Riello RS 810/M BLU Quick start guide

Installation, use and maintenance instructions
20160598 (8) - 07/2023
Forced draught gas burner
Modulating operation
CODE MODEL TYPE
20155846 RS 810/M BLU S032T
GB

Translation of the original instructions

1 20160598
GB
Contents
1 Declarations................................................................................................................................................................................ 3
2 Information and general warnings............................................................................................................................................ 4
2.1 Information about the instruction manual .................................................................................................................... 4
2.1.1 Introduction.................................................................................................................................................................. 4
2.1.2 General dangers.......................................................................................................................................................... 4
2.1.3 Other symbols ............................................................................................................................................................. 4
2.1.4 Delivery of the system and the instruction manual...................................................................................................... 5
2.2 Guarantee and responsibility....................................................................................................................................... 5
3 Safety and prevention................................................................................................................................................................ 6
3.1 Introduction.................................................................................................................................................................. 6
3.2 Personnel training ....................................................................................................................................................... 6
4 Technical description of the burner ......................................................................................................................................... 7
4.1 Burner designation ...................................................................................................................................................... 7
4.2 Models available.......................................................................................................................................................... 7
4.3 Burner categories - Countries of destination ............................................................................................................... 8
4.4 Technical data ............................................................................................................................................................. 8
4.5 Electrical data.............................................................................................................................................................. 8
4.6 Maximum dimensions.................................................................................................................................................. 9
4.7 Burner equipment........................................................................................................................................................ 9
4.8 Firing rates ................................................................................................................................................................ 10
4.9 Test boiler.................................................................................................................................................................. 10
4.10 Burner description ..................................................................................................................................................... 11
4.11 Electrical panel description........................................................................................................................................ 12
4.12 Flame control RMG88... ............................................................................................................................................ 13
4.13 Servomotor SQM41 .................................................................................................................................................. 14
4.14 Calibration of the thermal relay ................................................................................................................................. 14
5 Installation ................................................................................................................................................................................ 15
5.1 Notes on safety for the installation ............................................................................................................................ 15
5.2 Handling .................................................................................................................................................................... 15
5.3 Preliminary checks .................................................................................................................................................... 15
5.4 Operating position ..................................................................................................................................................... 16
5.5 Removal of the locking screws from the shutter........................................................................................................ 16
5.6 Preparing the boiler ................................................................................................................................................... 16
5.6.1 Boring the boiler plate ............................................................................................................................................... 16
5.6.2 Blast tube length........................................................................................................................................................ 16
5.7 Securing the burner to the boiler ............................................................................................................................... 17
5.8 Access to head internal part...................................................................................................................................... 17
5.9 Probe-electrode position ........................................................................................................................................... 17
5.10 Combustion head adjustment.................................................................................................................................... 18
5.11 Gas feeding ............................................................................................................................................................... 19
5.11.1 Gas feeding line (Example) - Please refer to the gas train documentation for more information.............................. 19
5.11.2 Gas train.................................................................................................................................................................... 20
5.11.3 Gas train installation.................................................................................................................................................. 20
5.11.4 Gas pressure............................................................................................................................................................. 20
5.12 Electrical wiring ......................................................................................................................................................... 21
5.12.1 Supply cables and external connections passage .................................................................................................... 21
6 Start-up, calibration and operation of the burner ................................................................................................................. 22
6.1 Notes on safety for the first start-up .......................................................................................................................... 22
6.2 Adjustments prior to ignition ...................................................................................................................................... 22
6.3 Burner start-up .......................................................................................................................................................... 22
6.4 Burner ignition ........................................................................................................................................................... 23

