LG Through the Wall Air Conditioner, Energy Star, 8000 BTU, 115V Protects the unit from the corrosive effects of outside air and extends the operating life of TTW models # 12-Hour on/off timer - Allows you to set the number of hours up to 12 hours, you'd like the unit to run. # Auto restart - Automatically restarts a unit to programmed setting when the electricity comes on after a power failure. # Cooling mode # Auto sleep mode - Automatically increases the temperature setting 2 twice (after 1/2 hour and one hour). The interior unit shuts off when # Fan mode