One dual run capacitor vs two single capacitors

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Old 07-20-19, 08:53 PM
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One dual run capacitor vs two single capacitors

Can I replace 2 capacitors (80 and 5 uF) with a dual run (80 + 5 uF)? And vice versa?
Thank you.

A related question. Existing condenser fan motor is 1/6 hp 825 rpm. Can I replace it with 1075 rpm same hp?
 
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Old 07-20-19, 09:14 PM
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1. Generally yes.

2. Generally no, because the fan turning at the higher speed requires more horsepower.
 
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Old 07-20-19, 09:43 PM
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Changing from two caps to a dual run cap involves a bit of rewiring.
In my opinion..... two caps is superior to a dual cap system.

Is that an ultra high efficiency unit ?
Upsizing the speed like that will increase the motor size to approx 1/2hp.
Fan blades are rated for the motor they come with. You'd need to make sure that the blades could even take an increase in speed. Overall.... not a good idea.
 
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Old 07-21-19, 06:21 AM
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Thank you for the explanation.
 
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