R134a retrofit questions?

[David Ullrich]

IIRC it's 47*F but not 100% sure. There's a small screw on it to adjsut it.

Dave


On 10/23/08, Dave Yentema <yentemad at rider.edu> wrote:
>
> What is the compressor cutout set to stock? And how do you go about
> adjusting it?
> ----- Original Message ----- From: "David Ullrich" <
> david.ullrich at gmail.com>
> To: <quattro at audifans.com>
> Sent: Thursday, October 23, 2008 11:09 AM
> Subject: Re: R134a retrofit questions?
>
>
> Wel, I've never owned a type$$ but on my old type85, I did the conversion
>> that way and it worked great. The key was putting in only about 75% of the
>> equivelent r-12 charge then slowly (VERY SLOWLY) adding more while
>> monitoring vent temps. When vent temps bottomed out, stop adding. I also
>> adjsuted the comrpessor cutout thermostat so that it didnt cut out until
>> termps hit 33*F...ended up with vent temps of about 35*F...nice and
>> chilly.
>>
>> Dave
>> -Audiless for now
>> -Wanted: CGT Triple White
>>
>>
>> On 10/23/08, John Cody Forbes <cody at 5000tq.com> wrote:
>>
>>>
>>> Others may have different results, but every time I've tried 134a in any
>>> of
>>> the 4 5000's that I've owned (that had working A/C bits) I've been so
>>> dissapointed that I've switched back to R12. Living in south Florida with
>>> my
>>> black 5000tq I could only get cold enough to just barely stop sweating
>>> with
>>> 134a (vent temps in the high 60's). With R12 it would achieve the set
>>> temperature and vent temps in the low 50's or better.
>>>
>>> YMMV, etc.
>>>
>>> -Cody Forbes
>>>
>>> Dave Yentema wrote:
>>> > hey guys, got a couple of questions about converting the ac in my car
>>> > (875kt)
>>> >
>>> > she has never been retrofitted to 134, and from lack of use 90% of
>>> > the r12 is gone, its low to the point that the comp won't even run(I
>>> > tested this by jumping the connectors on the low pressure switch) So
>>> > after weighing out all the options, i've decided that the conversion
>>> > is my best bet right now.
>>> >
>>> > I've seen my dad do the conversions before, and whenever he did it
>>> > professionally he would just evacuate the r12, change the fittings,
>>> > drop some ester oil in and charge it up with 134 (Even though this
>>> > isn't the recommended procedure, it always worked) . He knows his
>>> > stuff with AC, does everything the old fashioned way with just the
>>> > manifold gauges and knows exactly what lines to touch, etc. Having
>>> > him help me on this isn't really an option for this.
>>> >
>>> > This is what I'm picking up:
>>> >
>>> > -New receiver/drier (from AutohausAZ)
>>> > -134a retrofit kit, not the one with the oil, but its got all the
>>> > fittings and o-rings I'd need (also from autohaus)
>>> > -Polymax2 oil http://www.autoacsource.com/store/coolzone_oil.html
>>> > -Variable orifice
>>> > tubehttp://www.acsource.com/index.asp?PageAction=VIEWCATS&Category=273
>>> >
>>> >
>>> >
>>> >
>>> > I know that the system holds about 39oz of R12, and it'll take about
>>> > 85% of that with 134, so about 33oz?
>>> >
>>> > and how much oil does it take? I read somewhere it takes 8oz but i'm
>>> > not sure.
>>> >
>>> > also, any reason  why I can't do all of this while its getting colder
>>> > outside? or should I wait till springtime to try and fill er up so to
>>> > speak
>>> >
>>> > any suggestions would be awesome
>>> >
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>>
>>
>> --
>> David G. Ullrich
>> Cavu Consulting
>> "Finally, Affordable Technology Help"
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>
>


-- 
David G. Ullrich
Cavu Consulting
"Finally, Affordable Technology Help"