A utilizing the same mounting footprintThe Lennox 14A45 Pressure Switch is a high precision, two stage OEM furnace replacement designed to ensure safe ignition and optimal inducer airflow. This dual pressure switch is factory calibrated with specific set points of . 50" and . 90" WC, acting as a critical safety limit that confirms the draft inducer is pulling sufficient vacuum before allowing the gas valve to open. As a direct replacement for the legacy Lennox 103613 03 and UniControl