[IMG][/IMG]I work in a facility as a maintenance tech. They put me in charge of HVAC so I have learned a few things from the licensed guys there and an outside companies owner who is a AC guru. (you know you are Chris) Well a couple months ago they got rid of the guru and hired a big, well established company. The put a new compressor in a P.O.S water chilled unit. # weeks after we had them in to run new control wires for are hot water pumps for office heat. The payroll lady was complaining about it being hot so I looked at the ac and first I found no caps on the valves, Second thing I noticed was the sight glass leaking. I got the guy who helped installed it and he said quote" You dont need caps." Then I pointed out the sight glass and he said he would put his gages on it and check the pressures. WTF I'm barely educated on this and I dont mess up like that.