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Old 02-23-2015, 03:45 PM   #1
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Yamaha 2000 generator

I am looking at a Yamaha 2000 generator to power the ac side of my electrical . it has a continuous power of 13.8 amps and the only concern I have is air conditioning which is a 7000 btu system that needs a max of 7 amps. Has anyone used one of these to power there boat.
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Old 02-23-2015, 05:08 PM   #2
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The real issue is will that generator start it. The answer is- probably. If not you can usually add a soft start kit that will help from Dometic (expensive) or Supco (cheaper but probably not as good).

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Old 02-23-2015, 08:21 PM   #3
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I agree with David. I couldn't start my 5000 btu unit with a Honda 2000 until I installed a Supco. Now I can start and run it on a Honda 1000. It takes only about 600 watts to run it but over 3000 watts to start it without the Supco.

I think a lot of newer air conditioners are coming with soft starts installed. If I was you I'd give it a try. If the AC won't start, install a Supco.
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Old 02-24-2015, 06:47 AM   #4
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http://www2.dometic.com/enus/America...Startup-Surge/
This should work
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Old 02-24-2015, 07:35 AM   #5
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Might not need either soft start device. But no way to tell without trying it. We don't know how many startup amps the AC requires, and we don't know how good the Yamaha is at handling a surge. Might be pleasantly surprised.
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Old 02-24-2015, 08:30 AM   #6
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Just an additional thought, you may want to put the fan setting to manual first, that way it spins up first and then engage the compressor, this way both are not surging at the same time. Once running keep the temp down low so it doesn't cycle on and off as well.
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Old 02-24-2015, 11:19 AM   #7
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One thing to look out for is that the 2000 watts is for surge only. The continuous operating load design is 1600 watts. Two of these units can be tied together to create a capacity of 4,000 watts surge and 3200 watts continuous.
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Old 02-24-2015, 11:40 AM   #8
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Good article here on soft start systems...Both the Dometic and Supco...

Appropriatey tested with a 2000 watt Honda and a Marine air unit. Very interesting:

Honda eu2000i and air conditioning - Page 3 - SailNet Community
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