Checking The Combustion Parameters - Beretta QUADRA GREEN 25 R.S.I. Manual De Instalacion Y Uso

4.9 Checking the combustion parameters

To carry out the combustion analysis, proceed as follows:
- set the main switch of the installation to the "OFF" position
Method 1 - frontal procedure
- turn the selector to position
Method 2 - board procedure
- loosen the fixing screws (D) on the housing (fig. 13)
- move the base of the housing forwards and then upwards to unhook it
from the chassis
- loosen the fixing screws (E) on the instrument panel (fig. 14)
- lift then turn the instrument panel towards you
- loosen the fixing screws on the cover (F) to access the terminal board
(fig. 16)
- using a small screwdriver included, press the CO button (fig. 26)
Live electrical parts.
For both methods
- Wait for burner ignition. The display shows "ACO", the yellow LED flash-
es and the boiler operates at maximum heat output.
- Insert the analyser probe in the ports provided in the air distribution box,
after removing the screws from the cover (fig. 40).
- Check that the CO values match those given in the table, if the value
2
shown is different, change it as indicated in the chapter entitled "Gas
valve calibration".
- Perform the combustion check.
Then:
- remove the analyser probe and close the sockets for combustion analy-
sis with the special screw
- close the instrument panel and refit the housing
The flue gas analysis probe must be fully inserted as far as pos-
sible.
IMPORTANT
Even during the combustion analysis phase, the function that switches the
boiler off when the water temperature reaches the maximum limit (about
90°C) remains enabled.
5 MAINTENANCE
The appliance must be systematically controlled at regular intervals to
make sure it works correctly and efficiently and conforms to legislative pro-
visions in force.
The frequency of controls depends on the conditions of installation and
usage, it being anyhow necessary to have a complete check carried out by
authorized personnel from the Servicing Centre every year.
- Check and compare the boiler's performance with the relative specifica-
tions.
Any cause of visible deterioration must be immediately identified and
eliminated.
- Closely inspect the boiler for signs of damages or deterioration, particu-
larly with the drainage and aspiration system and electrical apparatus.
- Check and adjust – where necessary – all the burner's parameters.
- Check and adjust – where necessary – the system's pressure.
- Analyze combustion. Compare results with the product's specification.
USER GUIDE
1a GENERAL WARNINGS AND SAFETY
The instruction manual is an integral part of the product and it must there-
fore be kept carefully and must accompany the appliance; if the manual
is lost or damaged, another copy must be requested from the Technical
Assistance Service.
Boiler installation and any other assistance and maintenance opera-
tions must be carried out by qualified personnel according to the
provisions of local legislation.
For installation, it is advisable to contact specialised personnel.
The boiler must only be used for the application foreseen by the
manufacturer. The manufacturer shall not be liable for any damage
to persons, animals or property due to errors in installation, calibra-
tion, maintenance or due to improper use.
This appliance should not be operated by children younger than 8
years, people with reduced physical, sensory or mental capacities,
or inexperienced people who are not familiar with the product, un-
less they are given close supervision or instructions on how to use it
safely and are made aware by a responsible person of the dangers
its use might entail. Children must not play with the appliance. It is
the user's responsibility to clean and maintain the appliance. Children
should never clean or maintain it unless they are given supervision.
The safety and automatic adjustment devices must not be modified,
during the system life cycle, by the manufacturer or supplier.
- chimney sweep function
Any loss in performance must be identified and corrected by finding and
eliminating the cause.
- Make sure the main heat exchanger is clean and free of any residuals or
obstruction.
- Check and clean – where necessary – the condensation tray to make
sure it works properly.
After routine and extraordinary maintenance operations have
been carried out, fill the siphon, following the instructions in the
section "First commissioning".
IMPORTANT: always switch off the power to the appliance and close the
gas by the gas cock on the boiler before carrying out any maintenance and
cleaning jobs on the boiler.
Do not clean the appliance or any latter part with flammable substances
(e.g. petrol, alcohol, etc.).
Do not clean panelling, enamelled and plastic parts with paint solvents.
Panels must be cleaned with ordinary soap and water only.
BURNER CLEANING
The flame side of the burner is made with an innovative material of the
latest generation.
- Be especially careful during the dismantling, handling and installation of
the burner and the components next to it (e.g.. electrodes, insulation pa-
nels, etc.)
- Avoid direct contact with any cleaning device (e.g. brushes, vacuum cle-
aners, blowers, etc.).
In general, the burner does not require maintenance, but particular cases
may occur where cleaning is necessary (e.g.. distribution network of gas
containing solid particles and in the absence of a filter on the line, suction
air containing excessively adhesive particulates, etc.).
For this reason, perform a visual control of the burner in order to ensure the
proper functioning of the product:
- Remove the front cover of the air box
- Unscrew the fastening nut of the gas train to the valve, remove the gas
train spring clip to the mixer and turn the gas train outwards
- Remove the silencer from the mixer
- Disconnect the connectors of the wiring from the fan and the connecting
cables of the electrodes
- Unscrew the fixing screws and remove the exchanger-fan cover assem-
bly from its seat
- Unscrew the fixing screws and remove the burner from its seat checking
it condition
If necessary, clean the burner with compressed air, blowing
from the metal side of the burner
It is possible that with ageing, the fibres constituting the flame
side of the burner can tone the colour
- Reassemble everything in reverse order
If necessary, proceed with the replacement of the sealing gas-
kets
The manufacturer declines all responsibility for any damage caused from
the failure to observe that stated above.
This appliance produces hot water, therefore it must be connected
to a heating system and/or a domestic hot water mains, compatible
with its performance and output.
In case of water leakage, close the water supply and contact the
Technical Assistance Service immediately.
In case of absence for long periods time, close the gas supply and
switch off the electrical supply main switch. If there is a risk of frost,
drain the boiler.
From time to time check that the operating pressure of the hydraulic
system does not go below 1 bar.
In case of failure and/or malfunctioning, deactivate the appliance,
and do not try to repair or operate directly on it.
Appliance maintenance must be carried out at least once a year:
scheduling it with the Technical Assistance Service will avoid wasting
time and money.
When the product reaches the end of its life it should not be disposed
of as solid urban waste but should be brought to a separated waste
collection facility.
Boiler use requires strict observation of some basic safety rules:
Do not use the appliance in any manner other than its intended
purpose.
It is dangerous to touch the appliance with wet or damp body parts
and/or when barefoot.
ENGLISH
27