31-inch diameter with a calibrated scale of 0 to 100

Industrial Durability: Engineered to withstand the vibration and thermal cycling common in commercial refrigeration systems

ensuring a straightforward fit during field replacements

The Incoloy stainless steel sheath provides superior corrosion resistance over standard copper elements

Engineered for continuous operation

Carrier HK61EA017 Circuit Board 321702-401 31-inch diameter with a calibratedThe Carrier HK61EA017 is a genuine OEM replacement furnace control board designed specifically for systems utilizing X 13 ECM motors. As a veteran technician, you know that precise airflow management is critical for system efficiency; this fan control circuit board serves as the direct HK61EA012 replacement, ensuring total compatibility with existing wiring harnesses and 24V control logic. Engineered for Carrier, Bryant, and Payne furnaces, this board