Gree GMV5 Series Service Manual page 112

17_Commiss
ioning
completion
status
01-04
Note: In commissioning status, press and hold "SW3" and "SW4" simultaneously for more than
five seconds to enter the no-wired-controller commissioning mode. In this mode, the system
does not detect the communication status between the wired controller and IDU.
3.2 Commissioning Operation Mode
The GMV5 VRF provides two commissioning methods. One is to perform commissioning through the
main board of ODU. The other is to perform commissioning on a PC through professional software.
Parameters of the ODU and IDU can be simultaneously displayed and historical data can be stored and
queried with the second method. (For details about these methods, refer to respective instructions.)
3.2.1 Commissioning Through the Main Board of ODU
When unit commissioning is performed through the main board of ODU, the main board provides
the following commissioning operation functions:
Step 1: Completely cover the front panel of ODU and open commissioning windows of all basic
modules.
Step 2: In power-off status of ODU, set the ODU to a corresponding static pressure mode according to
static pressure design requirements for outdoor engineering. For details about the setting method, see
the "Outdoor Fan Static Pressure Setting DIP Switch (SA6_ESP_S)" section. If there are not static
pressure requirements, retain the factory settings.
Step 3: In power-off status of ODU, set one module of ODU to master unit and other modules to
sub-modules. For details about the setting method, see the "Master Unit Setting DIP Switch
(SA8_MASTER-S)" section.
Step 4: If centralized control is required, set the centralized control address in power-off status of ODU.
For details about the setting method, see the "Centralized Control Address DIP Switch (SA2_Addr-CC)"
section. If centralized control is not required, retain the factory settings.
Step 5: Power on all outdoor and IDUs. If LED3 displays ―A0‖ on main boards of all modules of ODU and
the wired controller of each IDU displays ―A0‖, it indicates that the unit is in non-commissioning status.
GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
On OF On OF On
109
seconds later), and "U8"
(two seconds later).
The unit has completed
commissioning and in
standby status. LED1
displays the module
address; LED2 and
LED3 display "OF".