Patent ID: 7340909

Claim:
A central control system for multi-type air conditioners, comprising: multi-type air conditioners comprising a large number of indoor devices for air conditioning disposed in respective rooms and a small number of outdoor devices shared between the indoor devices for controlling coolant flow; at least one remote control device for transmitting a control command signal over an external network to monitor a state of each air conditioner or control an operation of each air conditioner inputted on a driven web browser, and outputting a result of the control received from each air conditioner; and a central controller for transmitting a control graphic user interface (GUI) program provided therein to the remote control device over the external network so that an integrated control operation for respective air conditioners can be carried out, and for adjusting a transmission time of the control command signal received from the remote control device and transmitting the control command signal to a corresponding air conditioner over an internal network according to a result of the adjustment.