AnEv942 wrote:
IF your getting into refer outside-you don't need to reroute inside switch-just add another switch on the 12v input to turn off. Turn back on when ready to start truck (or after starting). You have a minute or 2 before the check light comes on if AC not available yet.
I'd do the relay (see previous post edit) but on the 12v side to turn on/off refer (control from cab, keeping fridge from looking for alternate source). If you want to make it auto could power the cab 12v switch that triggers relay to an ignition source. Truck turned off, power to relay cut/refer off. Start truck power to relay/fridge comes on. I don't know what controls your inverter but if it comes on before fridge goes to check-done.
Only problem with cab controlled relay- need to add a bypass when camped.
I am visual man and I better understand schematics, than descriptions, but what I understand - this idea requires getting into camper during fueling and other stops.
Having relay on 120V side makes it coming on automatically with truck/inverter start.
I'd parallel the relay with original on/off switch and all I have to do at the end of the day is open the propane and push the main switch on. That in lack of 120V will fire the burner.
Obviously with shore power, I have to replug fridge cord from truck to original outlet.
I understand your design used for 12V operation, but my goal is use truck inverter I already have with small cord.
