Riello RS 300/M BLU FS1 Quick start guide

Installation, use and maintenance instructions
20098208 (1) - 01/2015
Forced draught gas burner
Modulating operation
CODE MODEL TYPE
20098189 RS 300/M BLU FS1 98189X
GB

Original instructions

1
20098208
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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............................................................................................................... 7
4.4 Technical data............................................................................................................................................................. 8
4.5 Electrical data.............................................................................................................................................................. 8
4.6 Firing rate .................................................................................................................................................................... 8
4.7 Test boiler.................................................................................................................................................................... 9
4.8 Maximum dimensions.................................................................................................................................................. 9
4.9 Burner description..................................................................................................................................................... 10
4.10 Electrical panel description........................................................................................................................................ 11
4.10.1 Fan motor rotation..................................................................................................................................................... 11
4.11 Burner equipment...................................................................................................................................................... 11
4.12 Control box (LFL1.6...) .............................................................................................................................................. 12
4.13 Servomotor (SQM10.1....)......................................................................................................................................... 13
5 Installation ................................................................................................................................................................................ 14
5.1 Notes on safety for the installation............................................................................................................................ 14
5.2 Handling.................................................................................................................................................................... 14
5.3 Preliminary checks.................................................................................................................................................... 14
5.4 Operating position ..................................................................................................................................................... 15
5.5 Removal of the locking screws from the shutter........................................................................................................ 15
5.6 Preparing the boiler................................................................................................................................................... 15
5.6.1 Boring the boiler plate ............................................................................................................................................... 15
5.6.2 Blast tube length........................................................................................................................................................ 15
5.7 Securing the burner to the boiler............................................................................................................................... 16
5.8 Access to head internal part...................................................................................................................................... 16
5.9 Electrode pilot position.............................................................................................................................................. 17
5.10 Combustion head adjustment.................................................................................................................................... 17
5.11 Gas feeding............................................................................................................................................................... 18
5.11.1 Gas feeding line ........................................................................................................................................................ 18
5.11.2 Gas train.................................................................................................................................................................... 18
5.11.3 Gas train installation.................................................................................................................................................. 19
5.11.4 Gas pressure............................................................................................................................................................. 19
5.12 Electrical wiring ......................................................................................................................................................... 20
5.12.1 Supply cables and external connections passage .................................................................................................... 20
6 Start-up, calibration and operation of the burner ................................................................................................................. 21
6.1 Notes on safety for the first start-up.......................................................................................................................... 21
6.2 Adjustments prior to ignition...................................................................................................................................... 21
6.3 Burner start-up .......................................................................................................................................................... 21
6.4 Burner firing............................................................................................................................................................... 21
6.5 Servomotor adjustment............................................................................................................................................. 22
6.6 Air / fuel adjustment................................................................................................................................................... 22
6.6.1 Max output................................................................................................................................................................. 22
6.6.2 Min output.................................................................................................................................................................. 23
6.6.3 Intermediate outputs.................................................................................................................................................. 23

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Contents
6.7 Pressure switch adjustment.......................................................................................................................................23
6.7.1 Air pressure switch - check CO..................................................................................................................................23
6.7.2 Maximum gas pressure switch...................................................................................................................................24
6.7.3 Minimum gas pressure switch....................................................................................................................................24
6.8 Operation sequence of the burner .............................................................................................................................24
6.8.1 Burner start-up...........................................................................................................................................................24
6.8.2 Operation...................................................................................................................................................................25
6.8.3 Burner flame goes out during operation.....................................................................................................................25
6.8.4 Ignition failure.............................................................................................................................................................25
7 Maintenance ..............................................................................................................................................................................26
7.1 Notes on safety for the maintenance.........................................................................................................................26
7.2 Maintenance programme...........................................................................................................................................26
7.2.1 Maintenance frequency..............................................................................................................................................26
7.2.2 Checking and cleaning...............................................................................................................................................26
7.3 Opening the burner....................................................................................................................................................27
7.4 Closing the burner......................................................................................................................................................27
8 Faults - Probable causes - Solutions......................................................................................................................................28
A Appendix - Accessories ...........................................................................................................................................................31
B Appendix - Electrical panel layout...........................................................................................................................................32

