Gree GUHD09NK3FO Service Manual page 46

When the address is set, the wired controller can be removed and connect the centralized controller to the
indoor mainboard. Then connect the required units to realize centralized control of these units;
Note:
When centralized controller is to be connected, set the address mode into centralized controller address
mode through wired controller. Long-distance control address mode can not be set;
The unit addresses in the same network must be different, otherwise, communication malfunction will occur
and the unit can not work normally;
When centralized controller is to be connected, the unit address range is 1-16. Only 16 sets of unit in
maximum can be connected
The code and model of wired controller is as below:
Name
Centralized controller CE50-24/E
7.2.5 Light board control:
Light board interface is reserved on the mainboard of duct type unit. You can purchase Gree light board to
realize control of the unit. When wired control is also connected, you can realize control of the unit through light
board and wired controller.
Light board information:
Name
Receiving board Z6L
There are two buttons on the light board to control ON/OFF of cooling and heating. There are also other
indicators and nixie tube display.
Cooling: set temperature 26°, low fan speed; heating: set temperature 20°, low fan speed
Function instructions: under OFF state, pressing Cool/Heat button can turn on cooling/heating mode.
Under unit ON state, pressing Cool/Heat button can turn off the unit. When the unit is in cooling/heating mode,
Figure 2-7-13
Product code
MC207025
Product code
30260000001
U-Match Series DC
Inverter Service Manual
Remark
Only 16 sets of unit in maximum can
be connected to this controller
Remark
Only for duct type unit
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