Riello RX 700 S/PV Quick start guide

Installation, use and maintenance instructions
20079424 (2) - 10/2013
Premixed gas burners
Progressive two-stage or modulating operation
CODE MODEL TYPE
20074586 RX 700 S/PV 854T3
20074219 RX 850 S/PV 926T1
20050087 RX 1000 S/PV 891T3
GB
RX

Translation of the original instructions

1 20079424
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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 Models available............................................................................................................................................................. 7
4.2 Burner categories - Countries of destination .................................................................................................................. 7
4.3 Technical data ................................................................................................................................................................ 7
4.4 Burner weight.................................................................................................................................................................. 7
4.5 Maximum dimensions..................................................................................................................................................... 8
4.6 Burner description........................................................................................................................................................... 9
4.7 Burner equipment........................................................................................................................................................... 9
4.8 Firing rates.................................................................................................................................................................... 10
4.8.1 Test boiler..................................................................................................................................................................... 11
4.8.2 Commercial boilers....................................................................................................................................................... 11
4.9 Burner controls (LME71...)............................................................................................................................................ 12
4.9.1 Indication of diagnostics mode ..................................................................................................................................... 17
5 Installation ................................................................................................................................................................................ 18
5.1 Notes on safety for the installation................................................................................................................................ 18
5.2 Handling........................................................................................................................................................................ 18
5.3 Preliminary checks........................................................................................................................................................ 18
5.4 Operating position......................................................................................................................................................... 19
5.5 Preparing the boiler ...................................................................................................................................................... 19
5.5.1 Boring the boiler plate................................................................................................................................................... 19
5.5.2 Head length .................................................................................................................................................................. 19
5.6 Securing the burner to the boiler .................................................................................................................................. 20
5.7 Fuel supply ................................................................................................................................................................... 21
5.7.1 Gas train....................................................................................................................................................................... 21
5.8 Electrical wiring............................................................................................................................................................. 22
5.8.1 Supply cables and external connections passage........................................................................................................ 23
5.8.2 Opening sequence of the fuse-holder........................................................................................................................... 24
6 Start-up, calibration and operation of the burner ................................................................................................................. 25
6.1 Notes on safety for the first start-up.............................................................................................................................. 25
6.2 Adjustments before first firing....................................................................................................................................... 25
6.3 Burner start-up.............................................................................................................................................................. 25
6.3.1 Gas valve adjustment................................................................................................................................................... 25
6.4 Fan adjustment............................................................................................................................................................. 26
6.5 Burner shut down.......................................................................................................................................................... 26
6.6 Gas valve adjustment................................................................................................................................................... 28
6.7 Burner adjustment ........................................................................................................................................................ 28
6.7.1 Optimum calibration values .......................................................................................................................................... 29
6.8 Check of modulating operation..................................................................................................................................... 29
6.8.1 Display of preset output................................................................................................................................................ 29
6.8.2 Load controller inputs ................................................................................................................................................... 29
6.9 Operator panel with LCD display.................................................................................................................................. 30
6.9.1 Combustion head.......................................................................................................................................................... 32

20079424 2
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Contents
7 Maintenance ..............................................................................................................................................................................33
7.1 Notes on safety for the maintenance.............................................................................................................................33
7.2 Maintenance programme ..............................................................................................................................................33
7.2.1 Maintenance frequency.................................................................................................................................................33
7.2.2 Checking and cleaning..................................................................................................................................................33
7.3 Opening and closing the burner ....................................................................................................................................34
7.4 Recommended preventive maintenance schedule .......................................................................................................35
7.5 Opening and closing the burner ....................................................................................................................................35
8 Operation, indication, diagnostics..........................................................................................................................................36
8.1 Control sequence in the event of fault...........................................................................................................................36
8.2 Fault status messages, display of errors.......................................................................................................................36
8.2.1 Display of errors (faults) with lockout ............................................................................................................................36
8.3 Error code list with operation via internal LED ..............................................................................................................37
8.4 Resetting the burner control..........................................................................................................................................38
8.5 Operation.......................................................................................................................................................................38
8.5.1 Manual adjustment........................................................................................................................................................38
8.5.2 Diagnostics of cause of fault .........................................................................................................................................40
8.5.3 First startup with a new program module or in case of replacement of program module..............................................41
8.6 Manual restore ..............................................................................................................................................................42
8.6.1 Errors during the restore process..................................................................................................................................43
8.6.2 Reset.............................................................................................................................................................................43
9 Appendix - Accessories ...........................................................................................................................................................44
10 Appendix - Electrical panel layout...........................................................................................................................................45

