To provide an operation control technology for increasing an operation rate of a pump cycle in an air conditioner capable of changing-over a compression cycle and the pump cycle.
When a compression cycle is selected in a basic flow (S200), it is determined whether or not a present temperature environment corresponds to a prescribed water spray pump cycle operation transfer condition in order to increase a pump cycle operation rate (S201). More practically, it is determined whether or not a temperature difference ΔT'(=Tr-To') between an indoor temperature Tr and an outdoor wet bulb temperature To' is more than a threshold ΔTx ((ΔT'≥ΔTx). When the condition is not adapted (N at the step S201), a compression cycle operation is continued. When the condition is adapted (Y at S201), the operation is transferred to the water spray pump cycle operation.
YOSHII TAMOTSU
TSUKIMOTO HIDEKI
SEKIGUCHI KEISUKE
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