Given constraints, how can I make a 120V window air conditioner work on a 240V outlet?
I'm breaking down and getting a window air conditioner for my apartment this year. It's ~500 sq. ft., so I'm thinking ~10,000BTU should be good. All fine and dandy; I can get a Frigidaire at the local Lowes for $200 and some change.
The problem comes with power. The only 120V outlet by the window is not grounded, and is on the same circuit as the fridge and microwave. Bad situation! But I also have a 240V outlet for the baseboard heater (NEMA 6-15R or 6-30R
plug). Perfect... now how do I make this work?
I looked at a couple 240V air conditioners and they're all either (a) too powerful or (b) too expensive. I even had a co-worker who's also a landlord help me search, and we came up with bupkis. Plus, a 120V unit would be more flexible for future living situations. So getting a 240V unit is out of the question, unless I can find one relatively cheap.
Changing the outlet wiring is also not feasible. I'm moving in 2 months, and frankly my landlord is very slow getting around to requests. I just want to be comfortable for 2 months without a ton of hassle.
So, I've been looking at step down transformers. A 3,000 watt
one should easily do the trick. The air conditioner is around a 1,000 IIRC, so this gives it some wiggle room for when the fan or compressor motors start. But this introduces a problem with plug types! Every one I found seems to assume I'm plugging into European outlets, or it doesn't have an option for the 6-30R american outlet.
Any advice? Do I really have to create my own custom patch cable from european to american?