“Since I'm disconnecting the shore line from the 30 amp breaker in the panel box that romex #10 wire has to run to the inverter. Since its not long enough I will have to add a junction box and extend the wire to the input of the inverter.”
Yes, to the inverters AC input - the inverter is of a shore power ‘pass-thru’ design (with ATS) that senses the loss of shore power and engages upon a loss of shore power...
“The output of the inverter will run to the 30 amp breaker. Is that correct?”
Yes...
“So if I understand this right the existing converter is use to convert a/c to d/c when Im plug into shore power. If its not being used the d/c power will be supplied through the wire I will leave connected to the battery.”
Almost Correct...Since you are not installing a separate sub panel, the inverter will potentially power up every circuit in your main panel, including the DC converter...This will cause a ‘round-robin’ effect whereby, the inverter will be drawing from the battery while simultaneously attempting to charge the battery via the converter...And without a sub-panel, if the refer was operating on shore power, the inverter will likely drain the battery in short order while attempting to supply the refer...This is why a sub-panel is best, because upon a loss of shore power the converter and typically the refer (assuming LPG/elect), and often the air conditioner, will be divorced from the inverter’s ATS output...
“If Im correct with all that then my last question would be since I disconnected the existing converter then how will the batteries recharge?”
You are not disconnecting or altering the existing converter in any way - what you are doing on the AC side is simply splicing the Aims inverter into the shore power supply wire (i.e. shore power in, inverter out to panel) while on the DC side connecting it to your existing battery terminals...
Based on your questions and your level of unfamiliarity, I agree with cavie and suggest you ‘get it right the first time’ and hire an electrician - in fact I just installed this exact same inverter for a pal and along with a sub-panel, we added a secondary stand alone ATS switch in the circuitry to optimize the
entire cascade operation...
Battery cabling size to inverter is also very important..
