converting 220v into 110


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Old 05-28-03, 02:53 PM
tolomia
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Unhappy converting 220v into 110

I bought an AC (wall) unit 110 v but the outlet is 220v. In the present outlet (220) there are 3 wires color: red and black (live), and a green (?). Can I convert this 220 into 110 and how?
 
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Old 05-28-03, 05:44 PM
J
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No.

Can you take the AC back and buy a 240-volt one?
 
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Old 05-28-03, 08:42 PM
T
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Since you only have a black, red and green wire I would assume that you may have conduit as opposed to NM cable. It may be possible for you to run an additional white wire in the same conduit from the panel.
You could I suppose use the red wire as your neutral, the black as your hot wire and the green as your ground, but as John pointed out, that's not code.
I am curious though on what type of AC was installed previously as all 220V AC units I've seen use a white neutral wire.
 
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Old 05-28-03, 11:40 PM
tolomia
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Unhappy converting 220v into 110

John Nelson, the unit was purchased sometime last year, it has been over a year, 13,800 BTU, 115v-60Hz. I tried to plug it from a 110v outlet but it doesn't work, tripped the circuit braker. The AC is a HAIER. The 110v outlet is just below the unit but wired to the outlets in the kitchen, the 220v is located on the side.
 
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Old 05-29-03, 05:03 AM
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You could use the existing wires but you need to change the breaker in the panel to match the requirements of the A/C unit and the outlet in the wall and it's a good idea to mark the common with white tape. Also make sure the wire size is at least 12 but being that it was a 220 circuit it may be bigger.
 
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Old 05-29-03, 07:32 AM
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It's not legal to remark a red wire as white for wire sizes smaller than #6.

If you replace the breaker, the receptacle and the wire in between, then I no longer think of that as "converting" an existing circuit. It's pretty much a brand new circuit. I guess you get to keep the black and green wires.
 
 

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