Refrigeration – Automatic control – Diverse – cascade or compound refrigeration-producing system
Patent
1994-02-09
1995-07-25
Wayner, William E.
Refrigeration
Automatic control
Diverse, cascade or compound refrigeration-producing system
165 22, 236 51, F25B 700, G05D 2300
Patent
active
054351472
ABSTRACT:
An air conditioning control system ensuring the desired full utility so that the operation of a plurality of air conditioners installed in a building can be controlled and monitored at a plurality of spots in the building. The air conditioning control system includes a building's central monitor board controlling and monitoring the operation of the individual air conditioners, and a centralized control unit relaying air conditioner control information outputted from the central monitor board and information indicating the operation status of the individual air conditioners, each of the central monitor board and the centralized control unit including an input part inputting the control information to the individual air conditioners and a display part displaying the operation status information regarding the individual air conditioners. The centralized control unit further includes a decision part deciding to identify newest control information inputted from the input part of each of the central monitor board and the centralized control unit and a transmitter part transmitting this newest control information to the individual air conditioners.
REFERENCES:
patent: 4313560 (1982-02-01), Stiles
patent: 4829779 (1989-05-01), Munson et al.
patent: 5279458 (1994-01-01), De Wolf et al.
Isikawa Miki
Kato Takashi
Mochizuki Masamichi
Sato Keiji
Sugiyama Tatsuya
Hitachi , Ltd.
Hitachi Shimizu Engineering Co., Ltd.
Wayner William E.
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