@MarkandCynthia posted:I am looking at getting the Renogy 3000w unit this spring. I was curious why the Renogy inverter needs to turned on to run shore power. If you have a automatic transfer switch why the inverter has to be on to get shore power. Maybe I am not understanding how most inverter setups are designed, but I thought it was not necessary. Thanks
MarkV
It depends on how its installed; if you have an automatic transfer switch it implies you are keeping your existing converter so you can still get 12v and charge the batteries. Basically the shore power line will go directly to your inverter/converter. That is tied into your 12v bus so it can charge the batteries. What you are saying is that the line would go into a transfer switch which would then either go to the inverter/converter, or to the old converter.
Before deciding you want to go that route, make sure Renogy doesn't have some way of setting it to "charge only". My Victron has a 3-way switch for On | Off | Charge Only. And even then, I keep it on 100% of the time because it's controlled via a remote switch / screen where I can set the software to enable or disable inverting. I did remove the converter that came with my trailer, the Victron is on duty; I have to think the Renogy should have similar functionality.