3 20079424
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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: Premixed gas burner
Model: RX 700 S/PV
RX 850 S/PV
RX 1000 S/PV
These products are in compliance with the following Technical Standards:
EN 676
EN 12100
and according to the European Directives:
GAD 2009/142/EC Gas Devices Directive
MD 2006/42/EC Machine Directive
LVD 2006/95/EC Low Voltage Directive
EMC 2004/108/EC Electromagnetic Compatibility
Such products are marked as follows:
The quality is guaranteed by a quality and management system certified in accordance with UNI EN ISO 9001.
Declaration of Conformity A.R. 8/1/2004 & 17/7/2009 – Belgium
Producer: RIELLO S.p.A.
37045 Legnago (VR) Italy
Tel. ++39.0442630111
www.rielloburners.com
Distributed by: RIELLO NV
Ninovesteenweg 198
9320 Erembodegem
Tel. [phone]
Fax. [phone]
e-mail. [email protected]
URL. www.riello.be
It is hereby certified that the apparatuses specified below conform with the model of the type described n the CE conformity declaration and they are
produced and placed in circulation in conformity with the provisions defined in L.D. dated January 8, 2004 and July 17, 2009.
Product type: Premixed gas burner
Model: RX 700 S/PV
RX 850 S/PV
RX 1000 S/PV
Standard applied: EN 676 and A.R. dated January 8, 2004 - July 17, 2009
Measured value: RX 700 S/PV CO max: 17 mg/kWh
Max. NOx: 61 mg/kWh
RX 850 S/PV CO max: 2 mg/kWh
Max. NOx: 67 mg/kWh
RX 1000 S/PV CO max: 13 mg/kWh
Max. NOx: 66 mg/kWh
Controlling organisation: TÜV Industrie Service GmbH
TÜV SÜD Gruppe
Ridlerstrase, 65
80339 München DEUTSCHLAND
Manufacturer’s Declaration
RIELLO S.p.A. declares that the following products comply with the NOx emission limits specified by German standard “1. BImSchV release
26.01.2010”.
Product Type Model Power
Premixed gas burner 854T3 RX 700 S/PV 135 ÷ 700 kW
926T1 RX 850 S/PV 170 ÷ 880 kW
891T3 RX 1000 S/PV 180 ÷ 1075 kW
Legnago, 10.10.2013 Executive Director
RIELLO S.p.A. - Burner Department Research & Development Director RIELLO S.p.A. - Burner Department
Mr. G. Conticini Mr. R. Cattaneo

20079424 4
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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
Service 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
Pag. 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 COVER
AND ALL THE SAFETY AND PROTECTION DE-
VICES
This symbol signals the obligation to reassemble
the cover 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.

5 20079424
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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 Assist-
ance 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 date of
installation, 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;
continuation of use of the burner when a fault has occurred;
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;
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.

