11
USER MANUAL
Maintenance and care: Inspection of the lter
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Maintenance and care
Inspection of the lter
Preventive maintenance is necessary at regular intervals if the unit is to operate eciently
and optimally without unintended stoppages, and to ensure the expected service life of at
least 10 years.
It is important to notice that intervals between lter maintenance can vary according to the
specic environment, and that moving parts are wearing parts, and will need replacement
when worn.
The factory warranty only applies if it can be documented that regular preventive main-
tenance has been carried out as prescribed. The documentation can be a written logbook
containing a company stamp or equivalent.
The lters are the only parts that the user can maintain himself.
Maintenance of the lter must as a minimum be carried out as shown here:
Interval Task To be carried out by:
Six
months
Check lters. Replace if necessary User
Annual Change lters User
Other components must be inspected at least every second year by trained professionals (see
page 40). Remember to contact a trained professional for a service check regularly.
The unit has a built-in timer for its lter alarm (every six months as standard). The timer period
for the lter alarm can be changed via the remote control or PC Tool, or it can be reset via the
alarm button
When the timer expires, a lter alarm is triggered. A buzzer will sound and the LED “!” will light
up orange. (If the LED lights up red, please see Troubleshooting section on page 44.
Press for 5
sec.
Resets the lter alarm when the alarm is triggered
Resets the lter timer without the timer having expired.
A short beep will sound, indicating that the lter alarm has been reset correctly.
Step Action Illustration
1 Remove the lters and inspect them after
the lter alarm has been triggered.
2 Even if only one lter is clogged, we recom-
mend replacing both lters to avoid imbal-
ance in the airow through the unit.
NOTE: Replace the lters at least once a year,
regardless of whether they are clogged or an
alarm has been triggered.
3 Make sure that the lters are inserted the
right way. The arrows on the lter must point
in the direction shown here.
Introduction
Summary of
intervals
Filters - alarm and
inspection
(6 months - 1 year)