Tech preformed CMA FULL SERVICE on 1 Gas Package Unit, 1 Split System, 1 Air Make-up Unit and 1 Exhaust Fan. Split System is operating within specifications at this time but Tech had to clean Evaporator Coil several times to get the excessive grease and debris removed. The inside of Air Handler Unit is also covered in grease. Tech did find Air Handler belt squealing upon start up, tech did adjust belt tension and line belt up but squealing persisted. Tech believes it is due to bearings in blower shaft. Compressor also tested in caution area of megohm test. Tech will have office contact customer with solutions. Gas Package Unit is operating within specifications at this time. Tech did find Air Makeup Unit with loose blower belt, tech has attached estimate to invoice for cost of replacing belt. Exhaust Fan is operating at this time. Tech has also attached SYSTEM PERFORMANCE REPORTS to invoice along with pictures.