20079424 6
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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 uses expressly foreseen by the manufactur-
er;
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.
must take all the measures necessary to pre-
vent 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 20079424
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Technical description of the burner
4.1 Models available
4.2 Burner categories - Countries of destination
4.3 Technical data
Tab. A
(1) Reference conditions: Room temperature 20°C - Gas temperature 15°C - Barometric pressure 1013 mbar - Altitude 0 m a.s.l.
(2) Input gas pressure 8)(Fig. 2) with zero pressure in 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 evaluated, in line with the regulations, on a spherical surface centred on the burner and with a radius of 1 metre.
4.4 Burner weight
The weight of the burner complete with its packaging is shown in
Tab. B.
Tab. B
4 Technical description of the burner
Designation Voltage Code
RX 700 S/PV 230V - 50-60 Hz 20074586
RX 850 S/PV 230V - 50-60 Hz 20074219
RX 1000 S/PV 3N - 400V - 50-60 Hz 20050087
Country of destination Gas category
SE - FI - AT - GR - DK - ES - GB - IT - IE - PT - IS - CH - NO I2H
DE I2ELL
NL I2L
FR I2Er
BE I2E(R)B
LU - PL I2E
Model RX 700 S/PV RX 850 S/PV RX 1000 S/PV
Type 854T3 926T1 891T3
Power(1)
Delivery (1)
min - max
min - max kW Mcal/h 135 ÷ 700 116 ÷ 603 170 ÷ 880 147 ÷ 759 180 ÷ 1075 155 ÷ 927
Fuels Natural gas: G20 (methane gas) - G21 - G22 - G23 - G25
Valve inlet gas pressure (2) -
Gas: G20/G25 mbar 15 ÷ 360
Operation – Intermittent (min. 1 stop in 24 hours)
– Modulating
Standard applications Boilers: water, steam, diathermic oil
Ambient temperature °C 0 - 40
Combustion air temperature °C max 60
Electrical supply 1N ~ 230V +/-10% 50/60 Hz 3N ~ 400V 50/60 Hz
Fan motor
rpm
V
kW
A
4500
230 V
0.860
4.8
6100
3N ~ 400V 50/60 Hz
2.5
4
Ignition transformer V1 - V2
I1 - I2 230 V - 2 x 10 kV 0.3 A - 50/60 Hz 0.4 A
Absorbed electrical power kW max 1.1 1.1 3
Protection level IP 20
Noise levels (3) Sound pressure
Sound power dB(A) 82.2 93.2 88.2 99.2
Model kg
RX 700 S/PV 50
RX 850 S/PV 50
RX 1000 S/PV 60

20079424 8
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Technical description of the burner
4.5 Maximum dimensions
The maximum dimensions of the burner are given in Fig. 1.
Bear in mind that, in order to inspect the combustion head, the
burner must be pulled back.
Tab. C
Fig. 1
20075691
mm A B C E F G H I L
RX 700 S/PV 660 490 910 520 540 367 200 370 135RX 850 S/PV 660 460
RX 1000 S/PV

9 20079424
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Technical description of the burner
4.6 Burner description
1 Combustion head
2 Ignition electrode
3 Flame sensor probe
4 Gas valve
5 Air/gas mixer in the suction line circuit
6 Gas pressure test point
7 Gas pipe valve
8 Gas input
9 Boiler fixing flange
10 Fan
11 Air passage in fan
12 Electrical control box
13 Luminous push-button for reset
14 Plug-socket on ionisation probe cable
15 Terminal board for electrical wiring
16 Transformer
17 Plate with 4 holes, useful for passing electrical cables
18 Fuses
19 Programming board
20 ON-OFF selector
21 Light signalling of mains live state
22 Fan/output relay three-phase contactor
23 Display
4.7 Burner equipment
Flange for gas train . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Screws to secure the valve . . . . . . . . . . . . . . . . . . . . . . . . No. 4
Insulating gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Gas valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Hardware for burner assembly:
8 x 50 STAINLESS STEEL nuts (with or without tip) . . . . . No. 4
8 x 16 zinc-plated washers. . . . . . . . . . . . . . . . . . . . . . . . . No. 4
Zinc-plated serrated washers . . . . . . . . . . . . . . . . . . . . . . . No. 4
M8 Zinc-plated nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 4
20075698
Fig. 2
WARNING
Burner lockout may occur.
CONTROL BOX LOCKOUT:
when the push-button 13)(Fig. 2) lights up, it indi-
cates that the burner is in lockout.
Press the push button to reset.