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Declarations
1 Declarations
Declaration of conformity in accordance with ISO / IEC 17050-1
Manufacturer: RIELLO S.p.A.
Address: Via Pilade Riello, 7
37045 Legnago (VR)
Product: Forced draught gas burner
Model: RS 300/M BLU FS1
These products are in compliance with the following Technical Standards:
EN 676
EN 12100
and according to the European Directives:
MD 2006/42/EC Machine Directive
LVD 2006/95/EC Low Voltage Directive
EMC 2004/108/EC Electromagnetic Compatibility
The quality is guaranteed by a quality and management system certified in accordance with UNI EN ISO 9001.
Legnago, 03.09.2014 Executive General Manager
RIELLO S.p.A. - Burner Department Research & Development Director RIELLO S.p.A. - Burner Department
Mr. U. Ferretti Mr. R. Cattaneo

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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 may be present. An explosive atmos-
phere is defined as a mixture - under atmospheric
conditions - of air and flammable substances in
the form of gases, vapours, mist or dust in which,
after ignition 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.
OBLIGATION TO ASSEMBLE THE HOOD AND
ALL THE SAFETY AND PROTECTION DEVIC-
ES
This symbol signals the obligation to reassemble
the hood and all the safety and protection devices
of the burner after any maintenance, cleaning or
checking operations.
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.

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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 recom-
mends 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.

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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 pressureof 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.

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Technical description of the burner
4.1 Burner designation
4.2 Models available
Tab. A
4.3 Burner categories - Countries of destination
Tab. B
4 Technical description of the burner
Designation Voltage Start-up Code
RS 300/M BLU FS1 3/230-400/50 Direct 20098189
Class 3 EN267 - Class 3 EN676
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 300 M TC
Emission: C11 or... Class 1 EN267 - EN676
C11 or MZ Class 2 EN267 - EN676
C33 or BLU Class 3 EN267 - EN676
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
C11 or...
C13 Class 1 EN267 - Class 3 EN676
Gas category Destination country
I
2H
SE - FI - AT - GR - DK - ES - GB - IT - IE - PT - IS - CH - NO
I
2ELL
DE
I
2L
NL
I
2Er
FR
I
2E(R)B
BE
I
2E
LU - PL

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Technical description of the burner
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 of the pressure switch (20)(Fig. 4) 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.
4.5 Electrical data
Tab. D
4.6 Firing rate
The maximum output is chosen from within the diagram area
(Fig. 1).
The minimum output must not be lower than the minimum limit of
the diagram: 500 kW
Model RS 300/M BLU FS1
Power
(1)
Output
(1)
min - max kW 500/1350 ÷ 3800
Fuel Natural gas: G20 (methane gas) - G21 - G22 - G23 - G25
Gas pressure at max. output
(2)
-
Gas: G20/G25 mbar 23.3/32.7
Operation Intermittent
Standard applications Boilers: water, steam, diathermic oil
Ambient temperature °C 0 - 40
Combustion air temperature °C max 60
Protection level IP 54
Noise levels
(3)
dB(A) 82
Weight kg 225
Model RS 300/M BLU FS1
Main electrical supply 3N ~ 400V +/-10% 50 Hz
Fan motor IE2
rpm
V
kW
A
2900
230 / 400
4.5
15 / 8.7
Ignition transformer V1 - V2
I1 - I2 230 V - 1 x 8 kV 1 A - 20 mA
Absorbed electrical power kW max 5
WARNING
The firing rate value (Fig. 1) has been obtained
considering an ambient temperature of 20 °C, an
atmospheric pressure of 1013 mbar (approx. 0 m
a.s.l.), and with the combustion head adjusted as
shown on page 17.
Fig. 1
Combustion chamber
pressure - mbar
20061444
Thermal power – kW

9
20098208
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Technical description of the burner
4.7 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. 2).
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. 2 you can see the diameter and length ofthe test combus-
tion chamber.
Example:
Output 3000 kW - diameter 100 cm - length 4 m.
4.8 Maximum dimensions
The maximum dimensions of the burner are shown in Fig. 3.
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 L and R positions.
The l position is reference for the refractory thickness of the boiler
door.
Fig. 2
Combustion chamber
m
D2448
Fig. 3
20061413

