Evergreen EM ECM Commercial ECM Motor

Overview of the Evergreen Centimeters

  • Definition and Purpose: The Evergreen EM ECM is a motor designed to replace Original Equipment Manufacturer (OEM) constant torque Electronically Commutated Motor (ECM) indoor blower motors.

  • Targeted Replacements: It is specifically engineered to replace motors built with 24volt24\,volt speed taps, such as the X 13 and similar competitor models, offering a quick and easy solution for field replacements.

  • Presenter: The information is presented by Mohali, the training manager for Riga Beloit.

Comparison Between Evergreen Centimeters and Evergreen EM

  • Application Overlap: Both the Evergreen Centimeters and the Evergreen EM cover similar indoor blower applications.

  • Evergreen EM Specifications:     * Designed for 115volt115\,volt or 208230volt208-230\,volt models.

    • Evergreen CM Differentiation:     * Built specifically for commercial HVAC applications.     * Voltage ratings include 208230/277voltAC208-230/277\,volt\,AC or 460voltAC460\,volt\,AC.

Technical Specifications and Models

  • Motor Type: Multi-speed constant torque dual rotation motor.

  • Voltage and Horsepower Ratings:     * 208230/277volt208-230/277\,volt Model: Available in sizes ranging from 1/31/3 through 1horsepower1\,horsepower.     * 460volt460\,volt Model: Available in sizes ranging from 1/21/2 through 1horsepower1\,horsepower.

  • Airflow Characteristics: The motor matches the constant torque airflow characteristics and efficiency of the X 13 motor.

Key Features and Installation Advantages

  • Factory Preprogramming: The Evergreen Centimeters comes preprogrammed from the factory to allow for immediate convenience and use.

  • Installation Compatibility: It is built with the same tap connections, horsepower ratings, and voltage ratings as the X 13, eliminating the need for complex wiring or system reconfiguration.

  • Automatic Rotation Configuration: Rotation is automatically configured by the motor. This feature eliminates the need for manual configuration with plugs, saving a step during the installation process.

  • Availability: Because it requires no complex programming in the field, the motor is readily available at distribution counters and is considered ideal for maintaining as truck stock.

  • Contractor Preference: While other X 13 replacement motors exist, the Evergreen Centimeters is noted as the preferred choice for contractors.

Commercial Applications and Retrofit Upgrades (CM Motor)

  • Energy Savings Retrofits: The motor serves as an effective energy savings retrofit upgrade for Permanent Split Capacitor (PSC) driven systems.

  • Target Systems:     * Variable Air Volume (VAVVAV) systems.     * Air handlers.     * Package systems that do not require on/off delays.

  • Control Versatility and Building Automation: The CM motor is well-suited for Building Automation Systems (BASBAS) or add-on control systems to improve air balancing. It supports multiple inputs, including:     * 18voltDC18\,volt\,DC speed taps.     * Pulse Width Modulation (PWMPWM).     * 010voltDC0-10\,volt\,DC inputs.

Application Constraints and Exclusions

  • Prohibited Uses: The Evergreen CM should NOT be used for the following applications:     * Replacing belt drive motors.     * Replacing outdoor fan motors.     * Replacing OEM ECM variable speed indoor blower motors.

  • Variable Speed Replacement Rule: Any variable speed ECM must be replaced with a direct factory replacement sourced from the specific manufacturer of the HVAC system in which it is used.

NOTES

  • PWM is interpreted by an evergreen EM motor as an electronic torque tap

  • PWM is interpreted by an evergreen CM motor as a primary speed command