GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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on the master unit to confirm. The main board is displayed as follows and the unit automatically enters
commissioning step 04.
03_Module quantity
confirmation
If the displayed quantity is inconsistent with the number of actually connected modules, check
whether communication cables are correctly connected between modules in power-off status. Then
perform commissioning again.
Note:
It is very important to correctly confirm the number of ODUs. If the confirmed quantity is
inconsistent with the actual quantity, the system may improperly run.
Step 9: When the unit runs to step 04, users need to manually confirm the number of indoor
modules. The main board of each module is displayed as follows:
04_Indoor unit quantity
confirmation
If the displayed quantity is consistent with the number of actually connected modules, press "SW7"
on the master unit to confirm. The main board is displayed as follows and the unit automatically enters
the next commissioning step.
04_Indoor unit quantity
confirmation
Note:
It is very important to correctly confirm the number of IDUs. If the confirmed quantity is
inconsistent with the actual quantity, the system may improperly run.
Step 10: Unit commissioning step 05 is internal communication detection.
If no exception is detected, the main board is displayed as follows and the unit automatically enters
the next commissioning step.
05_Internal
communication
detection
The system completes
detection and automatically
enters the next step.
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