Hey duc read my post.. I know how to charge it I am trying to clarify why it is if you charge the system according to the manual.... Eh.. Read the post I have written it about 8 times. I have only used super heat to charge or adjust Freon.. Based on the OEM Chart for Heil or ICP equip.. this is the only chart I have found. I got this from a school put on by a local supplier. This chart is better than the dinky chart in the installation manual. it is more specific. We have been installing mainly Luxaire or York Equip, with some Heil, Bryant, and a couple goodman. If you read my post I am trying to clarify that I am charging the system correctly because if you follow what it says in manual which I have been told by techs for the manufacturer, and techs at various supply houses where I have bought equip is the way to do it, the system is overcharged most every time. I am trying to determine whether the manual way of doing it is wrong or mabye I am doing something wrong. I Post here for some clarification. If I knew everything I probably would not be asking questions.
Originally posted by prodiyer Stop adding for your lineset. What I was getting at is you cant trust the manufacturers charge. So you may or may not need to add for the lineset and evap. Pull your vacuum crack her loose and charge by superheat or subcooling.
Read the last sentence in the paragraph above, THEN FOLLOW IT!!!