Patent ID: 11927355
Assignee: DAIKIN INDUSTRIES, LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  G | IPC F

Claim 0:
1. An air conditioning and ventilating system comprising:
an air conditioning device including a compressor and a heat exchanger configured to generate conditioned air by heat exchange with a refrigerant;
a ventilation device communicatively connected to the air conditioning device and including a supply air fan or an exhaust fan, the ventilation device configured to supply outside air to a room and to exhaust air in the room to outside the room;
an airflow volume detector configured to detect an airflow volume equivalent value of the ventilation device;
a display configured to issue an alarm based on the detected airflow volume equivalent value; and
a controller comprising a processor,
wherein on determination that the airflow volume equivalent value acquired from the airflow volume detector is equal to or less than a first predetermined value, the processor of the controller sets an operation of the air conditioning device to a stop state by stopping the compressor,
the first predetermined value is an airflow volume equivalent value corresponding to a ventilation amount required to take safety measures against refrigerant leakage by ventilation, and
the processor of the controller causes the display to issue the alarm on determination that the detected airflow volume equivalent value is greater than the first predetermined value and equal to or less than a second predetermined value greater than the first predetermined value.