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Old 09-10-2012, 09:09 AM   #43
retired USA/USAF

2001 30' Excella
Somerset , New Jersey
Join Date: Jan 2009
Posts: 2,210
I have a Honda 2500w contractor generator. I tried running the AC on my '85 Excella. It's a 15000 btu unit ( I think). If I started on fan then went to low cool then to high cool it would start the compressor and run ( and cool ). BUT, after about 20 min I found the plug ( 30a adapter to 20a ) was way toooooo hot. If the compressor shut off I doubt that it would re-start. So my scientific analysis is that the 2500w generator is NOT able to handle the load. I now have an '01 Excella and have not tried to see. Maybe one day I will. I'm wondering if the newer units are more efficient and less stress on the generator.

Roger in NJ

" Democracy is the worst form of government. Except for all the rest"
Winston Churchill 1948

TAC - NJ 18

polarlyse is offline   Reply With Quote
Old 09-10-2012, 10:22 AM   #44
Rivet Master
2005 30' Classic
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Join Date: May 2005
Posts: 512
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I do believe a 15000 btu conditioner requires a 3500 watt unit for startup, even though the conditioner has a capacitor.

The demand for power on startup is the issue, as the conditioner needs much more power than after the compressor is started.

I would not use a 20 amp adapter. Wiring size (minimum) is critical. Wiring/connectors is not the place to cut corners ...

GetOutDoors is offline   Reply With Quote
Old 06-21-2014, 08:29 PM   #45
3 Rivet Member
2010 28' Flying Cloud
Slidell , Louisiana
Join Date: Nov 2009
Posts: 101
We use a Honda 6500 to run our AC & everything else in the trailer and also run a second line to the trailer so that 30 amps is no longer a limitation via a dpdt switch isolating the curb side outlets. Next 'round to it' - add second AC in place of rear Fantastic Fan & isolate it so don't have to rewire trailer for 50 amps. Also have a Onan 2800 microlite but it will not start our 15000 AC. We used it on our previous trailer with a 13000 AC.

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