20079424 10
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Technical description of the burner
4.8 Firing rates
The maximum output should not exceed the maximum limit of
the diagram (Fig. 3 - Fig. 4 - Fig. 5).
RX 700 S/PV = 700 kW
RX 850 S/PV = 880 kW
RX 1000 S/PV = 1075 kW
The minimum output should not belower than the minimum limit
of the diagram (Fig. 3 - Fig. 4 - Fig. 5).
RX 700 S/PV = 135 kW
RX 850 S/PV = 170 kW
RX 1000 S/PV = 180 kW
The Ignition output should be selected from within area A for the
gas G20 - G25.
WARNING
The firing rate (Fig. 3 - Fig. 4 - Fig. 5) was ob-
tained with an ambient temperature of 20 °C, at a
barometric pressure of 1013 mbar (about 0 m
a.s.l.).
Combustion chamber
combustion head - mbar
Thermal power – kW
RX 700 S/PV
Fig. 3
20076449
A
20075302
Thermal power – kW
RX 850 S/PV
Fig. 4
A
Combustion chamber
combustion head - mbar

11 20079424
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Technical description of the burner
4.8.1 Test boiler
The firing rates were set in relation to special test boilers, accord-
ing to EN 676 regulations.
4.8.2 Commercial boilers
The burner-boiler combination does not pose any problems if the
boiler is EC approved.
If, however, the burner has to be applied to a commercial boiler
that is not EC approved and/or with clearly smaller combustion
chamber dimensions, check with the manufacturers.
It is not recommended that this burner for boilers is used with a
frontal circulation of the flue gases.
20075304
Combustion chamber
combustion head - mbar
Thermal power – kW
RX 1000 S/PV
Fig. 5
A

20079424 12
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Technical description of the burner
4.9 Burner controls (LME71...)
Warning notes
All activities (mounting, installation and service work, etc.)
must be performed by qualified personnel.
Before making any wiring changes in the connection area,
completely isolate the plant from mains supply (all-polar dis-
connection). Ensure that the plant cannot be inadvertently
switched on again and that it is indeed dead. If not observed,
there is a risk of electric shock hazard.
Ensure protection against electric shock hazard by providing
adequate protection for the burner control’s connection ter-
minals (e. g. with dummy plugs for inputs and outputs not
used). If not observed, there is a risk of electric shock haz-
ard.
The space where the program module (Fig. 7) is located is
defined as plugging space and therefore back-off-hand-
proof when the program module is not fitted.
If the housing or the area near the operating panel is dam-
aged, the unit must immediately be put out of operation. If
not observed, there is a risk of electric shock hazard.
Press the buttons on the operating panel only manually with-
out using any tools or pointed objects. If the film of the oper-
ating panel is damaged, there is a risk of electric shock
hazard.
To ensure safety and reliability of the LME71... system, the fol-
lowing points must also be observed:
– Condensation and ingress of humidity must be avoided.
Should such conditions occur, make sure that the unit will be
completely dry before switching on again! If not observed,
there will be a risk of electric shock.
– Static charges must be avoided since they can damage the
unit’s electronic components when touched.
Program module
Mounting notes
Ensure that the relevant national safety regulations are com-
plied with
The LME7... basic unit must be secured with fixing screws
M4 (UNC32) or M5 (UNC24), observing a maximum tighten-
ing torque of 1.8 Nm and using all 3 fixing points.
The additional mounting surfaces on the housing are pro-
vided to improve mechanical stability.
These must fully rest on the mounting surface to which the
unit is secured.
The flatness of that mounting surface must be within a toler-
ance band of 0.3 mm.
WARNING
To avoid injury to persons, damage to property or
the environment, the following warning notes
must be observed!
The LME71... are safety devices! Do not open, in-
terfere with or modify the unit.
Riello S.p.A. does not assume responsibility for
damage resulting from unauthorized interference!
Additional safety notes contained in other chap-
ters of this document must be observed as well!
WARNING
Only qualified personnel are allowed to install and
operate the equipment.
Qualified personnel in the context of the safety-re-
lated notes contained in this document are per-
sons who are authorized to commission, ground
and tag devices, systems and electrical circuits in
compliance with established safety practices and
standards.
WARNING
Condensation, formation of ice and ingress of wa-
ter are not permitted!
If not observed, there is a risk of impairment of
safety functions and of electric shock hazard.
S8593
Fig. 6
S8673 Fig. 7

