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filtration system could compromise the performance of the unit and be detrimental
to users.
- Mark the two retaining lugs (Fig. 16, a) positioned on the micro perforated return
air grille
- Push the two lugs to release the return air grille.
- Lower the hinge-mounted return air grille until it is at right angles to the diffuser.
- Release the filter from its housing.
- After fitting a new filter, refit the return air grille. Lock it near to the panel by
simultaneously pushing the two lugs sharply upwards.
- Check that the grille is securely affixed.
the micro perforated return air grille must never be pushed in beyond the
discharge panel.
5.2. Condensate drain pans
The main and auxiliary condensate drain pans must be kept clean. The pans and
drainage fittings may be completely cleaned using non-abrasive, water-based
detergents. Also check periodically that the drain pipe is not blocked.
VDI 6022, it is essential to clean the drain pan.
- To remove the auxiliary pan:
- Unscrew the bolt under the pan (Fig. 17, b).
- Then unclip it from its location.
- Refit the bolt on the cassette (Fig. 17, a).
- To remove the main pan.
- Open and remove the intake grille on the nozzle (Fig. 18, a).
- Loosen the 4 bolts (Fig. 18, d).
- Pivot the 4 bolts holding the nozzle in position (Fig. 18, c).
- Remove the panel (Fig. 18, d).
- Remove the 4 brackets (8 bolts) (Fig. 18, e)
- Swivel the pan (approximately 30°) downwards (Fig. 18, f) and release it from its
retaining lugs. (Fig. 18, g)
To refit, perform the operation in reverse order.
5.3. Fan motor assembly
From time to time, check that the turbines and the motor are clean. If necessary,
clean them using a vacuum cleaner, taking care to ensure they are not damaged.
The electric motor's bearings are lubricated for life and do not require specific
maintenance.
- Open the electrics box
- Disconnect the wires which form the fan motor assembly bundle.
- Follow the same procedure as for disassembling the main pan (Fig. 18) (see
section 5.2 Condensate drain pans)
N 12.59C
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