Carrier SYSTXBB4ZC01 Damper Control R-134A While this is a dual-rated

While this is a dual-rated unit for both the compressor (Herm) and fan

this HVAC replacement part ensures your rooftop unit or air handler operates at peak efficiency by adjusting the mass flow of refrigerant in real-time response to evaporator load changes

this component ensures seamless mechanical and electrical compatibility within Aaon rooftop units and chillers

making it compatible with 750mV and 30mV spark-to-pilot or standing pilot control loops

Carrier SYSTXBB4ZC01 Damper Control R-134A While this is a dual-ratedThe Carrier SYSTXBB4ZC01 Damper Control is a critical 4 zone expansion module engineered for seamless integration with Carrier Evolution HVAC systems. Designed for professional HVAC zoning system installation, this 24V electronic control module manages airflow via motorized dampers to eliminate hot and cold spots throughout a residential or light commercial structure. As a veteran grade zoning system control board, it utilizes the proprietary four