Air conditioner

Abstract

The invention provides an air conditioner, such as on the refrigerating operation on summer, after respectively cooling return air and outside air to make the temperature of return air higer than the ouside air, the return air and outside air is mixed to apply air to indoor to omit reheating, and the operation cost can be reduced, in addition, because it is unnecessary flow through reheated warm water, a two tubular type of heat source water loop for only flowing through cool water is formed, therefore the device cost is reduced. The said air conditioner is provided with return air treatment coil (1) for exchanging the return air, a first outside air treatment coil (2) for heat exchanging the outside air and a second outside air treatment coil (9), a blower for applying air to indoor after the return air and outside air respectively sujected to heat exchange.

Description

technical field [0001] The present invention relates to an air conditioner that mixes return air and outdoor air to supply air to a room. Background technique [0002] A conventional air conditioner (or air conditioner) of the so-called outdoor air hybrid type that mixes outdoor air and return air mixes outdoor air from the outside with return air from the room, and then mixes the mixed air (hereinafter referred to as air conditioning). Mixed gas) cooling, dehumidification, heating, etc. For example, in cooling operation in summer, air-fuel mixture is temporarily dehumidified by supercooling, reheated (reheated) to control humidity, and air is supplied into the room (for example, refer to Patent Document 1). [0003] However, in this type of air conditioner, since the air mixture is cooled and reheated, it is not only necessary to cool and reheat both the outdoor air and the return air constituting the air mixture, but also to flow through the air as air for cooling and reh...

AI Technical Summary

Problems solved by technology

[0007] However, in the air-conditioning apparatus of Patent Document 1, the above-mentioned problems of high equipment cost and high running cost cannot be solved.

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