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Technical description of the burner
4.9 Burner description
1 Lifting rings
2 Fan
3 Fan motor
4 Air damper servomotor
5 Combustion head gas pressure test point
6 Combustion head
7 Gas inlet pilot
8 Flame stability disc
9 Electrical panel casing
10 Hinge for opening the burner
11 Fan air inlet
12 Pipe coupling
13 Gasket for boiler fixing
14 Gas train adapter
15 Shutter
16 Combustion head movement lever
17 Air damper movement gears
18 Air pressure switch
19 Combustion head air pressure test point
20 Maximum gas pressure switch with pressure test point
21 pilot igniter
22 Pressure test point for air pressure switch “+”
23 Pressure test point for air pressure switch “-”
24 Gas butterfly valve control lever
25 Adjustable profile cam
26 Air damper control lever
27 UV sensor
28 Locking screws of the shutter during the transport (replace
them with the screws M12x16 supplied with the burner)
9117 116 19 615
8
11 10 20 14
24
5
21
25
13
23
12 26 18
22
4
2
3
27
7
28
28
Fig. 4
20098343
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.

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Technical description of the burner
4.10 Electrical panel description
1 Terminal board for kits
2 Clean contacts output relay
3 Ignition transformer
4 Bracket for application of output power regulator kit RWF40
5 Stop push-button
6 OFF-automatic-manual selector
7 Power increase - power reduction selector
8 Light signalling start-up enabling
9 Light signalling of motor thermal relay operation
10 Light signalling of burner lockout and reset switch
11 Electrical control box
12 Relay
13 Thermal relay
14 Air pressure switch
15 Main terminal supply board
16 Supply cables and external connections passage
17 Bracket for application of UV sensor kit
18 Auxiliary circuits fuse
19 Plug/socket servomotor
20 Main valve “ON/OFF”
Two types of burner lockout may occur:
➤Control box lockout: if the control box button (red led) 11)
Fig. 5) and the backlit button 10) light up, it indicates that the
burner is in lockout.
Release by pressing the pushbutton 10).
➤Motor lockout: release by pressing the button on thermal
relay.
4.10.1 Fan motor rotation
Place in front of the cooling fan of the fan motor and check that it
turns anticlockwise.
4.11 Burner equipment
Gasket for gas train adaptor. . . . . . . . . . . . . . . . . . . . . . . . No. 1
Adaptor for gas train. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Screws M12x16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 2
Screws M16x70 to fix the gas train adaptor . . . . . . . . . . . . No. 8
Thermal insulation screen . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Screws M18x60 to secure the burner flange to the boiler . No. 4
Cable grommets kit for optional electrical wiring input . . . . No. 1
Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
20061416
Fig. 5

