Let me start by saying IMO you don't want to do this. That said what you have to do is remove the plus and minus wire from the converter that goes to the load you want the controller to shed. This could be power to the front shell, which is fused on our '11 2720 SL for 20 amps.
The pro
...if the battery level drops to low, the controller cuts power to the front shell. You would still have lights on the back shell.
The con
..... you lose all 12 volt power to the front shell.
......you will not have 12 volt to the front shell from the converter.
......additional wiring plus a double pole double throw switch is required
to get 12 volts to the front shell from either the converter or the charge controller.
I think just don't use the load shedding function of the controller.
By the way we will be adding solar to our TM within the next month. Ours will be a variation on Mr Geek.
controller load drawing
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