Carrier HT680056 Transformer 320819-301 000 BTU/hr to support large

000 BTU/hr to support large commercial and residential boiler systems

allowing downstream pressure to vent when the set point is reduced

it serves as a fail-safe by interrupting the 24V control circuit to the gas valve if venting is compromised

monitoring the coil sensor and a selectable timer to ensure defrost only occurs when necessary

allowing for precise airflow calibration

Carrier HT680056 Transformer 320819-301 000 BTU/hr to support largeWhen you're out in the field and find a secondary side with no voltage, the Carrier HT680056 Transformer is the reliable OEM replacement part you need to restore the 24V control circuit. Built specifically for Carrier, Bryant, and Payne equipment, this 40VA HVAC transformer handles the step down from a 120V primary to a steady 24VAC secondary output. It is a critical component for powering furnace control boards, ignition modules, and 24V thermostats.