| 摘要 |
In order to provide an air conditioning/hot water supply system having multiple heat sources, having a cascade refrigeration cycle formed therein, and capable of suitably recovering a coolant from an unused heat exchanger and utilizing same in a heat exchanger being used, and in order to provide a control system for the air conditioning/hot water supply system, the air conditioning/hot water supply system executes at least one of either an air conditioning coolant recovery operation which cuts off the inflow of an air conditioning coolant to an intermediate heat exchanger (23) and an air conditioning heat source-side heat exchanger (24) and recovers the air conditioning coolant using an air conditioning compressor (21), or a hot water supply coolant recovery operation which cuts off the inflow of a hot water supply coolant to the intermediate heat exchanger (23) and a hot water supply heat source-side heat exchanger (44) and recovers the hot water supply coolant using a hot water supply compressor (41), when switching between a first operation in a first state wherein the intermediate heat exchanger (23) is unused and the air conditioning heat source-side heat exchanger (24) and the hot water supply heat source-side heat exchanger (44) are used, and a second operation in a second state wherein the air conditioning heat source-side heat exchanger (24) and the hot water supply heat source-side heat exchanger (44) are unused and the intermediate heat exchanger (23) is used.
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