CLEANING AND MAINTENANCE
The appliance requires no periodic maintenance. Simple checks by the user to
keep it in perfect working order are, however, necessary.
CAUTION! Before carrying out any cleaning or maintenance work, discon-
nect the appliance from the mains electricity supply!
ORDINARY MAINTENANCE
For standard use of the unit in normal condition we recommend:
- to clean the air lter every 6 month and change it every 2 years;
- to clean the housing;
- to clean the coil;
- to clean the drain tting (check the normal condensate ow).
CLEANING THE AIR FILTER
The appliance is tted with an air lter on the fan inlet. During normal operation
the lter withholds impurities in the air.
The lter should be cleaned periodically to keep its ltering properties and the
airow to the fan unchanged. It is advisable to clean the lter at least once a
month, proceeding as follows.
1. Take out the lter.
2. Place the lter on a at, dry surface and remove the accumulated dust with
a vacuum cleaner.
3. Wash the lter with water and detergent (no solvents).
4. Leave the lter to dry in a ventilated place in the sun.
5. Replace the lter when it is perfectly dry.
Clean the lter at the beginning and end of every season.
Description Pic. 24 - Cleaning the lter for the lower intake version
Description Pic. 25: Cleaning the lter for the front intake version
NOTE
The procedure for ceiling-mounted horizontal version is the same.
Pic. 24
Pic. 25
WATER
+
DETERGENT
WATER
+
DETERGENT
CLEANING THE HOUSING AND THE CONTROL PANEL
To clean the housing, use a dry soft cloth to avoid scratching the enamel.
To clean the control panel and the air outlet louvres, use a vacuum cleaner tted
with a soft dusting tool or use a separate brush.
Delicately clean the louvres and the controls by removing dust from the cracks
and corners.
Under no circumstances use water.
Pic. 26
WHAT TO DO IF...
The fan does not work
Possible cause: power failure
Possible remedy: check the on/off switch
Possible cause: switch in position “0”
Possible remedy: change position on the control panel
Possible cause: water in the system not hot enought
Possible remedy: check that the outlet temperature is above 40°C
Little outowing air
Possible cause: clogged lter
Possible remedy: clean the lter
The appliance does not heat
Possible cause: no hot water in the system
Possible remedy: check that the boiler and circulating pump are
working
Possible cause: Incorrectly positioned hot/cold switch
Possible remedy:
check that the switch is on
for heating and for
cooling.
The appliance does not cool
Possible cause: no cold water in the system
Possible remedy: check that the chiller and the circulating pump are
working
The appliance heat/cool very little
Possible cause: incorrectly regulated thermostat
Possible remedy: turn the thermostat knob (if installed) left/right
Possible cause: air in the pipes
Possible remedy: bleed by loosening the valve at the heat exchanger
inlet
Water on the oor during cooling
Possible cause: blocked condensate drain
Possible remedy: switch off the appliance and contact the installer to
check condensate drainage
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