What does the presence of a 4-pin communications connector on an ECM signify?

a. It is a newer version motor.
b. It can only be used in furnaces.
c. It is a 240V-only motor.
d. The motor needs 24V input signals.


a

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Refer to the girder brace in Drawing Number W11784S R1.

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What will be an ideal response?

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What will be an ideal response?

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