V5 X VRF 50/60Hz       
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Midea V5 X Series Service Manual 
1.2.3 Addressing mode setting 
The V5 X supports two addressing modes, auto addressing and manual addressing: 
  If an indoor centralized controller (CCM03, CCM09 or CCM30) is connected directly to the master outdoor unit’s X Y E 
terminals, the master unit must be set to auto addressing mode. If the installation situation requires that the indoor 
unit  addresses  are set manually,  first set the  master  unit to manual addressing  mode  then  use  a  remote  or wired 
controller to set the indoor units’ addresses one by one, and then change the master unit to auto addressing mode. 
(Changing to auto addressing mode will not affect indoor unit addresses that have already been set manually). 
Figure 4-1.4: Indoor centralized controller connected to master outdoor unit   
 
  If an indoor centralized controller (CCM03, CCM09 or CCM30) is connected to the indoor units through X Y E terminals, 
the master unit can be set to auto addressing mode or manual addressing mode. 
Figure 4-1.5: Indoor centralized controller connected to indoor units