20160598 2 GB
Contents
6.5 Servomotor adjustment ..............................................................................................................................................23
6.6 Air / fuel adjustment ...................................................................................................................................................23
6.6.1 Burner adjustment......................................................................................................................................................24
6.6.2 Output upon ignition...................................................................................................................................................24
6.6.3 Maximum output ........................................................................................................................................................24
6.6.4 Minimum output .........................................................................................................................................................25
6.6.5 Intermediate outputs ..................................................................................................................................................25
6.7 Pressure switch adjustment .......................................................................................................................................26
6.7.1 Air pressure switch - check CO..................................................................................................................................26
6.7.2 Maximum gas pressure switch...................................................................................................................................26
6.7.3 Minimum gas pressure switch....................................................................................................................................26
6.8 Operation sequence of the burner .............................................................................................................................27
6.8.1 Burner start-up ...........................................................................................................................................................27
6.8.2 Operation ...................................................................................................................................................................27
6.8.3 Ignition failure.............................................................................................................................................................27
6.8.4 Burner flame goes out during operation.....................................................................................................................27
6.9 Burner start-up cycle diagnostics...............................................................................................................................28
6.9.1 Resetting of flame control and diagnostics use .........................................................................................................28
6.9.2 flame control reset .....................................................................................................................................................28
6.9.3 Visual diagnostics ......................................................................................................................................................28
6.9.4 Software diagnostics ..................................................................................................................................................28
6.10 Normal operation / flame detection time ....................................................................................................................29
7 Maintenance ..............................................................................................................................................................................30
7.1 Notes on safety for the maintenance .........................................................................................................................30
7.2 Maintenance programme ...........................................................................................................................................30
7.2.1 Maintenance frequency..............................................................................................................................................30
7.2.2 Safety test - with gas feeding closed .........................................................................................................................30
7.2.3 Checking and cleaning...............................................................................................................................................30
7.2.4 Safety components ....................................................................................................................................................31
7.3 Opening the burner ....................................................................................................................................................31
7.4 Closing the burner......................................................................................................................................................31
8 Faults - Probable causes - Solutions ......................................................................................................................................32
A Appendix - Accessories ...........................................................................................................................................................34
B Appendix - Electrical panel layout...........................................................................................................................................36

3 20160598
GB
Declarations
1 Declarations
Manufacturer's Declaration
RIELLO S.p.A. declares that the following products comply with the NOx emission limits specified by German standard “1. BIm-
SchV revision 26.01.2010”.
Product Model Type Output
Forced draught gas burner RS 810/M BLU S032T 1200 - 8000 kW

20160598 4 GB
Information and general warnings
2.1 Information about the instruction manual
2.1.1 Introduction
The instruction manual supplied with the burner:
is an integral and essential part of the product and must not
be separated from it; it must therefore be kept carefully for
any necessary consultation and must accompany the burner
even if it is transferred to another owner or user, or to
another system. If the manual is lost or damaged, another
copy must be requested from the Technical Assistance Ser-
vice of the area;
is designed for use by qualified personnel;
offers important indications and instructions relating to the
installation safety, start-up, use and maintenance of the
burner.
Symbols used in the manual
In some parts of the manual you will see triangular DANGER
signs. Pay great attention to these, as they indicate a situation of
potential danger.
2.1.2 General dangers
The dangers can be of 3 levels, as indicated below.
2.1.3 Other symbols
Abbreviations used
Ch. Chapter
Fig. Figure
Page Page
Sec. Section
Tab. Table
2 Information and general warnings
DANGER
Maximum danger level!
This symbol indicates operations which, if not car-
ried out correctly, cause serious injury, death or
long-term health risks.
WARNING
This symbol indicates operations which, if not car-
ried out correctly, may cause serious injury, death
or long-term health risks.
CAUTION
This symbol indicates operations which, if not car-
ried out correctly, may cause damage to the ma-
chine and/or injury to people.
DANGER
DANGER: LIVE COMPONENTS
This symbol indicates operations which, if not car-
ried out correctly, lead to electric shocks with le-
thal consequences.
DANGER: FLAMMABLE MATERIAL
This symbol indicates the presence of flammable
materials.
DANGER: BURNING
This symbol indicates the risks of burns due to
high temperatures.
DANGER: CRUSHING OF LIMBS
This symbol indicates the presence of moving
parts: danger of crushing of limbs.
WARNING: MOVING PARTS
This symbol indicates that you must keep limbs
away from moving mechanical parts; danger of
crushing.
DANGER: EXPLOSION
This symbol signals places where an explosive at-
mosphere is present. An explosive atmosphere is
defined as a mixture of dangerous substances
with air, under atmospheric conditions, in the form
of gases, vapours, mist or dust in which, after ig-
nition has occurred, combustion spreads to the
entire unburned mixture.
PERSONAL PROTECTION EQUIPMENT
These symbols indicate the equipment that must
be worn and kept by the operator for protection
against threats against safety and/or health while
at work.
MOUNT CASING
This symbol indicates that it is mandatory to
mount casing again after maintenance, cleaning
or checks.
ENVIRONMENTAL PROTECTION
This symbol gives indications for the use of the
machine with respect for the environment.
IMPORTANT INFORMATION
This symbol indicates important information that
you must bear in mind.
This symbol indicates a list.

