Carrier HT01AH851 Transformer 321702-401 Leak Prevention: High-tolerance threading and

Leak Prevention: High-tolerance threading and Rotalock design provide a superior seal compared to standard aftermarket alternatives

protecting expensive motor windings from premature failure

Durable Actuator: High-torque motor designed for reliable

facilitating efficient system starts and maintaining energy efficiency

A veteran tech will use a manometer to measure the actual draft pressure at the switch port

Carrier HT01AH851 Transformer 321702-401 Leak Prevention: High-tolerance threading andThe Carrier HT01AH851 is a high capacity 1000VA control power transformer engineered for demanding industrial and commercial HVACR applications. Designed for versatile power distribution, this unit features a dual voltage primary 240 480V side and a 120 240V secondary output, providing the necessary step down for control circuits, contactors, and high draw relays. As a genuine OEM HVAC replacement part, it ensures precise electrical characteristics