ICM Controls ICM325A Pressure Control

Low Ambient Head Press Cntrl

ICM325A is the direct replacement for ICM325HN-LF, ICM325HNV-LF, CNT6622, CNT08566

ICM Controls ICM325A Pressure Control – Low Ambient Head Pressure Control for A/C & Heat Pumps

Ensure reliable performance and extended equipment life with the ICM Controls ICM325A Pressure Control. Designed for air conditioners and heat pumps, this innovative low ambient head pressure control provides superior fan speed modulation, preventing system inefficiencies and premature component failures.

Unlike traditional head pressure controls that simply turn the fan on or off, the ICM325A intelligently adjusts fan speed when system pressure drops too low or condenser temperatures fall too cold. This maintains stable head pressure, ensures consistent cooling, and reduces issues like rattling ducts, system leaks, and compressor stress.

Key Features & Benefits:

• Operates as a temperature or pressure-sensitive motor fan speed control

• Prevents evaporator freeze-ups, low-pressure cutouts, and liquid-slugged compressors in low ambient conditions

• Integral heat pump bypass circuitry for electronic bypass of speed control

• Eliminates overshoots common in standard on/off or pressure switch controls

• NFC-enabled (phone tap) with the ICM OMNI App for easy configuration

• Features include: hard start, low-temp bypass, isolated 24 VAC supply

• Controls up to 3 refrigeration circuits

• Universal compatibility with 120–600 VAC line voltage and 24–240 VAC control voltage

• RoHS compliant / lead-free design

Specifications:

• Product Type: Single Phase Control

• Applications: Air Conditioners, Heat Pumps

• Line Voltage: 120–480 VAC (Max: 10A / Min: 100 mA)

• Control Voltage: 24–240 VAC (jumper enabled)

• Frequency: 50–60 Hz

• Operating Temp Range: -40°F to +176°F

• Modulation Range: 70°F to +100°F

• Sensor Rating: 10K ohms at 77°F

Typical Applications:
Ideal for residential and commercial A/C and heat pump systems that operate in low ambient conditions, providing reliable fan control and maximizing the lifespan of critical components like compressors and condenser fan motors.

Upgrade your system with the ICM Controls ICM325A Low Ambient Head Pressure Control for smarter, more efficient cooling performance.