Nidec RESCUE EZ16 Installation And Operation Manual
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Nidec RESCUE EZ16 Installation And Operation Manual

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RESCUE
M018204450000
Rev: B
®
Installation and
Operation Manual
For technical assistance or questions
related to your RESCUE
call the Technical Hotline:
1-888-540-5540
Read the entire manual prior to installation of the
®
RESCUE
Follow all instructions contained herein.
™
EZ16
Motor
™
®
EZ16
Motor
™
EZ16
Motor.

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Summary of Contents for Nidec RESCUE EZ16

  • Page 1 ® ™ RESCUE EZ16 Motor Installation and Operation Manual For technical assistance or questions ™ ® related to your RESCUE EZ16 Motor call the Technical Hotline: 1-888-540-5540 Read the entire manual prior to installation of the ® ™ RESCUE EZ16 Motor.

  • Page 2: Table Of Contents

    Table of Contents Important Safety Information ..................1 Product Overview ......................4 Features ......................... 4 Specifications ......................4 Motor Dimensions ....................5 General Information....................6 Materials Enclosed ..................6 Initial Inspection ..................... 6 Installing the Motor ....................7 Handling and Care ..................7 STEP 1: Turn Off Electrical Power ..............

  • Page 3: Important Safety Information

    Important Safety Information ® ™ Only trained and qualified professionals familiar with RESCUE EZ16 motors should service the motor and control.  Before connecting or disconnecting cables or other electrical connections, verify that the electrical power to the system is removed. Failure to comply may cause serious damage to the motor or HVAC system or injury to personnel.
  • Page 4  All aspects of the installation must conform to the applicable requirements of the NEC, including Article 430 (Motor Circuits and Controllers), as well as all local codes.  Always disconnect electrical power at the fuse box or circuit breaker panel before handling electrical connections or performing maintenance on this unit.
  • Page 5 ® ™  The RESCUE EZ16 motor is properly packaged for shipment and storage and should be kept in a clean and dry indoor area.  The motor should be stored indoors in a clean, dry location. Proper selection, installation, and maintenance will assure longer life and more dependable service.

  • Page 6: Product Overview

    (ECM) in modern HAC and ventilation systems. With a wide range of control options, voltages, and mechanical configurations, the motor offers the high efficiency and airflow control needed in a broad array of air-moving applications, all backed by Nidec's extensive ECM experience and close application support. Features ...

  • Page 7: Motor Dimensions

    Motor Dimensions All dimensions are for reference only. Dim. A Dim. B Dim. C 3.41 10.48 2.06 3.66 10.73 2.06 4.04 11.10 2.06 4.41 11.98 2.56 Remote mounting of the EZ Interface is recommended using either double-sided tape or screws in combination with the integrated mounting tabs on the unit.

  • Page 8: General Information

    General Information Materials Enclosed  ® RESCUE EZ16 Motor  EZ Interface (EZI)  ® RESCUE EZ16 Motor Installation and Operation Manual  4-Pin Output Harness  Auxiliary Wire for connecting 24V power Initial Inspection ® Check the RESCUE EZ16 motor to verify the following: ...

  • Page 9: Installing The Motor

    Installing the Motor  Always disconnect electrical power at the fuse box or circuit breaker panel before handling electrical connections or performing maintenance on this unit. Allow the motor to come to a complete stop and wait four (4) minutes. This allows the capacitors to discharge any residual voltage for safety. ...

  • Page 10: Step 2: Locate And Verify The Connector

    STEP 2: Locate and Verify the Connector 1. Disconnect the 16-Pin HVAC wiring harness from the motor. 2. Connect the 16-Pin HVAC wiring harness to the bottom of the EZI to ensure proper fit. 3. Disconnect the 16-Pin HVAC wiring harness from the EZI and set aside. STEP 3: Remove the Blower Housing from the HVAC Equipment 1.

  • Page 11: Step 4: Remove The Original Ecm Motor

    STEP 4: Remove the Original ECM Motor 1. Loosen the set screw on the motor shaft. 2. Remove the screw that secures the belly-band mounting bracket to the original motor and set them aside. 3. Remove the original motor from the belly-band. ®...

