17
Recommended maintenance intervals
Component
Action
Interval
Filter
Replaced at regular intervals so that full efficien-
cy of the unit is achieved.
3–6 months
Fans
Fans are cleaned to ensure operational reliability
and efficiency.
12 months
Rotary heat exchanger
Make sure the lamellae are clean. Check the
condition of the drive belt and seals around the
rotor. Replace drive belt and seals/gaskets if
necessary.
12 months
Gaskets in general
Check gaskets on the unit and make sure they are
intact
12 months
Supply air and exhaust valves
Check for dirt in supply air and exhaust valves.
Clean as needed. Check that the valves have the
desired setting in relation to air volumes.
12 months
Air intake
Check for dirt and grime in the air intake and
exhaust, and clean as needed.
12 months
Ventilation ducts
Check the cleanliness of ducts and clean as
needed.
10 years
Brush strips and synthetic leather
Check that the brush strips and synthetic leather
pack tightly around the rotor and that there is no
leakage. Replace brushes and leather if neces-
sary.
3 years
