ICM Controls ICM275C Fan Blower Control

The ICM275C Fan Blower Control is a microprocessor-based controller for gas furnaces, delivering precise blower management for reliable ignition and consistent airflow. It accepts 18–30 VAC input and fits in a compact 5.5 in x 5.5 in x 0.875 in enclosure, suited for tight installation spaces. Operating range spans -40 to 176°F, making it suitable for varied climates and furnace environments.

UL approved for both the US and Canada, this gas furnace control provides robust safety and compatibility. It offers high and low outputs at 240V AC: 20 A in High and 10 A in Low, supporting different blower configurations. Time-delay features include a 60-second fixed Heat ON delay, a 60–240 second adjustable Heat OFF delay, and a 90-second fixed Cool OFF delay for stable furnace cycling.

Environmental resilience is ensured with a relative humidity rating of 95% non-condensing at 50°C. Includes manually adjustable controls for field tuning and system optimization, enabling technicians to tailor performance to the installation.

• Microprocessor-based fan/blower control for precise furnace operation
• 18–30 VAC input for flexible power compatibility
• Compact enclosure: 5.5 in x 5.5 in x 0.875 in
• UL listed for US and Canada
• Output ratings: 20 A at 240 V (High), 10 A at 240 V (Low)
• Time delays: Heat ON 60 s fixed; Heat OFF 60–240 s adjustable; Cool OFF 90 s fixed
• Operating temperature range: -40°F to 176°F
• Humidity tolerance: 95% RH non-condensing at 50°C
• Includes manually adjustable controls