York S1-025-35306-000 Flame Sensor

The York S1-025-35306-000 is a flame sensor crucial for the safe operation of gas-fired HVAC equipment, particularly York furnaces and boilers. It detects the presence of a flame within a range of 0-20 feet and transmits a signal to the control board. This rapid response, occurring between 0.5 and 5 seconds, ensures the system only operates when a flame is present. Made to withstand harsh environments, the sensor functions reliably in temperatures ranging from -40°C to 85°C. It operates on a 24V power supply and transmits a signal between 0-100mV depending on the flame strength. The compact size, at just 1 inch, allows for easy installation in various locations within the heating system.