Coway AP-2021A Gray User Manual page 15

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INDICATORS AND BUTTONS
Indicators
4
UV-C indicator
5
PM1.0 indicator
6
Measurement
indicator
1
Clean mode
indicator
2
Circulation mode
indicator
3
Speed indicator
Clean mode indicator
1
Each indicator lights up when clean mode
is selected.
Speed indicator
3
Each indicator lights up when air speed is
selected.
Level 1→ Level 2 → Level 3
PM1.0 indicator
5
When PM1.0 measurement is displayed,
the indicator lights up together.
PM2.5 indicator
7
When PM2.5 measurement is displayed,
the indicator lights up together.
Gas indicator
9
When the gas level is displayed,
the indicator lights up together.
-
Good (1) → Normal (2) → Poor (3) → Bad (4)
-
If the gas level is higher than the PM2.5
measurement, the default gas level appears is
displayed and the air quality indicator lights up
in a color based on the gas level.
* Gas : Odors and volatile organic compounds
(VOCs) such as formaldehyde
7
PM2.5 indicator
8
Lock indicator
9
Gas indicator
10
Air quality
indicator
Circulation mode indicator
2
Each indicator lights up when circulation
mode is selected.
Normal → Front → Back
* Directional airflow panel rotates depending on the
circulation mode.
UV-C indicator
4
The indicator lights up when UV-C inside
the product is operated.
* The functionality is automatically operated every 12
hours for a 20-min run according to the preset algorithm.
* The UV-C indicator lights up when UV-C is operated,
and the air quality indicator lights off after lighting up
in white for 30 seconds (enter silent mode when the
UV-C function is operated).
* When UV-C operation is complete, it automatically
returns to the previous operation mode.
Measurement indicator
6
It displays air quality such as air quality
level and gas measurement.
- Air quality (PM1.0/PM2.5) measurement/GAS
- Display order: PM2.5 → PM1.0 → Gas
Lock indicator
8
If you press the button for more than
3 seconds, the indicator light turns on and
all buttons can be locked.
Press the button again for more than
3 seconds to unlock the buttons.
Air quality indicator
10
The indicator lights up in different colors as
per the current PM2.5 and gas measurements.
* It displays the worse air quality between PM2.5
and gas.
* However, when PM2.5 and Gas have the same
measurement, dust air quality displayed as a priority.
* Good (Blue) → Normal (Green) → Poor (Yellow) →
Bad (Red)
How to use
14

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