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Old 06-18-2006, 10:23 PM   #1
The Silver Biscuit
2004 28' International CCD
Austin , Texas
Join Date: Nov 2005
Posts: 65
UNits with 2 AC's

Our unit has 2 AC units, but PO told us that only one is supposed to work at a time... anyone know why, and whether this is an absolute rule?

Wish they had just put a fantastic fan into hole # 2 . . .

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Old 06-19-2006, 07:16 AM   #2
Rivet Master
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lewster's Avatar
Vintage Kin Owner
Naples, FL , Hood River, OR
Join Date: Dec 2005
Posts: 7,306
Your 2 A/C units operating at the same time would probably max out your 30-amp power feed. Most RV's that I work on that have 2 roof units also have a 50 amp power feed. IIRC, one 13,500 BTU roof air will draw almost 15 amps between the compressor and the fan. Interestingly, the new 15,000 BTU units draw less, only 13.5 amps.

Still, that leaves you with nothing to operate anything else in the trailer. An option might be to re-wire your A/S to 50 amp service so you can run both, but iy is fairly complicated and expensive. If you use the search option, I believe that there were some posts a while back from a member who did that, but I think it was in a MoHo.
Lew Farber...ABYC Certified Master Marine Electrician...RVIA Certified Master Tech ...AM Solar Authorized Installation Center...AIRSTREAM Solar & Electrical Specialist...Micro Air 'Easy Start' Sales and Installations
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