I honestly have not noticed much difference. The low side is set by the cutout switch. I suspect (not authoritatively) that the high side may be 5-10% higher at a given ambient. Dave S --- In dmcnews@xxxxxxxxxxxxxxx, "ksgrimsr" <knut.s.grimsrud@...> wrote: > > While the number of pounds of refrigerant might be handy when first > charging an empty system, it is not actually useful in my case where > I'm servicing an existing system that is partially (mostly) charged. > > Does anyone actually have optimal pressure values rather than rule > of thumb refrigerant amounts? I guess my next step would be to run a > sweep of pressures and measure cooling performance to ensure I hit > the sweetest spot, but that's a pain. > > Knut > ------------------------------------ To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/