EZ16 ECM Install Tips

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• Determine the number of pin used on the HVAC system Connector Harness for proper setup of the
  16- Pin connections.

• If the system Connector Harness is using all 16 Pins, connect as described below.

• If the system Connector Harness is using 15 Pins (Pin 12 is missing), connect as described below.

• 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.

• 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 below.

• 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.
• Operating the motor at 240 VAC with a jumper wire installed on the Power Connector will cause significant damage to the motor.

• PWM Inputs Only

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