124 
4  REMOTE CONTROL RECEIVING SOUND OFF/ON MODE 
The Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressed 
continuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the Remote 
Control Receiving Sound Off/On Mode is in standby condition) and press “AC Reset” button at remote 
control. 
 
Press “Auto OFF/ON button” to toggle remote control receiving sound. 
o  Short “beep”: Turn OFF remote control receiving sound. 
o  Long “beep”: Turn ON remote control receiving sound. 
 
After Auto OFF/ON Button is pressed, the 20 seconds counter for Remote Control Receiving Sound OFF/ON 
Mode is restarted. 
17.2  Heat Only Operation 
17.2.1 How to Activate/Deactivate Heat only Operation 
  Use remote controller to set heating only operation. When the unit in standby mode, follow the steps below: 
a)  Press   continuously for more than 5 seconds to enter special setting mode. 
b)  Press   to choose function 61, and then press   or   to set “01”. (To enable the “Heat Only” mode) 
or “00” (To disable the “Heat Only” mode). 
c)  Press   to activate “Heating only operation” or deactivate “Heating only operation”. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SET
T   5secs
Special setting mode
(Function
no.)
(Options)
Activate or deactivate
“Heating only
operation”