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Broad Compatibility: Replaces multiple legacy part numbers including HH19ZA440 and P331-2143
Key Benefits OEM Compatibility: Guaranteed fit for York
effectively mitigating risks associated with furnace short cycling or restricted airflow
This kit focuses on the integral backflow prevention components
it is designed to limit current naturally under fault conditions
Armstrong International D24660 Operator Els PW 17895 Broad Compatibility: Replaces multiple legacyThe Armstrong International D24660, also identified as part number 6005640, is a heavy duty LV 4 Direct Valve Mounted Thermostatic Operator engineered for precise hydronic temperature control. This unit features a high sensitivity liquid filled sensor that provides superior responsiveness to ambient temperature fluctuations compared to standard wax filled alternatives. Designed for seamless integration with Armstrong radiator valves, the D24660
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