York S1-373-19801-420 Wiring Harness 318518-761 Code Compliance: Establishes the necessary

Code Compliance: Establishes the necessary physical air gap to meet backflow prevention accessories standards for health hazard containment

and METASYS N2

The spring return is a mechanical safety feature that automatically moves the damper to its "home" position if electricity is lost

effectively preventing system damage due to localized overheating

Diagnosing the underlying cause of the overheat is required to ensure safe equipment operation

York S1-373-19801-420 Wiring Harness 318518-761 Code Compliance: Establishes the necessaryFor service technicians maintaining gas furnace and package unit systems, the York S1 373 19801 420 Wiring Harness provides a reliable 8 wire configuration specifically engineered for high durability internal circuitry connections. As a genuine OEM York replacement part, this harness ensures precision terminal alignment and maintains the electrical integrity of the system's control logic. It is commonly utilized in specific residential furnace models,