I just did my first, leak fix, evac. and recharge on a ac unit for an office in my factory. (It's not really mine) My head is swelled, but I still don't feel like I did as well as I could of. I have some questions. The office is located on the first floor of the factory and the condensor unit is on the roof (2 stories up). I am unsure how to fill the unit properly. Down at the air handler/evaporator there is no actual metering valve. The high side line splits into about 6 smaller lines and they enter the evap. (capilary system, I assume) The condenser has a spec label that says I need 5 lbs 3 oz of R22. Does this take into account the 2 story length line set?? What if the installer cut the factory lines off to length? I filled the system with 3 lbs of 22 liquid on the high side, started the compressor and finished on the suction side with vapor to a total of 4 lbs 8 oz. and it is working well so far. 51 deg F. air at the duct entering the office. How should I properly fill this unit? Also, the only sercice valves are on the roof with the condenser. Thanks for the help!!