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Air conditioner

Inactive Publication Date: 2009-04-23
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]An object of the present invention is to minimize the labor of inputting information on a refrigerant communication pipe before operating a separate type air conditioner, and at the same time, to enable a highly accurate judgment of the adequacy of the refrigerant quantity in a refrigerant circuit.
[0026]In this air conditioner, the pipe volume calculating means can calculate the volume of the refrigerant communication pipe, so that even when the volume of the refrigerant communication pipe is unknown, it is possible to calculate the refrigerant quantity in the refrigerant circuit in the refrigerant leak detection operation using the volume of the refrigerant communication pipe calculated by the pipe volume calculating means. Accordingly, it is possible to determine, with high accuracy, whether or not there is a refrigerant leak from the refrigerant circuit while minimizing the labor of inputting information on the refrigerant communication pipe.

Problems solved by technology

However, the above described work to input information on the refrigerant communication pipe is extremely laborious work.
In addition, there is a problem that an input error easily occurs.

Method used

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Examples

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Embodiment Construction

[0040]In the following, an embodiment of an air conditioner according to the present invention is described based on the drawings.

(1) Configuration of the Air Conditioner

[0041]FIG. 1 is a schematic configuration view of an air conditioner 1 according to an embodiment of the present invention. The air conditioner 1 is a device that is used to cool and heat a room in a building and the like by performing a vapor compression-type refrigeration cycle operation. The air conditioner 1 mainly includes one outdoor unit 2 as a heat source unit, indoor units 4 and 5 as a plurality (two in the present embodiment) of utilization units connected in parallel thereto, and a liquid refrigerant communication pipe 6 and a gas refrigerant communication pipe 7 as refrigerant communication pipes which interconnect the outdoor unit 2 and the indoor units 4 and 5. In other words, the vapor compression-type refrigerant circuit 10 of the air conditioner 1 in the present embodiment is configured by the inter...

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PUM

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Abstract

An air conditioner includes a pipe volume calculating section and a refrigerant circuit configured by the interconnection of a heat source unit and a utilization unit via a refrigerant communication pipe. The pipe volume calculating section calculates the volume of the refrigerant communication pipe based on an additional charging quantity which is a refrigerant quantity to be additionally charged after the refrigerant circuit is configured by interconnecting the heat source unit and the utilization unit via the refrigerant communication pipe.

Description

TECHNICAL FIELD[0001]The present invention relates to a function to judge the adequacy of the refrigerant quantity in a refrigerant circuit of an air conditioner. More specifically, the present invention relates to a function to judge the adequacy of the refrigerant quantity in a refrigerant circuit of an air conditioner configured by the interconnection of a heat source unit and a utilization unit via a refrigerant communication pipe.BACKGROUND ART[0002]Conventionally, in a separate type air conditioner configured by the interconnection of a heat source unit and a utilization unit via a refrigerant communication pipe, information on the length and the like of the refrigerant communication pipe is input in order to accurately judge the excess or deficiency of the refrigerant quantity in a refrigerant circuit (for example, see Patent Document 1).[0003]<Patent Document 1>[0004]JP-A Publication No. H8-200905DISCLOSURE OF THE INVENTION[0005]However, the above described work to inp...

Claims

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Application Information

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IPC IPC(8): F25B45/00
CPCF25B13/00F25B45/00F25B49/005F25B2313/0233F25B2700/04F25B2500/01F25B2500/19F25B2600/21F25B2313/02741F25B49/02
Inventor NISHIMURA, TADAFUMIKASAHARA, SHINICHIYAMAGUCHI, TAKAHIRO
Owner DAIKIN IND LTD
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