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Old 07-12-2022, 04:34 PM   #1
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Upgrading 30 amp to 50 amp on 2022 2529RG...

We are very frustrated with the pricing on the new production run of 2022 2529RGs with 50 amp service (low $40K range). The price has increased $8K-10K (about $4k for Freight & Shipping and another $6K on the base price). There are still several of the earlier 2022 2529RGs with 30 amp service available for low $30K range.

I do not think the "smart switching" on the earlier 2022 models, that allows the 30amp service to run two ACs works well. Multiple people say the 13.5K bedroom AC will run, but not produce much cooling. I'm not an electrician, but it would seem that the "smart switching" system could be replaced (eliminated) with the necessary components to allow all of the existing electrical system including the main 15K AC to run off of a 30 amp portion of the 50 amp service if only 30 amps is available (or you don't need the BR AC), and wire the bedroom 13.5K AC to run off another breaker when 50 amp service is available. We have been in the southwest in the summer when our single AC is just barely able to keep us cool. This will probably be our last RV, so we would like to have things right. But not sure that justifies spending an extra $10K!

I understand that this involves more than just a new power cord.

Thank you.
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Old 07-12-2022, 05:35 PM   #2
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Yep, you should be able to do that. No magic involved, a good RV electrical technician should be able to do it for you.
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Old 07-12-2022, 08:57 PM   #3
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Thanks for the reply. I'm going to talk to an ace RV electrician that does custom coach stuff tomorrow. See what he thinks. Of course Winnebago says that it can't be done. With the price of the current production run of 50amp 2529RGs $8-10K above what we can buy an early 2022 30amp model for, I am giving it some serious thought.
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Old 07-12-2022, 10:12 PM   #4
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I don't really care what Winnebago thinks. Think of it this way, all you have to do is disconnect the 13.5K AC unit from the regular 30a service and connect to a separate 110 supply and you have it, so you know it's possible. The electrician just needs to split the current from the incoming 50a service. I'm not familiar with the wiring on your coach so can't tell you how it needs to be wired, but impossible it is not. And I'm sure it would be a lot less than 8-10K
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Old 07-12-2022, 10:47 PM   #5
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Thanks Barry, exactly how I see it. My next task is getting a wiring diagram for the 2529RG. I'm hoping it is possible to just eliminate the "load balancing" component altogether.
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Old 07-13-2022, 08:43 AM   #6
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I know it's not the question you asked and I'm not familiar with the 2529RG but many owners of older MHs have converted from 30A to 50A service, so that's a possibility as well. I have no idea what it would cost but I'd expect it would be less than $10k. There are many DIY threads on this. The most difficult part is running new, larger gauge wiring from the automatic transfer switch (which is most likely already a 50A model) to the breaker panel. The rest involves changing out the shore power cord, main breaker and some straightforward re-wiring. Here's one of several threads on this:

https://www.winnieowners.com/forums/...ml#post3842611

On the other hand, I like the additional 110V approach since, even if your MH was wired for 50A, if only 30A shore power was available, you'd still have an issue.
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Old 07-13-2022, 11:19 PM   #7
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Thanks Bob. I found an RV shop near us that works on custom coaches, they said the swap to 50 amp could be done. I will visit them with our wiring diagram in hand to get an estimate.
Take care,
John Larson
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Old 07-14-2022, 02:20 PM   #8
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Quote:
Originally Posted by TwoFrom93449 View Post
Thanks Bob. I found an RV shop near us that works on custom coaches, they said the swap to 50 amp could be done. I will visit them with our wiring diagram in hand to get an estimate.
Take care,
John Larson
That's probably the better way of doing it. Wiring and fusing upgrading will be required.

If I were doing it I'd keep the 30 service internally but change to a 50amp incoming and disconnect the AC breaker from the 30a supply. It would then be easy to add a terminal and protection for the a new AC supply coming off the 50amp service. I *think* that would be much less expensive since it doesn't require a lot of replacement. It would certainly be easier for me to do.
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Old 07-14-2022, 06:04 PM   #9
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I don't know what distribution panel you have, but if you can replace it with a WF-8930/50NP you can then upgrade the "source" lines to 50 amp, (transfer switch? generator?) with the external cabling. All the circuits would just transfer to the new panel,

you may need a new converter (for DC 12V) like a progressive dynamics in 45,60 or whatever compatible amperage you have. (keep your current wiring in mind)..
The problem is the cost of the upgraded source/cables, and fishing then through the RV. They are not $8K though.
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Old 07-14-2022, 08:12 PM   #10
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Thank you, going to the shop that works on high end coaches tomorrow. We are in a trailer, no generator. We just want to know if this is possible.
John
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