Capacitor requirements vary by specific unit revision

Industrial-Grade Efficiency: Optimized for 277V circuits to provide reliable HVAC performance with minimal amp draw and heat generation

or oil auxiliary heating

automatically resets to "auto" once power is restored

Including a critical 028-16569-000 O-ring for a secure

Lennox 71W43 Limit Switch 320788-704 Capacitor requirements vary by specificThe Lennox 71W43 Limit Switch is a critical safety component designed for precise thermal regulation within residential and commercial furnace assemblies. This OEM Lennox replacement part, also identified as the L140 30F limit control, is engineered to monitor heat exchanger temperatures and interrupt the electrical circuit if internal heat exceeds safe parameters. With a fixed 140F opening temperature and a 110F automatic reset, this switch ensures