This has been around, but I can not find it now.
I read 51.5F output on the dash vent, Question, is this about right ?
Outside temp 86F as I am driving down the Interstate to ward Indy, IN. today.
Thanks
Dave M
Dave, that's more than good. After having spent roughly $2000 having my dash A/C repaired during the past 6 years, mine is out of refrigerant again. This time the refrigerant held for a whole year. I'm at a loss as to what to do. I consider the dash A/C a very important safety feature during humid and rainy conditions. I wish I knew of a competent auto A/C shop around here.
Peter go to your local thermo king. They fix truck refers and dash airs and can fix yup right up and usually have everything in stock. You have a leak and I brt it is in the linen running under the coach.if so they can connect a new linnet the ok'd one coat it in vaseoline and pull it through. They will find it. They found three leaks in one of my hoses. It hoed after being refilled but leaked out. Your coach is of the age when the lines will start to wear morem
Dave, I will check for you tomorrow. I thought mine was colder than that. But who knows. I will get ambient and then dash temps.
Dave, I really think that output temperature is very good. You know there's a problem if the compressor begins to start & stop intermittently (watch the clutch at the compresor belt) and the dash air is not as cold as yours. The high/low pressure switch causes the compressor to start/stop to protect itself. Once the refrigerant pressure goes below the pre-set spec, the compressor will shut down completely.
John, thanks for recommending Thermo King. Lord knows while at Del Monte and Chiquita we used Thermo King units in all the over the road refer containers and trailers...and that was thousands of units for the over the road equipment as well as the very large units in the shipping vessels as well. They are a top notch refrigeration equipment outfit.
There is a local dealer not far from I-275 only a few miles from me.
I would LOVE to get 51.6° dash air with outside temperature of 86°. I would say that you have a dash air conditioning unit that works as well as any out there.
Paul 36' 2000 U320
Mine will freeze my knees off.
'Course, that's about all it cools...
One thing I have been told is that the newer R134A has smaller molecules then the old R12 and therefore leaks easier. Because of this most automotive A/C systems are mostly hard line and very little hose. Older hoses such as the ones on my R134A conversion are even more leaky. In my case there is only very little hard line and mostly hose. I do no know about the Unihomes but if they are mostly hose then you will have leaks and have to recharge. I think mine lasted two years before it had leaked down to the point of the compressor not turning on because of the low pressure switch. My '96 truck finally lost enough freon to stop working this last year so it lasted 13 years.
There is a company here in Houston called Cool Flow that can make up hard lines but I would need access to a pit for several weeks to install them so I'm left with having to recharge more often then I would like.
Dave, the automotive A/C industry considers 25 deg differential to be optimum since you are getting 34 i would say that your doing very well.