Description
The ICM Controls ICM275C Fan Blower Control Board is a microprocessor-based regulation module for HVAC systems to manage the operation of circulating fans in furnaces air conditioners and heat pumps. It provides dual on/off delay timing, including a fixed heat-on delay and an adjustable off delay ranging from 60 to 240 seconds, allowing proper air circulation and duct purging after operation. Commonly installed in residential and commercial forced-air systems, it monitors safety switches and performance. This plays a key role in coordinating fan operation, supporting system efficiency, and maintaining consistent airflow.
