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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
The durable construction is built to withstand the typical environment of an evaporator coil section
ensuring reliable signal switching in demanding environments like York fan coil units and air handlers
If your circuit requires a changeover contact or a normally closed position
Its non-electrolytic build ensures the unit remains corrosion resistant even when exposed to salts
clogged return air filters
York S1-024-21678-700 Relay The durable construction is builtThe York S1 024 21678 700 is an OEM 24V SPDT Relay designed for heavy duty switching in residential and commercial HVAC control systems. This component serves as the direct 024 21678 000 replacement, ensuring seamless integration into existing control boards without requiring circuit modifications. Engineered with a 24VAC 50 60Hz coil, this Single Pole Double Throw relay provides the necessary electrical isolation between low voltage thermostat
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