2024 ECM Motor Training

ECM motor speeds are infinite variable from 250 to 1300 rpm?

True

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False

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PSC motors are fixed speeds generally from 700 to 1100 rpm?

True

Correct Incorrect Correct answer

False

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ECM will deliver requested airflow regardless of static up to .8″wc.

True

Correct Incorrect Correct answer

False

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ECM Rotor is a permanent magnet?

True

Correct Incorrect Correct answer

False

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How many windings does an ECM motor have?

6

Correct Incorrect Correct answer

2

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4

Correct Incorrect Correct answer

3

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ECM motors react to change in static pressure of the duct system.

True

Correct Incorrect Correct answer

False

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An ECM motor is preprogramed and contains profiles for all modes of operation.

True

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False

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What determines the Torque of the motor?

Back EMF read by the control module

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Current of the armature read by the control module

Correct Incorrect Correct answer

The control board signal

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Feedback from the User Interface

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Operating in high static applications can make the motor 60% efficient vs 90% efficient

True

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False

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What code is generated when an ECM motor is operating out of its range?

41

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39

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44

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25

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PSC motors out perform ECM motors in high static situation?

True

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False

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What does ECM stand for?

Eco Cardio Motor

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ECAT motor

Correct Incorrect Correct answer

Electrotonically Commutated Motor

Correct Incorrect Correct answer

What phase is a ECM motor?

3ph

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1ph

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4ph

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2ph

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ECM runs a wide range of speeds.

Yes

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No

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ECM motors are the least efficient motors available?

True

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False

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What does and ECM motor adjust to deliver constant airflow?

Speed

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RPM

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Speed & RPM

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Voltage

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Current Draw

Correct Incorrect Correct answer

ECM motors are DC motors with brushes?

True

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False

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How many phase inverter is the ECM control module?

6

Correct Incorrect Correct answer

9

Correct Incorrect Correct answer

3

Correct Incorrect Correct answer

1

Correct Incorrect Correct answer

Capacitors convert AC to DC voltage

True

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False

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Rectifiers filter power?

True

Correct Incorrect Correct answer

False

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What type of magnets are the ECM rotor made of?

Rare Earth

Correct Incorrect Correct answer

Iron Ferrite

Correct Incorrect Correct answer

Refrigerator Magnets

Correct Incorrect Correct answer

The line voltage harness to the motor has a 16 pin connector?

True

Correct Incorrect Correct answer

False

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How many pins is the low voltage connector?

8

Correct Incorrect Correct answer

12

Correct Incorrect Correct answer

5

Correct Incorrect Correct answer

16

Correct Incorrect Correct answer

Slight cogging or rocking at start up is normal for ECM

True

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False

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What controls the ECM in an FV4 Fan Coil?

Thermostat

Correct Incorrect Correct answer

Motor Module

Correct Incorrect Correct answer

Easy Select board

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ECM motor simulator KGASD0301FMS works on 2.0, 2.3 & 3.0 Furnace motors only?

True

Correct Incorrect Correct answer

False

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KGASD0301FMS sends a good motor signal to the CPU?

True

Correct Incorrect Correct answer

False

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KGASD0301FMS assets in motor troubleshooting?

True

Correct Incorrect Correct answer

False

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ECM Motor simulator checks the control board CPU?

True

Correct Incorrect Correct answer

False

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4-16 pin adapter is required for the 2.5 & 3.0 ECM motor which is included with the motor simulator.

Yes

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No

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KGASD0301FMS works on all 90% ECM (PWM) inducer motors?

True

Correct Incorrect Correct answer

False

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GE Tech Mate KFASD0301VSP has limited capabilities?

True

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False

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KFASD0301VSP does not need a 16 to 4 pin adapter?

True

Correct Incorrect Correct answer

False

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TECMate Pro is a go no go tester?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

TECMate Pro cannot be powered with a 9 volt battery?

Yes

Correct Incorrect Correct answer

No

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How many ways are there to test ECM motors?

4

Correct Incorrect Correct answer

6

Correct Incorrect Correct answer

3

Correct Incorrect Correct answer

2

Correct Incorrect Correct answer

You cannot use an LED to see if the signal is sent or not sent to the motor?

True

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False

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Where do you hook the LED on the board to test for 12VDC?

PL3-2 Green & Pl3-1 Red

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PL3-3 Yellow & PL3-3 Blue

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Hook the LED to PL3-2 Green & PL3-3 Yellow for the Motor signal 5 vdc Input?

True

Correct Incorrect Correct answer

False

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Hook LED to PL3-2 Green & PL3-4 Blue to test the motor signal output 5VDC?

True

Correct Incorrect Correct answer

False

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Needle leads are recommended to read molex plugs?

True

Correct Incorrect Correct answer

False

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ECM motors should always be tested unloaded?

True

Correct Incorrect Correct answer

False

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PSC Motors use relays and capacitors as ECM does not?

True

Correct Incorrect Correct answer

False

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High static applications will cause EC Motors to run slow and quite?

True

Correct Incorrect Correct answer

False

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Low static applications will run slow and quite?

True

Correct Incorrect Correct answer

False

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High static applications will make the EC motor highly inefficient?

True

Correct Incorrect Correct answer

False

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Testing ECM should always be done loaded?

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

ECM Motors must have high and low voltage to operate correctly?

True

Correct Incorrect Correct answer

False

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