Riello FS10 Quick start guide

Installation, use and maintenance instructions
20039281 (2) - 10/2011
Forced draught gas burner
CODE MODEL TYPE
20033121 FS10 564T31
GB
One stage operation

1 20039281
GB
CONTENTS
1. BURNER DESCRIPTION
Gas burner with one stage working.
1.1 BURNER EQUIPMENT
Insulating gasket . . . . . . . . . . . . No. 1 Screws and nuts for flange to be fixed to boiler. . . No. 4
Cable grommet. . . . . . . . . . . . . . No. 1 Screws for fixing the cover . . . . . . . . . . . . . . . . . . No. 3
Hinge . . . . . . . . . . . . . . . . . . . . . No. 1 7 pin plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
1. BURNER DESCRIPTION . . . . . . . . . . . 1
1.1 Burner equipment . . . . . . . . . . . . . . . . . 1
2. TECHNICAL DATA . . . . . . . . . . . . . . . . 2
2.1 Technical data. . . . . . . . . . . . . . . . . . . . 2
2.2 Overall dimensions . . . . . . . . . . . . . . . . 2
2.3 Working field. . . . . . . . . . . . . . . . . . . . . 2
3. INSTALLATION . . . . . . . . . . . . . . . . . . 3
3.1 Boiler fixing . . . . . . . . . . . . . . . . . . . . . . 3
3.2 Probe-electrode positioning. . . . . . . . . . 4
3.3 Gas feeding line . . . . . . . . . . . . . . . . . . 4
3.4 Electrical wiring. . . . . . . . . . . . . . . . . . . 5
3.4.1 Standard electrical wiring . . . . . . . . . . . 5
3.4.2 Electrical wiring with gas leak control
device . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. WORKING . . . . . . . . . . . . . . . . . . . . . . . 6
4.1 Combustion adjustment. . . . . . . . . . . . . . 6
4.2 Combustion head setting. . . . . . . . . . . . . 6
4.3 Air damper setting. . . . . . . . . . . . . . . . . . 7
4.4 Combustion check. . . . . . . . . . . . . . . . . . 7
4.5 Air pressure switch . . . . . . . . . . . . . . . . . 7
4.6 Burner start-up cycle. . . . . . . . . . . . . . . . 8
4.7 Start-up cycle diagnostics . . . . . . . . . . . . 8
4.8 Resetting the control box and using
diagnostics . . . . . . . . . . . . . . . . . . . . . . . 9
5. WARNINGS
to avoid burnout or bad combustion of the
burner . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6. MAINTENANCE . . . . . . . . . . . . . . . . . . . 10
7. FAULTS / SOLUTIONS . . . . . . . . . . . . . . 11
1– Air-damper
2– Screws for fixing the air-damper
3– 7 pole socket for electrical supply
and control
4– 6 pole socket for gas train
5– Cable grommet
6– Screw for fixing the cover
7– Air pressure switch
8– Control box
9– Reset button with lock-out lamp
According to Directives: Electromagnetic Compatibility 2004/108/EC, Low Voltage 2006/95/EC and Machine 2006/
42/EC.
The burner is approved for intermittent operation as per Directive EN 676.
The burner meets protection level of IP X0D (IP 40), EN 60529.
Gas train according to EN 676.
NOTES
– The cable grommet (5) supplied with the burner, must be fitted to the same side of the gas train.
– After having installed the burner verify the access to the fixing screws of the cover.
If necessary replace them with the fixing screws (6, fig. 1) supplied as equipment.
Fig. 1
D11054
6 5 3
2
1
9
8
7
4
2

20039281 2 GB
2. TECHNICAL DATA
2.1 TECHNICAL DATA
For gas family 3 (LPG) ask for separate kit.
2.2 OVERALL DIMENSIONS
2.3 WORKING FIELD (as EN 676)
Thermal power (1) 42 – 116 kW - 36,000 – 100,000 kcal/h
Natural gas (Family 2) Net heat value: 8 – 12 kWh/Nm3-7,000 – 10,340 kcal/Nm3
Pressure: min. 16 mbar - max. 100 mbar
Electrical supply Single phase, 230V ±10% ~50Hz
Motor 230V / 0.7A
Capacitor 4 µF
Ignition transformer Primary 230V / 1.8A - Secondary 8 kV / 30 mA
Absorbed electrical power 0.13 kW
(1) Reference conditions: Temp. 20°C - Barometric pressure 1013 mbar – Altitude 0 m above sea level.
COUNTRY DE AT FR ES - GB-IE LU - PL NL
GAS CATEGORY II2ELL3B/P II2H3B/P II2Er3P II2H3P II2E3B/P II2L3B/P
O
Combustion head extension, supplied separately.
FlangeBurner
305 110 346 185
33 61
45°
ø
105
262
160
Rp 3/4
204
142
O
170
D4251
130
11
45°
Thermal power
D5256
0.8
0
0.2
0.4
0.6
40,000 50,000 60,000 70,000 kcal/h
1206050 70 80 kW
1.0
110
80,000
1.2
90 100
90,000
1.4
40
1.6
100,000
Pressure in the combustion
chamber – mbar

