5-2-25 Return visit to check pressure testing on system # 10 this is the one with the thermostat is in the ladies room Check the pressure gauge I had on the condenser unit. It was maintaining pressure at 500 psi. Today I removed the nitrogen charge tested the flow through the line set and liquid line dryer including the evaporator, flow all the way through. Evacuate the system to 500 microns and then recharge the system with 5 pounds of R410a refrigerant per the manufacturer specs, 3 ton system. After installing the refrigerant having some issues with my suction pressure and my superheat found the air handler was set on low speed for AC. I increase this to high speed, had issue with a real low evaporator split. Put the unit into medium speed, evaporator was good at 20° But my super heat was 7°. on a daylight today being 57° out and no real load on the system since it just has a restricted, my superheat should be a lot higher. This building and ductwork was not really set up for AC