© 2006 GE ECM by Regal-Beloit
- 83 -
Indoor Blower Motors
v0.2
Service Basics
- The X13 motor can be operated by 115vac or 230vac. However these are two
different motor models. Unlike the Premium ECM 2.3 motor, the X13 is not a
dual voltage motor. Applying incorrect high voltage to the X13 motor may cause
the motor to not operate, or even damage the motor.
- The manufacturers’ manuals, diagrams and schematics must be consulted for
proper set-up, wiring, operation, and all troubleshooting. Remember to check all
system limits, rollouts and safeties before troubleshooting the motor.
- The X13 motor has the capability of accepting a communication signal of 9-
23vdc as well as 24vac. Currently most manufacturers are using 24vac to our
knowledge.
Safety Notes:
- Never disconnect or re-connect the high voltage plug or terminals from
the motor with the power on to prevent arcing. The ECM motor may draw
as much as 150 amps peak when powered up. Remember that the ECM
motor uses electrical energy even if the motor is not doing useful work (is at
rest). This is a good practice to follow on the low voltage connections as well.
- Do not trust the blower door switch for power disconnection. To avoid
frequent arching of the door switch contacts use the main disconnect on any
system with an ECM motor before removing or replacing the blower door.
- Always pull on the plug or terminals and not the wires. You may want to note
the orientation of the plug or terminals. Remember they are often located in
the down position on the motor, and sometimes where there is limited working
space.
- Always confirm that the system power has been disconnected with a meter.
Check line to line and each line to ground.
- It is also a good practice to make sure that the ground connection from the
(G) terminal to the main ground is good. For more information on checking
the ground see page 55 of this manual.
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