Icm Controls icm221 24V Compressor Protection Board

Product Description

The ICM Controls ICM221 is a 24V compressor protection board designed for use in residential and light commercial HVAC systems. This control board monitors the compressor and helps prevent damage caused by short cycling, rapid restarts, and voltage irregularities. HVAC technicians rely on compressor protection boards like the ICM221 to extend the life of compressor units and reduce costly field callbacks. Short cycling is one of the leading causes of compressor failure. When a compressor tries to restart too soon after shutting off, it faces elevated head pressure that strains the motor windings and refrigerant circuit. The ICM221 addresses this by introducing a time delay on restart, giving the system time to equalize pressure before the compressor starts again. This type of control board installs directly into 24V control circuits, making it compatible with a wide range of split systems, heat pumps, and packaged units. The 24V signal circuit is standard across most residential and commercial HVAC equipment, so the ICM221 integrates easily without rewiring the high-voltage side of the system. Installation is straightforward and requires basic tools. Terminals are clearly labeled to simplify field wiring. HVAC service technicians, installers, and facilities maintenance professionals all benefit from having a reliable compressor protection board in the system. Protecting the compressor means protecting the most expensive component in the refrigeration circuit. The ICM Controls ICM221 is a practical, cost-effective solution for compressor protection in cooling and heat pump applications. It is a direct fit for many OEM applications and works as a universal replacement in others.

• Provides time delay on restart to prevent compressor short cycling
• Operates on standard 24V control circuits for broad HVAC compatibility
• Helps protect compressor motors from damage caused by rapid restarts and pressure imbalance

Product Highlights

The ICM Controls ICM221 24V Compressor Protection Board delivers reliable short-cycle protection for residential and light commercial HVAC compressors. It installs easily into standard 24V control circuits and helps extend compressor service life.

Product Information

Standard Information

• Brand: ICM CONTROLS
• Manufacturer Part Number: icm221

Technical Specifications

• Control Voltage: 24V
• Application: Compressor protection and short-cycle prevention
• Compatible Systems: Residential and light commercial split systems, heat pumps, packaged units