5 20160598
GB
Information and general warnings
2.1.4 Delivery of the system and the instruction
manual
When the system is delivered, it is important that:
the instruction manual is delivered to the user by the system
manufacturer, with the recommendation to keep it in the
room where the heat generator is to be installed.
The instruction manual shows:
–the serial number of the burner;
–the address and telephone number of the nearest Assis-
tance Centre.
The system supplier must carefully inform the user about:
–the use of the system;
–any further tests that may be required before activating the
system;
–maintenance, and the need to have the system checked at
least once a year by a representative of the manufacturer
or another specialised technician. To ensure a periodic
check, the manufacturer recommends the drawing up of a
Maintenance Contract.
2.2 Guarantee and responsibility
The manufacturer guarantees its new products from the installa-
tion date, in accordance with the regulations in force and/or the
sales contract. At the moment of the first start-up, check that the
burner is integral and complete.
In particular, the rights to the guarantee and the responsibility will
no longer be valid, in the event of damage to things or injury to
people, if such damage/injury was due to any of the following
causes:
incorrect installation, start-up, use and maintenance of the
burner;
improper, incorrect or unreasonable use of the burner;
intervention of unqualified personnel;
carrying out of unauthorised modifications on the equipment;
use of the burner with safety devices that are faulty, incor-
rectly applied and/or not working;
installation of untested supplementary components on the
burner;
powering of the burner with unsuitable fuels;
faults in the fuel supply system;
use of the burner even following an error and/or an irregular-
ity;
repairs and/or overhauls incorrectly carried out;
modification of the combustion chamber with inserts that
prevent the regular development of the structurally estab-
lished flame;
insufficient and inappropriate surveillance and care of those
burner components most likely to be subject to wear and
tear;
the use of non-original components, including spare parts,
kits, accessories and optional;
force majeure.
The manufacturer furthermore declines any and every re-
sponsibility for the failure to observe the contents of this
manual.
.........................................................................................
.........................................................................................
.........................................................................................
.........................................................................................
WARNING
Failure to observe the information given in this
manual, operating negligence, incorrect installa-
tion and carrying out of non authorised modifica-
tions will result in the annulment by the
manufacturer of the guarantee that it supplies with
the burner.

20160598 6 GB
Safety and prevention
3.1 Introduction
The burners have been designed and built in compliance with
current regulations and directives, applying the known technical
rules of safety and envisaging all the potential danger situations.
It is necessary, however, to bear in mind that the imprudent and
clumsy use of the equipment may lead to situations of death risk
for the user or third parties, as well as the damaging of the burner
or other items. Inattention, thoughtlessness and excessive confi-
dence often cause accidents; the same applies to tiredness and
sleepiness.
It is a good idea to remember the following:
The burner must only be used as expressly described. Any
other use should be considered improper and therefore dan-
gerous.
In particular:
it can be applied to boilers operating with water, steam, diather-
mic oil, and to other users expressly named by the manufacturer;
the type and pressure of the fuel, the voltage and frequency of the
electrical power supply, the minimum and maximum deliveries for
which the burner has been regulated, the pressurisation of the
combustion chamber, the dimensions of the combustion cham-
ber and the room temperature must all be within the values indi-
cated in the instruction manual.
Modification of the burner to alter its performance and desti-
nations is not allowed.
The burner must be used in exemplary technical safety con-
ditions. Any disturbances that could compromise safety must
be quickly eliminated.
Opening or tampering with the burner components is not
allowed, apart from the parts requiring maintenance.
Only those parts envisaged by the manufacturer can be
replaced.
3.2 Personnel training
The user is the person, body or company that has acquired the
machine and intends to use it for the specific purpose. He is re-
sponsible for the machine and for the training of the people work-
ing around it.
The user:
undertakes to entrust the machine exclusively to suitably
trained and qualified personnel;
undertakes to inform his personnel in a suitable way about
the application and observance of the safety instructions.
With that aim, he undertakes to ensure that everyone knows
the use and safety instructions for his own duties;
Personnel must observe all the danger and caution indica-
tions shown on the machine.
Personnel must not carry out, on their own initiative, opera-
tions or interventions that are not within their province.
Personnel must inform their superiors of every problem or
dangerous situation that may arise.
The assembly of parts of other makes, or any modifications,
can alter the characteristics of the machine and hence com-
promise operating safety. The manufacturer therefore
declines any and every responsibility for any damage that
may be caused by the use of non-original parts.
In addition:
3 Safety and prevention
WARNING
The manufacturer guarantees safety and proper
functioning only if all burner components are intact
and positioned correctly.
the user must take all the measures neces-
sary to prevent unauthorised people gaining
access to the machine;
the user must inform the manufacturer if
faults or malfunctioning of the accident pre-
vention systems are noticed, along with any
presumed danger situation.
Personnel must always use the personal pro-
tective equipment envisaged by legislation
and follow the indications given in this man-
ual.

