Coleman Mach 15 AC Unit
I was at the RV show in Pomona CA this last weekend and was going through a new Tiffin Bus and the "sales" guy said that the AC units would lower the inside temp of the RV greater than the 20 degree r...
Forum Discussion
dougrainer wrote:Doug, I read the literature from MVP but their comparison chart didn't really show which was the Mach 15 and Mach 8. Do you have a comparison chart or link or something like that?
I know what some will say---The salesman mouth was moving and he was lying. Well, sorry to say this is true, he may not be lying, but he has NO IDEA what he is talking about. The 20 degree "rule" is just an operational check for non technical people to verify if the AC is running and cooling to spec. That means the OUTPUT cold air will be 20 to 22 degrees LESS than the input air. HAS NOTHING TO DO WITH OUTSIDE AIR TEMP. It just means as the RV (or house) cools down the OUTPUT air will be 20 to 22 degrees colder than input---ie-- the inside of the RV is 90 degrees and the AC is started. After about 15 minutes the OUTPUT will be around 65 to 70 degrees and will get colder--after running the input air is now 80 degrees and the output is 60 or a little lower. The output will gradually get colder and colder as the RV cools down. The MAX output cold air will usually peak at about 40 to 48 degrees depending on humidity and the insulation of the RV and how hot the outside temps are. Home units operate about the same differential. The NEW Tiffins use the Mach 8 which is a brand new smaller physical size RVP (Coleman). Still has the same BTU's but is quieter and more efficient than the previous model RV models. Doug
