LG ceiling cassette household central air conditioning The LG "Ceiling Cassette" model is primarily used in commercial environments, like restaurants, hotels, offices and meeting rooms. The model series has a compact design and is equipped with many special features. It has four louvers to circulate air in all directions, providing even large areas with an evenly conditioned atmosphere .Super slim design The interior air conditioner with the smallest and the most compact design in the world based on a three-dimensional CAD and CAE computer system has successfully reduced the space it occupies and enabled installation in various spaces.Group control 1,Basic Operation - Linking several units, one Group Control Unit can manage a number of indoor units. 2,Control Features - Through a data cable connected to each indoor unit, a group of units can be managed from the group controller. - The Group Control function is enabled by cutting an optional jump wire in the wiredremote control, which prevents data collision. - One Group Control Unit can control up to 16 indoor units.Timer-controlled OperationIf desired, you can set operation times for up to one week in advanceCentral controller(Accessory) 1,Basic Operation - Linking several units, one Central Control Unit can manage and turn off several units individually or as a group.2,Control Features - Each indoor unit is connected to a Central Control Unit via a data communication cable and can be operated or turned off individually or together with a group of units with the central controller. - The Central Control Unit can manage up to 8 * 16 indoor units.Child lock functionThis function prevents children or others from tampering with the control buttons on the unit. After enabling the child lock, the unit can still be controlled by the remote control. • All buttons on the indoor display panel will be locked. • The unit can only be controlled by the remote control unit. PLASMA Air Purifying System (Optional)