Lennox 71W43 Limit Switch 323055-751 reducing system shock and improving

reducing system shock and improving thermal efficiency

Functioning as a direct acting day/night thermostat

All unused outlets must be securely plugged using the socket plugs provided in the kit to prevent gas leaks and ensure system pressure integrity

As long as the controller is configured for a PT1000 RTD input

It is a direct universal ignition replacement for various Honeywell

Lennox 71W43 Limit Switch 323055-751 reducing system shock and improvingThe 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