GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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Note:
In commissioning status, press and hold "SW4" and "SW5" 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.
3.3.3.2 Commissioning Operation Mode
The VRF provides three commissioning methods.
①
Commissioning through the main board of ODU
②
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
Commissioning through the Portable Commissioning Tool
（
For details about these methods, refer
to respective instructions
）
3.3.3.2.1 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
