the currently displayed numeric code (if the numeric code is 0, the code to enter the engineer mode 
will be transmitted). 
•  In engineer mode, other keys or operations are invalid except for the On/Off key, the Up/Down key, 
the OK key or executing the operation to exit the engineer mode. 
Advanced Function Setting 
press  "On/Off"  for  2s  to  enter  the  Power  Down  Memory  Selector,  the 
code  displayed  is  “Ch”,  press  "OK"  to  send  the  Query  Power  Down 
Memory Selector code; press the Up/Down key to select 1 or 0 and press 
“OK”  to confirm, 1 indicates that the power down memory exists, and 0 
indicates that no power down memory exists; and press "On/Off" for 2s 
to exit. 
press "On/Off" for 2s to enter the Internal Fan Control Selector after the 
pre-set temperature is reaches, the code displayed is  “Ch”, press "OK" to 
send the Query Internal Fan Control Selector code; press the Up/Down 
key to select 1 to 11: 1 - Stop the fan, 2 - Min. air speed, 3 - Set the air 
speed, 4 - Termal running for 5min, 5 - Termal running for 10min, 6 - 
Termal  running  for  15min,  7  -  Termal  running  for  20min,  8  -  Termal 
running for 30min, 9 - Termal running for 40min, 10 - Termal running for 
50min and  11  -  Termal running  for  60min, press "OK"  to  confirm, and 
press "On/Off" for 2s to exit. 
press "On/Off" for 2s to enter the Mode Selector, press the Up/Down key 
to select CH (cool and heat, Auto + Cool + Dry + Heat + Fan), HH (Heat 
only, Heat only + Fan), CC (Cool only without Auto, Cool + Dry + Fan) or 
nU (Cool and Heat without Auto, Cool + Dry + Heat + Fan), press "OK" to 
confirm,  and  the  mode  selected  can  be  memorized  when  the  remote 
control is powered down and powered on; and press "On/Off" for 2s to 
exit. When the remote control does not burn any parameters, the mode 
setting will not be memorized. 
press  the  "On/Off"  for  2s  to  enter  the  Min.  Set  Temperature  Selector, 
press the Up/Down key to select "16°C~24°C", press "OK" to confirm, and 
the Min. Set Temperature can be memorized when the remote control is 
powered on and power lost; and press "On/Off" for 2s to exit. When the 
remote control does not burn any parameters, the min. set temperature 
will not be memorized. 
press "On/Off" for 2s to enter the Max. Set Temperature Selector, press 
the Up/Down key to select "25°C~30°C", press "OK" to confirm, and the 
Max.  Set  Temperature  can  be  memorized  when  the  remote  control  is 
powered on and power lost; and press "On/Off" for 2s to exit. When the 
remote control does not burn any parameters, the max. set temperature 
will not be memorized. 
Compressor Target 
Frequency FT 
press  "On/Off"  for  2s  to  enter  the  Multi-split  Cooling  and  Heating 
Preference Selector, the code displayed is  “Ch”, press "OK" to send the 
Query  Multi-split  Cooling and  Heating  Preference  Selector  code;  press 
the Up/Down key to select H (heating preferred), C (cooling preferred) or 
A (master settings), press "OK" to confirm; and press "On/Off" for 2s to 
exit.