Dometic A/C on 2009 Monterey sunset

[Dennishunt]

Having trouble with one of my Dometic A/C units.  Does anyone know if they are 13,500 BTU'S or 15,000 BTU's?  with a heat pump?

[Joel Ashley]

From the brochure:  “Three 13.5M BTU Roof Air Conditioners with Wall Thermostat and Heat Pump (Malibu 42, Sunset 42)”.
Optional were:  “Two 15M BTU Roof Air Conditioners and One 13.5M BTU Roof Air Conditioner with Wall Thermostats and Heat Pumps (Malibu 42, Sunset 42)”. 

I assume your “43 ft.” is actually the 42’ 8” Sunset;  no 43’ is in the pamphlet.

Joel

[Dennishunt]

Joel:

Thanks for the Air-Conditioner help.  Of the 3 units on our roof, will have to climb up to see which one is the 13, 500 BTU.

Don't know about the length.  I bought the coach January 2018 in Mesa, AZ and it had 13,500 miles on it.  I have always been told it's a 43 footer, but you may indeed be correct on the 42.8 ft. length.   

[Joel Ashley]

If the option wasn’t used at the factory, Dennis, all your units are 13.5.  You may not need to go on the roof;  our units have ID labels that can be viewed by opening the roof access/vent door inside the coach.  In my case the info on the labels is partially blocked by a 110v wire and a fluid hose, but they can be moved aside enough to read things... albeit with a flashlight and younger eyes .

As to length, manufacturers generally go by the nearest achieved whole foot length, even if it’s closer to the next highest whole foot.  Thus Monaco would print yours in the brochure as a 42, and my 36’ 10” as a 36.  But salesmen and owners selling theirs might quote 43’ and 37’ because longer sounds better, and is closer to the actual length.

Joel