| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat medium circulation system which can be applied to an air conditioner and the like requiring high reliability and the power consumption of which can be reduced.SOLUTION: A target cold water temperature Two is determined within the range of an upper limit cold water temperature Th or less, and the upper limit cold water temperature Th is determined on the basis of a temperature of the air (diffused air) cooled by an indoor heat exchanger. For this reason, the cooling system is operated in such a manner that the cold water has the upper limit cold water temperature Th or a temperature near the upper limit cold water temperature Th, and as a result, power consumption can be reduced while keeping necessary cooling capacity.SELECTED DRAWING: Figure 4 |
