ICM CONTROLS ICM870-32A Soft Starter User Guide

: June 12, 2024
: ICM CONTROLS

Table of Contents

ICM CONTROLS ICM870-32A Soft Starter
Product Information
Product Usage Instructions
FEATURES
SPECIFICATIONS
IMPORTANT SAFETY INFORMATION
WIRING DIAGRAM (GENERAL LAYOUT)
INSTALLATION
Documents / Resources
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

ICM CONTROLS ICM870-32A Soft Starter

ICM-CONTROLS-ICM870-32A-Soft-Starter-product

Product Information

The ICM870-32A Soft Start is a motor controller designed for use in HVAC systems. It features starting current reduction and a self-learning algorithm to optimize performance. The soft start also includes a built-in start capacitor for smooth motor startup, over-current protection to prevent damage, over/under voltage monitoring for safety, diagnostic indicators for troubleshooting, and a sealed enclosure for durability.

It is suitable for use on a circuit capable of delivering not more than 5,000 rms symmetrical Amperes at a maximum voltage of 240V. It should be protected by a circuit breaker with a maximum rating of 40A, 240 volts.

Installation of the ICM870-32A soft start must be done by a certified HVAC technician or licensed electrician, following local, state, and national electrical codes.

Product Usage Instructions

Step 1: Disconnect the factory-installed compressor run wire from the common run capacitor / L2 terminal.
Step 2: Splice the ICM870 BROWN WIRE to the factory installed compressor run wire previously disconnected in step #1A. If there is a Start Capacitor and/or PTCR already in place, additional steps will be required to disconnect them.
Step 3: Connect the ICM870 RED WIRE to the run capacitor (c/common/L2) terminal.
Step 4: Connect or splice the ICM870 BLUE WIRE to the run capacitor terminal (herm/hermetic/start).
Step 5: Connect or splice the ICM870 BLACK WIRE to the contactor terminal (T1).

Please follow these steps carefully to ensure proper installation and operation of the ICM870-32A soft start. If you have any questions or need further assistance, please consult a certified HVAC technician or licensed electrician.

FEATURES

Starting current reduction and self-learning algorithm
Built-in start capacitor
Over-current protection
Over/under voltage monitoring
Diagnostic indicators
Sealed enclosure

SPECIFICATIONS

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

Overvoltage 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

UL 60947-1
UL 60947-4-2
Altitude: 2000 m
IP65
CSA 2 NO. 60947-1
CSA C22.2 60947-4-2

Solid state/relay

Current: 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: 94” x 4.20” x 2.10”
Screw hole center points: 36” x 2.97”

IMPORTANT SAFETY INFORMATION

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.

APPLICATION

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.

ICM870-32A COMPARABLE AMPERAGE CROSSES

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)
Carlo Gavazzi (Smooth Starter) – SS230V1P16-32

STANDARD AND TEST RESULTS

UL 60947-1
UL 60947-4-2
Altitude: 2000 m
IP65
CSA 2 NO. 60947-1
CSA C22.2 60947-4-2

LED INDICATORS

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

FLASH CODES

Flashes	Flash Conditions
1	High or low voltage
2	Compressor not sensed or open fuse
3	High current
4	Compressor start error
5	Invalid operating frequency
Rapid	Normal start delay active

WIRING DIAGRAM (GENERAL LAYOUT)

$ICM-CONTROLS-ICM870-32A-Soft-Starter- fig- $1$$

INSTALLATION

Step #1 Connect the (ICM870 RED WIRE) > to the run capacitor terminal (c/common/T2)
Step #2
- Disconnect factory installed compressor run wire from the contactor terminal (T2/L2)
- Splice the (ICM870 BROWN WIRE) > to the compressor run wire previously disconnected in (Step 2A)
- If there is a Start Capacitor and or PTCR already in place, additional steps will be required to disconnect.
Step #3 Connect the (ICM870 BLUE WIRE) > to the run capacitor terminal (herm/hermetic/start)
Step #4 Connect or splice the (ICM870 BLACK WIRE) > to the contactor terminal (T1)

WHICH MODEL DO I NEED?

ICM870-9A: For AC’s with a Compressor Rated Load Amps (RLA) of up to 9A
ICM870-16A: For AC’s with a Compressor Rated Load Amps (RLA) of 9.1-16A
ICM870-32A: 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 you user manual or service panel to determine your actual RLA before deciding which model ICM870 you need.

WIRING DIAGRAM (GENERAL LAYOUT) $ICM-CONTROLS-ICM870-32A-Soft-Starter-fig- $2$$ INSTALLATION

Step #1
- Disconnect factory installed compressor run wire from the common run capacitor / L2 terminal
- Splice the ICM870 BROWN WIRE > to the factory installed compressor run wire previously disconnected in step #1A.
- If there is a Start Capacitor and or PTCR already in place, additional steps will be required to disconnect them.
Step #2 ICM870 RED WIRE > to the run capacitor (c/common/L2) terminal
Step #3 Connect the ICM870 BLUE WIRE > to the run capacitor (herm/hermetic/start) terminal
Step #4 Splice the ICM870 BLACK WIRE > with the factory install compressor Overload Switch wire (OL/L1)