Wiring 220 For Pump Motor

[matcin2531]

I am thinking of running 220 for my pump motor and changing the wiring in the motor. I have read that it will use less amps and lower my electric bill. But someone else told me that it will cause my motor to spin twice as fast. Is that correct or not? It is a 115 volt motor single speed with a three prong wire attached but when I pulled the plate it has more connecting screws for changing over to 220.

[waterbear]

I am thinking of running 220 for my pump motor and changing the wiring in the motor. I have read that it will use less amps and lower my electric bill. But someone else told me that it will cause my motor to spin twice as fast. Is that correct or not?

Not!

It is a 115 volt motor single speed with a three prong wire attached but when I pulled the plate it has more connecting screws for changing over to 220.

Main advantage to 220 is that it draws less current so smaller wires are needed (or to look at it another way, if the same size wire is used there is less loss in the wire as heat.) The pump motor will run exactly the same once it is rewired.

Also, you won't be saving any electricity. The wattage stays the same! (Electricity is metered in Watt Hours or how many watts used per hour)

WATTS = VOLTS X AMPS (Ohm's law)

While you are halving the amps drawn you are doubling the voltage so the watts stay the same!

If you want to save on your electric bills you need to replace your motor with an energy efficient one (only a small savings and not really worth it IMHO) or a two speed motor or pump (BIG savings when run on low speed for a longer filtration time) or replace the pump with a variable speed one ( biggest savings but biggest initial price).

[matcin2531]

Thanks for the info waterbear,

I think I will just run 220 with 2-20 amp breakers out, then convert to 110 somewhere close to to filter for these things. And keep the pump motor 110.

[Pool Clown]

If you decide to run 120V don't forget you will need to run another wire for the neutral(white) So it may just be easier to run your motor on 220V since you are going to bring 220 to the equipment area anyway.