Carrier HT01BB116 Transformer

As an HVAC technician, you know that a reliable 24V secondary signal is the backbone of any control circuit. The Carrier HT01BB116 Transformer is an OEM replacement part designed for precise voltage regulation in Carrier, Bryant, and Payne furnaces and air handlers. This 115V to 24V step-down transformer is rated at 30VA, providing the necessary power for contactors, induction motors, and circuit boards without the risk of over-saturation. With a primary voltage of 115V AC and a secondary output of 24V AC, this Class 2 transformer ensures a stable 24-volt control wire connection, maintaining the integrity of the thermostat signal even during peak load cycles. Its compact HCT series footprint allows for easy installation in tight electrical cabinets, making it a standard HVAC replacement part for field repairs.

• OEM Compatibility: Precision-engineered for Carrier, Bryant, and Payne equipment to ensure seamless integration with HVAC control boards.
• Stable 30VA Rating: Provides efficient 24V power supply for low-voltage control circuits without excessive heat generation.
• Rugged Construction: Built to meet Class 2 transformer standards, protecting sensitive downstream components from primary surges.
• Standard Lead Wiring: Features color-coded 18 AWG leads for fast, accurate 115V primary to 24V secondary wiring in the field.

Can I use this to replace a 40VA transformer?
It is recommended to match the VA rating of your existing unit. While a 30VA transformer like the HT01BB116 is common, moving to a lower VA rating can lead to premature failure if the total load exceeds 1.25 amps. Always check the total draw of your contactors and relays.

What are the wiring colors for this model?
In a typical 115V application, the black and white wires serve as the primary 115V supply, while the blue and yellow (or red) wires provide the 24V secondary output to the control board.

Is this compatible with 208V or 240V systems?
No, the Carrier HT01BB116 is specifically designed for 115V primary input. Using this on a 208/240V circuit will cause immediate failure of the windings.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.