Humidifier Motor (Squirrel cage) Wiring

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Old 08-24-14, 11:21 AM
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Humidifier Motor (Squirrel cage) Wiring

Hello,

The motor of my desktop humidifier was burnt. Since the part was not available, it was given for re-winding. I couldn't get the proper connection details from the guy who re-wound it.

Can anyone please help me to identify the line and neutral for the motor from the attached photo ?
The humidifier had 2 speed.
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Thanks
Ran
 
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Old 08-24-14, 11:28 AM
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Welcome to the forums.

As a "guess" .... gray is neutral, red is low and black is high.

The only way to know for sure is with an ohmmeter, where the resistances of the windings are measured.
 
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Old 08-24-14, 07:14 PM
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Thanx PJmax...

Line is usually used for speed control, right?
Is there any harm if the polarity is reversed?

Thanks,
Ran
 
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Old 08-24-14, 07:19 PM
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The "line" is the combination of a hot and a neutral.

Your motor has two windings.... one for low speed and one for high speed. They share a common neutral wire. Since this A/C..... there is no polarity.
 
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Old 08-25-14, 10:26 AM
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Here hot is called line or phase

I connected as per your suggestion and it worked
Thanks a lot PJmax
 
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