Daikin FWE03D Manuel D'installation page 15

Vertical installation
Push the tabs at the filter and pull it back.
FWE03~11D
Fan coil units
3P443944-5E – 2019.09
3 Use a vacuum cleaner or wash air filter with water. When the air
filter is very dirty, use a soft brush and neutral detergent.
4 Set the air filter back to its original position.
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7 Maintenance and service
Installation manual
15