Table of Contents
Advertisement
A
HVAC System 16-Pin
Harness to the
EZI Connector
If the 16-Pin harness from the HVAC system control board is missing a lead at Pin 12,
use the Auxiliary Wire that shipped with the motor to provide power to the EZI.
A. Connect the HVAC system harness to the 16-Pin Input Connector on the bottom of the EZI.
B. Connect the 4-Pin Output Harness from the EZI to the 4-Pin Connector on the motor.
C. Connect the power harness from the HVAC system to the 5-Pin Connector on the motor.
D. Mandatory: The Auxiliary Wire is needed to power the EZI. Plug the crimped end of the
Auxiliary Wire into the empty Pin 12 slot on the 16-Pin harness. The schematic view of the
16-Pin harness shown above is from the back.
E. Mandatory: Connect the stripped end of the Auxiliary Wire to the R Terminal of the thermostat input
on the system control board.
2. Proceed to STEP 9: Set Up EZI Communications.
Figure 2
Mandatory:
Plug Auxiliary Wire
D
into Slot 12 of the
16-Pin Harness
(EZI)
Mandatory:
Connect Auxiliary
E
Wire to the
R Terminal on
the system board
B
EZI to the
4-Pin Connector
on the Motor
13
C
HVAC system
power harness
to the Power
Connector on
the Motor
Hide quick links:
Advertisement
Table of Contents
Need help?
Do you have a question about the RESCUE EZ16 and is the answer not in the manual?
Questions and answers
Motor won’t ramp up
The Nidec RESCUE EZ16 motor may not ramp up because:
1. It is normal for the motor to have a 10–12 second delay before beginning operation and may take up to 30 seconds to reach full speed.
2. The blower wheel may not be attached. If not attached, the motor will run continuously to a maximum speed and then stop.
3. Incorrect voltage may be applied. Only the nameplate voltage should be used.
4. Rotation sensing may need to reoccur if the motor experienced a power loss longer than 60 seconds.
5. The motor or control unit may have been replaced with incompatible parts, affecting performance.
Check these conditions to troubleshoot the issue.
This answer is automatically generated