Peralko wrote:
Your rear A/C should freeze you out. If not, there is something wrong with it. Turn it on and check the discharge air with a thermometer. It should be 65 degrees or cooler. If you are already thinking about another A/C, just get it and replace the rear A/C. We have three A/C units, but the only time we run all three is when visiting Las Vegas with temperatures over 110 degrees.
I feel part of the problem is that the two units are really in the 'front' of the coach. The front one is almost directly above the drivers area and the second is just behind the kitchen area.
What this means is that the ducting on the second unit has probably 16-18 feet to travel to cool it's area whereas the front unit has only about 4-6 feet of travel. What that equates to is a tremendous loss in velocity of airflow to the rear of the coach.
Maybe I just need some kind of booster in the ductwork towards the rear???