How do you install 240v 20 amp outlet for wall air conditioner?

Answer 1

for USA, Canada and countries running a 60 Hz power supply service.The receptacle you are trying to use is the wrong one in this application. There are 2 different types of receptacles for 240 volts: "2 hot,1 ground" and "2 hot, 1 neutral, 1 ground". Please get a professional to help you with this.

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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

Answer 2

* You should probably have a qualified electrician do this. * Be sure to be extremely careful if you chose to undertake this. * As a homeowner, you can do this yourself and take out the necessary permits. To do this, you will need to install a double breaker (one with the bar across the two switched. This will be a wider than normal breaker and will go across the two poles in the panel box). From the box, you will need to run 12-3 (or possibly 10-3 depending on the amperage) to the 220v outlet. The 3 wires in this set will be a black, a white, and a red. If using BX armour shielded, the metal jacket of the cable provides the ground. If using romex, there will be an additional wire, this will not be insulated and will be connected to the grounding bar in the panel box. The grounding bar will usually be opposite the neutral grounding bar (the bar where the white wires are hooked). While they are often times connected to eachother, it is necessary to keep the wires separate for code purposes. The black and red wires from the newly installed cable will be connected to the newly installed breaker. Be sure the breaker is OFF when installing the cables, as per the panel box will most likely be live. Also be sure that no wires comes into contact with any of the live terminals in the panel box. When working in a live panel box, work with one wire at a time and be patient. Now that the panel box has been taken care of, you may now run the cable to the outlet and wire it up accordingly. When running the cable, try to avoid sharp bends and tack the wire using approved staples. Finally, make sure to properly hook-up the outlet. I cannot stress enough to consult the latest edition of the National Electric Code. Also, take your time and be patient. There is a lot of power in that panel box and requires your full attention.

Answer 3

first ,you must have a dedicated line. A 240 volt outlet requires a double pole breaker. It's like having two breakers on one unit, each throw is connected to the other so if one phase goes ,the other one will. one breaker in the single unit goes two one 120v phase, and the other breaker goes to the other 120v phase equaling 240 volts. a 240 volt outlet does not require a neutral to work,however the neutral wire still goes to neutral, but really acts as a ground. The red wire (from one Phase) on one breaker goes to one side of the outlet, and the black wire (from other phase) on the other breaker goes to the other side of the outlet. And the white wire goes to the round part of outlet, and in the panel box goes to neutral. the bare copper copper connects to the metal box which holds the outlet, and to the ground terminal strip in the panel box. hence, the answer to the question is YES. And this is how, and by code, the way to hook up the wires. NOTE: make sure you get a three wire romex, or bx for this.