12 _ Ceiling Concealed Duct(High Static)
Indoor Units
5. Wiring Diagrams
B8 Chassis
 
CONNECTOR NUMBER 
LOCATION POINT                          FUNCTION
 CN-POWER                      AC Power supply                     AC Power line input for indoor controller
 
CN-MOTOR1, CN-MOTOR2
       Fan motor output                     Motor output of BLDC
  CN-D/PUMP                     Drain pump output                   AC Output for drain pump
  CN-COM                           Communication                       Connection between indoor and outdoor
  CN-EEV                            EEV Output                             EEV Control output
  CN-FLOAT                        Float switch input                     Float switch sensing
  CN-PIPE/IN                       Suction pipe sensor                 Pipe in thermistor
  CN-PIPE/OUT                   Discharge pipe sensor             Pipe out thermistor
  CN-ROOM                        Room sensor                           Room thermistor
  CN-REMO                         Remote controller                    Remote control line
  CN-CC                              Dry contact                              Dry contact line
  CN-DISPLAY                    RF Remocon                           RF Remocon receiver
  CN-OPTION                      Option PCB                             Option PCB connector
  CN-ZONE                         Zone controller                        Zone controller line
   CN-EXT                               External On/Off                          External On/Off signal input
For Multi V Models, DIP switch 1, 2, 6, 8 must be set OFF.
Function Description Setting Off Setting On
Default
SW1
Communication
N/A (Default) - - Off
SW2
Cycle
N/A (Default) - - Off
SW3
Group Control
Selection of Master or Slave
Master Slave Off
SW4
Dry Contact Mode
Selection of Dry Contact Mode
Wired/Wireless remote controller selec-
tion of Manual or Auto operation Mode
Auto Off
SW5
Installation
Fan continuous operation
Continuous operation Removal - Off
SW6
Heater linkage
N/A - - Off
SW7
Ventilator linkage
Selection of Ventilator linkage
Linkage Removal Working
Off
Vane selection (Console)
Selection of up/down side Vane
Up side + Down side Vane
Up side Vane Only
Region selection
Selection tropical region General model Tropical model
SW8
Etc.
Spare - - Off