Title:
AIR CONDITIONING FACILITY
Document Type and Number:
Japanese Patent JP3447317
Kind Code:
B2
Abstract:
PURPOSE: To perform stable airflow control, which follows a great change in airflow and is free of abnormal noises, resonance and the like, by applying floating control, which is consisted of step control step by step, to a control output of an air conditioning facility provided with variable airflow ventilators when air is fed to a plurality of air conditioning zones.
CONSTITUTION: When YES results from judging whether a demanded airflow varies greatly or not, it is meant that there is not so much change in airflow, and so control shifts to floating control. Also, whether at least one variable airflow ventilator (VAV) is fully opened or not is judged, and whether demanded airflows of one or more VAV are greater than a detected airflow or not is judged. Furthermore, whether demanded airflows of one or more VAV are equal to a detected airflow or not is judged. Then whether a one step-up output is in a jumping region or not is judged. In this manner, stable airflow control is performed corresponding to a great change in airflow.
Inventors:
Yutaka Fukushi
Keiji Kamada
Hiroshi Hasegawa
Keiji Kamada
Hiroshi Hasegawa
Application Number:
JP6051393A
Publication Date:
September 16, 2003
Filing Date:
March 19, 1993
Export Citation:
Assignee:
Topre Corporation
International Classes:
F24F11/04; (IPC1-7): F24F11/04
Domestic Patent References:
| JP61130747A | ||||
| JP4270851A | ||||
| JP257853A | ||||
| JP4208350A | ||||
| JP636334A | ||||
| JP63223396A | ||||
| JP6047497B1 |
Attorney, Agent or Firm:
Takehiko Suzue