Honeywell Temperature Fan Limit Switch Control
Honeywell Temperature Fan Limit Switch Control – The fan limit control turns the fan on and off in furnace applications. It works off of temperature and also provides a high-temperature safety limit. This is a switch, actually two switches, which turns the furnace blower on and off based on the temperature of the heat exchanger.
A helical bi-metal probe extends from the back of the fan limit control. This probe is located inside the heat exchanger and the bi-metal of the probe reacts to temperature.
