RE: Roof Top A/c
parkercouple - 7/23/2007 3:54 AM
I have a 97 Fleetwood 29 ft Class C. My Question is are the New A/C units better then what i have. Mine doesnt keep the inside of my R/V very Cold. It works and Blows Cold but it seems like I would get way more Air out of the Ducts.
Thanks
Chris
What are the BTU Ratings? 30ft I would go with a High Efficiency AC 15kbtu you can probably get by with a 13.5btu
If you feel yours needs recharged check your amp draw that will tell you. using a clamp on amp meter or any amp meter, check the amp draw at the breaker when on high cool, a 13.5kbtu unit runs around 12amps high cool 85+deg.
so low amp dram in the (1-4)range on high cool means low coolant, high amp draw above 15 (your breaker would most likely trip) mean bad compressor.
If you have a 20deg difference in out put air & outside air, then the AC is fine.
They sure don't build them like they used too, and Carrier has gotten into the AC line they are much better built units than any available but they run on a high amp Draw 15amps.
What i see more than anything is a return air issue, thats where your getting a leak in cold air, lower the upper controlls and make sure that all the area around the ac is taped off so no hot roof air is sneaking in, very common problem, also try retitening the roof air support bolts, if loose hot air sneaks in thru the seal.
:shy: