In the world of rv cooling units a great deal of skill and knowledge goes into installing one. The main thing that separates a good install from a bad one is the proper sealing of the evaporator foam pack to its pocket. This requires careful attention and, if done incorrectly, the unit could easily rupture.
The next step is to test the unit’s operation by placing a cold towel under the fridge and running it on high for about 15 minutes. This is to make sure that the coils are not leaking, and that the evaporator has no frost. If there is a gurgling sound, the fridge has a hole and it is time to repair it.
Another important consideration when choosing an RV AC unit is its output, rated in BTUs. Generally, a 13,500 to 15,000 BTU RV AC will be adequate for most people’s needs. Also, consider if you want your RV AC to be ducted or not. Ducted RV ACs distribute cool air throughout the entire rig, and are typically found on larger Class A motorhomes and high-end fifth wheels.
Finally, if you want your RV AC to do double-duty by providing heat as well, look for a unit that has a built-in heat pump or can accept an optional one. This will save you money in the long run, since most RVs use their heating system as much or more than their air conditioning.