[Gmcnet] Duracool compatibility

[Paul Hoynacki]

Please check out 
http://www.epa.gov/ozone/snap/refrigerants/lists/chiller.html
EPA sez Not Approved.
I though it was a dream come true, til I checked the EPA website.
~paul  Hesperia CA, '77 Eleganza

----- Original Message ----- 
From: "Eddie" <Eddie at Huffstetter.com>
To: <gmcnet at gmcers.org>
Sent: Saturday, August 09, 2008 10:15 AM
Subject: Re: [Gmcnet] Duracool compatibility


> Emery,
> Thank you for this post. Now I need to find it in Houston.
> -Eddie- Houston, TX
>
> ----- Original Message ----- 
> From: "Emery Stora" <emerystora at mac.com>
> To: <gmcnet at gmcers.org>
> Sent: Saturday, August 09, 2008 9:42 AM
> Subject: Re: [Gmcnet] Duracool compatibility
>
>
>> Gary - I have seen people add Duracool (HC12a) to an existing system
>> that already had R12 or R134a in it.  The Duracool site says that it
>> will do no harm.  However, since the Duracool provides a much lower
>> head pressure on the compressor and is more efficient in cooling and
>> at a relatively low cost, it makes much more sense to take out the
>> remaining R12 or R2134a and fill with Duracool.  If your system still
>> have refrigerant in it and has not had any air or moisture ingested
>> then you don't have to draw a vacuum.  You can bleed off the existing
>> refrigerant from the low pressure valve and fille with the Duracool.
>>
>
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