show “EC” when the outdoor unit detects 
refrigerant leakage. 
8.4.13 Louver Position Memory Function 
When starting the unit again after shutting down, 
its louver will restore to the angle originally set 
by  the  user,  but  the  precondition  is  that  the 
angle must be within the allowable range, if it 
exceeds, it will memorize the maximum angle 
of the louver. During operation, if the power fails 
or the end user shuts down the unit in the turbo 
mode,  the  louver  will  restore  to  the  default 
angle. 
8.4.14 8°C Heating(optional) 
In heating operation, the preset temperature of 
the  air  conditioner  can  be  as  lower  as  8°C, 
which  keeps  the  room  temperature  steady  at 
8°C  and  prevents  household  things  freezing 
when the house is unoccupied for a long time in 
severe cold weather. 
8.4.15 Silence operation(optional) 
Press the “silence” button on remote controller 
to initiate SILENCE function. When the Silence 
function  is  activated,  the  compressor  running 
frequency  will  keep  lower  than  F2  and  the 
indoor  unit  will  bring  faint  breeze,  which  will 
reduce the noise to the lowest level and create 
a quiet and comfortable room for you.