MANN+HUMMEL OurAir SQ 1750 Manual De Instrucciones Original página 38

Operation
7.8.3 Display brightness
The display brightness can be adjusted for the ambient brightness.
Menu Button
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Settings Advanced settings
Backlight
30 100
Back
7.8.4 Safety
Tap the „Security" icon to change or deactivate the PIN codes of the various users. For more
information, refer to sections 7.3
Menu Button
0 1250 m 3 /h 2500
Settings Advanced settings
Safety
28 – EN
Action
On the display, tap the arrow to go to the
"Advanced settings" view
Use the "Backlight" menu by moving the slider to
the desired position.
The appliance immediately accepts your entries.
The "Back" button takes you back to the "Advanced
settings" menu. The "Back" button takes you back
to the "Settings" menu.
Action
On the display, tap the arrow to go to the
"Advanced settings" view
Tap the „Security" icon to change or deactivate the
PIN codes of the various users.
For more information, refer to sections 7.3
7.9 Service menu
The service menu shows you the remaining service life of the filters and the operating hours of the
appliance.
7.9.1 Show the remaining filter service life
Note
You are automatically informed when the filter elements should be changed. Under
normal conditions of use, such as in offices, medical practices, schools and
environments with regular room cleaning, it is recommended to replace both the
prefilter and the HEPA filter at least every two years (if the filter replacement is not
already indicated in the LED display beforehand). An earlier end of service life (due to
improper use and increased contamination, for example) may be manifested by a
louder operating noise or unusual odor development, among other things. In these
cases, the prefilter must be replaced before the recommended service life has been
reached.
Menu Button
Service menu Filter runtime in days
299
431
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3
Service menu Advanced settings
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3
Back
Operation
Action
The "Filter runtime in days" field displays the filter
service life and, if applicable, information about the
need for a filter change.
As an indicator, the display slowly changes to red
starting with green.
In the advanced settings you can view the time for
the filter change.
The "Back" button returns you to the "Service
menu" that displays the filter health
EN – 29