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WARNING
Disconnect the ventilator from power mains prior to any maintenance opera-
tions. Working on or near energized equipment could result in death or serious injury.
Maintenance of the ventilator means regular cleaning of its surfaces of dust, and cleaning or
replacing its filters.
1. Ventilation unit inspection and cleaning (once per year)
Take off the ventilation unit and clean the fan blades as shown in Figure 13. Remove dust with
a soft brush, cloth or vacuum cleaner. Do not use water, abrasive detergents, solvents or sharp
objects.
2. ERV core and filter maintenance (3-4 times per year)
a) Remove the airflow straightener, first filter, ERV core and sec-
ond filter from the telescopic duct as show in Figure 14. To
remove the ERV core, pull the specially designed cord and
use caution to avoid damage.
b) Clean filters as they get soiled, at least once every three
months.
- After 90 days of operation, an alarm will sound indicating
it is necessary to switch off the ventilator and replace or
clean the filters.
- Wash the filters and let them dry. Only install dry filters in
the air duct.
- Vacuum cleaning is allowed.
- The filter rated service life is 3 years. For new filters contact
the Seller.
c) Some dust may accumulate on the ERV core even in case of
regular maintenance of the filters.
- Regularly clean the ERV core for maximum ventilator effi-
ciency.
- Vacuum the ERV core at least once per year.
d) To reset the timer, install the airflow straightener, ERV core
and filters into the ventilator and then press and hold the
power button for 10 seconds. A long sound signal confirms
that the timer has reset.
3. Exterior-mounted hood maintenance (once per year)
a) The exterior-mounted hood may get clogged with leaves and
debris, which may reduce the ventilator's performance. Check
the exterior-mounted hood twice a year and clean it as often
as required.
b) To clean the exterior-mounted hood, disassemble it as shown
in Figure 15 and then clean the hood and air duct.
4. Replacement of the remote control battery
a) Replace the battery of the remote control after prolonged
use.
b) If the ventilator does not respond to the commands from the
remote control, it is a signal to replace the battery (type: CR2025).
c) To replace the battery of the remote control, remove the
battery holder, replace the battery, and reinstall the holder as
shown in Figure 16.
RECOMMENDED MAINTENANCE
11
Figure 13
Filter
ERV core
Filter
Air ow straightener
Figure 14
Figure 15
+
CR2025
3V
Figure 16
Battery type: CR2025
+
CR2025
3V
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