ICM CONTROLS ICM870-32A Soft Start Series Built In Start Capacitor User Guide
- October 30, 2023
- ICM CONTROLS
Table of Contents
INSTALLATION, OPERATION & APPLICATION GUIDE
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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
- Ue = 240 VAC
- Ui = 240 VAC
- Uimp = 4kv
- Pollution degree 3
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”
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 ICM87032A 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)
- Dometic (Smart Start)
- Network RV (Soft Start)
- Hyper Engineering (Sure Start)
LED INDICATORS
START = Green • RUN = Green • FAULT = Red (flashing)
FAULT CODES
| 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 |
FOR RESIDENTIAL A/C’s
WIRING DIAGRAM (GENERAL LAYOUT)
FOR RV & MARINE A/C’s
WIRING DIAGRAM (GENERAL LAYOUT)
Special attention should be made with respect to the termination of the field wiring leads. When these leads are terminated at a terminal, they shall terminate only at a terminal suitable for minimum 90°C wire.
INSTALLATION
Step #1 Connect the (ICM870 RED WIRE) > to the run capacitor terminal
(c/common/T2)
Step #2 a) Disconnect factory installed compressor run wire from the
contactor terminal (T2/L2) b) 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)
INSTALLATION
Step #1 a) Disconnect factory installed compressor run wire from the
common run capacitor / L2 terminal b) 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)
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.
Air Conditioning & Heat Pump Loads – Average
| Size | BTU | RLA | ICM870 Model |
|---|---|---|---|
| 1 Ton | 12,000 | 6 | 9A |
| 2 Ton | 24,000 | 12 | 16A |
| 3 Ton | 36,000 | 16 | 16A |
| 4 Ton | 48,000 | 22 | 32A |
| 5 Ton | 60,000 | 26 | 32A |
| 6 Ton | 72,000 | 32 | 32A |
7313 William Barry Blvd., North Syracuse, NY 13212
www.icmcontrols.com
800.365.5525
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