GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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between systems.
This function only needs to be set on the master system, which is the system with the centralized
control address SA2 DIP switch being “00000”. For details, see the "Centralized Control Address DIP
Switch (SA2_Addr-CC)" section.
(9) n6 Fault query
This function queries historical faults of the system. Up to five historical faults can be memorized in
time order.
(10) n7 Parameter query
This function queries operation parameters of each module of the ODU in real time.
(11) n8 Indoor unit address query
This function queries addresses of all IDUs through one operation of the ODU.
(12) n9 Online IDU quantity query
This function queries the number of online IDUs through the ODU.
2.2.3 Function Setting Operations
Step 1: Open the commissioning window of the master unit panel.
Step 2: Power on the entire unit.
Step 3: Press "SW3" on the master unit to enter the to-be-selected status of function settings. By
default, the master unit is displayed as follows:
After selecting the functions to be set, press "SW7" to confirm entering function settings. The master
unit is displayed as follows:
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