| 摘要 |
<p>An air-conditioning device for rooms with heat producing electronic data-processing installations includes firstly an air-conditioning unit, through which air can be extracted from the room (30) and fed back into the room (30) after having been cooled. Said air-conditioning unit operates at high outdoor temperatures. A heat-exchanger (50) is provided in addition to the air-conditioning unit; said heat-exchanger (50) establishes a heat-exchanging contact between the outer air, which is aspirated through an intake conduit (18), and the air which is extracted from the room (30) and fed back into the room (30) after heat-exchange with the outer air. Means for increasing the temperature (58) are provided in the intake conduit (18), which maintain the temperature of the outer air taken in above the dew point. Said temperature increasing means (58) consist of an admixture unit, by means of which part of the air from the outlet conduit (56) of the heat-exchanger (50), which is preheated by heat-exchange with the air extracted from the room (30), can be mixed with the outer air aspirated into the heat exchanger (50).</p> |
