Gree GMV-ND100L/A-T Service Manual page 65

GREE
parameter setting interface.
Step 3: Press "▲" or "▼" to switch level 2 parameter codes till "P10" is displayed on the temperature
area.
Step 4: Press the "MODE" button to set the parameter to "01" and then Press the "ENTER" button.
If the setting is successful, "MASTER" on the wired controller will be on.
Master IDU Display
① For IDUs connected with wired controllers, "MASTER" on the wired controller connected with
the master IDU will be on.
② For IDUs embedded or connected with LED panels, the operation LED on the LED panel of the
master IDU will blink three times.
Note: After the master IDU is successfully set, stick the "
for convenience of user operation and engineering maintenance. This flag is placed in the package bag
of the ODU.
5.1.2 Project number Query and Settings
(1) Project number query of a single IDU
Press and hold the "FUNCTION" button for five seconds in power-on or power-off status to enter the
parameter query interface "C00". The timer area of the wired controller displays the project number of the
current IDU. Synchronously, the double-eight digital LED of the IDU embedded or connected with an LED
panel displays its own project number. If the current wired controller works in one-to-many mode, the
timer area displays the IDU that has the minimum project number.
(2) Project number of multiple IDUs
Project number query of IDUs in one-to-many mode: Press and hold the "FUNCTION" button for five
seconds in power-on or power-off status to enter the parameter query interface "C00". Press "▽" to switch
to "C01". Press the "MODE" button to enter query. The timer area displays the project numberes of IDUs
from small to large. Press "△" or "▽" to switch project numberes. Synchronously, the double-eight digital
LED of the IDU embedded or connected with an LED panel displays its own project number.
Note: It is normal if the buzzer of the IDU operated by the wired controller rings. The purpose of ringing
the buzzer is to facilitate engineering commissioning personnel to locate the IDU, especially for the IDU
without any LED panel because it cannot display its project number.
Project number query of IDUs in the entire communication network: Press and hold the "FUNCTION"
button for five seconds in power-on or power-off status to enter the parameter query interface "C00".
Press "▽" to switch to "C18". Press the "MODE" button to enter query. The timer area of each wired
controller in the entire network displays the project number of the corresponding IDU. Synchronously, the
double-eight digital LED of each IDU embedded or connected with an LED panel displays its own project
number.
Method for quitting query:
 Quit the "C18" query interface.
 Press the "ON/OFF" button on any wired controller in the network.
(3) Project number settings of IDU
GMV5 INDOOR UNIT SERVICE MANUAL
" flag to the wired controller or unit panel
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