York S1-2702-311P Flame Sensor this is a dedicated pneumatic

this is a dedicated pneumatic thermostat cover designed specifically for the mechanical TP9600 pneumatic series

the furnace will drop the flame signal or lockout entirely

Using an OEM furnace limit switch is highly recommended to ensure the mounting footprint and thermal response curve match the original safety specifications of the floor furnace

which may be caused by a dirty filter

allowing for high-density relay packaging in mechanical rooms or control panels

York S1-2702-311P Flame Sensor this is a dedicated pneumaticThe York S1 2702 311P is a precision engineered OEM replacement component essential for maintaining the flame rectification circuit in gas fired heating systems. Featuring a specific 90 degree bend, this HVAC flame rod is designed to sit directly in the burners path to detect the presence of flame via ionization. Manufactured with high grade alumina ceramic insulation and a durable metallic rod, the S1 2702 311P ensures that the furnace control board