GREE U-Match 5 SERIES UNIT SERVICE MANUAL
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XK117 wired controller entry method: Under off state of the unit, press Function and Timer buttons at the
same time for 5s to go to the debugging menu. Press Mode button to adjust the setting items and press ▲ or ▼
button to set the actual value.
XE71-42/G wired controller entry debugging function method: In the main interface, press the button of
MENU/OK and “▼” at the same time for 5s, enter into the system function page. Press “˄” or “˅” buttons to select
the item of DEBUG SET, and press MENU/OK to go into DEBUG SET page. In DEBUG SET page, press “˄” or
“˅”buttons to select item
，
press “˂” or “˃” button to select the setting options shown as above, press MENU/OK to
confirm and save the settings.
2.3.10 Setting of master and slave wired controller
Under off state of the unit, press Swing/Enter and Mode buttons at the same time for 5s to set master and
slave wired controller. Then press ▲ or ▼ button to adjust the value, 01 stands for the master wired controller
and 02 stands for the slave wired controller. After finishing setting, press Swing/Enter button to save.
2.3.11 Connect to Interface of Centralized Controller
The indoor unit is with the interface of centralized controller. When centralized controller is connected,
centralized controller of unit can be realized when the wired controller is not connected.
(1) Interface instruction:
1) The printing of interface on the indoor unit PCB is COM_BMS, before connecting the centralized
controller, a gateway model ME50-00/EG(M) is required. The following figure shows an example.
2) Electrical characteristic: none.
3) Working principle: centralized controller the communication of indoor mainboard and realize the unit
control.
(2) Function instructions:
In order to achieve this function, set the address mode and address through wired controller. Please refer to
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