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Thread: 20 amp power chord
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3rd December 2006, 01:32 PM #1
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20 amp power chord
Hi I have bought an LG Window Wall Air Conditioner 2.2HP I got it quite cheap and asked the salesman if it had a standard 10amp power lead he said yes it had but when I got it home I found it had a 20amp 250 volt power lead but on the air con itself on a sticker this is what it says
Cooling<O
Capacity 6100 watts Voltage 240v~
Current 12.0a Frequency 50hz,<O
Refridgerant r22, 0.63kg<O
<O
With those ratings on the sticker the power lead seems overkill to me and I'd like to know if I could make an extension lead with 20 amp to 10 amp or create a 10 amp power lead Can I get away with running this on 10 amp power?<O
we have 16amp circuit breakers and have three power circuits and from what I've read you would probably be only able to run the air con on one circuit with nothing else running on that circuit.<O
It's just that we are only renting and wouldn't want to go to all the expense of putting in a 20amp circuit, I hope I've made sense. If you need more info just ask me.<O
Any help would be greatly appreciated<O
Thanks Duane<OLast edited by ozwinner; 4th December 2006 at 07:02 PM. Reason: office tags
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3rd December 2006, 02:14 PM #2
The instructions should have a recommended circuit breaker size, either 16A or 20A. This should be on its own circuit and plugged in near the A/C without an extension lead. This will need a sparky to organise. You are looking at $150-$350 for this. If it is a 20A plug you need a 20A socket. These coast about $20 each.
I'd speak to the place where you bought it. They gave you misleading adivice since getting wiring done is not ideal for a rental place. Why not get a smaller 1hp unit and plug into a regular power point? Or ask the landlord to install a split system and pay $10 more rent per week.
Cheers Pulse
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4th December 2006, 06:49 PM #3
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from the details you've given, assuming they are correct the plug top on there is dangerously small. you should be thinking of putting a 32 amp plug top on rather than a 10.
using the power forumula [p=v*i] it transposes to give p/v=i
throw your numbers in there and you get 6100/240=25.4Amps.
plug that into a 16 amp circuit and you'll still trip the breaker.
i'd be far easier to take it back to the sales guy as he has sold you a product based on misinformation he's given you, so you're fully entitled to a refund.
a 32 amp circuit will be expensive for a single run, as copper has gone up and 32 amps uses larger cable. which means more $/m
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4th December 2006, 07:19 PM #4
I think the 6100W is cooling power of the AC, not current draw from the compressor. The current draw is 12A, but the start current may be higher. Some ACs like the current mistral units in Bunnies have soft start to limit this. The manual should have a recommendation in it.
Cheers
Pulse
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4th December 2006, 08:07 PM #5
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4th December 2006, 08:11 PM #6
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still, a 12 amp current draw shouldn't be placed on a 10 amp plug top.
PenPan, you may be able to get an electrician to have a look at the exisiting circuits and create a dedicated 16 amp circuit for the a/c. if they were to put a 15 amp socket outlet on this circuit, and a 15 amp plug top on your a/c you'd be laughing. it might just be a fair bit of juggling to get the house balanced on only two circuits though.
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4th December 2006, 08:23 PM #7
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4th December 2006, 10:23 PM #8
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Recently we had two aircons installed recently, one was a 5200W unit and the other is 7200W. The company we bought the aircons from agreed in writing to wire these to dedicated circuit breakers and also arranged the installation sparkies. Next morning I let the sparkies in and then left them to it. When I came back they had gone, and had wired the big one to a new 32A circuit and the other to an existing 20A breaker. I rang the aircon company to complain, the manager was clearly upset, not at me, but at the sparkies and said things like, "this is the last straw". Next day they sent around another sparky who wired the 5200W unit to its own breaker. I later heard he had give the first lot of sparkies the flick,
It's a big problem in WA at the moment getting anyone to do this sort of job properly.
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2nd January 2007, 10:41 PM #9
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I know a 15A GPO uses the same power cable as a twin 10A, as this is the type of points I had installed in my garage. Correct about the circuit breakers. I had to have 4 breakers for the 4 15A points.
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5th January 2007, 09:02 PM #10
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