Samsung ACH1800E Technical Manual page 50

Controlling a Group
3-11. Controlling a Group
* You should adjust the option switches in the electrical component box or on the PCB of the wired remote controller.
* Before setting up the option switches, always make sure that you have turned off the main power.
* After adjusting the options, you should supply the power. Otherwise, the options will not be applied.
❑ With Wired Remote Controller
Œ
Connect the R1, R2 and R3 terminals in the wired remote controller to the
R1, R2 and R3 terminals in any indoor unit "A" each.
´
Connect the R1 and R3 terminals in the indoor unit "A" to the R1 and R3
terminals in another indoor unit "B".
CAUTION
When connecting the cables, you must keep these :
• The R1 terminals must be connected to the R1s.
• The R3 terminals must be connected to the R3s.
• Do not connect the R2 terminals to anywhere.
If you connect R2 terminals, the PCB will be damaged.
ˇ
Connect the R1 and R3 terminals of "B" to any indoor unit "C" and connect
the others as the same way.
¨
Adjust the rotary digital switch in the main PCB to the desired position
referring to the table below.
Number of
Switch No.
indoor unit(s)
0 One
1 Two
2 Three
3 Four
4 Five
5 Six
6 Seven
7 Eight
ˆ
Remove the CN20 connectors on the sub PCBs except the unit connected
with remote controller(Address 0).
Ø
Adjust the DIP switch No. 2 in the wired remote controller to "ON" position.
You cannot install the centralized controller when the wired remote
Note
controller for a group has already been installed.
Number of
Switch No.
indoor unit(s)
8 Nine
9 Ten
A Eleven
B Twelve
C Thirteen
D Fourteen
E Fifteen
F Sixteen
INSTALLATION
Unit A
Unit B
Unit C
CN20 Connector
SAMSUNG | 49
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