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Electrical Wiring
(B) Definition and description of SW03
SW03_1-8 is used to set indoor unit address on system. Set address only if using central controller YCZ-A004. Leave
default if no central controller is used.
Address setting
SW03_1
mode
Code-set indoor
SW03_2
unit address
~
and centralized
SW03_8
controller address
Note:
• Set the address by code when connecting the centralized controller, gateway or control system.
• Address of centralized controller = communication address + 0 or +64.
SW03_ 2=OFF, address of centralized controller = communication address + 0 = communication address
SW03_ 2=ON, address of centralized controller = communication address + 64 (applies when centralized controller is
used and there are more than 64 indoor units)
0
Automatic address setting or wired controller address setting (default)
1
2
3
4
5
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
...
...
...
...
...
0
1
1
1
1
1
0
0
0
0
1
0
0
0
0
1
0
0
0
0
...
...
...
...
...
1
1
1
1
1
Code-set address
7
8
Address of indoor unit
0
0
0# (Default)
0
1
1#
1
0
2#
...
...
...
1
1
63#
0
0
0#
0
1
1#
1
0
2#
...
...
...
1
1
63#
15
Address of centralized
controller
0# (Default)
1#
2#
...
63#
64#
65#
66#
...
127#
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