Utilizing Refrigerator While Driving to RV Park

OK 30A RV shore power (3 prong Y type) and RV (absorption type) refer.

Typically when on shore power the charger charges the battery and the refer runs on AC. When driving the alternator charges the battery and the refer runs on propane. Very little DC power is used by the refer so it will run as needed on propane when not plugged in. Allow for overnight cooling before packing and don't hold the door open for extended periods and it will serve you well. :B

So I did actually get a hold of the demo person and he said that with our unit to plug the power cord into the receptacle in the back compartment and then set the refrigerator to "automatic" and it will know to use the electric as power source and charge our battery at same time. The frig can run off of LP gas or electric. Previously we had a travel trailer and always waited until we got to the site before powering up the refrigerator.

Sounds like salesman was telling you to use generator while traveling down the road to keep residential fridge running if you are plugging your 30 amp cord into onboard receptacle.

Generally, our experience is if our fridge is at proper operating temps and contents within are cold we can go a few hours without any cooling and just plug in when we arrive to our site.

The majority of RVs have absorption type fridges where they can utilize propane to cool while underway to their next destination, of course on propane mode they should be turned off while refueling.

If all else fails don't open the refer while traveling and if not to long or hot you may be OK until on shore power again.

If the refer is a typical RV propane type then use propane while driving. Most will use AC when plugged in and automatically switch to propane.

If it's a AC only type (res refer) then your AC power comes from:
1. Shore power
2. Generator
3. Inverter which converts 12V battery power to 120V AC power.

Recommend you call the demo guy for clarification. Better ask for instructions via email.

Based on your post using the refer may not go well until you get the process down pat. ABOVE ALL food spoils above 42 degrees so get a thermometer. :(

Yes, it is a residential fridge

No, that doesn't sound right. You have a residential fridge?