GMV5 D.C INVERTER MULTI VRF                                                                                              SERVICE MANUAL 
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The highest capacity output limitation is set when users require forcibly limiting the system power 
consumption. The setting scope is as follows: 
 
Note: The cooling or heating effect may fall off after the capacity limitation is set. 
8) n5 Indoor unit project number offset 
This function sets the IDU project number when multiple refrigerating systems are controlled in a 
centralized manner (by  using  a  remote monitor or centralized controller),  avoiding  the  same  project 
number between different systems. If the project number is not set, project number conflicts may occur 
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.