13 20079424
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Technical description of the burner
Installation notes
Always run the high-voltage ignition cable separate from the
unit and other cables while observing the greatest possible
distance.
Do not mix up live and neutral conductors.
Install switches, fuses and earthing in compliance with local
regulations.
The connection diagrams show the burner controls with
earthed neutral conductor.
Make certain that the maximum permissible current rating of
the connection terminals is not exceeded.
Make certain that strain relief of the connected cables is in
compliance with the relevant standards.
Do not feed mains voltage to the control of the control box.
When testing the devices controlled by the burner control
(fuel valves, etc.), the LME71… must not be connected to
the units.
The mechanical coupling between the actuators and the
controlling elements for fuel and air, or any other controlling
elements, must be rigid.
Check the connecting lines of the air pressure switch for
short-circuits.
Electrical connection of flame detectors
It is important to achieve practically disturbance- and loss-free
signal transmission:
Never run the detector cable together with other cables:
– line capacitance reduces the magnitude of the flame sig-
nal;
– use a separate cable.
Observe the permissible detector cable lengths (see Techni-
cal Data).
The mains-powered ionization probe is not protected against
electric shock hazard.
Locate the ignition electrode and the ionization probe such
that the ignition spark cannot arc over to the ionization probe
(risk of electrical overloads) and that it cannot adversely
affect the supervision of ionization.
Description of display and buttons
Tab. D
Button Function
Button A
– Display preset output
– In lockout position: power value to the time of
fault
Info and Enter Button
The lockout reset button (info button) is the key
operating element for resetting the burner control
and for activating/deactivating the diagnostics
functions.
- Button
– Display flame signal current 2 or phases dis-
play
– In lockout position: MMI phase to the time of
fault
+ Button
– Display flame signal current 1 or phases dis-
play
– In lockout position: MMI phase to the time of
fault
3 multicolor signal lamp
The multicolor signal lamp (red - yellow - green)
is the key indicating element for visual diagnos-
tics.
+ and - Button: escape function
Press + and - button simultaneously!
– No adoption of value
– One menu level up
– Keep depressed for >1 second for backup/
restore function
nfo
+
-
A
S8595 Fig. 8
A
nfo
-
+
- +
and

20079424 14
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Technical description of the burner
Technical data
Tab. E
LME71... burner
controls Mains voltage AC 230 V
Mains frequency 50 / 60 Hz +- 6%
Power consumption <10 W, typical
External primary fuse Max. 6.3 A (slow)
Safety class I with parts according to II and III to DIN EN 60730-1
Terminal rating
“Inputs” Under voltage UMains 230 V
• Safety shutdown from the operating position takes
place should mains voltage drop
• Restart is initiated when mains voltage exceeds
< AC 165V
> AC 195V
Input currents and input voltages
–UeMax
–UeMin
– IeMax
–IeMin
UN +10%
UN -15%
1 mA peak (peak value)
0.5 mA peak (peak value)
Voltage detection
–ON
–OFF > AC 120V < AC 80V
Terminal rating
“Outputs” Total contact loading: Rated voltage
Unit input current X3-04 (safety loop) from:
– fan motor contactor
– ignition transformer
– fuel valves
AC 230 V - 50/60 Hz
Max. 5 A
Individual contact loading:
Fan motor contactor X2-01 pin 3
– Rated voltage
– Rated current
– Power factor
AC 230 V 50/60 Hz
2 A (15A max. 0.5 s)
Cos0.4
Alarm output X2-03/3
– Rated voltage
– Rated current
– Power factor
AC 230 V 50/60 Hz
1A
Cos> 0.6
Ignition transformer X4-02 pin 3
– Rated voltage
– Rated current
– Power factor
AC 230 V 50/60 Hz
2A
Cos> 0.4
Auxiliary output
– Rated voltage
– Rated current
– Power factor
AC 230 V 50/60 Hz
1A
Cos> 0.6
Output relay contact 2 pin 2 X2-09 pin 7
– Rated voltage
– Rated current
– Power factor
AC 230 V 50/60 Hz
1A
Cos> 0.4
Fuel valves/pilot valve X7-01 pin 3
– Rated voltage
– Rated current
– Power factor
AC 230 V 50/60 Hz
1A
Cos> 0.4
Safety valve X6-03 pin 3
– Rated voltage
– Rated current
– Power factor
AC 230 V 50/60 Hz
1.5A
Cos> 0.6
Cable lengths Mains supply line Max. 100 m (100 pF/m)
Cross-sectional
areas The cross-sectional areas of the mains power lines (L, N, and PE) and, if required, the safety loop (safety limit thermostat, water shortage, etc.) must be sized for rated currents according to the selected external primary
fuse. The cross-sectional areas of the other cables must be sized in accordance with the internal unit fuse
(max. 6.3 AT).
Environmental
conditions Operation Climatic conditions
Mechanical conditions
Temperature range
Humidity
DIN EN 60721-3-3
Class 3K3
Class 3M2
-40...+60°C
< 95% r.h.

