Samsung MCU-Y6NEE Installation Manual page 20

Wiring works
Setting address and option
PCB Layout
Turn off the DIP switch on the MCU PCB when pipe is not connected.

Rotary switch for indoor unit ADDRESS
Setting MCU address
Set the rotary switch of the indoor unit ADDRESS on the MCU PCB same as the ADDRESS of connected indoor unit.

When installing more than 2 MCU, set each rotary switch for MCU ADDRESS properly.

MCU ADDRESS
Connecting indoor with Y-Connector to MCU
In case of connecting one indoor with Y-Connector to MCU, set the MCU address same about connected two indoors and set

MCU DIP S/W using two indoors.
20
DIP switch for indoor unit setting (ON:Use, OFF:Not use)
Outdoor Unit PCB
Setting the
number of
Indoor Unit
MCU PCB
MCU DIP S/W
Indoor Unit ADDRESS
Indoor Unit
Y-connector installation
Indoor #1
Indoor #2
Rotary switch for MCU ADDRESS
Setting the
number of
MCU
MCU PCB
MCU ADDRESS MCU DIP S/W
Indoor Unit ADDRESS
Indoor Unit
MCU PCB
MCU DIP S/W
Indoor Unit ADDRESS