Title:
AIR CONDITIONING DEVICE
Document Type and Number:
Japanese Patent JP2017116155
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To execute a refrigerant charging operation capable of properly charging a predetermined amount of refrigerant to a refrigerant circuit without excessively lowering an indoor temperature even when an outdoor temperature is low, in an air conditioning device including the refrigerant circuit constituted by connecting an outdoor unit having an outdoor heat exchanger and a plurality of indoor units having indoor heat exchangers through a liquid refrigerant communication pipe and a gas refrigerant communication pipe.SOLUTION: A control portion (8) starts a heating refrigerant charging operation executed while keeping a refrigerant circuit (10) in a heating cycle state, and continues the heating refrigerant charging operation until a predetermined heating refrigerant charging completion condition is satisfied, in charging the refrigerant to the refrigerant circuit (10). Then the control portion (8) switches the operation to a cooling refrigerant charging operation executed while keeping the refrigerant circuit (10) in a cooling cycle state, and continues the cooling refrigerant charging operation until a refrigerant charging completion condition to charge a predetermined amount of refrigerant to the refrigerant circuit (10) is satisfied.SELECTED DRAWING: Figure 5
Inventors:
OURA RYUTA
MINAMI JUNYA
MINAMI JUNYA
Application Number:
JP2015250317A
Publication Date:
June 29, 2017
Filing Date:
December 22, 2015
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F25B45/00; F25B5/02; F25B41/04
Domestic Patent References:
| JP2011012958A | 2011-01-20 | |||
| JP2011117619A | 2011-06-16 | |||
| JP2010002109A | 2010-01-07 |
Foreign References:
| US20090235675A1 | 2009-09-24 |
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation