Upon arrival found that there are three units not cooling, there’s two big split units on the third floor that do the hallways and on package units that does the left side of the lobby. On the package unit I found that it was empty on refrigerant, found a bad belt and a cracked heat exchanger, with systems age and condition recommended replacement. Was unable to get all the tag information on package unit due to placement and a duct run. For the hallways on left side found system empty on refrigerant and one of the condenser fan motors spinning backwards. On the right side for hallways found that system empty on refrigerant as well as a bunch of wires disconnected with no schematic to figure out where wires go. Due to refrigerant, age and condition system will have to be replaced. Uploaded all information and pictures of where units are located, will need a crane for package unit and the condenser for left side due to it being on roof, roof height is around 25-30feet and about 50-60 fe