Cleaning The Air Filter; Cleaning The Heat Exchanger; D Isposal Requirements - Daikin FWN04AATN6V3 Manuel D'installation Et D'utilisation

Cleaning the air filter

Cut voltage to the unit by turning the line switch to OFF.
For cleaning the air filter proceed as follows (see figure 6)
n Access the equipment through the inspection panel and remove the air filter
as shown in figure 8 by unscrewing the fixing knobs.
n Otherwise, if the filter is inside the intake grid, remove the grid and carry out
the operations described below.
(See figure 8)
1 Intake module with filter
2
Air filter, secured to the intake module by means of screws, it is pulled
out like a drawer.
n Wash the filter with lukewarm water or, for dry powders, with compressed
air.
n Reassemble the filter after having it dried up.

Cleaning the heat exchanger

It is advisable to check the condition of the heat exchanger before the start of the
summer season. Also check if the fins are not clogged by impurities.
To access the heat exchanger, remove the delivery panel and the condensate tank.
Upon having accessed the heat exchanger, clean with compressed air or low pres-
sure steam, without damaging the fins of the heat exchanger.
Before operating it in the summer, check the condensate discharges regularly.
NOTE
Adequate and regular maintenance and cleaning means energy
conservation and cost saving.
FWN
Ducted fan units
4PW17549-2N
d
isposal reqUirements
Dismantling of the unit should be done in accordance with the relevant local and
national regulations.
t
roUBleshooting
If the unit does not work properly first check the points reported in the table below
before requesting service.
If the problem cannot be solved contact your dealer or service centre.
symptom 1: the unit does not run at all
P
ossible causes
Power failure
The automatic circuit breaker tripped
The switch is on STOP ("0") position
symptom 2: poor cooling or heating performance
P
ossible causes
Dirty or clogged air filter
Obstacle near the air inlet or outlet
Air inside the heat exchanger
Doors and windows are open
The unit is running at low speed
symptom 3: the unit leaks
P
ossible causes
The unit is not installed with the correct
inclination
The condensate discharge is clogged
c
orrective action
Restore power
Contact service centre
Turn ON the unit, select "I"
c
orrective action
Clean the air filter
Remove the obstacle
Contact the installer
Close doors and windows
Select medium or high fan speed
c
orrective action
Contact the installer
Contact the installer
Installation and operation manual
4