7 20160598
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Technical description of the burner
4.1 Burner designation
4.2 Models available
Tab. A
4 Technical description of the burner
Designation Voltage Start-up Code
RS 810/M BLU 3/400/50 Star/Delta 20155846
Range: R
Size
Fuel: Natural gas
Light oil
Light oil / Methane
Adjustment:
Flame control system:
FS1
FS2
Standard (1 stop every 24h)
Continuous operation (1 stop every 72h)
Electrical supply of the system:
3/400/50
3/230/50
Voltage of auxiliaries:
230/50/60
110/50/60
R S 800 M TC FS1 3/400/50 230/50/60
BASIC DESIGNATION
EXTENDED DESIGNATION
BLU
3N / 400V / 50Hz
3 / 230V / 50Hz
230V / 50-60Hz
110V / 50-60Hz
Heavy oil
E Electronic cam
EV Electronic cam with variable speed (with Inverter)
P Proportional air/gas valve
BP Two stage (light oil) / Proportional valve (gas)
M Mechanical cam
S
L
LS
N
Head: TC Standard head
TL Long head
Class 3 EN676
Emission: C01 or... Class 1 EN676
C02 or MZ Class 2 EN676
C03 or BLU Class 3 EN676
C03 or MX
C05 Class 5 EN676 (NOx < 56 mg/kWh)

20160598 8 GB
Technical description of the burner
4.3 Burner categories - Countries of destination
Tab. B
4.4 Technical data
Tab. C
(1) Reference conditions: Ambient temperature 20°C - Gas temperature 15°C - Barometric pressure 1013 mbar - Altitude 0 m a.s.l.
(2) Pressure at the test point 21)(Fig. 4 on page 11) with zero pressure in the combustion chamber and at maximum burner output.
(3) Sound pressure measured in manufacturer's combustion laboratory, with burner operating on test boiler and at maximum rated output. The sound
power is measured with the “Free Field” method, as per EN 15036, and according to an “Accuracy: Category 3” measuring accuracy, as set out in
EN ISO 3746.
4.5 Electrical data
Tab. D
Gas category Destination country
I2ELL DE
I2H AT-BG-CH-CZ-DK-EE-ES-FI-GB-GR-HU-HR-IE-IS-IT-LT-LV-NO-PT-
RO-SE-SI-SK-TR
I2Er FR
I2E LU - PL
I2E(R) BE
I2EK NL
Model RS 810/M BLU
Power (1)
Output (1)
min -
max kW 1200/3500 ÷ 8100
Fuels Natural gas: G20 (methane gas) - G25
Gas pressure at max. output (2) -
Gas: G20/G25 mbar 49.7/73
Operation Intermittent
Standard applications Boilers: water, steam, diathermic oil
Ambient temperature °C 0 - 40
Combustion air temperature °C max 60
Burner weight Kg 300
Noise levels (3) Sound pressure
Sound power dB(A) 88.3
103.00
CE N. CE-0123CU1067
Model RS 810/M BLU
Main electrical supply 3N ~ 400V +/-10% 50 Hz
Fan motor IE3
rpm
V
kW
A
2950
400/690
22
39.4/22.7
Ignition transformer V1 - V2
I1 - I2
230 V - 1 x 8 kV
1 A - 20 mA
Absorbed electrical power kW max 24,5
Protection level IP 54

