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U.S. Department of Energy
Office of Scientific and Technical Information

Energy conserving heating and air conditioning system

Patent ·
OSTI ID:6594698
An energy conserving system is disclosed for heating and air conditioning multi-zone structures such as multi-story office buildings. A conventional heating and air conditioning system for a multistory building has a central cooling unit for supplying chilled water for cooling and separately controlled fans or blowers for circulating cooled air in each story or zone. Separately controlled air heating (or reheating) means is provided for each story or zone. Usually the system is inactivated at night and on weekends in office buildings. When the system is inactivated, bypass timers are provided to permit the system to be turned on in selected areas during off hours. An energy conserving system (and method of operation) for the aforementioned heating and air conditioning system includes timing means operated sequentially at different periods of time which shut down the coolers prior to shutting down the blowers at the end of the day. In addition, timers are provided to inactivate selected blowers during selected periods of time. Suitable thermostatic controls are provided to activate and inactivate the system in accordance with predetermined outside and inside temperature values.
Assignee:
IFI; EDB-81-062661
Patent Number(s):
US 4237966
OSTI ID:
6594698
Country of Publication:
United States
Language:
English