Specifications include, but are not limited to: 1. Refrigerant replacement in DX Systems as needed. 2. Examine each piece of equipment and device to see that it is functioning properly and is in good operational condition. 3. Clean all components of dust, old lubricants, etc. to allow the equipment to function as designed. 4. Inspect all ductwork for loose or missing insulation, where necessary, repair and/or replace. ; 5. Inspect all ductwork for loose duct tape or access panels (that would allow air leakage); repair or replace as needed. 6. Lubricate all equipment where needed to permit bearings, gears, and all contact wearing points to operate freely and without undue wear. 7. Adjust all linkage, motors, drives, etc. that have drifted from the initial design settings and positions. 8. Calibrate all sensing, monitoring, output, safety, and read-out devices for proper ranges, settings and optimum efficiencies. 9. Vacuum out all supply and return diffusers. 10. Check operation of supply fan making any adjustments and performing any lubrication and/or fan belt adjustment or replacement, if applicable. 11. Check proper operation of outside/return air mixing dampers and associated controls and wiring. 12. Check and clean condensate drain and pump for proper operation. 13. Check operation of thermostat fan switch and all interfaced control systems for proper fan operation. 14. Clean condenser and check operation of condenser fan. 15. Clean coil with EPA approved, non-corrosive coil cleaner. Check integrity of drain pan.