  • Page 12: Step 5: Install The Replacement Motor

    STEP 5: Install the Replacement Motor ® 1. Insert the RESCUE EZ16 motor into the mounting bracket. The belly-band can be positioned anywhere on the motor shell except the end bell (i.e., the control). The preferred position is at the midpoint between the motor vents.

  • Page 13: Step 6: Install The Replacement Motor In The Air Handling Unit

    STEP 6: Install the Replacement Motor in the Air Handling Unit 1. Insert the motor shaft into the blower wheel, securing the motor to the blower housing. 2. Align the blower wheel so it is properly centered in the blower housing, aligning the wheel’s set screw to the flat of the motor shaft.
  • Page 14 Figure 1 HVAC system power harness to the Power HVAC System 16-Pin Connector on Harness to the the Motor EZI Connector (EZI) EZI to the 4-Pin Connector on the Motor A. Connect the HVAC system harness to the 16-Pin Input Connector on the bottom of the EZI. B.
  • Page 15 Figure 2 HVAC system power harness to the Power Connector on the Motor HVAC System 16-Pin Harness to the EZI Connector Mandatory: Connect Auxiliary Wire to the R Terminal on the system board Mandatory: Plug Auxiliary Wire into Slot 12 of the 16-Pin Harness (EZI) EZI to the...

  • Page 16: Step 9: Set Up Ezi Communications

    STEP 9: Set Up EZI Communications Ensure that the dials and switches are set to the following baseline settings for initial setup. Make sure the HP is set to the proper nameplate rating. Quick Setup Guide 24VAC (defaults) Setup EZI Box Auto-Rotation Rotation Sensing...
  • Page 17 It is difficult to determine if the motor is operating on 24VAC or PWM. Use 24VAC for the initial setup. Switch to the PWM setting, if the motor does not start in 24VAC application. For PWM setup, refer to the section called For PWM Inputs Only on page 17. 1.

  • Page 18: Step 10: Connect The Hvac System Power Harness To The Motor

    STEP 10: Connect the HVAC System Power Harness to the Motor If the system is wired for 120 Vac, confirm that a jumper wire is installed between positions 1 and 2. on the Power Connector. Without a jumper wire installed the motor will not start. ...

  • Page 19: For Pwm Inputs Only

    For PWM Inputs Only 1. Flip the PWM/24VAC switch on the side of the EZI. Note: (1) The PWM signal is determined by the HVAC system. (2) HP Setting: The HP setting on the EZI is not functional in PWM applications. For PWM applications, it is important that the HP on the motor matches the HP on the OEM motor.

  • Page 20: Final Checks

    Final Checks  Check the mounting and fastening of both the motor and the control. Make sure the motor and control are securely attached together and mounted tightly in HVAC system.  Check the wiring harness. Inspecting for shorts and detached wiring. Ensure that the wiring harness is securely connected to the control connector.

  • Page 21: Troubleshooting

    Troubleshooting This section provides field technicians with recommendations for accurately diagnosing and troubleshooting ® certain problems experienced by the RESCUE EZ16 motor. It does not override or replace instructions suggested by the manufacturer of the HVACR system. To prevent misdiagnosis and unneeded repairs, try these steps first.
  • Page 22 Note: LED activity represents communication taking place No LED Connections between the motor and the Interface. There is no correlation activity to the Motor between LED activity and CFM demand. For technical assistance call the Rescue EZ16 Motor Hotline: 1-888-540-5540...

  • Page 23: Warranty Information

    Warranty Information LIMITED WARRANTY Nidec Motor Corporation (NMC) extends the following LIMITED WARRANTY to the purchaser and to its customers (collectively referred to as the “Purchaser”) of the enclosed motor and components: the motor and components are free from defects in materials and workmanship under normal use, service and maintenance FOR A PERIOD OF 24 MONTHS FROM THE DATE OF ORIGINAL PURCHASE FROM NMC OR THE NMC DEALER/RETAILER, NOT TO EXCEED 30 MONTHS FROM THE DATE OF MANUFACTURE BY NMC.
  • Page 24 †All marks shown in this document are properties of their respective owners. For more information © 2018 Nidec Motor Corporation. All rights reserved. U.S. Visit us at www.nidec-motor.com ® ® Motors and RESCUE are registered trademarks of Nidec Motor Corporation.

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