GE ECM by REGAL-BELOIT 2.3 Series Description The family of ECM 2.3 motors is a continuation of the 2.0 product with improvements in moisture resistance and line transient suppression. The product serves the indoor blower market for almost all residential HVAC systems and many commercial air distribution systems. Their wide speed range, high efficiency and programmability give them a virtually unlimited range of performance characteristics, which results in a highly reliable, field-proven, convenient package. The ECM 2.3 allows you to imagine and implement possibilities that no conventional induction motor, or competing variable-speed technology could provide. The product is offered in a wide range of specifications. Features and Benefits Ultra-high efficiency • ECM 2.3 efficiencies are as high as 82%. At full load, the ECM 2.3 is 20% more efficient than a standard induction motor. At low speed, the ECM is over 30% more efficient than a standard induction motor. On constant fan speed, the ECM consumes 60-80 Watts as compared to 400 watts for the induction motor. What's more, its permanent magnet, DC design allows it to maintain its efficiency over its wide speed range. New moisture resistant design • ECM 2.3 addresses the most common problem today in forced-air systems – moisture. GE Commercial Motors by Regal-Beloit is now encapsulating the motor's sensitive control to prevent water from reaching its electronic components. In fact, the ECM stands up to more than 600 hours of ASTM-B117 salt-spray testing. Programmability Just one motor can optimize your system performance and minimize your inventory. Programming options for the ECM 2.3 include rotation direction, start/stop ramp rates, on/off blower delays and many other functions – all stored in the motor's memory. Even its speed and torque characteristics can be customized to meet specific performance requirements. As a result, programmability means lower inventory because one motor can serve many applications. Easy installation and service The ECM 2.3 is designed to be easy to install, troubleshoot and service. There is no need to go to the motor for setup. In fact, there are no dip switches or adjustment terminals on the ECM 2.3. The system manufacturer can locate all connections required for setup in any convenient location. When it comes to service, the 2.3 is designed so its electronic controller can be replaced without removing the motor from the blower mounting, which greatly reduces service time and cost. Self regulating constant airflow Unlike a conventional blower motor, which is designed to operate at one speed, the ECM variable-speed motor can run in a wide range of speeds. That's important because blowers need to adjust speed to deliver the airflow needed by the system. GE Commercial Motors by Regal-Beloit's patented constant airflow technology can be programmed to deliver constant airflow into a wide range of external static pressures in an air distribution system. This is all accomplished without the use of external sensors. Some benefits of constant airflow: improved air distribution throughout the static pressure range, improved indoor air quality with the use of high efficiency air filters and low speed constant fan operation which not only saves money but lessens the temperature stratification that can be common in multilevel homes. Low audible noise The most frequent praise given ECM powered systems by customers is how quiet they are. The 3-phase motor construction results in very low torque ripple. GE Commercial Motors by Regal-Beloit's patented resilient rotor construction effectively eliminates noise transmitted through the shaft. The ECM's ability to be programmed to slowly ramp up to speed eliminates the abrupt change in sound found when an induction motor HVAC system cycles on and off. Ultimate comfort systems are typically designed to take advantage of the ECM low speed efficiency at first stage operation and continuous fan speeds, further reducing audible noise. Variable speed or thermostat mode operation In variable speed (VSpd) mode a user supplier external control circuit determines the operating point of the unit. Control information is sent via a pulse width modulation (PWM) signal. Within the operating limits of the unit, the PWM signal has complete control of the speed, torque or airflow produced. In the thermostat (Tstat) mode, the operating point of the unit is determined by the internal microprocessor control circuit in direct response to the status of the various control input lines. In this mode, the ECM 2.3 requires no external electronic circuitry or PWM signal. The unit responds directly to the thermostat signals and other control lines in a user pre-determined manner. Applications • Single-stage, two-stage, and variable-capacity furnaces • Air Handlers • Energy-recovery ventilators • Powered filter units • Unit ventilators • Geothermal heat-pump systems • Commercial fan-powered terminal units Back to Residential Products Page Back to Commercial Products Page For more information, contact: GE Commercial Motors By Regal-Beloit 1946 West Cook Road Fort Wayne, Indiana 46818 Phone (260) 416-5400 Fax (260) 416-5460 GE is a trademark of General Electric Company and is used under license to REGAL-BELOIT CORPORATION.