9 20160598
GB
Technical description of the burner
4.6 Maximum dimensions
The maximum dimensions of the burner are shown in Fig. 1.
Bear in mind that inspection of the combustion head requires the
burner to be opened and the rear part turned on the hinge.
The maximum dimensions of the open burner are indicated by
the A and R positions.
The l position is reference for the refractory thickness of the boiler
door.
Tab. E
4.7 Burner equipment
Thermal insulation screen . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Gasket for gas train . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 2
M 12 x 16 replacement screws to secure the combustion head. . No. 2
M18 x 70 screws to secure the burner to the boiler . . . . . . No. 4
 18 washer to secure the burner to the boiler . . . . . . . . . No. 4
M16 x 67 stud bolts to fix the gas elbow to the
pipe coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 8
M16 nuts to fix the gas elbow to the pipe coupling. . . . . . . No. 8
 16 washer to secure the gas flange . . . . . . . . . . . . . . . . No. 8
Pressure kit switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Fig. 1
P T
I
D
N
E
S
FC
MG
O
L
O
200
H
A
R
R
A
20161935
mm A C D E F G I L M N P R S T
RS 810/M BLU 1197 173 363 585 DN80 577 405 990 413 260 1345 1055 420 558
WARNING
It is recommended to tighten the screws of the gas
flange with a tightening torque of 40 Nm ±10%.
Tighten the nuts gradually (first to 30%, then to
60% up to 100%) according to the cross pattern
shown in the figure.
S10230

20160598 10 GB
Technical description of the burner
4.8 Firing rates
The MAXIMUM OUTPUT is chosen from within the diagram area
(Fig. 2).
The MINIMUM OUTPUT must not be lower than the minimum
limit of the diagram:
4.9 Test boiler
The burner/boiler combination does not pose any problems if the
boiler is EC approved and its combustion chamber dimensions
are similar to those indicated in the diagram (Fig. 3).
If the burner must be combined with a boiler that has not been EC
approved and/or its combustion chamber dimensions are clearly
smaller than those indicated in the diagram, consult the manufac-
turer.
The firing rates were obtained in special test boilers, according to
EN 676 regulations.
In Fig. 3 you can see the diameter and length of the test combus-
tion chamber.
Example:
Output 7000 kW - diameter 120 cm - length 6 m.
Model kW
RS 810/M BLU 1200
WARNING
The firing rate value (Fig. 2) has been obtained
considering an ambient temperature of 20C, an
atmospheric pressure of 1013 mbar (approx. 0 m
a.s.l.), and with the combustion head adjusted as
shown on page 18.
Thermal power – kW Fig. 2
Combustion chamber
pressure - mbar















                  
20161991
Fig. 3
Combustion chamber
m
D2448

11 20160598
GB
Technical description of the burner
4.10 Burner description
1 Lifting rings
2 Cover for electrical panel
3 Lever for combustion head movement
4 Air pressure test point for combustion head
5 Combustion head
6 Shutter
7 Flame stability disc
8 Gas inlet flange
9 Maximum gas pressure switch
10 Lever for gas butterfly valve control
11 Hinge for burner opening
12 Adjustable profile cam
13 Air inlet for fan
14 Air damper control lever
15 Protection for viewing port
16 Reset button
17 Ignition electrode
18 Flame sensor probe
19 Fan motor
20 Gasket for boiler fixing
21 Gas pressure test point for combustion head
22 Pipe coupling
23 Air pressure test point for combustion head
24 Pressure test point for air pressure switch “+”
25 Air pressure switch
26 Fan
27 Servomotor for air dampers
Fig. 4
11
23456
7
10 8
9
11
12
13
14
15
16 17 18
19
20 23
21 22 25
27 26
24
20162042
CAUTION
The burner can be opened to the right or to the left
without links to the fuel supply side.
When the burner is closed, the hinge can be refit-
ted on the opposite side.

