| 摘要 |
PROBLEM TO BE SOLVED: To permit a proper cycle regardless of the differences in the magnitude of load to indoor units, the internal capacity of individual indoor units, etc., in a simple constitution, and to obtain the proper distribution quantity and discharge air temperature to a plurality of indoor units. SOLUTION: The discharge air temperature of an indoor unit is detected by a thermistor provided at the discharge opening of the heat exchanger of the indoor unit for feedback control, and thereby the number of revolution of a compressor and those of indoor and outdoor fans, and the throttling amount of a motor-operated expansion valve are changed to make the cycle proper. Moreover, refrigerant can be distributed properly by detecting the discharge air temperature of the indoor unit. Thereby, the proper cycle is permitted regardless of the differences in the amount of load to the indoor units, the internal capacity of the individual indoor units, etc., in a simple constitution, and the proper distribution quantity and discharge air temperature to a plurality of indoor units are obtained.
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