Title:
CONTROLLER FOR REFRIGERATOR
Document Type and Number:
Japanese Patent JPS5829022
Kind Code:
A
Abstract:
PURPOSE:To suppress the consumption of unnecessary energy, by increasing the set value of temperature of cooling water when a load of a refrigerator is low by a specified value and decreasing the set value by a specified value when the load is increased. CONSTITUTION:A refrigerator input is applied to a refrigerator F from a heat source 1 and a refrigerated output is generated from the refrigerator F. This causes a decrease in the temperature of cooling water outlet and the flow of cooling water is delivered to a room to be cooled. Heat is taken from the room through a fan coil 13 to warm the cooling water and the cooling water is returned to the refigerator F to obtain a cooling water inlet temperature. A controller 14 obtains a load of the refrigerator F with a detection signal from a temperature detector. When the load is decreased, the controller 14 increases the cooling temperature set value by a specified value in the process of the cooling temperature to be the heating start temperature, and when the load is increased, the controller 14 lowers the set value by a specified value in the process of the cooling water temperature to be heating stop temperature. Thus, the consumption of unnecessary energy can be suppressed, allowing to prevent the fluctuation of cooling water temperature at random.
Inventors:
HIBINO YOUZOU
KAMESHIMA KOUJI
OOIZUMI JIYUNICHI
TAMURA MORIO
KAMESHIMA KOUJI
OOIZUMI JIYUNICHI
TAMURA MORIO
Application Number:
JP12665681A
Publication Date:
February 21, 1983
Filing Date:
August 14, 1981
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F25B15/00; G05D23/00; G05D23/19; (IPC1-7): F25B15/00; G05D23/19
Attorney, Agent or Firm:
Toshiyuki Usuda