Specifications

EDUS391000-C Control Devices
Controls 35
2.4.8 Setting of Central Remote Controller (Be sure to set 1 ~ 3 before electrical power is
supplied.)
1. Connector for setting "Main" for control (Connector is provided when shipped from factory)
 When only one central remote controller is used, never remove the connector for setting "Main" for control.
 When plural central remote controller is used or central remote controller is used with other central controllers, the
setting should be made according to the following table.
(However, be sure to remove the connector when the Parallel interface or Data station is used.)
2. Control range setting switch (SS3)
 This setting is required when up to 128 groups of indoor units are controlled by two central remote controller.
3. Main/Sub changeover switch (Setting is required for central control from 2 locations)
 This is required when you have a central control of the same indoor unit(s) from different places by using 2~4 central
remote controllers.
Either (1) or (2) of the central control equipment should be set for Main and the other one for Sub.
Pattern of central control equipment connection. Connector for setting Main for control (Presence of connector)
Central remote
controller
Unified ON/OFF
controller
Schedule timer
Central remote
controller
Unified ON/OFF
controller
Schedule timer
1~4 units
——
Use for 1 unit only.
Not use for other
units.
——
1~16 units
—
Not used for all unit.
—
1 unit Not used.
— 1 unit — Not used.