9
Controller Operation
MUTE
OFF
MUTE
ON
FILTER
4%
FILTER
RESET?
NOTE: once in the sub-menu, if left idle for 10 seconds, screen will return to primary interface.
Quickly spin
Press and hold
Press and hold
FILTER
100%
Press and hold
confirm to reset?
Reset
(2.3) Under MUTE: quick spin to switch between ON and OFF
NOTE: * When OFF, alarm is on, screen will flash warning signal
* When ON, alarm is off, screen will flash warning signal
(2.4) Under FILTER, press and hold screen for 2 seconds, the prompt “RESET?” will appear (to reset filter lifespan calculation). Press and hold screen
again to reset. If left idle for over 5 seconds, screen will return to primary interface.
(2.5) Under RESET?, press and hold to restore to factory settings. If left idle for over 3 seconds, screen will return to primary interface.
10
RESET?
Reset
RESET?
OK
Reset OK
Warning
English
English
English
CO
2
warning
1. When temperature is over 60
˫
, temperature protection mode will be activated.
2. Under temperature protection mode, only manual fan speed adjustment is allowed, all other functions will remain off. Screen will flash
current temperature.
3. When temperature falls below 60
˫
, all functions will resume.
4. When below 0
˫
, sensors will be affected; display value may not be accurate.
When the filter lifespan is below 5%, under FILTER interface, the screen will flash
current lifespan (once per 1 second).
Please clean the pre-filter regularly. Recommended to use a vacuum.
Temperature Protection Mode
Filter Use
Cleaning pre-filter
1. When CO
2
levels are above 2000ppm/2500ppm/3000ppm, product will respectively initiate level one, two, and three warning.
* Level one: CO
2
screen will flash, a continuous alarm will ring (once per 3 seconds).
* Level two: CO
2
screen will flash, a continuous alarm will ring (once per 2 seconds).
* Level three: CO
2
screen will flash, a continuous alarm will ring (once per 1 second).
2. Warning will initiate when CO
2
levels continue to rise.
* Double press to cancel warning for 5 minutes. After 5 minutes if CO
2
level further increases, then warning will resume.
* Press to cancel alarm for 5 minutes, screen will resume to flash. After 5 minutes if CO
2
level further increases, then warning will resume.
3. When CO
2
warning is activated, screen will switch to CO
2
interface if left idle for over 5 seconds.