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| Subject - 2 ton window airconditioner | |
| jakeselectric |
I am installing a 2 ton window airconditioner. Is the following information correct. 240 volt dedicated circuit, #12 awg THHN wire on a 20 amp 2 pole breaker |
| JimmyDee | Just off the top of my head, I'd say it is not big enough but do you have the amp rating for the AC unit? Jim |
| jakeselectric | quote: No I don't have the amp rating, it is an old unit that the customer has and I can't find the rating anywhere. I don't think it will pull more than 20 amps but I guess I could run # 10 on a 30 amp but I don't want to over rate the airconditioner either. |
| kbsparky | What is the NEMA configuration on the attachment plug? If it has a NEMA 6-20P on it, then you install a 20 Amp circuit. IF there is a NEMA 6-30P, then install a 30 Amp circuit. No brainer  |
| jakeselectric | well I would say you are right and I should have figured that out on my own. Thanks to both of you for the help. |
| kbsparky | Jake: Sometimes, the obvious stares us in the face, and we can't see the forest for all those trees in the way  FWIW, I used to install circuits for window A/C units, and about the largest size that operated on a 20 Amp circuit was 25,000 BTU. Just a hair above 2 "ton" |
| lctrc789 | 24,000 I think is 2 ton and 30,000 is 2 1/2 ton and so on at least from what I remember..... |