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Open Roads Forum  >  Class A Motorhomes

 > 5500 watt onan questions is it ok to run both ac

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craigspeer2001

south carolina

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Posted: 05/03/12 07:33pm Link  |  Print  |  Notify Moderator

I have a 33 ft winebago brave I am curiuous to why both acs will run off generator is this ok or do I have something wrong with my selector switch.

rk911

Wheaton IL

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Posted: 05/03/12 07:34pm Link  |  Print  |  Notify Moderator

39-amp coach or 50-amp coach? power management system or not?


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rich, n9dko
www.bananaboatbytes.com
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hottubkid

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Posted: 05/03/12 07:37pm Link  |  Print  |  Notify Moderator

Should work


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What Next

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Posted: 05/03/12 07:40pm Link  |  Print  |  Notify Moderator

5500 states in book it will handle 2 regular air conditioners fine. Mine does and with power management system it runs everything fine.


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stew&Jan

Lanesville, IN

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Posted: 05/03/12 07:43pm Link  |  Print  |  Notify Moderator

I've been running both on our 5500 Onan for years and have never had any problem

edatlanta

Panama City Beach, FL

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Posted: 05/04/12 03:52am Link  |  Print  |  Notify Moderator

My 5500 runs both a/c's fine. One is a 15K and the other is a 13.5K. No problems at all.


Ed

2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, TTT/Schefenacker Towing Mirrors, Prodigy Controller, B&W Companion Hitch, Progressive Industries EMS-PT50C, TST Systems 507 TPMS
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jerseyjim

New Jersey

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Posted: 05/04/12 04:24am Link  |  Print  |  Notify Moderator

My 5500 Generac runs both of mine, no problems. Your Onan should, too.

PackerBacker

Montreal (Qc) Adirondacks (NY) Myrtle Beach (SC)

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Posted: 05/04/12 05:08am Link  |  Print  |  Notify Moderator

My Onan 5500 runs both all the time with lots of power to spare.


Eric
2009 Holiday Rambler Admiral 33SFS (34' 3")
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SolidAxleDurango

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Posted: 05/04/12 05:11am Link  |  Print  |  Notify Moderator

A 5500 will run both A/C's - it's designed to....

However, if you have trouble, check your 110v breaker box. On one RV I had, both A/C's were on the same leg of the panel... Can't run both A/C's like that.

I moved the bedroom A/C to the other leg and all was happy then.


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PeppyPilot

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Posted: 05/04/12 05:30am Link  |  Print  |  Notify Moderator

Ours works just fine for both compressors (we have basement air), equivalent to running two A/Cs. We can also run microwave, electric hot water, electric cooking appliance etc. at the same time.

The math: a 5500 watt generator yields about 46 amps (5500/120 volts). Your two A/C's should pull ~22 to 25 amps when both operating, only about half a load.

We can monitor our amps drawn and we sometimes pull 40+ with multiple draws simultaneously. EMS will shed a load if it gets too much.


CJ and Pepe
2003 Itasca Suncruiser 33V
Workhorse W-20 chassis
2004 Jeep Liberty Limited w/Blue Ox


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