1. Air handling unit
2. Barometric dampers (generally on Evap cooler)
3. Blower
4. Base pans
5. Plenum
6. Condenser unit
7. Compressor
8. Condenser fan motor
9. Electric disconnect for condenser unit and wiring from disconnect to condenser
10. Ducted electric central air conditioner
11. Ducted electric wall air conditioner
12. Expansion valves
13. Freon
14. Package units
15. Service valves
16. Thermostat
17. Water lines outside the home for a water source heat pump (access for water lines not covered)
18. Water source heat pump

Possible Uncovered Warranty Items

1. Access for air conditioning line sets and drain
2. Batteries on the setback thermostat
3. Cleaning of Evap coil drain lines and cleaning
4. Cleaning coils (general maintenance)
5. Condenser casings
6. Coil drain pans
7. Condenser base pads
8. Condensate drain or lines 
9. Condensate pumps
10. Electronic air cleaners
11. Humidifiers
12. Energy management devices
13. Evap cooler stands
14. Filters 
15. Evap cooler pads
16. Condenser coil (general maintenance)
17. Freon recovery and disposal
18. Gas air conditioning systems (ammonia)
19. General maintenance
20. Hazardous materials
21. Leveling air conditioning equipment
22. Lime build up on the condenser coil for a water source
23. Load controllers
24. Mismatched systems 
25. code upgrades
26. Permits
27. Precooler (energy management)
28. Register and grills