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TEST BOILER
The working field has been defined according to EN 676 standard.
COMMERCIAL BOILERS
The burner-boiler matching is assured if the boiler conforms to EN 303 and the combustion chamber dimensions
are similar to those shown in the diagram EN 676. For applications where the boiler does not conform to EN 303,
or where the combustion chamber is much smaller than the dimensions given in EN 676, please consult the
manufacturers.
CORRELATION BETWEEN GAS PRESSURE AND BURNER OUTPUT
To obtain the maximum output, a gas head pressure of 5.8 mbar is measured (M2, see chapter 3.3, page 4) with
the combustion chamber at 0 mbar using gas G20 with a net heat value of 10 kWh/Nm3(8,570 kcal/Nm3).
3. INSTALLATION
THE BURNER MUST BE INSTALLED IN CONFORMITY WITH LEGISLATION AND LOCAL STANDARDS.
3.1 BOILER FIXING
4
1
2
3
5
6
7
Gas pressure in the
combustion head – mbar
40,000 50,000 60,000 70,000 kcal/h
1206050 70 80 kW
Thermal power
D5257
110
80,000
90 100
90,000
40
100,000
S7392
HINGE
ASSEMBLY
13 2
AB
D5108
Boiler door must have a max. thickness of 90 mm,
refractory lining included.
If thickness is greater (max. 150 mm), a combustion
head extension must be fitted, which is supplied
separately.
IMPORTANT OSeparate the combustion-head assembly
from the burner body by removing nut (1) and
removing group (A).
OFix the head assembly group (B) to the boiler
(2) insert the supplied insulating gasket (3).

20039281 4 GB
3.2 PROBE - ELECTRODE POSITIONING
3.3 GAS FEEDING LINE
D5104
Ignition electrode
WARNING
2 – 3 mm
Ionization probe
Probe
Electrode
2.2
~
40 mm
Diffuser
=
=
1– Gas supply pipe
2– Manual cock (supplied by the installer)
3– Gas pressure gauge (supplied by the installer)
4– Filter
5– Gas pressure switch
6– Safety valve
7– Pressure governor
8– Adjustment valve
M1 – Gas-supply pressure test point
M2 – Pressure coupling test point
1
D5069
2 3 M1 4 5 6 7 8
M2

5 20039281
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3.4 ELECTRICAL WIRING
All the installation, maintenance and disassembly operations must be carried out with the electricity sup-
ply disconnected.
The burner requires periodic maintenance carried out by a qualified and authorised technician in con-
formity with legislation and local standards.
ATTENTION:
Do not swap neutral and phase over, follow the diagram shown carefully and carry out a good earth connection.
The section of the conductors must be at least 1mm². (Unless requested otherwise by local standards and legislation).
The electrical wiring carried out by the installer must be in compliance with the rules in force in the country.
Verify that the burner stops by operating the boiler control thermostats and that the burner locks out by separating the
red ionisation probe lead connector.
NOTES
The burners have been type-approved for intermittent operation. This means they must stop at least once every 24 hours in
order to allow the electrical control box to check its efficiency on start-up. The boiler limit thermostat (TL) normally ensures the
burner halts. If this does not happen a time switch halting the burner at least once every 24 hours must be applied in series to
limit thermostat (TL).
STANDARD ELECTRICAL WIRING (see page 13).
3.4.1 ELECTRICAL WIRING WITH GAS LEAK CONTROL DEVICE (DUNGS VPS 504)
4. WORKING
4.1 COMBUSTION ADJUSTMENT
In conformity with Efficiency Directive 92/42/EEC the application
of the burner on the boiler, adjustment and testing must be car-
ried out observing the instruction manual of the boiler, including
verification of the CO and CO2concentration in the flue gases,
their temperatures and the average temperature of the water in
the boiler.
To suit the required appliance output, choose the proper set-
ting of the combustion head, and the air damper opening.
WARNING
DANGER
KEY TO LAY-OUT
X6 – 6 pin plug
X7 – 7 pin plug
B4 – Working signal
h1 – Hour counter
PG – Minimum gas pressure
switch
S3 – Remote lock-out signal
(230V - 0.5 A max.)
T6A – Fuse
TL – Limit thermostat
TS – Safety thermostat
V10 – Safety valve
V11 – Adjustment valve
230V ~ 50Hz
D4199
TO BE DONE BY
THE INSTALLER
S7015
C
A
B

