Title:
AIR CONDITIONING SYSTEM
Document Type and Number:
Japanese Patent JP2015090223
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an air conditioning system capable of reducing an excess cleaning time of a connection pipeline without the adjustment of the cleaning time of the connection pipeline.SOLUTION: The air conditioning system comprises the steps of: using an outdoor heat exchanger as a condenser; starting the operation by setting the opening of an expansion valve in each indoor equipment at an initial opening; when detecting the state that an overheat degree of coolant on the downstream side of the indoor heat exchanger being below a specified value for a predetermined time in total sum, by determining that the cleaning of the connection pipeline corresponding to the indoor equipment having the indoor heat exchanger is finished, returning the opening of the expansion valve in the indoor equipment to the initial opening or setting the opening at a prescribed opening; and among pieces of the indoor equipment determined that the total sum time of the state that the overheat degree on the downstream side of the indoor heat exchanger being below the specified value is less than the predetermined time, the opening of the expansion valves in the pieces of the indoor equipment with the large overheat degree is preferentially increased.
Inventors:
NOBUHARA HIROHIKO
Application Number:
JP2013229342A
Publication Date:
May 11, 2015
Filing Date:
November 05, 2013
Export Citation:
Assignee:
YANMAR CO LTD
International Classes:
F25B47/00
Domestic Patent References:
| JPH10288410A | 1998-10-27 | |||
| JPH07198187A | 1995-08-01 | |||
| JPH04244557A | 1992-09-01 |
Attorney, Agent or Firm:
Patent Business Corporation Ark Patent Office
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