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Old 06-06-2012, 01:43 PM   #1
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Finding out the horsepower


have a goodmanck36-1 airconditioner . need to replace the screaming fan motor out side and have to know the horse power on the part number 7090-25-0439 I got the rpm number 1075 the hz 60ph1 the v230/208 dont know hwere the horse power number is ...
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Old 06-06-2012, 01:51 PM   #2
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Finding out the horsepower


1/6 hp?

See pg. 2 of
http://www.myplanet.net/acdinc/ckspecs.pdf

Whatever motor you get has to be rated to run in the very hot air that comes out of the compressor.

Last edited by Yoyizit; 06-06-2012 at 01:55 PM.
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Old 06-06-2012, 02:04 PM   #3
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Finding out the horsepower


You would be best served trying to get the exact same motor. Don't forget that not all motors mount the same. You can't just get any motor with the same voltage and HP.
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Old 06-06-2012, 02:16 PM   #4
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Finding out the horsepower


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Originally Posted by miss mary View Post
have a goodmanck36-1 airconditioner . need to replace the screaming fan motor out side and have to know the horse power on the part number 7090-25-0439 I got the rpm number 1075 the hz 60ph1 the v230/208 dont know hwere the horse power number is ...
Can you post a picture of the nameplate on the motor?
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Old 06-06-2012, 04:10 PM   #5
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Finding out the horsepower


You also need the same direction of rotation, shaft diameter, shaft length, etc., etc.. Penetrating oil may temporarily stop the screaming.

A universal replacement motor may cost as little as 1/8th that of an exact replacement, but electrical parts are not returnable and for this money savings you may get considerable uncertainty as to whether the universal motor may work or even how to hook it up.

The last time I did this Grainger did not have a motor that was even close, so the decision to go with an exact replacement was made for me.

If you measure the winding resistances of both the old and the new motor, before replacing, it will give you some measure of assurance.

Last edited by Yoyizit; 06-06-2012 at 04:23 PM.
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Old 06-06-2012, 04:39 PM   #6
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Finding out the horsepower


Moved to HVAC forum.
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