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Presentation on theme: "This material has been created and distributed for the purpose of education and to encourage best practices of the HVAC industry. The integrity of the."— Presentation transcript:

1 This material has been created and distributed for the purpose of education and to encourage best practices of the HVAC industry. The integrity of the industry we share is the responsibility of every one working in it, including its educators, to uphold the faith of the consumers who put their trust in us as professionals. The text and images in this power point are not to be modified without express written permission of Genteq. This power point as a whole may be used, but not sold, for educational purposes. This power point as a whole may be included in the bulk of other educational power point presentations. Portions of this Power Point including text in the form of sentences and/or paragraphs as written, and/or images may be used in the bulk of educational material without modification. All material including images used for this purpose must be accompanied by or noted in the footer of the slide or slides the material appears in with Courtesy of Genteq in Arial font as it appears here. This slide is hidden. It will not show up during presentation.

2 Whats with all the copyright stuff? Three main purposes of the copyrights: 1.Prevent the sale of as produced material we are creating and giving away to the HVAC educational community for individual profit. Including this information in your HVAC courseware is encouraged. 2.Prevent the information from being altered to be untrue, unsafe or out of the recommended best practices of the HVAC industry. 3.Simply be recognized for our hard work and efforts to provide quality information for the betterment of the HVAC industry. This slide is hidden. It will not show up during presentation.

3 The ECM Textbook

4 Table of Contents History of ECM Constant Airflow ECM Constant Torque ECM Constant Speed ECM

5 The ECM Textbook History of ECM v3.0

6 History of ECM Technology 1987 General Electric introduces first ECM to residential HVAC 2004 Regal Beloit purchases the ECM, PSC and Capacitor divisions from GE with permission to brand as: Page 1

7 Public Corporation established in History 50s to 70s - Special Cutting Tools 80s to 90s – Mechanical Power Transmission 90s to 00s – Motors and Generators Largest Non-Captive Motor supplier globally #1 Commercial and Industrial and #1 HVAC Recognized Motor Brands Regal-Beloit Corporation Background NYSE – RBC History of ECM Technology Page 1

8 History in the Making 2009 Regal Beloit introduces a new brand for all of the GE _______ by REGAL BELOIT divisions. History of ECM Technology Page 1

9 A wealth of information at your fingertips Page 2 History of ECM Technology New Name, same reputation for innovative, premium comfort and electrical components Proven reputation for high quality, highly reliable products and strong customer relationships

10 Overview of ECM Technology ECM (Electronically Commutated Motor) Brushless DC, permanent magnet rotor More efficient than PSC (Permanent Split Capacitor) motors Used throughout HVACR Programmable Direct drive fractional horse power motors ECM PSC Page 3

11 Overview of ECM Technology Mid 1900s PSC replaces shaded pole as standard Better starting torque and efficiency Low cost and simple Limited operation due to fixed motor poles, fixed supplied frequency (60 Hz), 3-5 speeds Slave to airside resistance PSC Page 3

12 Overview of ECM Technology PSC Motor Chart Synchronous speed = Frequency x 120 / Poles Rated Speed = Synchronous speed minus electrical and mechanical losses in the motor and load Operation range = The range the motor will typically operate at under load Page 4

13 Overview of ECM Technology PSC peak efficiency is 60% at design rated speed and load Efficiency degrades by load and speed changes Efficiency loss of the rotor Basic A/C motor design, rotor follows the rotating field (magnetic effect) in the stator PSC Page 4

14 Overview of ECM Technology ECM – Basic electric motor operated by a microprocessor based control Line voltage powers control, control operates motor from communication and programming Ability to control Torque, Speed or both Increased range of operation and efficiency More precise control than speed taps Ability to compensate for airside restrictions Page 5

15 Overview of ECM Technology Old definition –ICM (Integrated Control Module) Current definition –ECM (Electronically Commutated Motor) –Commutate – change or reverse the direction of an electric current (the means by which all electric motors rotate) Page 5

16 Overview of ECM Technology The Genteq motor, currently used by most residential HVAC systems is a brushless DC, three-phase motor with a permanent magnet rotor. Motor phases are sequentially energized by the electronic control, powered from a single-phase supply. Made of two components –Motor Control (control module) –Motor (motor control) Motor Control 3-Phase Motor Page 5

17 Overview of ECM Technology Motor Control and Motor as separate components Motor Control integrated into the motor shell Motor Control Motor Page 5

18 Overview of ECM Technology The Motor Control –Connected to single phase (1Ø) 120, 240 or 460vac 50 or 60 cycle power (Hz) –AC power is converted to DC power to operate the electronics –DC power is converted to a three phase (3Ø) signal to drive motor –Microprocessor controls frequency (RPM) and torque (power) delivered to motor. Motor Control Permanent magnet rotor Motor Page 6

19 Overview of ECM Technology The Motor Control –Microprocessor operates motor by program and communication from HVAC system AC or DC voltage, PWM or DSI –Unique features by program specific to each motor –Constant Airflow, Constant Torque, Constant Speed –Ability to monitor and control current and frequency –Typical operating range of rpm Motor Control Permanent magnet rotor Motor Page 6

20 Overview of ECM Technology The Motor –Three phase motor, permanent magnet rotor Electrical efficiency Brushless (Electronically Commutated) –80% electrically efficient across entire operating range Motor Control Permanent magnet rotor Page 6

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22 Overview of ECM Technology Genteq ECM motor types –Constant Airflow (Variable Speed) indoor blower motor Current OEM models include Think Tank 2.3 & 3.0, out of production models include 1.0, 2.0 and 2.5 –Constant Torque indoor blower motor OEM model X13 and aftermarket retrofit model Evergreen –Constant Speed Current outdoor fan motor OEM model 142 R, out of production model 142 Current commercial refrigeration models ARKTIC/ICE 59, ARKTIC SSC, and ARKTIC/ICE 142, out of production models include 44/64 frame, 58mm, 84mm, SSC and SSC 2 Page 7

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24 Overview of ECM Technology Benefit of Technology –Electrical Efficiency –Program more precise and controlled operation –Wider range of operation –Enhance consumer comfort Dehumidification Constant Fan Soft Start/Stop Improved Airflow Motor Control Permanent magnet rotor Page 8

25 Thats All Folks!


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