ICM Controls ICM870-32A Application/Install Guide

Brand: ICM Controls

Model: ICM870-32A

Type: Application/Install Guide

ICM Controls ICM870-32A is a soft start device designed to reduce starting current and protect compressors in HVAC and commercial applications. It features a built-in start capacitor, over/under voltage monitoring, over-current protection, and diagnostic indicators for easy troubleshooting. Suitable for use with compressors up to 32 FLA, it's compatible with various brands like Micro-Air, Hyper Engineering, Dometic, Carlo Gavazzi, and Network RV.





Green • Green • Red (flashing)



• SCCR: 5kA • Uimp = 4kv

• Ue =  VAC • Pollution degree 

• Ui =  VAC

(L1, L2) –  VAC Hz

•  VAC nominal =  VAC,

 VAC nominal =  VAC

•  VAC nominal =  VAC,

 VAC nominal = VAC



• 

• Max. nominal = 

• 



• 

40°C @  FLA, 8 hour duty

•  -40°F to 149°F (-40°C to 65°C)

•  0-95% non-condensing

•  IP65

•  7.94” x 4.20” x 2.10”

• 7.36” x 2.97”





CAUTION:The  must be mounted in an area where it will

not be exposed to water or the elements. Exposure of the 

















WARNING:





DYNAMIC

START DELAY

BUILT IN!

The  is intended for Marine, Recreational Vehicle, HVAC

and commercial applications. The  integrates compressor

in-rush current over startup time, thus reducing peak current demand

on a power supply source (such as a generator). The 

will monitor system health including voltage, current, compressor

startup and self integrity. Upon a fault condition, the  will

halt operation and initiate a 4-minute anti-short cycle routine while

providing diagnostic fault information by means of an LED indicator.

The  model replaces amperage-corresponding models

from the following manufacturers:

(EasyStart) (Sure-Start)

 (SmartStart) (Smooth Starter)



Starting current reduction and

self-learning algorithm

Built-in start capacitor

Over-current protection



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

 

High or low voltage

Compressor not sensed or open fuse

High current

Compressor start error

Invalid operating frequency

Rapid Normal start delay active



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

wiring diagrams, troubleshooting tips and more, visit us at 

IMPORTANT SAFETY INFORMATION

SPECIFICATIONS

STANDARD AND TEST RESULTS

FLASH CODES

ICM870-32A COMPARABLE AMPERAGE CROSSES

FEATURES

APPLICATION

LED INDICATORS



800.365.5525

7313 William Barry Blvd., North Syracuse, NY 13212



TYPICAL INSTALLATION

WIRING DIAGRAM FOR TRANE & AMERICAN STANDARD HVAC UNITS

INSTALLATION

So Start

R S

Remove the Compressor

Run Winding Wire from T2

of the Contactor and Splice

to the ICM870 Brown Wire

NOTE (Step 2A)

Compressor

Contactor

Control

Voltage

Line

Voltage

Coil

Compressor

Black

Blue

Brown

Splice

(Step 2B)

Red

Run

Cap

Legend:

S = Start

C = Common

H = Hermetic

R = Run

OL = Overload Switch

WIRING DIAGRAM (GENERAL LAYOUT) WIRING DIAGRAM (GENERAL LAYOUT)

 RESIDENTIAL A/C’s  RV & MARINE A/C’s

So Start

R S

L2L1

Compressor

Black

Blue

Brown

Splice

(Step 1B)

Red

Run

Cap

Legend:

S = Start

C = Common

H = Hermetic

R = Run

OL = Overload Switch

NOTE Remove the Compressor Run Winding Wire from

Common (C) of the Run Capacitor and Splice to the Brown Wire of

the ICM870 So Start

Step 1A

For Trane or American Standard units, T1 and T2 are labeled

dierently from Figure 1. Wire according to Figure 3 for those units.

 Connect the ( > to the run capacitor

). See Figure 3 for Trane and

American Standard.

 a) Disconnect factory installed compressor run wire from the

contactor terminal (). See Figure 3 for Trane and

American Standard.

b) Splice the () > to the compressor

run wire previously disconnected in (Step )

If

place, disconnect them prior to installing the ICM870.

 Connect the () > to the run capacitor



 Connect or splice the () > to the

contactor terminal (). See Figure 3 for Trane and American

Standard.

 a) Disconnect factory installed compressor run wire from the

 terminal

b) Splice the  > to the factory installed

compressor run wire previously disconnected in step #.



place, additional steps will be required to disconnect them.

 )

terminal

 Connect the  > to the run capacitor



 Splice the  > with the factory install

)

Special attention should be made with respect to the termination of the



WHICH MODEL DO I NEED?

 For AC’s with a Compressor Rated Load Amps (RLA) of up to 9A

 For AC’s with a Compressor Rated Load Amps (RLA) of 9.1-16A

 For AC’s with a Compressor Rated Load Amps (RLA) of 16.1-32A

This chart reflects average conversions of Single-Phase Air Conditioning

and Heat Pump Tonnage, BTU’s, HP, and RLA. Please refer to your user

manual or service panel to determine your actual RLA before deciding

which model  you need.



Size BTU RLA ICM870 Model

 Ton *   

 Ton   32A

 Ton   32A

 Ton   32A

*  for -ton units, use  if RLA exceeds 

NOTE: On American Standard and Trane

units, T1 & T2 are labeled dierently from

the ICM870 instructions. In those cases,

wire as seen below.

SPLICE red to brown

wire of ICM870

L2 L1

Compressor

Contactor

Black

Blue

Brown

Black

Purple

Red

Capacitor

Legend:

S = Start

C = Common

H = Hermetic

R = Run

OL = Overload Switch

ICM870

So Start

R S

Compressor

Orange

Coil

OUTDOOR

FAN

Figure 3

Figure 1 Figure 2

ICM Controls ICM870-32A Application/Install Guide

ICM Controls ICM870-32A Application/Install Guide

ICM Controls ICM870-32A Application/Install Guide

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