Building has two 40 ton package units on the rooftop Rtu#1. Filters= 10=20x24x2 belts= 2x 5VX550 Inspected blower it is in good shape and clean, inspected belts both are in need of replacing, inspected filters they are extremely dirty and need to be replaced, inspected evap coil it is, very dirty it is in need of a cleaning, inspected condenser coil they are dirty recommend and cleaning on them, inspected all electrical wiring and connections none found burned are broken at this time checked all lugs on system to verify they are all tight, inspected contactors all in good shape very little pitting, inspected heat exchanger it has some rust but know holes are cracks found they are stainless steal heat exchangers, inspected burners all in good no rust, inspected flame sensor cleaned no pitting are cracks at this time, inspected spark ignition it is in good shape no cracks are breaks, inspected and tested ran both stages of the system each stage has a a hi fire and low fire tested a