초록 ▼

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 multi-story building has a central cooling unit for supplying chilled water for cooling and separately contro

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 multi-story 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, by-pass 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.

대표청구항 ▼

A control system for office building air conditioning equipment comprising heating, ventilating and refrigerating apparatus having separate electric circuit means controlling the heating, ventilating and refrigerating components comprising first circuit means adapted to be operatively connected to a

A control system for office building air conditioning equipment comprising heating, ventilating and refrigerating apparatus having separate electric circuit means controlling the heating, ventilating and refrigerating components comprising first circuit means adapted to be operatively connected to and controlling energization of said refrigerating and said ventilating circuit means, second circuit means adapted to be operatively connected to and controlling energization of said ventilating circuit means, first time controlled switch means positioned in said first circuit means operable to be closed at a selected hour in the A.M. to place said refrigerating and said ventilating circuits in condition for operation and operable to be opened at a selected hour in the P.M. to inactivate said refrigerating and said ventilating circuits, second time controlled switch means positioned in said second circuit means operable to control the same to control operation of said ventilating circuit means independently of said first circuit means and said second time controlled switch means being operable to be closed at a selected later hour in the A.M. and opened at a selected later hour in the P.M. than said first time controlled switch means whereby said ventilating circuit means is operable to remain energized for a selected time after deenergization of said refrigerating circuit means.