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Posted: Sun Aug 19, 2012 5:28 pm
by tsawyer
It seems to be running better today and is keeping the cabin cool in the heat of the day.
As long as it can keep it up without frequent servicing then I'm happy.
Only time will tell if it has a more substantial problem/leak.
Posted: Sun Aug 19, 2012 5:31 pm
by prowlersfish
True you can charge a self contained system by using the correct amount . buy you have to recover and recycle what is in there be before charging , and you don't see many marine A/C techs doing that . Do to the extra equipment they have to carry on to the boat and the extra time it takes . However it is the best way to do it.
A/c systems should not leak But with a remote unit some loss over time can happen . With a self contained system I would expect no leaks .
Posted: Mon Aug 20, 2012 10:00 am
by larryeddington
While what paul says is true the other and absolutely best way is I mentioned using superheat charts and cooling medium temp etc., very few will do that they will just look at pressures and guess on the cooling medium temperature, water or air.
++ on pauls method for self contained. Additionally non self contgained units come pre charged for a specific amount of piping. If piping longer or shorter than specs then superheat adjustment is the only sure way. Most good AC mechs can hit it pretty close though without it.
Re:
Posted: Sun Jul 06, 2014 10:20 am
by flashyroadster9
aaronbocknek wrote:hi guys, i got this email from someone who is a marine a/c tech. i'm cutting and pasting his entire email to me for you all to see....... (and i have no idea what a delta t temp calculation is.)
aaron
On Sun, Aug 5, 2012 at 11:49 AM, Rico <rdriggsmarine@yahoo.com> wrote:
Hello I am new at this forum thing I don't know how to reply. You seemed to have the most correct info for delta t temp. difference, inside humidity plays a major role also, that is why as a a/c tech I always check the humidity with my delta t calculations, I am in myrtle beach SC. and my main though is to let people know to check there water coil for slime build up, this is a condition that descaling acid Will normally not remove, evaporator coil cleaner blasted through with a garden hose and over board seems to work best.
@aaronbocknek Hi, what coil cleaner did you use? Do you know about Gur Technologies that manufacture what they call revolutionary coil cleaners? They have Gab-Coil and Nar-Coil that seem to be commercial and industrial grade.