Lennox 92L21 Pressure Switch The assembly features a 1/2"

The assembly features a 1/2" NPT conduit connection with 18-inch flying leads

effectively maintaining system chemistry and thermal efficiency across varying load conditions

The S1-024-40872-000 is the current official successor to the 9371VO-BS-0026

it drops into existing mounting configurations without modification

Why is an insulated base door necessary for boiler safety

Lennox 92L21 Pressure Switch The assembly features a 1/2"Replace your faulty inducer safety circuit with the Lennox 92L21 Pressure Switch, a precise OEM furnace replacement part cataloged under Lennox R20293412. This single pole single throw (SPST N. O.) switch is factory calibrated to actuate at 1. 61" W. C., ensuring the draft inducer motor maintains the specific static pressure required for safe combustion and flue gas venting. Designed with dual 1 4" barb connections, this component provides a secure