GREE                                                                                          GMV5 INDOOR UNIT SERVICE MANUAL   
 
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5.5 Engineering Application Functions Operated through the 
YAP1F Remote Controller 
The YAP1F remote controller only provides engineering application functions for setting the master 
IDU. For other user operation functions, refer to the “Remote Controller Operating Instructions”. 
The method for setting the master IDU through the YAP1F remote controller is as follows: 
   
Turn on or turn off the unit 
Switch temperature displaying type on the unit’s display 
Set health function and air function 
Set left&right swing status 
(For details about the above figures, refer to the instructions 66174100016.) 
Perform settings by pressing “▲” and “▼” in air supply mode: 
①  Set the temperature to 30°C. 
②  Press “▼” and then “▲” in five seconds. Repeat this operation for three times. 
③  After  successful  settings,  “UC”  is  displayed  on  the  receiving  indicator  panel  of  the  remote 
controller for five seconds and”MASTER” is displayed on the wired controller.