On 27 Aug 2006 19:16:49 -0700, "Mark" wrote:


Stormin Mormon wrote:
Bryant Air Conditioner 24000 btu split system - R-22.

I would like to read the charge on this system.

I know I will get flamed for this by the pros, but whatever....

If your system has the correct charge then the evap coil will be cold
for its full length but somewhere along the return pipe to the
compressor it will start to feel warmer indicting all the freon liquid
has evaporated and only vapor is returning to the compressor.

If the system is overcharged, the return pipe will be cold all the way
back to the compressor and liquid freon may be entering the comp which
is not really a good thing.

If the system is low on charge, then only a portion of the evap oil
will be cold, the portion nearest the expansion valve.

In short, with the correct charge, the full evap coil is cold, but not
the retun pipe.

This is obviously a guideline. Also, if you don't know what I mean by
evap coil or expansion valve then you need to do a bit more studying.

Mark


Thanks !! I have a somewhat accurate laser thermometer coming in this
week (hopefully)...at which point accurate measurements will be taken
throughout the system. This guideline sounds like a good starting place.

Regarding the book... I've been working my way through John Tomczyk's
"Troubleshooting and Repairing Modern Air Conditioning Systems). It's been
pretty informative.and has good information, but the advice that has been
coming from the members on this forum has been priceless in helping me
understand what to look for and also finding information on the net.

Thanks again for your help !!

Peter