Bongioanni Multidea Evo 100, Инструкция по установке и обслуживанию, Страница: 60 / 64

- Unscrew the gas ring nuts (3) and (4) remove the gas pipe
(5)
- Detach the blower (6) from the electrical connections and
from the silicon tube
- Disconnect the air intake tube (7) from the blower
- Remove the nuts (8) and extract the burner-blower assembly
(A).
- Remove all dirt from the tubes of the primary condensing
heat exchanger, brushing them with a bristle brush and
removing dirt with a vacuum cleaner.
The burner does not require special maintenance; simply
cleaning with a bristle brush is sufficient.
More specific maintenance operations will be evaluated and
performed by the Authorised Technical Services Centre.
After cleaning, re-fit all components in reverse order of the
above, inserting new seals where necessary.
IMPORTANT
It is compulsory to test sealing efficiency of the gas line, as
required by current standards.
b
WARNINGS
•
The silicon seal of the front panel of the combustion
chamber must be replaced if worn, and in any event
should be changed ever 2 years.
•
The detection electrode (2) also acts as a sensor to
confirm correct condensate drainage. If this electrode
comes into contact with the condensate present in the
combustion chamber, it causes a safety shutdown of the
boiler. Therefore if the insulation inside the combustion
chamber is found to be wet or worn, replace immediately.
Checking and cleaning the condensate drain syphon
The condensate drain syphon (9) does not require special
maintenance. Simply check that no solid deposits have formed
inside (removing if necessary) and that the condensate drain
pipelines are not obstructed.
To clean the syphon, simply unscrew cap (10) for access.
A
1
2
7
8
3
6
9
10
5
4
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MAINTENANCE