This is a safety feature used to distinguish high-voltage primary lines from 24V secondary lines

reducing wear on internal mechanical components

it significantly reduces contact bounce to under 15 microseconds

or hot gas defrost service where precise electronic control is a requirement

Is the electrode gap adjustable

York S1-373-11099-700 Gas Valve R-410A This is a safety featureThe York S1 373 11099 700 is an OEM intermittent pilot gas valve designed for high performance natural gas heating applications. This HVAC gas control valve operates on a standard 24VAC furnace valve circuit (60 Hz, 0. 5A) and is engineered for precise fuel regulation in residential and commercial units. Featuring a dual automatic operator configuration, the valve includes an integrated pilot tube to ensure consistent flame ignition across various