ICM Controls ICM870-32A Installation, Operation & Application Manual Download Page 1

ICM870-32A

Soft Start

START = Green  •  RUN = Green  •  FAULT = Red (flashing)

Semi-Conductor Soft-Start Motor Controller, Form 2, Bypassed Controller

• SCCR: 5kA 

• Uimp = 4kv

• Ue = 240 VAC 

• Pollution degree 3

• Ui = 240 VAC 

Input (L1, L2) – 100-240 VAC 50/60Hz
• Over voltage limits: 115 VAC nominal = 140 VAC,  

240 VAC nominal = 264 VAC 

• Under voltage limits: 115 VAC nominal = 95 VAC,  

240 VAC nominal =195 VAC

Outputs: Compressor
• Solid state/relay
• Current: Max. nominal = 32A
• Over current limits: ICM870-32A = 40A

Environmental:

• Ambient temperature: 

40°C @ 32 FLA, 8 hour duty

• Storage temperature: -40°F to 149°F (-40°C to 65°C)
• Humidity: 0-95% non-condensing
• Enclosure: IP65
• Dimensions: 7.94” x 4.20” x 2.10”
• Screw hole center points: 7.36” x 2.97” 

HIGH VOLTAGE WARNING – Always turn off power at the main 

service panel before installing.

CAUTION:

 

The ICM870-32A must be mounted in an area where it will 

not be exposed to water or the elements. Exposure of the ICM870-

32A soft start to water can cause failure of the control and is a risk for 

fire or other electrical safety hazards.
Suitable for use on a circuit capable of delivering not more than 5,000 

rms symmetrical Amperes, 240 V maximum when protected by a 

circuit breaker having not more than 40 A, 240 volts maximum
Installation of any ICM870-32A soft start must be done by a certified 

HVAC technician or licensed electrician. All installations are to be 

done in accordance with local, state, and national electrical codes.

The ICM870-32A is intended for Marine, Recreational Vehicle, HVAC 

and commercial applications. The ICM870-32A integrates compressor 

in-rush current over startup time, thus reducing peak current demand 
on a power supply source (generator or other). The ICM870-32A 

will monitor system health including voltage, current, compressor 
startup and self integrity. Upon a fault condition, the ICM870-32A will 

halt operation and initiate a 3 minute anti-short cycle routine while 
providing diagnostic fault information by means of an LED indicator.

The ICM870-32A model crosses to the comparable amperage models 

from the following manufacturer’s:
• Micro-Air (Easy Start) 

•  Network RV (Soft Start)  

• Dometic (Smart Start) 

• Hyper Engineering (Sure Start)

  Starting current reduction and 

self-learning algorithm

  Built-in start capacitor
  Over-current protection

  Over/under voltage 

monitoring

  Diagnostic indicators
  Sealed enclosure

• UL 60947-1
• UL 60947-4-2
• Altitude: 2000 m

• IP65
• CSA C22.2 NO. 60947-1
• CSA C22.2 NO. 60947-4-2

Fault Code

Fault Condition

1

High or low voltage

2

Compressor not sensed or open fuse

3

High current

4

Compressor start error

5

Invalid operating frequency

INSTALLATION, OPERATION & APPLICATION GUIDE

For more information on our complete range of American-made products – plus 

wiring diagrams, troubleshooting tips and more, visit us at www.icmcontrols.com

IMPORTANT SAFETY INFORMATION

SPECIFICATIONS

STANDARD AND TEST RESULTS

FAULT CODES

ICM870-32A COMPARABLE AMPERAGE CROSSES

FEATURES

APPLICATION

LED INDICATORS

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