proper receptacle for A/C


Old 06-27-10, 02:32 PM
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proper receptacle for A/C

I want to replace an old air conditioner, and the receptacle near it is a 5-20R. All the A/Cs I've looked at with 125volts have 5-15P plugs. Do I have to change the 5-20R to a 5-15P or will the 5-15P work in the 5-20R receptacle?
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Old 06-27-10, 03:00 PM
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Welcome to the forums. As is propper etiquette in most forums don't hijack threads. Please start you own. As long as it is a 120v receptacle and the AC is 120 volts it shouldn't be a problem.
Old 06-27-10, 09:30 PM
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could I just replace the 5-15R with a 5-20R
Yes, you can because as you stated, this is a 20 amp circuit.
Old 06-27-10, 10:28 PM
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If you going to change from 15 amp to 20 amp receptale you have to verify the conductor rating to make sure they are 4.0mm˛ { #12 AWG } if you are going to run full 20 amp circuit.

Old 06-28-10, 02:23 AM
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There is no need to make any changes. A 15 amp plug will fit in a 20 amp receptacle.
Old 06-28-10, 09:46 AM
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This is a 5-20R. The "T" shaped slot is designed to accept either 15A or 20A plugs.


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