[Gmcnet] Duracool compatibility

[Eddie]

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.
>