Air conditioning system

An air conditioning system comprising:

• a warm or cool air generating source unit,
• a capacity variable blower connected to the air generating source unit,
• ducts in fluid communication with the blower to distribute warm or cool air,
• dampers installed in the ducts for adjusting the air flow,
• pressure sensors for mesuring air flow volume outputted by the air generating source unit,
• a central thermostat comprising a liquid crystal display which displays data on the thermostat, a plurality of operator controlled switches for the operator to input information, the liquid crystal display displaying the inputted information,
• a control system having a microcomputer electrically connected to the operator controlled switches to receive the operator inputted information, a plurality of output devices connected to the microcomputer which are energized in response to specific input information, a first memory for storing initially inputted information and a second memory for storing programs and tables, the control system being operatively connected to the air generating source unit, fan, dampers, pressure sensors and thermostat with the operator actively interacting with the system by a question and answer dialog,
• a communication means for transmitting data between the control system and central thermostat, and
• control means on the central thermostat to bypass the control system enabling the operator to directly control the air generating source unit, fan, and dampers by means of the operator controlled switches with the operator inputted information and status of the air generating source unit, fan, damper, pressure sensors and thermostat being selectively displayed on the liquid crystal display.