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19
filling tap
Then turn the mode selector to the required position. The boiler will
carry out a venting cycle lasting about 2 minutes.
If pressure drops are frequent, request the intervention of the
Technical Assistance Centre.
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The boiler functions normally but does not guarantee a constant
domestic hot water temperature, which remains set at around 50°C.
The intervention of the Technical Assistance Centre is required.
)DXOW$$
Contact the Technical Assistance Centre.
)DXOW$
Turn the mode selector to
OFF, wait 5-6 seconds, then return
the selector to the required position.
If the reset attempts do not reactivate the boiler, request the
intervention of the Technical Assistance Centre.
)DXOW$
The fault is self-resetting, if the boiler does not restart contact the
Technical Assistance Centre.
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23(5$7,216
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Inspection of sealing components
°
°
Cleaning of the primary heat exchanger flue gases side
°
°
Cleaning of the combustion chamber,
fan and venturi tubes
°
°
Checking of the water and gas safety devices
°
°
Checking the gas output and make any adjustments
°
°
Checking the draught and flue gases pipe
°
°
Cleaning of the burner and checking its firing
°
°
Checking the hydraulic operations
°
°
Combustion analysis
-
°
Checking and lubricating the hydraulic unit components
-
°
Checking the system seals
-
°
Washing of the heat exchanger
-
°
Checking the efficiency of the electric
and electronic components
-
°
FAN EFFICIENCY (only for vacuum chamber versions)
°
°
Checking the condensate discharge system
°
°
CHECKING THE CONDENSATE
NEUTRALISER (if installed)
°
°
127(
the maintenance operations described above, must be
carried out every two years in accordance with regulations in force.
/ &OHDQLQJ
The only cleaning operations that we recommend are those
involving the external boiler panels, which should be cleaned using
just a cloth dampened with soap and water.
In the case of stubborn marks, dip the cloth in a mixture of 50%
water and methylated spirits, or use specific products.
0
Do not use fuels and/or sponges soaked in abrasive solutions
or powder detergents.
0
It is forbidden to carry out any cleaning operations before dis-
connecting the boiler from the mains electricity supply; to do
this, turn the main system switch to “off”.
