Air-conditioning system controlling evaporating temperatures of indoor units and ventilator

An air-conditioning system comprising:

• a refrigerant system in which an outdoor unit, a first indoor unit, a second indoor unit, and a ventilator each have a refrigerant pipe in which refrigerant circulates;
• and
• a controller configured to control the refrigerant system,
• wherein the refrigerant system includes a compressor, an outdoor heat exchanger, a first expansion valve, a first indoor heat exchanger, a second indoor heat exchanger, a second expansion valve, and a ventilator cooler,
• wherein the outdoor unit includes the compressor, and the outdoor heat exchanger,
• wherein the first indoor unit includes the first indoor heat exchanger,
• wherein the second indoor unit includes the second indoor heat exchanger,
• wherein the ventilator includes the ventilator cooler,
• wherein the first indoor unit is provided with a first temperature and humidity detector, the second indoor unit is provided with a second temperature and humidity detector, and the ventilator is provided with a third temperature and humidity detector,
• wherein the first, second, and third temperature and humidity detectors are each configured to detect a temperature and a humidity of air in an air-conditioned space and output a detection value indicative thereof, and
• wherein the controller includes
• a target temperature adjustment circuit configured to identify either the first indoor unit or the second indoor unit as satisfying a specific criterion, which identifies the first indoor unit or the second indoor unit as being located at a place with a high air-conditioning priority corresponding to a magnitude of effect on comfort, and to adjust a target evaporating temperature based on the detection value detected by the temperature and humidity detector provided to the identified first indoor unit or the second indoor unit, wherein the target temperature adjustment circuit does not use the detection value detected by the temperature and humidity detector provided to the other of the first indoor unit or the second indoor unit identified as not satisfying the specific criterion to adjust the target evaporating temperature, and
• an air-conditioning control circuit configured to control an evaporating temperature of the first indoor unit and an evaporating temperature of the second indoor unit are both set to be equal to the target evaporating temperature adjusted by the target temperature adjustment circuit.