SNYDER GENERAL FAN AND LIMIT SWITCH PARTS

The Snyder General fan and limit switch controls the on and off position in furnace units. By monitoring temperature, it provides a high temperature safety limit. The Snyder General fan and limit switch is actually two switches that turn the furnace blower on and off. This is based on the temperature of the heat exchanger. A helical bi-metal probe extends at the back of the Snyder General fan and limit switch. The bi-metal of the probe reacts to the temperature inside the heat exchanger.

The bi-metal twists when the furnace heat exchanger heats up, causing the round dial to turn. When it reaches the right temperature, the Snyder General fan and limit switch closes and the furnace blower motor turns on. This gives a time delay for the fan to come on in which the furnace heat exchanger is allowed to heat up. This process limits cold air from being blown out of the ducts when the furnace blower first starts. When the burners go out and no heat is left, the bi-metal and Snyder General fan and limit switch cools. The bi-metal then starts to dial the other way around. As soon as the temperature in the furnace heat exchanger cools down and the bi-metal reaches the lowest temperature set on the dial, the Snyder General fan and limit switch opens and the blower shuts off. This allows the excess heat in the furnace heat exchanger to be removed, and makes use of the usable heat produced by the furnace.

The Snyder General fan and limit switch uses as much heat as possible in the heat exchanger. This process adds efficiency to the furnace. The Snyder General fan and limit switch is a safety feature in all furnaces it equips. Heating systems, especially furnaces, should be installed with parts made from high quality materials. The safety of the users is at risk when heating parts that are not durable and reliable like the Snyder General fan and limit switch are installed. This product will surely protect users from any possible problems occurring in a heating system.