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4 Intelligent Mode
：
①
Without CO2 sensor: the controller automatically adjusts the fan speed according to the air quality (PM2.5
concentration); when the PM2.5 concentration is higher than the set value of 115μg / m³, the fan runs at high
speed; when the PM2.5 concentration is between 75-114μg / m³, the fan runs at medium speed; when the PM2.5
concentration is lower than the set value of 75 μg / m³, and the fan runs at low speed.
②
With CO2 sensor: When the CO2 concentration is higher than the set value of 1000ppm, fan will run at high
speed, when the CO2 concentration value is between 600-999ppm, the fan runs at medium speed, and when the
CO2 concentration is lower than the set value of 600ppm, and the fan runs at low speed.
5 Manual mode: The fan speed switched by the user. Despite the time period and air quality. The fan speed can
be adjusted by the
. The adjustment range is low-medium-high.
6 Mute mode: The fan runs at low speed and cannot switch the fan speed manually under this mode, and it’s
not affected by air quality.
7 Function setting: Press the
to cycle the HVAC system through the three states of "exhaust air-fresh air-
fresh air + exhaust air", each time you press the key to switch one operating mode.
8 WIFI Connection:Long press
till buzzer off , the WIFI icon become blue from red, then it starts connecting,
the icon will turn to white if it match your net successfully.
9 Standby Mode: After the controller is powered on, if there is no operation of setting any of the above working
modes and function settings, the controller will enter into the standby state after one minute. After a short press of
the
key, the product enters the data detection interface.
