Refrigeration – With indicator or tester – Operatively correlated with automatic control
Patent
1990-01-11
1993-04-13
Ford, John K.
Refrigeration
With indicator or tester
Operatively correlated with automatic control
62130, 62175, 62185, 62201, 62203, 361385, 16510433, F25D 2900, F25D 1702, F25B 4900, F25B 4100
Patent
active
052011879
ABSTRACT:
A control system for controlling cooling equipment comprising a refrigerant circuit for cooling water by heat exchange, a plurality of cooling modules in a backup relationship with an adjusting apparatus for adjusting the cooling capability of the refrigerant circuit and a controller controlling the adjusting apparatus for adjusting the cooling capability, a control module having a coolant temperature sensor and a controller for calculating a cooling capability control command based on the value detected by the coolant temperature sensor. The controller in one of the cooling modules controls the adjusting apparatus and on the cooling capability control commend transmitted from the controller in the control module. Each of the cooling modules has a coolant temperature sensor for detecting the same coolant temperature as detected by the coolant temperature sensor of the control module so that, when an abnormality occurs in the coolant temperature sensor in the control module, the controller in the control module calculates the cooling capability control command based on the value detected by the coolant temperature sensor in the cooling module. The control system is therefore capable of performing a backup operation effective for the occurrence of an abnormality in the control module.
REFERENCES:
patent: 4660386 (1987-04-01), Hansen et al.
patent: 4674291 (1987-06-01), Kitauchi
patent: 4821528 (1989-04-01), Tershak
patent: 4829779 (1989-05-01), Munson et al.
patent: 4876859 (1989-10-01), Kitamoto
Kato Takashi
Murakami Kyoshiro
Yamashita Tetsuji
Yoshikawa Tomio
Zushi Shizuo
Ford John K.
Hitachi , Ltd.
LandOfFree
System for controlling cooling equipment does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for controlling cooling equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for controlling cooling equipment will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1148276