| 摘要 |
PURPOSE:To obtain a multiroom type air-conditioning system wherein a dehumidifying operation is effected without lowering an indoor air temperature at the time when the dehumidifying operation is executed at a low outdoor air temperature. CONSTITUTION:Inside an outdoor unit 101, motor operated expansion valves 106a and 106b are provided between liquid pipings 110a and 110b and an outdoor heat exchanger 103 respectively. Inside indoor units 107a and 107b, first indoor heat exchangers 2a and 2b and second indoor heat exchangers 3a and 3b are provided respectively and pressure reducing mechanisms 4a and 4b and indoor solenoid operated valves 8a and 8b are provided in parallel between the first indoor heat exchangers 2a and 2b and the second indoor heat exchangers 3a and 3b respectively. By making the first indoor heat exchangers 2a and 2b function as condensers at the time of a dehumidifying operation, execution of the dehumidifying operation not lowering an indoor air temperature is enabled. |