15 20079424
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Technical description of the burner
Program sequence
M
Z
V1
V2
AL
K1X2-02Pin 3
Sp e ed p o i n t s
P2 (high- re)
P0(ignitionload)
P1 (low- re)
0(no-load speed)
R
LR-OPEN
LR-CLOSE
Optional (LP)
ifP235=1
Pmin
PLT
ION/ QRA
Not active
X3-04Pin 5
Relay
contact Function/inputs
Operating unit parameter number
LED permanent
LED ashing
tw t11 t10 t12 t3 t3n t4
Standby Startup Operation Shutdown Valveproving
if parameter
P241 =1 (ON)
Can b e
parameterized
t1 TSA
432752622062522952
Relay
contact Function/outputs
SK
X3-04Pin 1
X5-03Pin 1
X5-03Pin 3
X65 Pin 1
X5-03Pin 2
X65 Pin 1
X3-02Pin 1
X5-01Pin 2
X2-02Pin 4
X9-04Pin 2
PWM
K1X6-03Pin 3
K4X2-01Pin 3
K5X4-02Pin 3
K7X7-04Pin 4
X7-01Pin 3
K2/1X2-03Pin 3
Phase number
382818080147274424048363030322422212 oP:xx(actual load in%) 74
224
t11 t8
POC
POC
Standby
speed
Prepurge speed
Ignitionload speed
High- re speed
Modulationrange Low- re speed
Post purge speed Purge speed
242 243 244 245240240240240240240
*1
*2
td4 td1 td3 td2
S8594
Fig. 9

20079424 16
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Technical description of the burner
Key Fig. 9:
Tab. F
Times
Tab. G
AL Alarm device
AUX Auxiliary output
Dbr Wire link
Lockout reset button (info button)
EK2 Remote lockout reset button
FSV Flame signal amplifier
ION Ionization probe
K... Relay contact
LED 3-color signal lamp
LP Air pressure switch
LR Load controller
LR-OPEN Load controller OPEN position
LR-CLOSE Load controller CLOSED position
MFan motor
NT Power supply unit
P LT Pressure switch valve proving
Pmax Pressure switch-max
Pmin Pressure switch-min
POC Proof of closure
PV Pilot valve
QRA... UV flame detector
RControl thermostat or pressurestat
SA Actuator
SA-KL Actuator low-fire
SA-NL Actuator high-fire
SA-R Actuator feedback
SA-Z Actuator CLOSED
SA-ZL Actuator ignition load
SL Safety loop
STB Safety limit thermostat
SV Safety valve
V1 Fuel valve
V2 Fuel valve
V2a Fuel valve
WLimit thermostat or pressure switch
ZIgnition transformer
µC µC controller
Input/output signal 1 (ON)
Input/output signal 2 (OFF)
Input permissible signal 1 (ON) or 0 (OFF)
/reset
(EK1)
TSA Safety time
tw Waiting time
t1 Prepurge time
t3 Preignition time
t3n Postignition time (P257 +0.3 seconds)
t4
(dependent on
application)
Interval: end of safety time ñ fuel valve 1 ON
Interval: end of safety time ñ fuel valve 2 ON
Interval: end of safety time ñ load controller
release
t5 Interval: Pilot valve OFF - load controller
release
t8 Postpurge time
t9
(dependent on
application)
Interval: Fuel valve 1 ON - pilot valve OFF
Interval: Fuel valve 2 ON - pilot valve OFF
t10 Specified time air pressure switch state mes-
sage (timeout)
t11 Opening time of actuator (timeout)
t12 Closing time of actuator (timeout)
t22 2nd safety time
td1 Test atmospheric pressure
td2 Test gas pressure
td3 Gas valve filling test
td4 Gas valve evacuating test

