41
WARNING
Make sure that the mains supply to the unit is disconnected before performing any installation, service, maintenance or
electrical work!
8.3 Maintenance
• Keep the unit surface free from dust.
• Clean the filters with a vacuum cleaner following the below illustrations (Fig. 8b-c-d-e) when the FILTER signal is displayed
on LCD. Their maintenance may differ per situation depending on the internal and external environmental conditions.
• Press FILTER button (Fig. 7.b - ) to reset the Filter Alarm.
• Filters must be replaced every year.
Fig. 8.e
Fig. 8.d
Fig. 8.c
Fig. 8.b
H
• Keep the unit surface free from dust.
• Clean the filters with a vacuum cleaner following the following illustrations (Fig. 8f-g-h-i) when the FILTER signal is displayed on
LCD. Their maintenance may differ per situation depending on the internal and external environmental conditions. Press FILTER
button (Fig. 7.b - ) to reset the Filter Alarm.
• Filters must be replaced every year.
8.4 Service
WARNING
Make sure that the mains supply to the unit is disconnected before performing any installation, service, maintenance or
electrical work!
WARNING
The installation and service of the unit and complete ventilation system must be performed by an authorized installer and in
accordance with local rules and regulations.
H
Fig. 8.g
Fig. 8.f
