Beyond standard wear

Smith and Lochinvar technical assemblies

A thermocouple generally powers the safety magnet in the valve to keep the pilot lit

Installing a blade with a different pitch than the specified 38 degrees can lead to motor overloading or insufficient airflow

this hard start kit with relay is a versatile replacement for many common industry models

Lennox 97J69 Pressure Switch 328140-751 Beyond standard wearThe Lennox 97J69 Pressure Switch is a critical safety component designed for specific Lennox furnace models to monitor induction blower performance and flue venting integrated within the combustion circuit. This SPST (Single Pole Single Throw) vacuum switch is factory calibrated to a . 85" WC (Water Column) set point, ensuring the system only initiates the ignition sequence when proper static pressure is established. Featuring a standard 1 4" barb