Mitsubishi Electric Air-conditioner Network SystemCentral ControllerModel: G-50AInstruction BookBefore using the controller, please read this Instruction Book carefully to ensure properoperation. Keep this manual for future reference.Contents1. Safety precautions ...................................................... 12. Product features ......................................................... 23. Functions .................................................................... 43-1 Specifications .................................................. 43-2 Display Screen ................................................ 84. User operation ......................................................... 104-1 Operation condition monitor ......................... 114-2 Operation setting .......................................... 124-2-1 Group operation setting ........................ 124-2-2 Collective operation setting .................. 164-3 Timer operation ............................................ 194-4 Malfunction ................................................... 234-5 Current time setting ...................................... 245. Initial setting ............................................................. 255-1 Shifting to initial setting menu ...................... 255-2 M-NET address setting ................................ 255-3 Function setting ............................................ 265-4 Group configuration setting .......................... 275-5 Interlocked operation setting ........................ 295-6 Group name setting ..................................... 315-7 User setting .................................................. 345-8 IP address setting ........................................ 355-9 Initial setting tools connection function ........ 356. Maintenance ............................................................ 366-1 Refrigerant system monitor .......................... 366-2 Malfunction log monitor ................................ 377. External input / output function ................................ 387-1 External input function ................................. 387-2 External output function ............................... 39Appendix 1: Initial setting (abridged) ............................. 40Appendix 2: User operation (abridged) ......................... 42G-50AON/OFFCENTRAL CONTROLLER