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Old 07-29-2018, 03:52 PM   #7
halfprice
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Brand: Still Looking
Model: Renegade Valencia 38RB
State: California
Posts: 3,496
THOR #3156
Quote:
Originally Posted by TurnerFam View Post
the 'myth' is continually perpetrated in the RVing world for this very reason... folks want to suddenly make more out of it than reality - there is no 'need' to 'run down into the basement to pull fuses' or such nonsense, but the reality is that most newer RVrs don't yet realize the potential of their electrical needs, and how the breaker box addresses those.

The suggestion to turn OFF all breakers except the AC units, at least when you aren't yet knowledgeable about your breaker box, is to eliminate any other 'loads' that may be 'ON', yet not 'seen' by the owner.... such as the Electric water heater element, and the Battery Charger(especially if you have a integrated Inverter/Charger), as either of these could take up enough 'amp' space that trying to run both AC units simultaneously could trip the shore power breaker, or the coach's main breaker.
When this happens, most immediately think that it's somehow 'impossible' to run both AC's on 30amp service, but what they are not seeing are these 'silent' amp users who are the real culprits.

Once you understand your breaker box, and how your coach is segmented within it, and which outlets and devices are powered thru it, you get a much better idea of 'what to do' in situations where only 30amp service is available, but it's 'hot outside!' and you want to run both AC units at the same time.

Just the other day, from a personal experience, we parked at a beautiful mountainside campground, which only had 30amp service, yet it was 95 degrees and 95 percent humidity when we arrived.
I plugged in, turned off any 'silent' devices, such as the Charger and the Water Heater, and turned on BOTH air conditioners, one at a time... ALONG with the residential fridge, our computers, several bedside fans, and the TV and receiver.
Both AC units continued to work fine, and continuously, for the next 6 hours as the outside temps began to finally settle down for overnight.

The owner even made a comment that he was sorry that we had to endure the 30amp service, the only one in his park, while it was so hot. He was SHOCKED when I told him I had no problem, and was running both AC units... what!!?
He had bought into the myth, even as a campground owner, AND a long time motorhome owner himself. He had always been 'told' that it wasn't possible, as though you would somehow 'break' your air conditioner if you tried. Crazy.
Have you checked the voltage while running both??

Jerry
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Jerry, Maria, and Sasha 6lb Yorkie
2022 Renegade Valencia 38RB "Five Deuces"
2016 Jeep Wrangler Unlimited Sport
FMCA # F464385
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