ROUTINE MAINTENANCE
GENERAL INSTRUCTIONS
Periodical maintenance is essential for the safety, efficiency and long life of the appliance. All the operations must be carried
out by qualified personnel. All cleaning and maintenance operations must be performed after having closed the fuel supply
and disconnected the power supply. For the correct operation and maximum efficiency of the boiler, the combustion chamber,
fire tubes and smokebox must be cleaned regularly.
The interval between cleaning operations must be established by the user based on the experience acquired on each individual
system, consequently the maintenance intervals cannot be established in advance.
In any case, any local maintenance standards in force should be observed. During the routine maintenance operations, after having
removed the turbulators, brush the tube bundle and the furnace. Remove the deposits accumulated in the smokebox by opening
the inspection doors. For more intense cleaning, remove the rear smokebox and, if deteriorated, replace the flue gas seal. Check that
the condensate drain is not blocked. Ensure that the control and measurement devices serving the boiler are working correctly.
Measure the amount of top-up water added, and after having analysed the water, add descaler. The calcium and magnesium salts
dissolved in the water will, after repeated refills, cause deposits in the boiler and the overheating of the metal plate, with possible
damage that is not attributable to materials or workmanship, and consequently not covered by the warranty. After having comple-
ted the maintenance and cleaning operations and started the boiler again, check the tightness of the door and the smokebox, and
in the event of gas leaks, replace the corresponding gaskets. The operations carried out must be entered in the system logbook.
SPECIAL MAINTENANCE
Special maintenance to be performed at the end of the season or for extended shutdowns.
All the operations described in the previous chapter must be completed, plus the following additional operations:
- Check the condition of the turbulators for wear.
- After cleaning the flue gas circuit, wipe with a rag dipped in a diluted solution of caustic soda. After having left to dry, wipe all the
surfaces with a rag dipped in oil.
- Hygroscopic substances (quicklime, silica gel in small containers) should be placed inside the furnace, which must then be closed
hermetically so that air cannot enter.
- Do not empty the system and the boiler.
- Protect the screws, nuts and pins on the door with graphite grease.
The operations carried out must be entered in the system logbook.
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OPERATION AND MAINTENANCE