Description
The Lennox 21L99 Flame Sensor is an essential safety device meant for installation in different Lennox HVAC systems to guarantee the safe use of heating appliances. This flame sensor identifies the existence of a flame in the burner assembly to ensure that the system can verify ignition and constant secure functioning. In the case where no flame is detected, the sensor sends a signal to the system to turn off the supply of the gas to avoid any danger of a leakage of the gas to the environment. It allows easy installation and connection to most Lennox furnaces and heating systems.
