vibration-resistant fit to prevent intermittent operation

and the control signal to terminal 3

consistent 120V ignition trials

Smith Cyclone models requiring a standard thermostat bulb well

provided the physical footprint and 120V coil voltage match

Lennox 21G88 Disconnect Switch 321702-401 vibration-resistant fit to prevent intermittentThe Lennox 21G88 Disconnect Switch is a heavy duty, 3 pole electrical safety component engineered for high demand industrial and commercial HVACR applications. Rated for 600V 150Amp service, this unit provides a reliable manual breaking point to isolate 3 phase power during critical system maintenance or emergency repairs. Built with a rugged steel housing and a high conductivity copper alloy contact system, the 21G88 is designed to withstand the