Multi-air conditioner central control system

Disclosed herein is a multi-air conditioner central control system, which shares the physical network and control resources with a multi-air conditioner system so as to control a ventilation system in an integrated manner. The central control system comprises a multi-air conditioner system including one or more multi-air conditioners connected to a network for indoor air conditioning, a ventilation system including one or more ventilation devices connected to the network for ventilating indoor air by inhaling and exhausting the indoor air, and a central controller connected with the multi-air conditioner system and the ventilation system for monitoring, in real time, a state of each of the multi-air conditioners and the ventilation devices and controlling an operation thereof. Thus, each operation of the multi-air conditioning facilities installed throughout the building can be rapidly and efficiently controlled via the single central control system. Moreover, for central control of the ventilation system, there is no need to equip an additional network and controller. Consequently, system construction costs are minimized and system development time can be greatly reduced.