42" air pressure switch (1

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

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

Penguin II

making it a versatile component for both residential and commercial HVAC gas valve replacement projects

Lennox 97J69 Pressure Switch 328140-751 42" air pressure switch (1The 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