Topvex FR03 11 Operating and maintenance 151626 (A002)

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Maintenance
3.3.4 Checking the fans
Even if the required maintenance, such as change of filters, is carried out dust and grease may slowly build up inside
the fans (pos.1 and 2, figure 1 ). This will reduce the efficiency.
The fans can be dismounted by loosening the 4 screws on the fan casing (figure 3). Topvex FR06–11 have a fan support
bracket that needs to be removed by loosening 4 screws. The fans may be cleaned with a cloth or a soft brush. Do not
use water. White spirit can be used to remove accumulations which are otherwise difficult to remove. Allow drying
properly before remounting.
Fig. 3 Dismounting the fans
3.3.5 Cleaning the extract louvres and inlet diffusers
The system supplies treated outdoor air to the building and extracts the used indoor air via the duct system and diffus-
ers/louvres. Diffusers and louvres are mounted in ceilings/walls in bedroom, living room, wet rooms, WC etc. Remove
diffusers and louvres and wash in hot soapy water if required. Diffusers/ louvres must be put back with their original
settings and positions in order not to unbalance the system.
The cleaning of these parts is done when necessary.
3.3.6 Checking the outdoor air intake
Leaves and pollution could plug up the air intake grille and reduce the unit’s capacity. Check the air intake grille at least
twice a year and clean if necessary.
3.3.7 Checking the duct system
Dust and grease settlements may build up in the duct system even if filters are changed regularly. This will reduce the
efficiency of the installation. The ducts should therefore be cleaned/changed when necessary. Steel ducts can be
cleaned by pulling a brush, soaked in hot soapy water through the duct via diffuser/louvre openings or special inspec-
tion hatches in the duct system (if fitted).
151626 | A002