20160598 12 GB
Technical description of the burner
4.11 Electrical panel description
1 Ignition transformer
2 Burner state indicator light and reset button. For further
information see section “Burner ignition” on page 23
3 OFF-automatic-manual selector
4 Flame control
5 Power increase - power reduction selector
6 Earth terminal
7 Air pressure switch
8 Bracket for applying the kits
9 Relay with clean contacts for signalling the burner
is operating
10 Relay with clean contacts for signalling the burner
is in lockout
11 Auxiliary circuits fuse (includes a spare fuse)
12 Timer for star/triangle start up
13 Main terminal supply board
14 Supply cables and external connections passage.
See section “Electrical wiring” on page 21
15 Motor cables sheath
16 Maximum gas pressure switch sheath
17 Servomotor sheath
18 Direct start up line contactor
19 Thermal relay (with reset button)
20 Triangle contactor (Star/triangle start up)
21 Star contactor (Star/triangle start up)
22 Auxiliary contacts (Star/triangle start up)
23 Ionisation probe cable
24 Star/triangle start-up line contactor
25 Suppressor
Fig. 5
1
2
3
4
5
6
6
7
8
13
12
14
14
15
18
19
20
21
22
23
24
6
6
6
9
10
11
16
17
20162523

13 20160598
GB
Technical description of the burner
4.12 Flame control RMG88...
Warnings
All interventions (assembly and installation operations,
assistance, etc.) must be carried out by qualified personnel.
Before modifying the wiring in the flame control connection
area, fully disconnect the system from the power supply
(omnipolar separation). Check the system is not powered
and cannot be accidentally reconnected. Failure to do this
will lead to the risk of electrocution.
Protection against electrocution from the flame control and
all connected electric components is obtained with the cor-
rect assembly.
Before any intervention (assembly and installation opera-
tions, assistance, etc.), ensure the wiring is in order and that
the parameters are correctly set, then make the safety
checks.
Falls and collisions can negatively affect the safety func-
tions.
In this case, the flame control must not be operated, even if
it displays no evident damage.
Press the reset button of the burner lockout command or the
reset button (by applying a force of not more than 10 N),
without the aid of tools or sharp objects.
For the safety and reliability of the flame control, comply with
the following instructions:
– avoid conditions that can favour the development of conden-
sate and humidity. Otherwise, before switching on again,
make sure that the entire flame control is perfectly dry!
– Static charges must be avoided since they can damage the
flame control’s electronic components when touched.
Technical data
Mechanical structure
The flame control is made of plastic to resist knocks, heat and
flame propagation.
The flame control contains the following components:
• a microprocessor that controls the program sequence, and a
relay for controlling the load
• an electronic flame signal amplifier
• a built-in reset button with 3 signalling colours (LED) for status
and error messages.
WARNING
To avoid accidents, material or environmental
damage, observe the following instructions!
The flame control RMG88... is a safety device!
Avoid opening or modifying it, or forcing its opera-
tion. Riello S.p.A. cannot assume any responsibil-
ity for damage resulting from unauthorised
interventions!
Mains voltage AC 220...240 V +10 % / -15 %
Mains frequency 50 / 60 Hz ±6%
Power absorption 20 VA
Protection level IP20
Safety class I
Weight approx. 260g
Cable length
Thermostat cable
Air pressure switch
Gas pressure switch
Remote reset
CPI
Max. 20 m at 100 pF/m
Max. 1 m at 100 pF/m
Max. 20 m at 100 pF/m
Max. 20 m at 100 pF/m
Max. 1 m at 100 pF/m
Environmental conditions:
Operation
Climatic conditions
Mechanical conditions
Temperature range
Humidity
DIN EN 60721-3-3
Class 3K3
Class 3M3
-20...+60°C
< 95 % r.h.
Fig. 6
S8906