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Technical description of the burner
4.12 Control box (LFL1.6...)
Warnings
➤All interventions (assembly and installation operations,
assistance, etc.) must be carried out by qualified personnel.
➤Before modifying the wiring in the control box connection
area, fully disconnect the system from the power supply
(omnipolar separation).
➤Protection against electrocution from the control box and all
connected electric components is obtained with the correct
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 control box must not be operated,
even if it displays no evident damage.
➤Do not press the reset button or the remote reset button of
the control box for more than 10 seconds because this will
damage the internal relay.
For the safety and reliability of the system, comply with the fol-
lowing instructions also:
– avoid conditions that can favour the development of conden-
sate and humidity. Otherwise, before switching on again,
make sure that the entire control box is perfectly dry!
– Static charges must be avoided since they can damage the
control box’s electronic components when touched.
Use
The control box is a control and supervision system of medium
and large capacity forced draft burners for intermittent operation
(at least one controlled shutdown every 24 hours).
Installation notes
• Check the electric wiring inside the boiler complies with the
national and local safety regulations.
• Do not confuse the powered conductors with the neutral
ones.
• Ensure that spliced wires cannot get into contact with neigh-
bouring terminals. Use adequate ferrules.
• Arrange the H.V. ignition cables separately, as far as possi-
ble from the control box and the other cables.
• When wiring the unit, make sure that AC 230 V mains voltage
cables are run strictly separate from extra low-voltage cables
to avoid risks of electrical shock hazard.
•
Technical data
Tab. E
Electrical wiring of the flame detector
It is important for signal transmission to be almost totally free
of any disturbances or loss:
• always separate the detector cables from the other cables:
– The capacitive reactanceof the line reduces the size of the
flame signal.
– Use a separate cable.
• Respect the allowed cable lengths.
• The ionisation probe is not protected against the risk of elec-
trocution. When connected to the electricity supply, the ioni-
sation probe must be protected against any accidental
contact.
• Position the ignition electrode and the ionisation probe so
that the ignition spark cannot form an arc on the probe (risk
of electric overcharge).
WARNING
To avoid accidents, material or environmental
damage, observe the following instructions!
The control box is a safety device! Avoid opening
or modifying it, or forcing its operation. Riello
S.p.A. cannot assume any responsibility for dam-
age resulting from unauthorised interventions!
Mains voltage AC 230V -15% / +10%
Mains frequency 50 / 60 Hz ±6 %
Fuse (Internal) T6.3H250V
Primary fuse (external) max. 10 A
Weight approx. 1 kg
Power absorption approx. AC 3.5 VA
Protection level IP40
Safety class II
Input current at terminal 1 max. 5 A continuous (peaks of
20 A / 20 ms)
Load on the control terminal max. 4 A continuous (peaks of
20 A / 20 ms)
Environmental conditions
Operation
Climatic conditions
Mechanical conditions
Temperature range
Humidity
DIN EN 60721-3-1
Class 1K3
Class 1M2
-20...+60°C
< 95% RH
Fig. 6
S8414

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Technical description of the burner
4.13 Servomotor (SQM10.1....)
Warnings
➤All interventions (assembly and installation operations,
assistance, etc.) must be carried out by qualified personnel.
➤Before modifying the wiring in the connection area of the
servomotor, fully disconnect the burner control device from
the power supply (omnipolar separation).
➤To avoid the risk of electrocution, protect the connection ter-
minals in a suitable manner and correctly fix the cover.
➤Check the wiring is in order.
➤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.
Assembly notes
• Check the relevant national safety standards are respected.
• During the assemblyof the servomotor and the connection of
the damper, the gears can be disengaged by means of a le-
ver, allowing the drive shaft to be easily adjusted in both ro-
tation directions.
Technical data
Tab. F
WARNING
To avoid accidents, material or environmental
damage, observe the following instructions!
Avoid opening, modifying or forcing the actua-
tors.
Operating voltage AC 220...240V, 50 Hz –15 % / +10 %
AC 220 V, 60 Hz –15 % / +10 %
Auxiliary and limit switch-
es switching capacity 10 (3) A, AC 24...250 V
Angular positioning up to 160 ° (base scale)
Assembly position optional
Protection level IP 54, DIN 40050
Safety class GB
Weight approx. 1.7 kg
Actuator motor synchronous motor
Power absorption 9 VA
Environmental conditions:
Operation
Climatic conditions
Mechanical conditions
Temperature range
Humidity
DIN EN 60 721-3-1
Class 1K3
Class 1M2
-20...+70°C
< 95% RH
Fig. 7
S8413

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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. 8) 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.
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-AEPIO X
RIELLOS.p.A.
I-37045Legnago(VR)
A
D E BC
F
I
G H
G H
Fig. 8
D10411

15
20098208
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. 11.
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. 12) 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. 12) 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. 9).
➤ 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. 9
2 3 4 51
D7739
WARNING
Remove the screws and the nuts 1)-2)(Fig. 10),
before installing the burner on the boiler.
Replace them with the screws 3) M12x16 supplied
with the burner.
1
2
1
2
3
3
Fig. 10
D12015
mm A B C
RS 300/M BLU FS1 350 452 M18
Fig. 11
D455

