• 16 groups of indoor units can be controlled.
• Collective control and individual group (unit) control can also
  be performed.
• Up to 8 ON/OFF controller (4 main, 4 sub) can be installed in
  one link system.
• The operation status can be determined immediately.
  

Note: As operation mode and temperature settings are not possible with the ON/OFF controller, it must be used together with a remote controller, a system controller etc.