Gree GMV-N07G/A3A-D(U), Service Manual

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Multi Variable Air Conditioners Indoor Unit for North America
45
NOTICE!
After the master IDU is successfully set, stick the ―
MASTER
‖ flag to the wired controller or unit
panel for convenience of user operation and engineering maintenance. This flag is placed in the
package bag of the ODU.
4.1.3 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
1) Project number query of IDUs in one-to-man
y 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.
NOTICE! 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.
2) 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
Press and hold the
―FUNCTION‖ button for five seconds in power-on or power-off status to enter the
parameter query interface ―C00‖. Continuously press the ―MODE‖ button for three times, and then press
and hold the ―FUNCTION‖ button for five seconds to enter the engineering parameter setting interface.
The temperature area displays ―P00‖. Press "
▽
" to switch to ―P42‖.
Single IDU: Press the ―MODE‖ button. The project number blinks in the timer area. Press ―
△
‖ or ―
▽
‖
to adjust the project number, and then Press the ―ENTER‖ button to confirm and return to the upper-level
menu.
One-to-
many: Press the ―MODE‖ button to enter the IDU selection menu. Press ―
△
‖ or ―
▽
‖ to switch
IDUs. Press the ―MODE‖ button to set the project number of the current IDU in the same method as
above.