20098208
16
GB
Installation
5.7 Securing the burner to the boiler
➤ Fit the heat insulation supplied onto the blast tube 4)
(Fig. 12).
➤ Fit the entire burner onto the boiler hole prepared previously
(Fig. 11), and fasten with the screws supplied.
5.8 Access to head internal part
➤ Unhook the tie-rod 6)(Fig. 12) of the head movement lever,
removing the nut.
➤ Undo the self-locking nut 6)(Fig. 13) and unhook the tie-rod
7).
➤ Disconnect the socket 8) of the servomotor.
➤ Disconnect the socket 9) of the gas pressure switch.
➤ Remove the 4 fixing screws 1).
➤ Open the burner on the hinge as in Fig. 13.
➤ Unhook the probe cables and electrode 2).
➤ Turn the underneath part of the elbow 3) anticlockwise up to
release it from its housing.
➤ Undo the screw 4) with pressure test point.
➤ Remove the internal part of the head 5).
Prepare a suitable lifting system using rings
3)(Fig. 12).
WARNING
The seal between burner and boiler must be
airtight.
Fig. 12
20061417
1
1
3
49
82
5
6
7
Fig. 13
D8129

17
20098208
GB
Installation
5.9 Electrode pilot position
5.10 Combustion head adjustment
The air damper servomotor 4)(Fig. 4 on page 10), beyond vary-
ing the air output according to the output demand, through a lev-
erage varies the combustion head adjustment.
This system allows an optimum adjustment also at minimum fir-
ing rate.
Similarly to servomotor rotation, it is possible to vary the opening
of the combustion head moving the tie-rod on the holes (1-2-3),
(Fig. 16).
The selection of the hole (1-2-3) to be used is determined by the
diagram (Fig. 15) according to the maximum output requested. In
the factory, the hole is adjusted for the maximum stroke (hole 3).
In case in which, with boilers with high back pressure, also with
damper completely open, the air output is not enough, it is possi-
ble to carry out a calibration different to the one indicated by the
diagram (Fig. 15), moving the tie-rod on the following higher hole,
increasing the opening of the combustion head and the air output.
WARNING
Check that the electrode pilot is placed as in
Fig. 14, according to the dimensions indicated.
1 8
Fig. 14
20098345
Fig. 15
Max. burner output
No. Hole
20061419
0
1
2
3
4
6
3
2
14
Fig. 16
D3093
D3584
Fig. 17

20098208
18
GB
Installation
5.11 Gas feeding
5.11.1 Gas feeding line
Key (Fig. 18 - Fig. 19 - Fig. 20 - Fig. 21)
1 Gas input pipe
2 Manual valve
3 Vibration damping joint
4 Pressure gauge with pushbutton cock
5 Filter
6A Includes:
– filter
– working valve
– safety valve
– pressure adjuster
6B Includes
– working valve
– safety valve
– pressure adjuster
6C Includes
– safety valve
– working valve
6D Includes:
– safety valve
– working valve
7 Minimum gas pressure switch
8 Leak detection control, provided as an accessory or integrat-
ed, based on the gas train code. In compliance with the EN
676 standard, the leak detection control is compulsory for
burners with maximum outputs over 1200 kW.
9 Gasket, for “flanged” versions only
10 Pressure adjuster
11 Train-Burner adaptor, supplied separately
P2 Upline pressure of valves/adjuster
P3 Upstream pressure of the filter
L Gas train, supplied separately
L1 The responsibility of the installer
5.11.2 Gas train
Approved according to standard EN 676 and provided separately
from the burner.
To select the correct gas train model, refer to the supplied “Burn-
er-gas train combination” manual.
Explosion danger due to fuel leaks in the pres-
ence of a flammable source.
Precautions: avoid knocking, attrition, sparks and
heat.
Make sure that the fuel interception tap is closed
before performing any operation on the burner.
WARNING
The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.
L1 L
6A
P2
7
4
P3
3
2
1
8
Fig. 18
D11854
MBC “threaded”
LL1
P2 6B
7
9
8
4
P3
3
2
15
11
Fig. 19
D11855
MBC “flanged”
LL1
5
6C
P2
7
32
1
8
10
11
9
Fig. 20
D11856
DMV “flanged or threaded”
LL1
5
6D
P2
7
32
1
8
10
11
9
Fig. 21
D11857
CB “flanged or threaded”