whytemoney
06-05-2009, 04:22 AM
I just switched over from installing to service two months ago and doing preventative maintenances.Getting rooftop package units (5-15 tons) ready for summer.I need to know if someone can tell me the correct way or show me a site that can help me out to charge my units as perfect as i can get.Which would be sub-cooling and super heat,right? Any help is greatly appreciated.