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9
SYSTEMA EOLO RT rev. 09ENIT04052021
MANUTENZIONE
9 MAINTENANCE
WARNING
Before proceeding with maintenance operations, open the main switch by removing
current and close the gas valve.
The user must not intervene on the controls of the appliances placed on the control panel
during maintenance activities.
The maintenance technician must place a warning sign on the control panel of the system
for the entire duration of the maintenance activities where the following sentence is reported:
"System undergoing maintenance, IT IS FORBIDDEN to perform operations on the control
panel of the appliances."
WARNING
During maintenance operations, personnel must be equipped with safety devices
individual protection according to current legislation.
WARNING
Entrust all maintenance operations to professionally qualied personnel responsible in com-
pliance with the national and local regulations in force in the country where the system is
installed and with the contents of this booklet.
WARNING
Have the appliances perform an annual check by qualied personnel with adequate skills and
in compliance with the national and local regulations in force on the subject and as indicated
in this booklet.
In case of unusual behavior of the appliance, immediately disconnect it from the electricity and gas supply and call the
assistance service.
If the appliance is equipped with an air lter, pay particular attention to its cleaning. The dirty lter can cause overheating,
blocking and damage to the appliance.
Based on the cleanliness of the room where the appliance is located, it is necessary to determine the cleaning or lter
replacement program.
Before the start of the winter season, carry out a complete overhaul of the appliance to avoid malfunctions during use.
During maintenance carry out the following operations
■ check the general condition of the device;
■ check the threaded connections of the gas system and the tightness of the gaskets of the device, replace them
if necessary;
■ check the condition of the electrodes and the combustion head, clean them if dirty;
■ check the condition of the gas mixer, if necessary, clean it with a rag or brush;
■ check the condition of the electrical system, conductors, terminals etc.
■ check that the ue gas discharge and air intake ducts are not blocked;
■ check the condition of the combustion chamber, the heat exchanger and the additional condensing exchanger
(depending on the model);
■ check the fan pulleys and the V-belt tension, if necessary, clean the pulleys and adjust the belt tension (para-
graph 8.7 on page 97);
■ check the condition of the air lters and replace them if necessary;
■ Once the checks and maintenance have been completed, after having powered the device and opened the gas
cock:
- check the gas pressure upstream and downstream of the solenoid valve, adjust the maximum and minimum
ow if necessary;
- check the tightness of the gas system;
- perform burner adjustment and combustion analysis.
Important
Put the system back into operation once the maintenance operations have been completed.