Title:
【発明の名称】空気調和装置の運転制御装置
Document Type and Number:
Japanese Patent JP3341404
Kind Code:
B2
Abstract:
A receiver (4) is provided on a main line (9a) and a bypass path (4a) provided with an on-off valve (SV) is formed for allowing gas refrigerant inside the receiver (4) to flow into a low-pressure liquid line. In addition, a defrosting operation is effected with a motorized expansion valve (5) fully closed and the on-off valve (SV) open. At the beginning of the defrosting operation, the on-off valve (SV) is put in a closed state and it is also put in the closed state when the discharge pipe temperature Td becomes equal to or lower than a predetermined temperature. In addition, when the discharge pipe temperature Td becomes equal to or higher than the predetermined temperature, the motorized expansion valve (5) temporarily opens to a predetermined valve travel, and when the defrosting operation is completed, the on-off valve (SV) is opened in a heating cycle and the motorized expansion valve (5) is gradually opened.
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Inventors:
Hiroto Nakajima
Seiki Inoue
Seiji Sakai
Seiki Inoue
Seiji Sakai
Application Number:
JP27200993A
Publication Date:
November 05, 2002
Filing Date:
October 29, 1993
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F25B41/04; F25B47/02; F25D21/00; F24F11/02; (IPC1-7): F25B47/02; F24F11/02
Domestic Patent References:
| JP5332644A | ||||
| JP238061U | ||||
| JP63120063U | ||||
| JP53141547U |
Attorney, Agent or Firm:
Hiroshi Maeda (2 outside)