This is a safety feature typically triggered by gas valve failure

eliminating the need for terminal re-pinning or bracket modifications

preventing operation if a blockage occurs

OEM Integrity: Eliminates the risk of bypass or improper combustion seating common with aftermarket burner gaskets

this actuator serves as a direct replacement for all existing two-position PopTop applications

York S1-373-28293-000 Evase Panel R-22 This is a safety featureThe York S1 373 28293 000 Evase Panel is a critical OEM replacement part engineered specifically for high performance York HVAC systems. As a heavy duty evase insulated panel, it plays a vital role in maintaining the structural integrity and airflow dynamics of the unit. This industrial grade component is designed to restore factory spec HVAC system efficiency by ensuring a precise, airtight fit that prevents energy loss and optimizes static pressure