I have a 208/220 pool pump but only a 120 line from the breaker. How can i connect it?
Question:If i continue and connect the 220 unit with a 120 power source do you only lose working power for that unit or does it over work the unit without proper electrical supply?
Answers:
what you need to do is make sure the pump is the only thing on this line...then buy a 220 volt breaker that has a higher amperage than the sfa amps on your pump motors nameplate. if the pump is 12 amps then you need a 15 amp breaker if it is over 12 amps you need a 20 amp breaker..all you need is two hot lines and a ground ..you dont need a neutral if the pump is only thing on this line...take the white wire in your electrical box from this line and hook it and the black wire up to your breaker...then you will have 220 volts to pump plus a bare ground...if this pump says it is only 208 230 volts then it will not run on 120 volts...
To make 120 into 240 or 110 into 220, run the hot legs of two 110 circuits and have a common neutral. Sometime a 220 device will run on 110 but it won't work effectively.
You will need a third wire, #10.
you gotta run 220 out to the pool from the breaker panel. There's no other way around it unfortunately. If you ave enough conductors in the cable going out, you may be able to convert it to 220.You need 2 hots, a ground and a neutral.
I would let an electrician mess with this of course.
Dude, it won't work. Period. If the pump is labelled 208/220 then you HAVE to have a 220 supply. If the label read 110/220 then you would be ok. Either have a 220 service installed or get a new pump.
look at the wiring diagram for the pump. Some motors are convertable to 110V.
If it is 220v only you will need to run a new line to the pump. It will also need to be on a GFCI breaker since it is for a pool.
Pool water readily conducts electricity, so if you're not real sure about how to run the line and install the pump, call an electrician.
The pump manual should say what capacity breaker you'll need to get (it'll be a double-pole breaker). And you'll need a 4-element cable (two hot lines, each carrying 120V from the breaker; the neutral, and the ground). I installed a jacuzzi out back and local codes require that I run both a neutral and a ground from the inside breaker box along with the hot lines going outside. Check the codes, you may need to mount, and run the lines to, an outside service disconnect box/panel (rated for outdoors use).
You'll get nowhere fast if you try to run a 220V pump with 120V supply. Because a 120V feed delivers half the energy that a 220V feed would deliver, the pump will run (spin) when there's no load, but might just sit there and hum once you connect pipes and try to pump water.
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