Patent ID: 11946658
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A ventilation and air conditioning system, comprising:
an outdoor air supply fan which supplies an outdoor air to an inside of a room;
an exhaust fan which exhausts the outdoor air from the inside of the room; and
a system controller which is communicatively connected to the outdoor air supply fan and the exhaust fan to control an operation of the outdoor air supply fan and an operation of the exhaust fan,
wherein the system controller includes:
a link controller which controls the outdoor air supply fan and the exhaust fan in a linked manner in order that a supply air volume of the outdoor air supply fan is set according to an exhaust air volume of the exhaust fan;
an exhaust air volume receiver which receives an exhaust air volume signal from the exhaust fan, the exhaust air volume signal indicating the exhaust air volume of the exhaust fan;
a disconnection determination unit which determines a disconnected state where the exhaust air volume receiver fails to receive the exhaust air volume signal; and
a disconnected state supply air controller which controls the outdoor air supply fan at a predetermined air volume when the disconnection determination unit determines the disconnected state.