U
SER
’
S
AND
I
NSTALLER
’
S
M
ANUAL
M
AINTENANCE
Version: 4.0 (23-08-2007)
45
2. Loosen the screws
3
and remove the strips
4
.
3. Slide the filter out of the grille.
4. Clean or replace the filter.
5. Mount all components in reverse order to the dis-
mounting.
6. Reset the filter service life using function no. 2 at the
manager’s level (if tracking is enabled, see section
5.1.2
).
5.2
Cleaning the unit
You may clean the exterior of the unit with a damp cloth and a
domestic cleaner. Do not use any solvents.
Caution:
c
Make sure no water runs into the unit.
5.3
Scheduled maintenance
Biddle recommends to have the following inspection and main-
tenance works performed by an installer or other technical
expert each year.
•
Check if the filter is clean enough and undamaged. Replace
the filter if necessary (see section
5.1
).
•
Check if the heat exchanger or the electric heating ele-
ments are clean. Settled dust may cause unpleasant smells.
Gently remove dust with a vacuum cleaner.
Caution:
c
The fins of the heat exchanger are delicate parts.
Warning:
w
The fins of the heat exchanger are sharp.
•
Check the operation of the fans.
•
Check if the control panel has stored any fault messages
(see section
6.3
).
3
4
4 3
3
4
3