Itasca. Shore power.

23hotrodr wrote:
I've never seen this EMS (energy management system) on a 30 amp coach. It is designed for a 50 amp service and automatically detects whether plugged into a 50 or 30 amp service. It cannot automatically determine the difference between whether you are plugged into a 30 or 20 amp service and you would have to manually select 20 amp if connected to a 20 amp service. It is designed to turn off certain equipment and stagger start the air conditioner compressors when on 30 or 20 amp service. Can't imagine why someone would replace a 50 amp shore cord with a 30 amp cord, except for easier handling of the 30 amp cord.

Look at your 120 volt ac breaker panel and see if the main breaker is a 30 amp single handle breaker or a 50 amp 2 handle breaker. I'm guessing it will be a 50 amp 2 pole breaker. Also, If the generator is 5500 watts, the coach is supposed to have a 50 amp cord.

I hope this helps clear things up for you. Also, you can find the wiring diagrams for your coach at the Winnebago website.

Before you make such a statement, you need to list your expertise. Intellitec makes both a 30 AMP EMS and a 50 AMP EMS. BUT, I have never seen a 30 amp RV with a 50 amp EMS system(WHY? Not needed). (I am currently a 37 year RV Tech and still am). Now, if you only have a 30 amp plug, you will NEVER be able to see or select 50 amp on the EMS system. 50 amp systems, they "see" the out of phase 120 legs and when they see that they automatically go to 50 amp and once it knows you are on 50 amp, you CANNOT select 30 or 20 on the panel. On 30 amp EMS systems, you can select less than 30 amp IF you know you are on marginal or less than 30 amp service. On most Basement airs that are on 30 amp service, either the EMS will shed the 2nd compressor if you go over the 30 amp limit, or some actually had a manual switch in a storage compartment, that you selected 50 or 30 amp service IF your RV was a 50 amp RV and they did not use a EMS system. Doug