Riello RX 360 S/PV Instruction Manual

20068189 (6) - 03/2018
Installation, use and maintenance instructions
Instructions pour installation, utilisation et entretien
Premix gas burners
Brûleurs de gaz pré-mélangé
Modulating operation
Fonctionnement modulant
CODE MODEL - MODELE TYPE
20067700 RX 360 S/PV 851T3
20104208 RX 360 S/PV GPL 851T3
GB
F

Translation of the original instructions
Traduction des instructions d’origine

1 20068189
GB
Contents
1 Declarations................................................................................................................................................................................ 3
2 Information and general warnings............................................................................................................................................ 5
2.1 Information about the instruction manual........................................................................................................................ 5
2.1.1 Introduction..................................................................................................................................................................... 5
2.1.2 General dangers............................................................................................................................................................. 5
2.1.3 Other symbols................................................................................................................................................................. 5
2.1.4 Delivery of the system and the instruction manual ......................................................................................................... 6
2.2 Guarantee and responsibility .......................................................................................................................................... 6
3 Safety and prevention................................................................................................................................................................ 7
3.1 Introduction..................................................................................................................................................................... 7
3.2 Personnel training........................................................................................................................................................... 7
4 Technical description of the burner ......................................................................................................................................... 8
4.1 Technical data ................................................................................................................................................................ 8
4.2 Burner categories ........................................................................................................................................................... 8
4.3 Maximum dimensions..................................................................................................................................................... 9
4.4 Firing rate........................................................................................................................................................................ 9
4.4.1 Test boiler....................................................................................................................................................................... 9
4.4.2 Commercial boilers......................................................................................................................................................... 9
4.5 Output supplied............................................................................................................................................................. 10
4.6 Burner equipment ......................................................................................................................................................... 10
4.7 Burner description......................................................................................................................................................... 11
4.8 Control box (CM222) .................................................................................................................................................... 12
4.8.1 Connection diagram...................................................................................................................................................... 14
4.8.2 Terminals diagram........................................................................................................................................................ 14
4.8.3 Parameters and codes.................................................................................................................................................. 15
4.8.4 Safety Parameters........................................................................................................................................................ 15
4.8.5 Error codes ................................................................................................................................................................... 16
4.8.6 Operating status ........................................................................................................................................................... 16
4.9 Operation diagrams ...................................................................................................................................................... 17
4.9.1 Start-up and shut-down ................................................................................................................................................ 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 Positioning probe - electrodes ...................................................................................................................................... 20
5.7 Securing the burner to the boiler .................................................................................................................................. 20
5.8 Fuel supply ................................................................................................................................................................... 22
5.8.1 Air/gas mixer................................................................................................................................................................. 22
5.8.2 Gas train ....................................................................................................................................................................... 23
5.9 Electrical wiring............................................................................................................................................................. 24
5.9.1 Supply cables and external connections passage........................................................................................................ 24
6 Operation .................................................................................................................................................................................. 25
6.1 Notes on safety for the first start-up.............................................................................................................................. 25
6.2 Adjustments prior to ignition ......................................................................................................................................... 25
6.3 Burner start-up.............................................................................................................................................................. 25
6.4 Fan adjustment............................................................................................................................................................. 25
6.5 Gas valve adjustment ................................................................................................................................................... 25
6.6 Burner adjustment ........................................................................................................................................................ 25
6.6.1 Maximum output ........................................................................................................................................................... 26
6.6.2 Minimum output ............................................................................................................................................................ 26

20068189 2
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Contents
6.6.3 Ignition output................................................................................................................................................................26
6.7 Combustion head ..........................................................................................................................................................26
6.7.1 Emissions ......................................................................................................................................................................27
6.8 Final checks (with burner operating) .............................................................................................................................27
6.9 Ionisation current...........................................................................................................................................................27
7 Maintenance ..............................................................................................................................................................................28
7.1 Notes on safety for the maintenance.............................................................................................................................28
7.2 Maintenance programme ..............................................................................................................................................28
7.2.1 Maintenance frequency.................................................................................................................................................28
7.2.2 Safety test - with no gas supply.....................................................................................................................................28
7.2.3 Checking and cleaning ..................................................................................................................................................28
7.2.4 Safety components........................................................................................................................................................29
8 Faults / Solutions ......................................................................................................................................................................30
8.1 Start-up problems..........................................................................................................................................................30
8.2 Operating faults.............................................................................................................................................................31
A Appendix - Accessories ...........................................................................................................................................................32
B Appendix - Electrical panel layout...........................................................................................................................................33

