Riello 20114905, Installer And User Manual

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START CONDENS 25 - 29 Kis
9 - Technical data
Description Start Condens 25 Kis Start Condens 29 Kis
Fuel G20 G31 G20 G31
Appliance category II2H3P
Country of destination (+)
Type of appliance
B23P, B53P, C13-C13x, C33-C33x, C43-C43x, C53-C53x,
C83-C83x, C93-C93x
Heating
Nominal heat input kW 20,00 25,00
Nominal heat output (80/60°C) kW 19,50 24,45
Nominal heat output (50/30°C) kW 20,84 26,23
Reduced heat delivery kW 5,00 6,00
Reduced heat output (80/60°C) kW 4,91 5,90
Reduced heat output (50/30°C) kW 5,36 6,40
Nominal Range Rated thermal output (Qn) kW 20,00 25,00
Minimum Range Rated thermal output (Qn) kW 15,30 17,00
Domestic hot water
Nominal heat input kW 25,00 29,00
Nominal heat output (*) kW 25,00 29,00
Reduced heat delivery kW 5,00 6,00
Reduced heat output (*) kW 5,00 6,00
Efficiency
Useful efficiency Pn max - Pn min (80/60°C) % 97,5 - 98,1 97,8 - 98,3
Useful efficiency 30% (47° C return) % 102,2 102,0
Useful efficiency Pn max - Pn min (50/30°C) % 104,2 - 107,2 104,9 - 106,7
Useful efficiency 30% (30° C return) % 108,6 108,6
Efficiency at average Pn Range Rated (80/60°C) % 97,4 97,3
Combustion efficiency % 97,9 98,1
Residual discharge head of boiler without pipes Pa 100 110
Flow rate CH
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
flame 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 fixing screws and remove the exchanger-fan cover
assembly from its seat
• unscrew the fixing 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 fibres constituting the
flame side of the burner can tone the colour.
• Reassemble everything in reverse order.
9
If necessary, proceed with the replacement of the sealing
gaskets.
The manufacturer declines all responsibility for any damage caused
from the failure to observe that stated above.
8.1 - 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.