Ok, so I am not a heating and a/c expert, but my brother is, does that
count?? Thanks for correcting my error. Now when Bree goes to talk to
the guy, she will have the CORRECT information to ask him about. Bree,
print out Ron's reply, it will help.
Brad
Ron Soave wrote:
> --- Brad Fornal <toyman@digitex.net> wrote:
> > I had the 70 Impala converted to Freeze 12. The guy
> > told me that if it blew out warm air, it was because
> > the condenser
> > core was freezing up from being a bit low.
>
> BF,
> That'd be the evaporator freezing. The condenser
> "high side" is where the refrigerant enters as a gas
> from the compressor and changes phase to a liquid at
> constant (nearly) pressure and temperature before
> entering the expansion valve. After expansion, it is
> now on the "low side" of the system, where it then
> goes into the evaporator distributor pan as either a
> liquid or 2 phase mixture ("under the dome", in P-H
> terms). Because the refrigerant is accomplishing work
> by expanding (very roughly equal to the work the
> compressor has done in compressing the gas), there is
> a large temperature drop, and the refrigerant is now
> cold. On a refrigerant properties diagram ("P-H", for
> Pressure-Enthalpy), the lower the pressure, the lower
> the temperature. So if you're icing, chances are the
> evap pressure is too low.
>
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