GMV5 D.C INVERTER MULTI VRF                                                                                              SERVICE MANUAL 
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1.3.3 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: 
Users can select corresponding functions by pressing "SW1 (UP)" or "SW2 (DOWN)" on the master 
unit, including: 
After selecting the functions to be set, press "SW7" to confirm entering function settings. The master 
unit is displayed as follows: 
Then go to step 4 to set corresponding functions. 
Step 4: Set function parameters. 
Setting methods of function parameters are as follows: 
(1) A7 Outdoor silent mode settings 
Step 1: Confirm entering the A7 outdoor silent mode settings. The master unit is displayed as 
follows: