User Manual

5
Controller
Basic model - double control switch
1) Power-on/off
 OFF: Power off the unit
 ON: Power on the unit
2) Fan speed regulation
 LOW: The unit operates at the low speed
 HIGH: The unit operates at the high speed
Upgraded version - LCD controller
1) Power-on/off
 Press to start the unit.
 Press again to shut down the unit.
2) Fan speed regulation
 Press ▲ and ▼ to stop the fan or make the fan operate at the low speed or high speed.
3) Work duration threshold setting for the filter
 Hold down for 2s to set the work duration threshold for the filter. The position
displaying the temperature and humidity originally will display the work duration
threshold of the filter and blink. Press ▲ and ▼ to change the value (the value range
is 0–9,900 hours). If there is no keystroke operation within 10s, the controller exits the
setting and saves data. The filter starts timing when the fan starts. After the filter
operating time exceeds the set time, the filter icon “ " blinks.
4) Filter reset
 Press . The position displaying the temperature and humidity originally will display
the time that the filter has worked for, in hours. For example, the displayed number