Lennox 97W21 Pressure Switch 318172-701 Optimal Component Protection: Acts as

Optimal Component Protection: Acts as a durable shield against contaminants that can degrade internal HVAC system performance

A 1/8-inch bead of high-temp RTV silicone (rated for at least 500°F) is required around the flange to prevent exhaust leaks and ensure the induced draft motor pulls a proper vacuum

it is intended to support the installation or repair of larger assemblies

Horizontal Orientation: Stable mounting design prevents flame lifting or shifting during high-airflow starts

orchestrating the system communication between thermostats

Lennox 97W21 Pressure Switch 318172-701 Optimal Component Protection: Acts asThe 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,