Lennox 10M79 L140-40F Limit Switch

The Lennox 10M79 L140-40F Limit Switch is safety device utilized in HVAC systems especially in furnaces to measure and regulate temperature. This particular limit switch is set for onset at 140°F and for recycling at a temperature of 100°F so that the heating system does not overheat. If the temperature goes beyond the set limit, the switch breaks the circuit a general supply of electricity to the furnace to avoid getting overheated and or damaged. Its working maximizes the safety of the furnaces and other related components because it conserves them from heat-related abuse.