12USER MANUALMaintenance and care: Inspection of the filterMaintenance and careInspection of the filterPreventative maintenance is necessary at regular intervals if the unit is to function efficientlyand optimally, in order to avoid unintended operation stoppages and to ensure the expectedlifetime of minimum 10 years.It is important to notice, that intervals between filter maintenance can vary depending onthe specific environment, and that moving parts are wearing parts, that needs replacementswhen worn down dependent on the specific environment.The factory warranty only applies if it can be documented that regular preventative main-tenance has been carried out as prescribed. The documentation can consist of a written logincluding a company stamp or equivalent.At minimum, maintenance must be carried out as shown here:Interval Task To be carried out by6 month Check filters, Replace if required User1 year Replace filters UserRemove upper part of the front cover.The unit has a built in timer for filter alarm (6 months by default). The timer period for thefilter alarm can be changed via remote control or PC Tool or can be reset via the alarm buttonWhen the timer has expired a filter alarm is triggered. A buzzer will sound and the LED of the“!”-button will light yellow-orange. (If the LED lights RED, please see: Troubleshooting on page41.)5 Sec. press Resets filter alarm when the alarm has been triggeredResets filter timer without the timer having expired.A short beep will sound, indicating that the filter alarm has been reset succesfully.Step Action Illustration1 Pull out and inspect the filters, when thefilter alarm has been triggered.2 Even if only one of the filters is dirty, werecommend to change both filters in orderto avoid an imbalance in the air flow throughthe unit.NB: Change the filters at least once eachyear regardless of whether they are dirty oran alarm has been triggered.3 After changing the filters, the filter alarmmust be reset with a short press on the alarmbutton.A short beep will sound, indicating that thefilter alarm has been reset succesfully.IntroductionInterval summaryPreparing theinspectionFilters - alarm andinspection(6 months -1 year)