20039281 6 GB
4.2 COMBUSTION HEAD SETTING
Loose the screw (A), move the elbow (B) so that the rear plate of the coupling (C) coincides with the set point.
Tighten the screw (A).
Example:
The burner is installed on a 81 kW boiler
with an efficiency of 90%, the burner
input is about 90 kW using the diagram,
the combustion set point is 3.
The diagram is to be used only for initial
settings, to improve air pressure switch
operation or improve combustion, it may
be necessary to reduce this setting (set
point toward position 0).
4.3 AIR DAMPER SETTING
The regulation of the air-rate is made by adjusting the air damper (1), after
loosing the screws (2).
When the optimal regulation is reached, screw tight the screws (2).
4.4 COMBUSTION CHECK
It is advisable to set the burner according to the type of gas used and following the indications of the table:
EN 676 AIR EXCESS:
max. output λ≤1.2 – min. output λ≤1.3
GAS Theoretical max. CO2
0 % O2
Setting CO2% CO
mg/kWh
NOx
mg/kWh
λ= 1.2 λ= 1.3
G 20 11.7 9.7 9.0 ≤100 ≤170
G 25 11.5 9.5 8.8 ≤100 ≤170
G 30 14.0 11.6 10.7 ≤100 ≤230
G 31 13.7 11.4 10.5 ≤100 ≤230
01 32
120
90
80
70
60
50
100
80,000
70,000
60,000
50,000
40,000
kcal/h kW
D5258
45
40
110
90,000
100,000
Set point
1
D5231
2
2

7 20039281
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IONIZATION CURRENT
The minimum current necessary for the control box operation is 3 µA.
The burner normally supplies a higher current value, so that no check is needed. However, if you want to measure
the ionization current, you must open the connector fitted to the red wire and insert a microammeter.
4.5 AIR PRESSURE SWITCH
The air pressure switch is set after all other adjustments have been made. Begin with the switch at the lowest
setting. With the burner working at the minimum output, adjust the dial clockwise, increasing its value until
the burner shuts down. Now reduce the value by one set point, turning the dial anti-clockwise.
Check for reliable burner operation, if the burner shuts down, reduce the value by a half set point.
Attention:
To comply with the EN 676 standard, the air pressure switch must operate when the CO value exceeds 1%
(10,000 ppm). To check this, insert a combustion analyser in the flue, slowly reduce the burner air setting and ver-
ify that the burner shuts down by the action of the air pressure switch before the CO value exceeds 1%.
Probe
Connector
Terminal board
of control-box
D5006
10

20039281 8 GB
4.6 BURNER START-UP CYCLE
When flame-failure occurs during working, shut down takes place within one second.
4.7 START-UP CYCLE DIAGNOSTICS
During start-up, indication is according to the followin table:
COLOUR CODE TABLE
Sequences Colour code
Pre-purging           
Ignition phase           
Operation, flame ok            
Operating with weak flame signal.          
Electrical supply lower than ~170V           
Lock-out          
Extraneous light           
Index: Off  Yellow Green Red
S8271
AL - Error message (alarm)
BV - Fuel valve
FS - Flame signal
GP - Gas pressure switch
LP - Air pressure switch
LR - Load controller
M- Fan motor
R- Control thermostat / pressurestat
SB -Safetylimiter
W- Limit thermostat / pressure switch
Z- Ignition transformer
AStart command (switching on by «R»)
B-B´ Interval for establishment of flame
COperating position of burner reached
C-D Burner operation (generation of heat)
DControlled shutdown by «R»
Burner will immediately be shut down
Burner control will immediately be ready
for new startup