Title:
冷凍空調装置
Document Type and Number:
Japanese Patent JP4088671
Kind Code:
B2
Abstract:
A refrigerating and air-conditioning system includes a refrigerating machine connected to a showcase by a first refrigerant flow passage, an air-conditioning apparatus for connection of an indoor equipment and an outdoor equipment by means of a second refrigerant flow passage, which forms a different refrigerant circuit from a refrigerant circuit formed by the first refrigerant flow passage, and a centralized control unit for controlling the refrigerating machine and the air-conditioning apparatus, the centralized control unit configured to reduce a cooling operation set temperature in the air-conditioning apparatus relative to a fixed value according to a load on the showcase. When a load on the showcase increases, an indoor temperature is reduced by the air-conditioning apparatus so that a load on the showcase is reduced, reduction in operating efficiency of the refrigerating machine is suppressed, and an improvement in energy saving quality is achieved.
Inventors:
Kenichiro Katogi
Hidefumi Uesugi
Masashi Watanabe
Yasutaka Inaba
Hidefumi Uesugi
Masashi Watanabe
Yasutaka Inaba
Application Number:
JP2003089569A
Publication Date:
May 21, 2008
Filing Date:
March 28, 2003
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F24F12/00; F25B1/00; F24F11/00; F24F11/02; F25B7/00; F25B13/00; F25B5/02; F25B49/02
Domestic Patent References:
| JP10026389A | ||||
| JP1082484U |
Attorney, Agent or Firm:
Manabu Inoue