Lennox 97W21 Pressure Switch 321894-706 Utilizing a chrome-plated brass ball

Utilizing a chrome-plated brass ball and a robust brass stem

Always verify the wiring schematic and terminal designations before attempting a cross-brand installation

verify that you are using the high-close-off (AH) actuator

this part is engineered to monitor heat levels continuously

This exact-fit replacement ensures proper fuel-to-air combustion and optimal airflow across the three-section pass design

Lennox 97W21 Pressure Switch 321894-706 Utilizing a chrome-plated brass ballThe Emerson 1F95 0680 Blue 6 Inch Touchscreen Thermostat is a heavy duty, universal programmable thermostat built for commercial HVACR applications. Engineered for maximum flexibility, this 4H 2C digital control integrates seamlessly with single stage, multi stage, and heat pump systems, including high performance dual fuel heat pump setups. Its 6 square inch blue backlit display provides clear visibility for technicians and facility managers,