York S1-024-20870-000 Relay How do I test this

How do I test this switch

This well is designed for standard 3/8-inch or 1/2-inch diameter sensing bulbs commonly found on commercial aquastat controllers and limit switches

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ensuring consistent 24 VAC output across varying line conditions

York S1-024-20870-000 Relay How do I test thisThe York S1 024 20870 000 is an OEM 24V SPDT Relay designed for precision switching in residential and light commercial HVAC equipment. Engineered as a direct replacement for York furnace relays, this component features a Single Pole Double Throw (SPDT) configuration, allowing for control over both normally open and normally closed circuits. It is a critical component for managing HVAC blower motor control and sequenced operation. Operating on a 24