Front of controller
Disconnect one side of the battery (or activate your battery kill switch) and disconnect your trailer from shore power. Ignore this at your peril! Your unit will differ from mine but you need to run 2 power cables from the your 12V battery or batteries to the controller. The cables in my trailer were #8 AWG running from the battery bank to the 12 volt side of my power panel. I disconnected them from the panel and spliced in additional cable to reach the controller. Next. I ran a pair of #8 AWG cables from the power panel to the LOAD connections on the controller.
Wires and control panel connections go here
In my system, the negative 12V battery cable was attached to both the system ground and the negative side of the panel – I just ran the new battery negative cable from the system ground bus.to the controller negative battery terminal. If the terminology here or electrical systems in general puzzle you – STOP and seek advice or someone competent to finish the install and make the connections! You can cause a fire or damage components if you do not correctly connect the six wires to the controller and the proper destination and (if used) the seventh wire to the external display and control panel.
After you have connected all the cables and the panel meter, your controller will look something like the picture on the left. The two black cables from the solar panels to the left, The red/black battery pair in the middle and the red/black load pair on the right. The ribbon cable for the remote panel is on the right.
Connect the battery so the controller knows 12 or 24 volt. Setup the converter for battery type, amp hours and so-on. Enjoy!
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