|
Posted by JimL on August 4, 2006, 12:09 pm
>
>This is a two part Bryant Air Conditioner...24,000 btu. model number 513..
with a
>through the wall compressor and coil. The second section is ceiling mounted
air floor
>distribution. Installed in 1994...R22 system. Has had regular preventative
maintenance.
>
>The system turns on (several existing problems have been repaired, I think
we're looking
>at the original problem) ....compressor
>starts normallly and runs for a few minutes. When it's time to cycle,
compressor
>keeps running, getting louder and louder (at which point I shut it off).
After
>waiting a period of time, the system can be started again and the
>process repeats itself. Starts normal and then runs on.
>
>It does cool properly....and the fans are operable both in auto and cont mode.
>This is a cooling only unit.... (not a heat pump)
>
>Coils have been cleaned. A diagnosis was made about the flare connection
>to the metering valve leaking like a "sieve", but I think this problem might
have
>been introduced into the system during diagnosis, as the freon level was
measured
>to be acceptable.
>
>Any leads as to where the problem might be ???
>
>Thanks in advance !!!
>
>Peter
The compressor should have absolutely NO power applied when it is
'time to cycle'. Usually the 220 v power is removed by a
contactor(relay). The contactor is controlled by a 24 volt
thermostat line.
I suspect your diagnosis is wrong and it never reaches thermostat
shutoff. I suspect either a gross overcharge or burnt winding in your
compressor or both.
.
| 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap