ShanMan14 wrote:
Here is the response I got directly from Dometic:
Quote:
You may want to check your ducting runs to make sure they are not crushed in any areas or obstructed. Also make sure there is nothing blocking the return area of the unit. The 5K unit is the proper size for the 278 Four Winns.
I'm telling you... 95 degress with 90% humidity, this system isn't going to cut it. Particularly when it uses lake water to "extract cold", the lake temps are in high 80's in the summer.
Shan,
It does not use lake water to extract cold. It's a compressor filled with freon just like any other AC system. I beleive where you are getting confused is on the Reverse Cycle (heat) it's not only an Air Conditioner but it is also a Heat Pump. And as we all know, Heat Pumps can't pump heat when the air is at the freezeing point.
The Reverse Cycle Heat will lose about 50% of it's thunder when the water temp drops to 50 degrees. To be honest, how many of us will be out in those conditions?
On the AC side of things, the raw water is used to cool the heat exchanger because the AC unit can't get airflow like your Central Air or Window Units can, and the heat must be exchanged.
Now, if the water temperature is hot, I can see that having an effect because it can't rid the system of the heat so that it can generate cold.