Can it control fan speeds automatically

This clear plastic thermostat cover provides a robust physical barrier against unauthorized adjustments

Automatic Reset Functionality: Minimizes nuisance service calls by automatically restoring power to the burner or heating elements once the high-limit condition is resolved

this is an auto limit switch

Lennox 93M09 Crankcase Heater Els PW 17895 Can it control fan speedsThe Lennox 93M09 Crankcase Heater is a critical OEM component designed to maintain optimal compressor lubrication in high voltage industrial HVACR applications. This belt type heater operates at 480 Volts and delivers 90 Watts of consistent thermal energy to the compressor housing. Engineered for versatility, it features an adjustable diameter range of 9 1 4" to 11", ensuring a snug, high contact fit for various scroll and reciprocating compressors.