12.10 Cleaning of the finned pack:
12.10.1 Place the main switch in the "OFF" position and wait until all the fans have stopped rotating. Remove the fans by
unscrewing the retaining screws.
12.10.2 Place the main switch in the "OFF" position and wait until all the fans have stopped rotating. Remove the fan shroud and,
if necessary, also the drain pan by unscrewing the retaining screws (see Chapter 8).
12.10.3 Use a jet of water at a max pressure of 50 bar for damp dirt or grease at a minimum distance of 150 mm, directed
perpendicularly against the finned pack, avoiding bends or damage to the fins and pipes. If appropriate add a neutral
detergent (refer to its instructions for use). Rinse and then dry with compressed air as indicated at point 12.10.2. Make
sure that the electrical components are not affected by the jet of water. If necessary, provide adequate coverage.
12.10.4 Aspirate possibly from the air inlet side.
12.10.5 After having cleaned the finned pack, perform a visual inspection to identify any dirt or the presence of fins that are
damaged (repeat the cleaning operation if necessary).
12.11 Only use original spare parts. Do not wait until the component is completely worn out, preventive replacements can
greatly improve performance and extend the life of the model.
12.12 For maintenance of any accessories or components mounted on the model, refer to their user-manuals.
12.13 When replacing electric heaters take particular care during installation in order to avoid damage to the vulcanization;
correctly reset wiring and existing fastening systems to avoid possible movement during operation.
12.14 After every maintenance work, carry out the checks before commissioning according to Chapter 10 and after commissioning
according to Chapter 11.
12.15 Always take into account the working pressure of the system: in the event of a rupture, there is a risk of injury to persons
or damage to property due to the projection of debris, even from a great distance. Before carrying out any work, always
make the system safe as per current regulations. The use of PPE is recommended (see Chapter 13).
12.16 In the event of a leak of refrigerant fluid, check that it has not penetrated into rooms below or adjacent to the place of
installation: secure the rooms as per current regulations.
Figure 4
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