58" WC set point

allowing the building automation system to monitor the actual valve position in real-time

matching the torque

maintaining system efficiency by ensuring accurate flow regulation in both residential and commercial heating circuits

Accurate Diagnostics: Large viewing ports allow for immediate identification of flash gas or bubbles in the liquid line

Lennox 73W18 Limit Switch 320788-703 58" WC set pointThe Lennox 73W18 Limit Switch (Model 102857 05) is an essential OEM replacement part designed for high precision thermal protection in residential and commercial heating cycles. This auto limit control switch features a STILT design and is specifically calibrated to actuate at 150F (cut out) and automatically reset at 120F (cut in), maintaining a strict 30 degree differential to protect the heat exchanger from overheating conditions. Built with a