General Information :

L4029E Reset Limit Control opens a line or low voltage circuit if the air temperature reaches a critical level at controller location. The primary usage of the L4029E is as a fire thermostat in the ductwork of air conditioning and ventilating systems. If the circukated air reaches a temperature indicative of fire, the limit control shuts off the fan, preventing the fan from contributing to the spread of fire. It is also suitable for use with any warm furnace to provide positive lockout of the burner in the event of fan failure.

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