Bongioanni Multidea Evo, User Instructions, Page: 17 / 20

ROUTINE CLEANING
Internal cleaning of the appliance and removal of combustion residue from the exchange surfaces are operations required
at least once a year, to be performed by professionally qualified personnel.
This is an essential condition to reduce consumption, pollutant emissions and to keep the stated efficiency and reliability
of the boiler over time.
Before cleaning:
- Set the main system switch (IG) to “OFF”
- Close the fuel shut-off valves.
EXTERNAL CLEANING
The outer casing should be cleaned with cloths dampened
with water and detergent. In the case of stubborn stains,
dampen a cloth with a mix of 50% water and denatured
alcohol or with special products.
After cleaning, dry the appliance thoroughly.
WARNINGS
•
Never use abrasive products, benzene or trichloroethane.
MAINTENANCE
Note that it is a COMPULSORY LEGAL REQUIREMENT THAT THE BOILER SUPERVISOR must arrange for PERIODIC
MAINTENANCE and COMBUSTION EFFICIENCY MEASUREMENTS to be performed by PROFESSIONALLY
QUALIFIED PERSONNEL.
The Technical Services department can fulfil this legal requirement when necessary.
PERIODIC MAINTENANCE guarantees:
- Increased safety
- Reduced operating costs
- Extended lifetime of the boiler
- The reassurance of not receiving considerable penalties in the event of inspections.
IG
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USE - SYSTEM SUPERVISOR