17 20079424
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Technical description of the burner
Key to Phases (Fig. 9):
Tab. H
4.9.1 Indication of diagnostics mode
Both lockout reset button and signal lamp are located in the con-
trol panel.
There are 2 diagnostics choices:
1 Visual diagnostics: Indication of operating state or diagnos-
tics of cause of fault
2 Diagnostics: Via BCI to AZL2... display and operating unit
Visual diagnostics:
in normal operation, the different operating states are indicated in
the form of color codes according to the color code table given
below (Tab. I).
Indication of operating state
During startup, state indication takes place according to the Tab.
I:
Tab. I
Key (Tab. I)
Phase
number Function
LOC Lockout shutdown phase
OFF Standby, waiting for heat request
oP Part 1: request load controller OPEN
Part 2: modulation of fan motor speed toward high-
fire
Part 3: high-fire reached
Part 4: request load controller CLOSED
Part 5: modulation of fan motor speed toward low-
fire
Part 6: low-fired reached
10 Settling time, fan motor standby speed
21 Safety valve ON, air pressure switch in no-load posi-
tion
Check if POC is closed, fan motor speed is reduced
to 0
22 Part 1: fan motor ON
Part 2: specified time air pressure switch
Message (timeout), stabilization of air pressure
switch
24 Settling time, fan motor prepurge speed
30 Part 1: prepurge time without flame simulation test
Part 2: prepurge time with flame simulation test
(2.1 seconds)
36 Speed stabilization time at MAX speed
38 Preignition time
40 Postignition time, parameter 257 + 0.3 seconds
42 Flame detection
44 Interval: end of ignition safety time and release of
load controller
72 Speed stabilization time, fan motor postpurge speed
74 Part 1: operation is ended, check if postpurging is
programmed
Part 2: postpurge time
80 Test space is evacuated
81 Atmospheric pressure test
82 Test space is filled
83 Gas pressure test
90 Pressure switch-min open --> safety shutdown
*1 Valve proving, if P241 = 1 after main ON, lockout or
P234 (postpurge time) = 0 second
*2 Valve proving, if P241 = 1 and P234 (postpurge time)
>0 second
The lockout reset button (info button) is the key
operating element for resetting the burner control
and for activating/deactivating the diagnostics
functions.
The multicolor signal lamp is the key indicating el-
ement for visual diagnostics.
Color code table for multicolor signal lamp
State Color code Color
Waiting time,
other waiting states OFF
Ignition phase,
ignition controlled Blinking yellow
Operation,
flame o.k. Green
Operation,
flame not o.k. Blinking green
Extraneous light on
burner startup Green - Red
Undervoltage Yellow - Red
Fault, alarm Red
Error code output (see
Error code Tab. W) Blinking red
Interface diagnostics Red flicker
light
Heating request Yellow
New program card Yellow
Yellow - Red
nfo
Red
Yellow
Green
LED
...............................
...............................
...............................
...............................
Red
Yellow
Green
........ OFF Steady on

20079424 18
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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 burner packaging includes a wooden platform, it is therefore
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 (Fig. 10), showing:
A the burner model;
B the burner type;
C the cryptographic year of manufacture;
D the serial number;
E the data for electrical supply and the protection level;
F the electrical power consumption;
G the types of gas used and the relative supply pressures;
H the data of the burner's minimum and maximum output pos-
sibilities (see Firing rate)
Warning. The burner output must be within the boiler's firing
rate;
I the category of the appliance/countries of destination.
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
20-25cm 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
DEBC
F
I
G H
G H
D10411 Fig. 10