[DML] Re: AC clutch running continuously

["David Teitelbaum" <jtrealty@xxxxxxxxxxxxx>]

I am NOT saying you cannot convert a -12 A/C system to -134. Reread my
post. The compressor does not need to be changed but you do have to
flush out the old oil. The hoses *should* be replaced and I am sure
the ones you sell will work, the old ones will not last and they will
leak. The evap coil and the condensor coil are not properly sized  for
the proper functioning of the system to handle the -134 hence the loss
of some cooling capacity. IMHO as long as -12 is available or you can
use a drop-in replacement it is not worth the conversion. If anyone is
that worried about the environment then the *best* thing they can do
is make sure they have a systen that doesn't leak. There are literally
MILLIONS of old refrigerators and window A/C units in use with R-12.
They don't tend to leak as much because of the hermetic compressors so
they run longer before they need servicing. I don't see many people
converting them to -134. I stand by my years of experience and field
observations of what works and what doesn't.
David Teitelbaum
vin 10757


--- In dmcnews@xxxxxxxxxxxxxxx, "John Hervey" <john@...> wrote:
>
> David, 
> What seat of the pants information are you coming up with about
converting
> old NOS 30 year old parts to New R134 systems.
> I can't believe your saying this. Man, what are you trying to do to
all the
> people on the chat groups about updating the AC system. Don't you
think the
> new Goodyear hoses I build will not hold the pressure? Do you think the
> compressor made for R134 won't perform?  Do you think the
evaporators and
> condensers won't work.
> You need to talk to engineers a little more before you try to put out
> 



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