CLIMAVENETA a-CXW 1102, User And Installation Manual

Page: 62 / 72

62
EN
GENERAL INSTALLATION WARNINGS AND MAINTENANCE PLAN
Description Symbol Values Effects of deviations
Hydrogen ion concentration pH 7.5 - 9
< 7
> 9 Corrosion
Fouling
Calcium and magnesium content Hardness (Ca/Mg) 4 - 8.5 °D > 8.5 Fouling
Chlorine ions Cl– < 50 ppm Corrosion
Iron ions Fe³+ < 0.5 ppm Corrosion
Magnesium ions Mg²+ < 0.05 ppm Corrosion
Carbon dioxide CO2 < 10 ppm Corrosion
Hydrogen sulphate H2S < 50 ppb Corrosion
Oxygen O2 < 0.1 ppm Corrosion
Chlorine Cl2 < 0.5 ppm Corrosion
Ammonia NH3 < 0.5 ppm Corrosion
Carbon/sulphate ratio HCO3²-/SO4²- > 1 <1 Corrosion
4. General air quality requirements
The appliance cannot be installed outdoors or in par-
ticularly humid environments. The appliance cannot be
installed in explosive and/or corrosive environments.
Specifically, the heat exchanger, consisting of copper
pipes and aluminium fins, is sensitive to certain sub-
stances; in particular, during the summer condensate
on the heat exchanger may give rise to acid or alkaline
substances that can corrode the copper/or aluminium.
Below are the limits for the main substances that may
lead to the formation of aggressive compounds
- SO2 < 0,02 ppm
- H2S < 0,02 ppm
- NO, NO2 < 1 ppm
- NH3 < 6 ppm
- N2O < 0.25 ppm
5. General requirements regarding the cosmetic
covers and plastics
For ceiling-mounted appliances with a cover cabinet,
this should be cleaned in the same way as a piece of
furniture. For cleaning, use a soft brush and then a
damp cloth and neutral soap. When cleaning the inside
and outside of the appliance, consider that many of the
parts are made from plastic, specifically ABS, polypro-
pylene or nylon. These are easy to clean and store,
however may deteriorate if using the wrong products.
For correct cleaning, use neutral products or specific
detergents. Never use boiling water, acid products, de-
tergents or abrasive sponges. Before cleaning, always
make sure that the appliance is disconnected from
the power supply. Never wet the plastic enclosures
of electrical or electronic boards, such as built-in or
wall-mounted controllers; use a damp cloth and leave
them to dry well before reconnecting the appliance to
the power supply.
6. Cleaning the filter
Filter maintenance depends on the unit’s operating
conditions, and indeed the frequency of inspection and
maintenance will depend how dusty the environment
where the appliance operates is. Depending on the
type of filter, this may be washed, recycled or replaced.
Polypropylene filters can be cleaned by first using a
vacuum cleaner and then washing them with water and
neutral soap. Before reassembling them, wait until they
are perfectly dry.
Polyester wadding filters can be cleaned using a vac-
uum cleaner and then reused only 2 or 3 times, after
which they must be replaced.
Paper or fibreglass filters cannot be cleaned, they must
always be replaced.
Do not operate the appliance without having reassem-
bled or replaced the filter.
7. Cleaning the condensate drain pan
The condensate drain pan must be washed using water
and neutral soap, it is important to check that the drain
connection is clean and not obstructed by objects, dust
or other material. If necessary, use a pipe cleaner to
remove any residues that may build up. Before carrying
out maintenance, always make sure that the appliance
is disconnected from the power supply.
8. Cleaning the fan and checking the motor and ca-
pacitor
Remove any dust that may have formed on the fan mo-
tor or blades. Use a vacuum cleaner and a soft brush.
Before cleaning, always make sure that the appliance
is disconnected from the power supply. When cleaning,
be careful not to pull the motor’s power cables or wires,
and do not remove the balancing weights on the im-
peller. For asynchronous motors with capacitors, make
sure this rotates freely, without any noise that may be
due to deterioration of the grease inside the bushes or
bearings. For PSC motors (permanently split capaci-
tor), check the capacitance value, expressed in µF. The
capacitance value is shown on both the capacitor and
the motor labels. Make sure that the measured value
is not less than 80% of the nominal value. Replace if
necessary.
9. Cleaning the heat exchanger
It is recommended to carry out this operation before
the start of the summer season. To clean the coil, use
a vacuum cleaner and a soft brush following the direc-
tion of the fins. Never run the brush crosswise, to avoid
damaging the heat exchanger.