20160598 14 GB
Technical description of the burner
4.13 Servomotor SQM41 ...
Warnings
All interventions (assembly and installation operations,
assistance, etc.) must be carried out by qualified personnel.
Falls and collisions can negatively affect the safety func-
tions. In this case, the servomotor must not be operated,
even if it displays no evident damage.
Fully disconnect the burner from the mains when working
near terminals and servomotor connections.
Condensation and exposure to water are not allowed.
For safety reasons, the servomotor must be checked after
long periods of non-use.
•
Technical data
Tab. F
4.14 Calibration of the thermal relay
The thermal relay serves to avoid damage to the motor due to an
excessive absorption increase or if a phase is missing.
For calibration 2), see the table in the wiring diagram.
To reset, in case of an intervention of the thermal relay, press the
“RESET” button 1) of Fig. 8.
The red “TEST” button 3) opens the NC (95-96) contact and
stops the motor.
WARNING
To avoid accidents, material or environmen-
tal damage, observe the following instruc-
tions!
Avoid opening, modifying or forcing the ser-
vomotor.
Mains voltage 230 V -15% +10%
Mains frequency 50 / 60 Hz
Power absorption 7 ... 15 VA
Motor Synchronous
Drive angle Varying between 0° and 135°
WARNING
Absolutely do not adjust the red cam No. 1 more
than 90° to prevent serious or irreversible damage
to the mechanical adjustment parts.
Protection level Max. IP 66, with appropriate cable
entry
Cable entry 2 x M16
Cable connection terminal board for 0.5mm2 (min.)
and 2.5mm2 (max.)
Rotation direction Clockwise
Rated torque (max.) 10 Nm
Holding torque 5 Nm
Operation time 30 s. at 90°
Weight approx. 2 kg
Environmental conditions:
Operation
Transport and storage
-20....+60° C
-20...+60°C
Fig. 7
S8907
CAUTION
The automatic reset can be dangerous. This oper-
ation is not foreseen in the burner operation.
Therefore do not position the “RESET” button
1) on “A”.
3
1
2
RESET
HA
TEST
95 96 97 98
Fig. 8
20073932

15 20160598
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Installation
5.1 Notes on safety for the installation
After carefully cleaning all around the area where the burner will
be installed, and arranging the correct lighting of the environ-
ment, proceed with the installation operations.
5.2 Handling
The packaging of the burner includes a wooden platform, so it is
possible to move the burner (still packaged) with a transpallet
truck or fork lift truck.
5.3 Preliminary checks
Checking the consignment
Checking the characteristics of the burner
Check the identification label of the burner, showing:
the model (A) (Fig. 9) and type of burner (B);
the year of manufacture, in cryptographic form (C);
the serial number (D);
the data for electrical supply and the protection level (E);
the absorbed electrical power (F);
the types of gas used and the relative supply pressures (G);
the data of the burner's minimum and maximum output pos-
sibilities (H) (see Firing rate)
Warning. The burner output must be within the boiler's firing
rate;
the category of the appliance/countries of destination (I).
5 Installation
DANGER
All the installation, maintenance and disassembly
operations must be carried out with the electricity
supply disconnected.
WARNING
The installation of the burner must be carried out
by qualified personnel, as indicated in this manual
and in compliance with the standards and regula-
tions of the laws in force.
DANGER
Combustion air inside the boiler must be free from
hazardous mixes (e.g.: chloride, fluoride, halo-
gen); if present, it is highly recommended to carry
out cleaning and maintenance more frequently.
WARNING
The handling operations for the burner can be
highly dangerous if not carried out with the great-
est attention: keep any unauthorised people at a
distance; check the integrity and suitableness of
the available means of handling.
Check also that the area in which you are working
is empty and that there is an adequate escape
area (i.e. a free, safe area to which you can quick-
ly move if the burner should fall).
When handling, keep the load at not more than
20-25 cm from the ground.
After positioning the burner near the installation
point, correctly dispose of all residual packaging,
separating the various types of material.
CAUTION
Before proceeding with the installation operations,
carefully clean all around the area where the burn-
er will be installed.
Release the burner from the wooden platform by
removing the bolts/nuts/screws that secure the
burner to the platform. Handle the burner following
the safety standards and regulations of the laws in
force and using the eyebolts supplied as equip-
ment.
CAUTION
After removing all the packaging, check the integ-
rity of the contents. In the event of doubt, do not
use the burner; contact the supplier.
The packaging elements (wooden cage or card-
board box, nails, clips, plastic bags, etc.) must not
be abandoned as they are potential sources of
danger and pollution; they should be collected and
disposed of in the appropriate places.
WARNING
A burner label, or any other component, that has
been tampered with, removed or is missing, pre-
vents the definite identification of the burner and
makes any installation or maintenance work diffi-
cult.
R.B.L.
GAS- KAASU
GAZ- AEPI O
X
RIELLO S.p .A.
I-37045 Legnago (VR)
A
DE
BC
F
I
G H
G H
Fig. 9
D10411

