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this is the official replacement
it should be located in the same room and within 60 feet of the unit
While often used for the D
Constructed with a 1/2"-20 UNF-2A SAE external port and an Amp-style electrical connector
Carrier 50HJ680054 Conversion kit 321894-709 this is the official replacementThe Carrier 50HJ680054 controller conversion kit is a critical field installed component designed to facilitate the migration from legacy controls to updated logic on compatible Carrier rooftop units (RTU). This kit is specifically utilized to ensure seamless communication between the equipment and modern Carrier Comfort Network (CCN) protocols or standalone thermostat interfaces. By replacing obsolete board architectures, this carrier conversion kit
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