The ICM870 series soft starts ARE compatible with 2-stage HVAC units. If your 2-stage unit has two compressors, you will need two ICM870 units. The ICM870 Soft Start is intended for residential, commercial, RV & marine applications. The ICM870 integrates compressor or motor in-rush current over startup time, thus reducing peak current demand on a power supply source by up to 70%. Effectively reducing power draw to the A/C, the ICM870 utilizes a built-in self learning algorithm to deliver the optimal in-rush current per application. The ICM870 will monitor system health including voltage, current, compressor startup and integrity. Upon a fault condition, it will halt operation and initiate a 3 minute anti-short cycle routine while providing diagnostic fault information by means of an LED indicator.
ICM™ Soft Starter, Series: ICM870 Series, 120/240 VAC, 9/16 A, -40 to 131 deg F, 7.94 in L x 4.2 in W x 2.1 in H, Additional Information: 0 to 95% Non-Condensing Humidity, IP65, NEMA 4X Enclosure, 7.36 x 2.97 in Crew Hole Center Point
Instruction/Installation Manual
Video Link- Reduces in-rush current/draw necessary at startup by up to 70%
- Prolongs the life of A/C by reducing excessive torque, wear and tear
- Reduces loud noises, light flickering, and breaker trips
- Built-in dynamic start delay
- Built-in self-learning algorithm
- Over-current protection
- Over/under voltage monitoring
- Built-in start capacitor
- LED fault indicators
- Ultrasonically sealed tamper-proof enclosure
- Installation hardware is included