3 20068189
GB
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: Pre-mixed gas burner
Model: RX 360 S/PV
RX 360 S/PV GPL
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 2014/35/UE Low Voltage Directive
EMC 2014/30/UE Electromagnetic Compatibility
Such products are marked as follows:
The quality is guaranteed by a quality and management system certified in accordance with ISO 9001:2015.
Declaration of Conformity A.R. 8/1/2004 & 17/7/2009 – Belgium
Manufacturer:
RIELLO S.p.A.
37045 Legnago (VR) Italy
Tel. ++39.0442630111
www.riello.com
Distributed by:
RIELLO NV
Ninovesteenweg 198
9320 Erembodegem
Tel. [phone]
Fax. [phone]
e-mail. [email protected]
URL. www.riello.be
This document certifies that the series of devices specified below is in compliance with the model described in the EC Declaration
of Conformity and has been manufactured and distributed in compliance with the requirements defined in the Legislative Decree of
January 8th 2004 and July 17th 2009.
Type of product: Pre-mixed gas burner
Model: RX 360 S/PV
RX 360 S/PV GPL
Regulation applied: EN 676 and A.R. of January 8th 2004 - July -17th 2009
Controlling organisation:
TÜV Industrie Service GmbH
TÜV SÜD Gruppe
Ridlerstrase, 65
80339 München DEUTSCHLAND
Values measured: Max. CO: 13 mg/kWh
Max. NOx: 70 mg/kWh
Legnago, 01.12.2015 Executive General Manager
RIELLO S.p.A. - Burner Department
Research & Development Director
RIELLO S.p.A. - Burner Department
Mr. U. Ferretti Mr. F. Comencini
CE-0085 BR 0225

20068189 4
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Declarations
Manufacturer's Declaration
RIELLO S.p.A. declares that the following products comply with the NOx emission limits specified by German standard “1. BIm-
SchV revision 26.01.2010”.
Product Type Model Output
Pre-mixed gas burner 851T3 RX 360 S/PV 60 - 360 kW
851T3 RX 360 S/PV GPL 60 - 360 kW
Legnago, 01.12.2015 Executive General Manager
RIELLO S.p.A. - Burner Department
Research & Development Director
RIELLO S.p.A. - Burner Department
Mr. U. Ferretti Mr. F. Comencini

5 20068189
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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 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.

20068189 6
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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 manufac-
turer 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.

7 20068189
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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.

20068189 8
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Technical description of the burner
4.1 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) Pressure at socket P1)(Fig. 19 on page 22) 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 measured with the “Free Field” method, as per EN 15036, and according to an “Accuracy: Category 3” measuring accuracy, as set out in
EN ISO 3746.
4.2 Burner categories
Tab. B
4 Technical description of the burner
Model RX 360 S/PV RX 360 S/PV GPL
Output (1) Max. kW
Mcal/h
360
310
Min. kW
Mcal/h
60
52
Fuel Natural gas: G20 (methane gas) - LPG: (G31)
Power Supply Pressure (2) mbar 17 - 100 25 - 100
Diameter gas valve inlet 1”
Operation – Intermittent (min. 1 stop in 24 hours).
– Modulating with kit (see ACCESSORIES)
Standard applications Boilers: water, steam, diathermic oil
Ambient temperature °C 0 - 40
Combustion air temperature °C max 60
Electrical supply 230V ~ +/-10% 50 Hz
Fan motor rpm
W
V
A
5830
360
220 - 240
1.6
Ignition transformer V1 - V2
I1 - I2
230 V - 2 x 10 kV
0.3 A - 50/60 Hz - 40 mA
Absorbed electrical power W max 380
Protection level IP40
Weight kg 25
Noise levels (3) Sound pressure
Sound power dB(A) 72.8 84.7
Country of destination Gas category
BE I2E(R)
BG, DK,EE, FI, LV, NL, NO, SE I2H
DE, LU, PL I2E
BE, CY, DE, HU, MT, NL, PL I3P
AT, CH, CZ, ES, FR, GB, GR, IE, IS, IT, LT, PT, RO, SI, SK II2H3P

