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23 MAINTENANCE
MAKE SURE THE UNIT IS NOT ELECTRICALLY POWERED BEFORE CARRYING OUT ANY CLEANING
OR MAINTENANCE OPERATION.
ALL ORDINARY AND EXTRAORDINARY MAINTENANCE OPERATIONS MUST BE CARRIED OUT BY
SPECIALIZED AND AUTHORIZED PERSONNEL, IN ORDER TO ENSURE COMPLIANCE WITH THE
CURRENT SAFETY REGULATIONS.
MAINTENANCE MUST BE CARRIED OUT AT LEAST ONCE A YEAR.
NB.: Always make sure that the power supply lines (of the unit and of the integrative electrical heaters) are
disconnected at the start before carrying out any maintenance operation.
23.1
Onsite Regular Maintenance
This section is extremely important for efficient operation of the unit during the operational life. A few operations
carried out periodically can avoid the need to call specialized personnel. The operations to be carried out do not
require technical knowledge and consists of simple checks of the components of the unit.
23.1.1
S
TRUCTURE
To prevent noise and strange vibrations to rise make sure that the various steel parts are well fastened together and
that the inspection panels are properly fixed to the unit.
In case of oxidation, treat with paints, suitable to avoid or reduce the problem, the parts of the unit affected.
23.1.2
H
YDRAULIC
P
LANT
Visually check that the hydraulic plant is leaks free and is pressurized. Verify there is no air in the circuit (acting on the
air vents). Verify that the filters in the plant are clean.
23.1.3
E
LECTRICAL
P
LANT
Verify that the power supply cable that connects the unit to the distribution panel is not affected by cuts, cracks or
alterations that could compromise the insulation. Contact an authorized service centre if maintenance is required.
After a first period of time from the first start up and at every stop or seasonal start up carefully check that each
electrical connection is well fixed.
23.1.4
F
ANS
Verify that the fans are well fixed to the protective grilles and to the structure of the unit. Check any unbalance of the
fans pointed out by anomalous vibrations and noise.
23.1.5
F
INNED
C
OIL
Accidental contact with the exchanger fins can cause small cuts. Use protective gloves to carry out the operations
described below. The exchangers must be able to ensure the maximum heat exchange, therefore their surfaces must
always be clear of any dirt and dust that can present on them due to the action of the fans. Using a brush, remove all
the impurities present on the surface of the coil. Clean the aluminium surface of the coil with a compressed air jet,
making sure to aim the jet with the direction of the fins so as to avoid damages. If the aluminium fins has been
damaged, “comb” the coil with a special tool until the damage is completely eliminated.
23.1.6
F
INNED
C
OIL
C
ONDENSATE
D
RAINAGE
Verify that, during the defrosting cycles that take place in heating mode, the drainage of the water from the finned
pack occurs properly and that the drainage fitting on the unit basement is not clogged. If the flow is not correct, with
low outdoor temperature, a layer of ice could be generated on the unit basement and the operating of the unit could be
compromised.
23.2
Annual Maintenance / Service Visit
An maintenance / service visit from a heat pump specialist engineer must be completed once a year to ensure safe
and efficient operation. Damaged caused by the lack of maintenance / servicing will not be covered under warranty.
Summary of Contents for S-ASX 30
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Page 24: ...24 10 CORRECTIVE FACTORS 10 1 Heating Performances ...