20160598 16 GB
Installation
5.4 Operating position
5.5 Removal of the locking screws from the shutter
5.6 Preparing the boiler
5.6.1 Boring the boiler plate
Pierce the closing plate of the combustion chamber, as in Fig. 12.
The position of the threaded holes can be marked using the ther-
mal insulation screen supplied with the burner.
5.6.2 Blast tube length
The length of the blast tube must be selected according to the in-
dications provided by the manufacturer of the boiler, and in any
case it must be greater than the thickness of the boiler door com-
plete with its refractory.
For boilers with front flue passes 1)(Fig. 13) or flame inversion
chamber, a protection in refractory material 5) must be inserted
between the boiler fettling 2) and the flame funnel 4).
This protection must not compromise the extraction of the blast
tube.
For boilers with a water-cooled frontpiece, a refractory lining 2)-
5)(Fig. 13) is not necessary, unless expressly requested by the
boiler manufacturer.
Tab. G
WARNING
The burner is designed to operate only in
positions 1, 2, 3 and 4 (Fig. 10).
Installation 1 is preferable, as it is the only
one that allows the maintenance operations
as described in this manual.
Installations 2, 3 and 4 permit operation but
make maintenance and inspection of the
combustion head more difficult.
DANGER
Any other position could compromise the cor-
rect operation of the appliance.
Installation 5 is prohibited for safety reasons.
Fig. 10
2 3 4 51
D7739
WARNING
Remove the screws and the nuts 1)-2)(Fig. 11),
before installing the burner on the boiler.
Replace them with the screws 3) M12 X 16 sup-
plied with the burner.
1
2
1
2
3
3
Fig. 11
D12015
mm D1 DF 
RS 810/M BLU 400 495 M18
Fig. 12
Ø
45
45
DF
D1
20149117

17 20160598
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Installation
5.7 Securing the burner to the boiler
Fit the heat insulation supplied onto the blast tube
4)(Fig. 13).
Fit the entire burner onto the boiler hole prepared previously
(Fig. 12), and fasten with the screws supplied.
5.8 Access to head internal part
Unhook the tie-rod 1)(Fig. 13) of the gas butterfly valve
movement lever, removing the nut.
Disconnect the socket 2) of the gas pressure switch.
Remove the 4 fixing screws 3).
Open the burner on the hinge as in Fig. 14.
Unhook the probe cables and electrode 4).
Turn the underneath part of the elbow 5) anticlockwise up to
release it from its housing.
Undo the screw 6) with pressure test point.
Remove the internal part of the head 7).
5.9 Probe-electrode position
Prepare a suitable lifting system using rings
3)(Fig. 13).
WARNING
The seal between burner and boiler must be
airtight.
Fig. 13
1
1
2
5
3
4
3
20162054
Fig. 14
1
2
45
7
3
6
20162059
WARNING
Check that the probe and the electrode are placed
as in Fig. 15, according to the dimensions indicat-
ed.
Fig. 15
ProbeElectrode
8
18.5
20162129

20160598 18 GB
Installation
5.10 Combustion head adjustment
In order to optimise performance, the burner is equipped with a
variable geometry combustion head which operates on the basis
of the delivered output.
According to the same rotation of the air servomotor, it is possible
to change the combustion head opening by moving the
lever 2)(Fig. 16) on the holes (1-2-3-4-5-6), after loosening the
screw 1). The choice of the hole (1-2-3-4-5-6) to use is based on
the following table, according to the required output.
These output values may not match with the actual values as the
combustion conditions change according to the plant.
The factory regulation corresponds to the minimum output (cou-
pling position: 1).
Tab. H
Coupling position Output (kW)
3 3500
4 4333
5 5166
6 6000
6 8010
Fig. 16
6
5
4
3
2
1
0
1
2
20162133
Fig. 17
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20166577
Output (kW)
Combustion head