Maintenance; Cleaning The Air Filter; Cleaning The Heat Exchanger; Cleaning The Cabinet - Galletti ART-U Serie Installations-, Bedienungs- Und Wartungsanleitung

8

MAINTENANCE

For safety reasons, before carrying out any maintenance or
cleaning jobs, turn off the unit by moving the fan speed se-
lector to "OFF" and putting off the main switch 0 (OFF).
DANGER!
Due caution must be taken while carrying out
maintenance: some metal parts may cause injuries; wear
protective gloves.
ART-U type fan coils do not have particular maintenance re-
quirements: it is sufficient to periodically clean the air filter.
A running in period of 100 hours is necessary to eliminate all ini-
tial mechanical friction of the motor.
Start-up should be carried out at the maximum operating speed.
To assure that the ART-U fan coil units perform efficiently, abide
by the following indications:

CLEANING THE AIR FILTER

Clean the air filter at least once a month and in any case at the
start of the period of use (before the heating and the air condi-
tioning season).
To clean the air filter proceed as follows see figure 11.11 p. 71 :
1. Before performing any work on the unit, disconnect it from
the power supply.
2. Unscrew the two 4M screws that block the filter by pullingm
it out of its housing and freeing it from the magnets (use a
Allen screwdriver, maximum length 8 cm).
3. Clean it with warm water (in the event of dry dust build-up,

CLEANING THE HEAT EXCHANGER

It is advisable to check the condition of the exchangers before the start of every period of use and to make sure that the fins are not
obstructed by dirt.

CLEANING THE CABINET

Ū Use a soft cloth
Ū Never pour liquids onto the unit, as this could cause electrical
9

TROUBLESHOOTING

If the unit is not working properly, before calling a service engi-
neer carry out the checks indicated in the table below.
PROBLEM
No power supply
The unit fails to work The automatic safety cutout has tripped
The on/off switch is on
The air filter is dirty or clogged
The heat exchanger is dirty
An obstacle is obstructing the air intake or outlet
The unit provides insufficient cooling
or heating
Air is trapped inside the heat exchanger
There are open windows and/or doors
The minimum speed has been selected
The unit has not been installed with the correct inclination
The unit "leaks" water
The drainage outlet is clogged
Ū keep the air filter clean
Ū do not pour liquids inside the equipment;
Ū do not introduce metal parts through the air outlet (upper)
grill and through the frontal grill;
Ū avoid obstructing the air outlet or intake
Whenever starting up the unit after it has not been used for a
long time, check that there is no air in the heat exchanger.
Before the period of operation in the cooling mode, check that
condensate is properly drained and that the heat exchanger fins
are not obstructed by impurities.
Clean as necessary using compressed air or low pressure steam,
taking care not to damage the fins.
Adequate periodic maintenance will ensure save both ener-
gy and cost savings.
using compressed air).
4. After allowing it to dry, fit the filter back in place.
5. Once the filter has been repositioned, fix it again with the
two 4M screws.
WARNING: THE FILTER MUST ALWAYS BE SECURED IN PLACE
WITH THE SCREWS PROVIDED TO PREVENT ACCIDENTAL
CONTACT WITH THE FAN.
It is recommended to replace the air filter once a year, using an
original replacement filter; the indoor unit model is specified on
the identification plate on the inside of the side panel.
discharges and damage the internal components.
Ū Never use harsh chemical solvents.
If the problem cannot be solved, contact your dealer or the near-
est service centre.
CAUSE
Restore the power supply
Call a service centre for assistance
Start the unit by moving the switch to I
Clean the air filter
Call the installer for assistance
Remove the obstacle
Call the installer for assistance
Close windows and/or doors
Select medium or maximum speed
Call the installer for assistance
Call the installer for assistance
SOLUTION
FC66005704-05
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