Maintenance - Beretta EXCLUSIVE C Installer And User Manual

EXCLUSIVE
- Select COMBUSTION OFFSET.
It may be necessary to program this parameter in case of a maintenance on
the AKM board rather than on the detection electrode or the burner, in the
case where, after the operation, the combustion values did not fall within
predetermined values.
COMBUSTION OFFSET COMBUSTION OFFSET
SERVICE
SERVICE

5.24 Maintenance

Periodic maintenance is an "obligation" required by law and is essential to
the safety, efficiency and lifetime of the boiler.
It allows for the reduction of consumption, polluting emissions and keeping
the product reliable over time.
Before starting maintenance operations:
- carry out the analysis of the combustion products to check the operating
status of the boiler, then cut off the electrical supply setting the system's
main switch to "off"
- turn off the fuel and water taps of the heating and domestic hot water
system.
To ensure product characteristics and efficiency remain intact and to
comply with prescriptions of current regulations, it is necessary to render
the appliance to systematic checks at regular intervals. When carrying out
maintenance work, observe the instructions given in chapter "1 WARNINGS
AND SAFETY" .
This normally means the following tasks:
- removing any oxidation from the burner
- removing any scale from the heat exchangers
- checking electrodes. When replacing the electrodes it is necessary to
replace also the relative sealing gasket
- checking and cleaning the drainage pipes
- checking the external appearance of the boiler
- checking the ignition, switch-off and operation of the appliance, in both
domestic water mode and heating mode
- checking the seal on the gas and water couplings and pipes
- checking the gas consumption at maximum and minimum output
- checking the position of the ignition-flame detection glowplug
- checking the gas failure safety device.
b
After carrying out the maintenance operations the analysis of the
combustion products needs to be carried out to make sure it is
operating correctly.
b
In case where, after the replacement of the electronic board or the
maintenance of the detection electrode or the burner, the combustion
analysis would restore out of tolerance values, it may be necessary to
take action on the parameter COMBUSTION OFFSET as described
in the section "5.23 Parameters combustion check" .
Note: in case of replacement of the electrode, slight variations of the
combustion parameters can not be excluded. These data wil return
to nominal values after a few hours of operation.
b
Do not clean the appliance or its parts with inflammable substances
(e.g. petrol, alcohol, etc.).
b
Do not clean panels, painted parts and plastic parts with paint thinner.
b
Panel cleaning must be carried out only with soapy water.
34
RESTORE
RESTORE
RESET
RESET
Maintenance of the combustion control system
Maintenance electrode
The detection electrode/ionization sensor has an important function in the
boiler ignition phase and in the maintenance of a proper combustion; in
this context, in case of replacement, it is necessary to always ensure that
it is correctly positioned and to strictly observe the reference shown in the
figure.
flame
ignition electrode
flame detection electrode/
ionization sensor
a
Do not rub the electrode with sandpaper.
b
During the yearly maintenance, check the status electrode
deterioration and, if it is worn, replace it.
In order to prevent potential malfunctions, the detection electrode/
ionization sensor must be replaced every 5 years as it is subject to
wear out during the ignition.
Gas valve
The gas valve is a safety and adjustment device which oversees the correct
operation of the product.
In order to maintain the technical characteristics of the device in full
efficiency, it is recommended to replace it every 10 years.