| 摘要 |
<p>Disclosed is an air-conditioning apparatus that includes a plurality of intermediate heat exchangers performing the same function (as a condenser or an evaporator) and allows each intermediate heat exchanger 31 to exchange heat between a refrigerant heated or cooled in a refrigeration cycle on a heat source side and a heat medium flowing through a heat medium circuit on a use side such that heat energy produced on the heat source side is transmitted to use side heat exchangers 35. A controller 202 calculates the difference between a heat medium inlet temperature Twi and a heat medium outlet temperature Two of the use side heat exchanger 35 which is operating to obtain a heat medium temperature difference ”Tw for the use side heat exchanger 35, and controls a heat medium flow control device 45 such that the heat medium temperature difference ”Tw reaches a target heat medium temperature difference ”Twm. When the heat medium inlet temperature Twi deviates from a predetermined range, the controller 202 changes the target heat medium temperature difference ”Twm and controls the heat medium flow control device 45 for at least one of the use side heat exchangers 35 in operation.</p> |
