M
ANUAL
M
AINTENANCE
Version: 1.0 (21-09-2005)
45
6.3
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 heat exchanger is 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.
•
Clean the unit’s drip tray (for removing the drip tray, see
•
Remove the filter from the condensate pump (see
section 6.4).
6.4
Cleaning the condensate pump filter
Warning:
w
This may be carried out by qualified staff only.
1. Switch the unit off.
2. Disconnect power supply (remove plug from socket or
move main switch to Off).
3. Remove the air inlet cover (see section 8.5).
4. Remove the filter element
1
from the condensate
pump
2
. Use a flat screwdriver to remove it.
5. Clean the filter.
6. Replace the filter.
Caution:
c
Check the filter for leaks by pouring water into the exter-
nal drip tray.
7. Replace the cover.
8. Switch power and unit on.
1
2
2
1
