DC Inverter Duct Type Air Conditioner  Installation and Operation Manual
11
Continued
Fig.11 Timer setting under on state of the unit
Timer range: 0.5-24hr. Every press of▲ or ▼ button will make setting time increased or decreased by 0.5hr.
If press either of them continuously, setting time will automatically increase/ decrease by 0.5hr every 0.5s.
Note:
1. If both timer on and timer off are set in unit on interface, the wired controller only display time of time 
off. If both of them are set in unit off-state, only time of timer on is displayed. 
2. Timer on in unit on-state is timed from the time of unit off and timer off in unit off-state is timed from the 
time of unit on.
4.7 Air Exchange Setting
Turn on air Exchange function: 
Under on-state  of  the unit,  press  Function  button  to  go  to this function  setting  (Air mark  blinks).AIR 
1  displayed at  the  ambient temperature-displayed location  (888) is defaulted (the last  type of AIR will be 
displayed after adjustment).Press ▲ or ▼ button to adjust air type. Press Enter/Cancel button to turn on/off air 
function. After turning on this function, the air mark shows.
There are 10 types of AIR, but only 1-2 types are for remote control. Refer to the following details: 
 ● 1――The unit continuously runs for 60min, and fresh air valve runs for 6 min.
 ● 2――The unit continuously runs for 60min, and fresh air valve runs for 12 min.
 ● 3――The unit continuously runs for 60min, and fresh air valve runs for 18 min.
 ● 4――The unit continuously runs for 60min, and fresh air valve runs for 2 4 min.
 ● 5――The unit continuously runs for 60min, and fresh air valve runs for 30 min.
 ● 6――The unit continuously runs for 60min, and fresh air valve runs for 36 min.
 ● 7――The unit continuously runs for 60min, and fresh air valve runs for 42 min.
 ● 8――The unit continuously runs for 60min, and fresh air valve runs for 48 min.
 ● 9――The unit continuously runs for 60min, and fresh air valve runs for 54 min.
 ● 10――The unit continuously runs for 60min, and fresh air valve always runs.
Turn off air Exchange function: During Air function, press Function button to go to the Air function. In 
this case,  air  mark is  blinking, and then  press  Enter/Cancel  button to  turn off this function. Air mark will 
subsequently disappear. 
Air Exchange setting is shown as in Fig.12: