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5 MAINTENANCE
The Owner must take care that a suitable maintenance is carried out on the unit as indicated in the Handbook and as required by current local laws and regulations.
The unit maintenance must be carried out by qualied and trained personnel, equipped with personal protective devices, as required by current local laws and
regulations in force.
In general, anyone handling the refrigerant must be equipped, at least, with protective glasses and gloves.
Machine maintenance must be carried out so that:
a) the risk of accidents for people and of damage to things is minimal
b) no damage is caused to the system components
c) the system operation and readiness are not compromised
d) any refrigerant leak is found and solved
e) power consumption is minimal.
Maintenance operations not requiring specic know-how on cooling (for example the cleaning of chilled water coils), may be carried out by qualied personnel
appointed by the Owner.
During maintenance operations, only authorized personnel may stay close to the unit.
During maintenance operations, check the conditions of labels and warnings on the system and its components; unreadable writings must be replaced.
No modication can be carried out on the unit and no component replaced, without prior explicit authorization by the Manufacturer.
Before carrying out any kind of intervention on the machine, cut the power supply to the electric panel off, by turning the main switch to OFF position.
Inside the unit there can be high voltage areas. The intervention on such areas may be carried out only by qualied and trained personnel, licensed as
required by current local laws and regulations.
Component surfaces on the compressor discharge and liquid line may reach high temperatures and they may cause severe burns if touched.
In the unit there are sharp parts and cutting edges which, if accidentally hit, may cause cuts or scratches.
In case of doubts on the detected malfunction or on the most suitable way to solve it, please contact the Manufacturer.
Smoking is forbidden during maintenance operations on the unit.
5.1 ROUTINE MAINTENANCE
The Owner must take care that the unit is adequately maintained, according to the indications contained in the Handbook and what required by current local laws
and regulations.
The Owner must take care that the unit is periodically suitably inspected and maintained, according to the system type, size, age and functions and to the indication
in the Handbook.
If leak detection instruments are installed on the system, they must be inspected at least once a year, to check that they work properly.
During its operation life the unit must be inspected and checked as stated by the current local laws and regulation. In particular, unless more restrictive specications,
follow the recommendation on the following table (see. EN 378-4. encl. D).
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