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MAINTENANCE
MAINTENANCE
Routine maintenance is essential to keep the device always
5�1 Preliminary warnings
This section is dedicated to the Technical Service
Assistance. The features of the Technical Ser-
vice Assistance are described in chapter "Recipi-
ents" p.7.
For detailed information on accessories please re-
fer to the "Conguration accessories" p. 55 sec-
tion.
-
ered by the Kyoto Protocol. Maintenance and disposal
only.
Before each cleaning and maintenance intervention:
– disconnect the device from the power mains by turn-
– wait for the components to cool down in order to
avoid any burns
Carrying out any technical or cleaning work before dis-
connecting the unit from the power supply is forbidden.
Make sure that there is no voltage before operating.
After completing the maintenance work, must be re-
stored the original condition.
5�2 Once-a-year operations
The once-a-year maintenance plan includes the following
operations and checks and must be carried out by the
5�2�1 Routine maintenance of the unit
Hydrauliccircuit
Check:
•
•
•
• absence of air in the circuit (venting)
•
evaporator
• the status of thermal insulation of the hydraulic pip-
ing
• the glycol percentage, if any
Electric circuit
Check:
• electrical supply voltage
• electric draw
• tightness of connections
• that there is no damage or excessive wear on the
electrical cables
• the seals and sealing materials have not deteriorat-
ed to such an extent that they are no longer suitable
-
pheres inside
•
• safety devices
Mechanical checks
Check:
• the tightness of the screws, the compressors and the
electrical box, the external panelling of the unit
• the conditions of the structure
Poor fastenings cause abnormal noises and vibrations.
Treat any rusty parts with paints suitable to eliminate or
reduce the rust.
Cleaning
• clean cosmetic covering elements
Refrigeration checks
Make sure that:
• the amount of charge complies with the size of the
room in which the parts containing the refrigerant
p.20)
• ventilation equipment and vents functioning properly
and not obstructed
• the marking on the equipment must remain visible
and legible. Illegible markings and graphics must be
corrected
• the refrigerant pipes and components are installed
in a position in which they are unlikely to be exposed
to corrosive substances unless the components are
made of inherently corrosion-resistant materials or
adequately protected against corrosion
• the thermodynamic values are within the nominal pa-
rameters
Under the provisions of Directive 517/2014/EU, plants
kg of R32 gas or 2.39 kg of R410a gas) must be checked
for leaks once a year, using either direct or indirect
2015/2067.
The company responsible for maintenance must keep a
logbook in which the following information is recorded:
• the technician who performed the maintenance or
repair,
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