Cleaning The Air Filter; Cleaning The Heat Exchanger; D Isposal Requirements; Troubleshooting - Daikin FWD Serie Manual De Instalación Y Operación

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)
Access the equipment through the inspection panel and remove
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the air filter as shown in figure 8 by unscrewing the fixing knobs.
Otherwise, if the filter is inside the intake grid, remove the grid and
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carry out the operations described below.
(See figure 8)
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Intake module with filter
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Air filter, secured to the intake module by means of screws, it
is pulled out like a drawer.
Wash the filter with lukewarm water or, for dry powders, with com-
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pressed air.
Reassemble the filter after having it dried up.
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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 con-
densate tank. Upon having accessed the heat exchanger, clean with
compressed air or low pressure 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.
FWD
Ducted fan units
4PW17549-2
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
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