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Old 06-29-2014, 08:18 AM   #16
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New Condenser Fan Motor Smoking???


Some Tempstar and other units have two speed condenser fan motors. They have a thermostat sensor. Somewhere around 80* or below ambient it will be on low speed. As ambient temp increases a relay switches it to high speed.

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Old 06-29-2014, 09:03 AM   #17
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New Condenser Fan Motor Smoking???


On the ones I see the two brns to capacitor, white to common, black is high, and red is low. Both black and red are only used on two speed systems with a relay. If you have a single speed, only use one, either black or red usually black. As said if both are tied together you will burn the motor up.
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Old 06-29-2014, 09:12 PM   #18
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New Condenser Fan Motor Smoking???


Liebert used ambient temperature fan speed controllers for as long as they had computer rooms.

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condenser fan motor , fan motor smoke , hvac


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