Riello 20114910, Installer And User Manual

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START CONDENS 25 IS
• Check and compare the boiler’s performance with the relative
speci fi cations. Any cause of visible deterioration must be imme-
diately identi fi ed and eliminated.
• Closely inspect the boiler for signs of damages or deterioration,
particularly 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 speci fi -
cation. Any loss in performance must be identi fi ed and corrected
by fi nding and eliminating the cause.
• Make sure the main heat exchanger is clean and free of any resi-
duals or obstruction; if necessary clean it.
• Check and clean – where necessary – the condensation tray to
make sure it works properly.
9 Always switch off the power to the appliance and close the gas
by the gas cock on the boiler before carrying out any mainte-
nance and cleaning jobs on the boiler.
9
After routine and extraordinary maintenance operations have
been carried out, fill the siphon, following the instructions in the
section “Control prior to commissioning”.
9
After performing the necessary maintenance operations, the
original adjustments must be restored and the combustion prod-
uct analysis must be performed to check the correct operation.
9
Do not clean the appliance or any latter part with flammable sub-
stances (e.g. petrol, alcohol, etc.).
9 Do not clean panelling, enamelled and plastic parts with paint
solvents.
9 Panels must be cleaned with ordinary soap and water only.
Burner cleaning
The fl ame side of the burner is made with an innovative material
of the latest generation.
• Be especially careful during the dismantling, handling and installa-
tion of the burner and the components next to it (e.g.. electrodes,
insulation panels, etc.).
• Avoid direct contact with any cleaning device (e.g. brushes, va-
cuum cleaners, blowers, etc.).
In general, the burner does not require maintenance, but particu-
lar 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 parti-
culates, 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 con-
necting cables of the electrodes
• unscrew the fi xing screws and remove the exchanger-fan cover
assembly from its seat
• unscrew the fi xing screws and remove the burner from its seat
checking it condition
9 If necessary, clean the burner with compressed air, blowing
from the metal side of the burner.
9 It is possible that with ageing, the fi bres constituting the
fl ame side of the burner can tone the colour.
• Reassemble everything in reverse order.
9 If necessary, proceed with the replacement of the sealing
gaskets.
9 The manufacturer declines all responsibility for any damage cau-
sed from the failure to observe that stated above.
7.1 - Boiler cleaning
Before any cleaning operation, switch off the electrical supply by
turning the system's main switch to "Off".
External cleaning
Clean the housing, the control panel, the painted parts and the plas-
tic parts with a cloths dipped in soap and water.
In the case of stubborn stains dampen the cloth with a mixture of
50% water and methylated spirit or with specific products.
0 Do not use fuels and/or sponges soaked in abrasive solutions or
powder detergents.
Internal cleaning
Before starting internal cleaning operations:
• Close the gas shut-off valve
• Close the system taps.