this fitting acts as the sensor interface and must be wired to a Warrick conductivity-based level control relay (such as the Series 16 or 26) to manage the pump or valve logic

and 40154B006 for seamless integration into Lennox HVAC systems

Common Questions How do I wire the A19AGF-31 for a cooling application

What are the signs that my pilot assembly needs replacement

it handles localized temperature spikes by breaking the circuit to the gas valve or ignition control once the threshold is breached

Lennox 24W50 Pressure Switch 328140-751 this fitting acts as theThe Lennox 24W50 Pressure Switch is a critical safety and performance component designed for two stage gas furnaces. This dual stage pressure switch features precise setpoints of . 90" WC and 1. 50" WC, ensuring the inducer motor maintains proper static pressure before the ignition sequence initiates. As a direct OEM furnace replacement part, it monitors the combustion air flow to prevent operation under hazardous venting conditions. In high