The ICM271C ICM Fan Blower Control is a Furnace Control Board designed for use with Carrier HH84AA020 models. It is manufactured by ICM and is compatible with other Carrier and ICM Controls products. This control board is a lightweight item weighing 0.45 lb, making it easy to install and operate in HVAC and refrigeration systems. With its specific model number (ICM271C) and compatibility with the HH84AA020 model, this control board is a reliable choice for maintaining and improving the performance of heating and cooling systems.