GREE                                                                        GMV5E DC INVERTER VRF UNITS SERVICE MANUAL 
    85   
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: 
Step 2: Select a corresponding silent mode by pressing "SW1 (UP)" or "SW2 (DOWN)". 
Step 3: Press "SW7" to confirm selecting the mode. The master unit is displayed as follows: 
On the master unit, press "SW6" to return to the upper level (press "SW6" in setting status to return 
to the upper level; press "SW6" after settings are completed to restore the normal operating status of the