Lennox 58C97 Relay Els PW 17895 Installing it in a 120V

Installing it in a 120V circuit will cause improper calibration and potential damage to the heating element

feeding data to an AD1094 logger for BTU calculation and system optimization

Common culprits include a restricted exhaust vent

its universal design often accommodates standard 1/2-inch and 3/8-inch shaft interfaces used by various manufacturers

Lennox 58C97 Relay Els PW 17895 Installing it in a 120VThe Lennox 58C97 Relay is a high performance SPST Heat Sequencer Relay designed specifically for managing timed electrical sequences in residential and commercial HVAC systems. Operating on a 24V AC coil, this thermal delay relay provides critical staging for heating elements, blowers, and auxiliary components to prevent high current surges and ensure equipment protection. With a precise ON delay of 1 to 60 seconds and an OFF delay of 1 to 45 seconds,