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Running both A/C units with genset
10-25-2011, 05:59 PM
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#1
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Senior Member
Join Date: Aug 2011
Posts: 106
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I have a 2001 Fleetwood Discover 37v with 30 amp service and a power management system. I do not any manuals. I am in The process of ordering them. Ok here is the question. Camping world told me that I could run both A/C units at the same time. I do not think this is true. Does anyone know from experience.
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Fleetwood Discovery 37V
2012 Silverado 1500 Z71
2012 Range Rover
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10-25-2011, 06:07 PM
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#2
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Senior Member
Workhorse Chassis Owner National RV Owners Club Ford Super Duty Owner Carolina Campers
Join Date: Aug 2011
Posts: 1,022
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I have a 5.5kw onan genny and run both ACs in my coach no problem.
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10-25-2011, 06:08 PM
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#3
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Senior Member
Join Date: Aug 2008
Posts: 989
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I would say yes you should be able to but you didn't say what gen set you have. The best way to find out is do it.
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2007 Fleetwood Revolution LE 40V
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10-25-2011, 06:16 PM
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#4
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Senior Member
Fleetwood Owners Club Oklahoma Boomers Club
Join Date: Jan 2011
Posts: 1,092
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Mine is older, 1994 Pace with a 7k genset and we run both A/C's all the time on the gen. No issues. Yours may have a power management system that only allows 1 compressor at a time but both fans at same time. Fleetwood should have all your specs, just call them with your VIN & FIN handy
Ron
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Ron & Wendy-Kansas
94 Pace Arrow 34 ft
25 yr Army retired 2006 
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10-25-2011, 06:24 PM
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#5
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Senior Member
Workhorse Chassis Owner Damon Owners Club
Join Date: Mar 2009
Posts: 8,078
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Most dual A/C 30 amp motor homes The EMS can sense when the generator is live and you can indeed run both A/Cs at one time.. As I recall you select the FRONT with the selector switch.
On the generator is both a 30 amp and a 20 amp circuit breaker... The Rear A/C hooks to the 20 amp breaker.. Directly. And is not subject to power management when the generator is running.. Which is why you select the front unit on the EMS panel.
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Home is where I park it!
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10-25-2011, 08:31 PM
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#6
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Junior Member
Join Date: Sep 2011
Location: Valdosta, Ga
Posts: 23
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I had a 2000 discovery that had a 7.5kw generator and you could everything.
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10-25-2011, 09:57 PM
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#7
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Senior Member
Join Date: Aug 2011
Posts: 106
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I have an Onan 7.5 kw. I have run both at one time but it burnt an 8 ga. wire on the transfer switch to the genset. Twice. That is why I did not think this was correct.
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Fleetwood Discovery 37V
2012 Silverado 1500 Z71
2012 Range Rover
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10-25-2011, 10:01 PM
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#8
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Senior Member
Solo Rvers Club Fleetwood Owners Club
Join Date: Oct 2010
Location: Lancaster, California
Posts: 379
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Quote:
Originally Posted by wa8yxm
Most dual A/C 30 amp motor homes The EMS can sense when the generator is live and you can indeed run both A/Cs at one time.. As I recall you select the FRONT with the selector switch.
On the generator is both a 30 amp and a 20 amp circuit breaker... The Rear A/C hooks to the 20 amp breaker.. Directly. And is not subject to power management when the generator is running.. Which is why you select the front unit on the EMS panel.
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Correct. By my use. And by my manual. Not so with shore power, only one at a time.
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Fulltime livin' & lovin' it in a '94 Bounder 32h. Chevy V-8 41k miles and like new
Retire in 3yrs. 2mo. , but who's counting 
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10-25-2011, 10:40 PM
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#9
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Senior Member
Join Date: Aug 2011
Posts: 106
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Quote:
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Originally Posted by mr300ce
Correct. By my use. And by my manual. Not so with shore power, only one at a time.
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Mr300ce.
Is there anyway you can send me a copy of the page in the manual that you are referring too?
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Fleetwood Discovery 37V
2012 Silverado 1500 Z71
2012 Range Rover
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10-26-2011, 07:08 AM
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#10
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Senior Member
Ford Super Duty Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 1,387
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As a ser. mgr. for a fleetwood dealer and also a fleetwood owner, I can tell you for sure you can run both A/C's on Gen. You can also run both A/C's on the 30 amp cord when plugged in. You have a shed system on your coach. It shed's a load to keep from pulling over 30 amps. If you have both airs on and turn on the microwave, the Intellitec system will shed (cutout) one of the A/C's.
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15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
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10-26-2011, 07:25 AM
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#11
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Community Moderator
Nor'easters Club Newmar Owners Club Workhorse Chassis Owner
Join Date: Oct 2004
Location: Salisbury,Ma. 01952
Posts: 13,613
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If you have one of these control units you should be able to run both with high output Gen.
If not the controls will shed the load.
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10-26-2011, 08:49 AM
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#12
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Senior Member
Join Date: Aug 2011
Posts: 106
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Quote:
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Originally Posted by ga traveler
As a ser. mgr. for a fleetwood dealer and also a fleetwood owner, I can tell you for sure you can run both A/C's on Gen. You can also run both A/C's on the 30 amp cord when plugged in. You have a shed system on your coach. It shed's a load to keep from pulling over 30 amps. If you have both airs on and turn on the microwave, the Intellitec system will shed (cutout) one of the A/C's.
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Ga traveler, in your professional opinion why would running both units cause the wire that is attached to genset 1 and the transfer switch to burn? It has happened 2 times now. Have you seen this before? Could it be a loose connection at the transfer switch? Everyone's reply is greatly appreciated.
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Fleetwood Discovery 37V
2012 Silverado 1500 Z71
2012 Range Rover
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10-26-2011, 08:51 AM
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#13
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Senior Member
Join Date: Aug 2011
Posts: 106
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Quote:
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Originally Posted by "007"
If you have one of these control units you should be able to run both with high output Gen.
If not the controls will shed the load. |
007, I do have one of those. Thank you for the manual page link.
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Fleetwood Discovery 37V
2012 Silverado 1500 Z71
2012 Range Rover
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10-26-2011, 05:55 PM
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#14
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Community Moderator
Nor'easters Club Newmar Owners Club Workhorse Chassis Owner
Join Date: Oct 2004
Location: Salisbury,Ma. 01952
Posts: 13,613
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If your burning insulation from wires you may have a loose connection in Transfer Switch or loose at Gen.
Loose connections will cause high resistance more current draw more heat burnt wires.
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