ICM ICM325A
ICM ICM325A
ICM Controls ICM325A — Single-Phase Universal Head Pressure Control (Low-Ambient Fan Speed Control)
Keep A/C and heat pump systems running smoothly in cold weather with the ICM325A. This universal head pressure control modulates condenser fan speed to maintain stable head pressure, preventing nuisance trips and compressor stress during low-ambient operation. Unlike simple on/off fan controls, the ICM325A delivers smooth, proportional speed control for consistent performance and quieter operation.
Key benefits
- Maintains target head pressure by varying condenser fan speed for reliable low-ambient cooling and heat-pump operation.
- Helps reduce evaporator freeze-ups, low-pressure cut-outs, and liquid slugging for longer equipment life.
- Heat-pump bypass input for full-speed operation in heating mode; jumper-selectable reversing-valve (cool-active/heat-active).
- NFC setup via the ICM OMNI app—tap to configure setpoints quickly, no wires or power required.
- Works across a wide range of systems with universal line and control voltages.
Applications
- Residential and light-commercial A/C condensers and heat pumps requiring dependable low-ambient operation and precise head-pressure control.
Technical specifications (summary)
- Line voltage: 120–600 VAC, 50/60 Hz
- Control voltage: 24–240 VAC (jumper-enabled)
- Max motor load: Up to 10 A (can control more than one motor within total rating)
- Operating temp: −40°F to +167°F (−40°C to +75°C)
- Sensor options: Inputs for two temperature sensors or two pressure transducers
- Reversing-valve input: 24–240 VAC (heat-active default; jumper-selectable cool-active)
Replaces / cross-references (select)
- Johnson Controls P66 series
- Ranco E31 series
- Hoffman 800-series controls
- ICM single-phase head-pressure controls including ICM325H, ICM325HNV, ICM326HN, ICM327HN, ICM333, and legacy LAQS series
Why choose the ICM325A
- Smooth proportional control eliminates overshoot common to on/off and pressure-switch methods, improving comfort and reducing mechanical stress.
- Fast, phone-tap configuration with NFC shortens install time and simplifies service.
What’s in the box: ICM325A controller (sensors/transducers sold separately; pair with ICM pressure transducers such as ICM387 for pressure-based control).
Low Ambient Single Phase Condenser Fan speed control with communications
| Package Quantity | 1 Item |
|---|---|
| Item Returns | This item can be returned |
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