Lennox 47L19 Limit Switch 322838-752 Diagnostic-Ready: Dual 1/8" NPT pressure

Diagnostic-Ready: Dual 1/8" NPT pressure taps allow technicians to verify manifold pressure quickly during gas valve troubleshooting

Versatile Compatibility: Designed to manage unit heaters

01 PPM to prevent system-wide contamination

With its backlit full-color touchscreen interface and 7-day programming capability

Constructed for longevity and precise fitment

Lennox 47L19 Limit Switch 322838-752 Diagnostic-Ready: Dual 1/8" NPT pressureThe Lennox 47L19 Limit Switch is a critical OEM replacement part designed for precise thermal regulation in residential and commercial furnaces. As an auto reset limit switch, this 36T series disc style component operates on a normally closed circuit, ensuring the burner assembly remains functional only within safe operating parameters. When the internal plenum temperature reaches the 185F high limit threshold, the switch opens, breaking the circuit