OK.
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260 volt AC window unit ?
- Thread starter Stevenfyeager
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FionaZuppa
Senior Member
- Location
- AZ
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- Part Time Electrician (semi retired, old) - EE retired.
why's that?
To get 260V if that's what the kit needs.
FionaZuppa
Senior Member
- Location
- AZ
- Occupation
- Part Time Electrician (semi retired, old) - EE retired.
it likely does not need 260v, and can probably run on 60Hz, so my guess at this time, a 240v BC with proper ocpd is all that it needs.
but who knows, cant really know for sure until the right documentation is supplied.
this item is a UK item, rated 230v50Hz, i just not 100% what "DC Inverter" means.
[h=1]Prem-I-Air 12000 BTU DC Inverter Window Air Conditioner with Remote Control & Timer[/h]
Prem-I-Air 12000 BTU DC Inverter Window Air Conditioner with Remote Controller & Timer
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Got it at last. We don't know.
We don't rate stuff in BTU here.
- Location
- Placerville, CA, USA
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- Retired PV System Designer
It means that the supply power is rectified to DC to drive a DC to AC converter (essentially a dedicated VFD) that allows control of both output voltage and frequency to the compressor motor.
This allows soft starting (low surge draw) and running the compressor efficiently at partial output instead of cycling the compressor on and off frequently to regulate the amount of cooling provided.
The technology originated, I believe, in mini-splits and has moved into some high end window units too.
You can also find inverter microwaves that control the input to the step-up DC supply to get partial power from the magnetron instead of cycling.
drcampbell
Senior Member
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- The Motor City, Michigan USA
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- Registered Professional Engineer
The British no longer use British Thermal Units. That's ironic.
Trivia question: What do the United States, Liberia and Myanmar have in common?
The last three holdouts -- out of 195 countries on Earth -- still using the British System of Weights & Measures.
We are getting a bit off topic here. But........
For engineering I have used SI for decades. Volts , amps, ohms are all SI units.
But in UK we still use Imperial units for some things. A pint of beer is a pint of beer.
No. As a consequence of NAFTA trade agreement, manufacturers can approach UL for certification of their product for use in US and get a marking on the product for applicability in US. So the OP may check the product with AHJ for concurrence.
The OP has been conspicuous by his absence.
hbiss
EC, New York NEC: 2017
- Location
- Little Falls, New York NEC: 2017
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- EC
My only comment to all this is don't believe anything the customer tells you until you verify it by seeing it for yourself.
-Hal
-Hal
Well said that man.
kwired
Electron manager
- Location
- NE Nebraska
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- EC
I have more then once told a client that the inspector won't approve something, because I know they won't, whether it be past similar experience or simply not listed when required to be listed or not going to be used in accordance to listing instructions. I may tell them they can try to ask if they want, but I already know the answer.
The Korean manufacturer Samsung Air conditioners has put up a stall in LasVegas trade exhibition for selling their airrcons in US. They should have got certification from UL for that purpose...........
Did they not?
Mgraw
Senior Member
- Location
- Opelousas, Louisiana
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- Electrician
This technology is available in residential and commercial AC systems. The largest I have done so far is 25 ton.
What does that equate to in kW or kWh?
That depends on how efficient the aircon is. For rough estimate, 1.6kW=1ton.
Mgraw
Senior Member
- Location
- Opelousas, Louisiana
- Occupation
- Electrician
If I remember correctly the input is about 1kW in cool, slightly more in heat per ton.
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