9 20068189
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Technical description of the burner
4.3 Maximum dimensions
The maximum dimensions of the burner and flange are shown in
Fig. 1.
Tab. C
4.4 Firing rate
The maximum output must not be greater than the maximum
limit of the diagram (Fig. 2).
The minimum output must not be lower than the minimum limit
of the diagram.
The ignition output must be selected from within area A for gas
G20 - G31.
4.4.1 Test boiler
The firing rates were set in relation to special test boilers, accord-
ing to EN 676 regulations.
4.4.2 Commercial boilers
The burner-boiler combination does not pose any problems if the
boiler is EC type-approved.
If, however, the burner is to be used with a commercial boiler that
has not been EC approved and/or its combustion chamber di-
mensions are distinctly smaller, consult the manufacturer.
You are advised to use this burner for boilers with a frontal circu-
lation of the flue gases.
Fig. 1
20069631
mm A B C E F G H I L
RX 360 S/PV 443 417 675 371 580 410 144 306 134
WARNING
The firing rate (Fig. 2) has been obtained at an
ambient temperature of 20 °C, at a barometric
pressure of 1013 mbar (about 0 m a.s.l.).
Fig. 2
Combustion chamber
combustion head - mbar
Thermal power – kW
20069649
A

20068189 10
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Technical description of the burner
4.5 Output supplied
The diagrams (Fig. 3) allow you to set the power output either us-
ing the number of fan revs or using the pressure downstream of
the gas valve (P2) Fig. 19 on page 22.
Example:
Natural gas GG20 operation NCV 9.45 kWh/Sm3
pressure on point 1 = - 12 mbar (See dotted line).
The burnt output corresponds to 300 kW.
Going vertically up the diagram, to intersect the not dotted line,
you can estimate the value of the number of revs on the left hand
y-axis: in this case 4800 rpm.
4.6 Burner equipment
Flange for gas train . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Air intake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Gas pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Screws M 5 x 16 for securing the valve . . . . . . . . . . . . . . No. 4
Insulating screen and gasket . . . . . . . . . . . . . . . . . . . . . . No. 1
Gas valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
4-pin plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
7-pin plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Small parts unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Hardware for burner assembly:
8 x 50 zinc-plated nuts (with or without tip) . . . . . . . . . . . . No. 4
Zinc-plated washers Ø 8 . . . . . . . . . . . . . . . . . . . . . . . . . . No. 4
Zinc-plated toothed washers Ø 8 . . . . . . . . . . . . . . . . . . . . No. 4
M8 Zinc-plated nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 4
WARNING
For an exact reading of the number of revs there
is a kit for interfacing with the control box.
Fig. 3
No. of motor turns/min.
No. of motor turns/min.
Thermal power – kW
Outlet pressure
Pressure
No. revs
gas valve - mbar
Outlet pressure
gas valve - mbar
Thermal power – kW
Pressure
No. revs
WARNING
The burner is supplied with combustion head and
electrodes assembled.

11 20068189
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Technical description of the burner
4.7 Burner description
1 Combustion head
2 Ignition electrode
3 Flame sensor probe
4Gas valve
5 Air/gas mixer in the suction line circuit
6 Gas pressure test point
7 Gas valve conduit - Venturi
8 Gas input
9 Boiler fixing flange
10 Fan
11 Air passage in fan
12 Control box with lockout pilot light
13 Reset button
14 Plug-socket on ionisation probe cable
15 Sockets for electrical connection
16 Transformer
17 Plate with four hole knock-outs for electrical cable routing
Burner lockout may occur.
control box lockout:
if the control box 13)(Fig. 4) push-button lights up, it indicates
that the burner is in lockout.to reset, press the push-button.
20069594
Fig. 4

20068189 12
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Technical description of the burner
4.8 Control box (CM222)
The control box used is the Kromschroder CM222. It is based on
microprocessor technology and is concerned with flame control
in the management of modulating burners.
Warnings
All interventions (assembly and installation operations,
assistance, etc.) must be carried out by qualified personnel.
To avoid impediments to safety and damage to the control
box, it is very important that all the plugs are connected
properly. No adjustments to the connections are allowed.
The power supply cables should have a minimum cross-sec-
tion surface of 0.75 mm².
Before modifying the wiring in the control box connection
area, fully disconnect the system from the power supply
(omnipolar separation). Check the system is not powered
and cannot be accidentally reconnected. Failure to do this
will lead to the risk of electrocution.
After every intervention (assembly and installation opera-
tions, assistance, etc.), ensure the wiring is in order and that
the parameters are correctly set, then perform the safety
checks.
For the safety and reliability of the control box, comply with the
following instructions:
– avoid conditions that can favour the development of conden-
sate and humidity. Otherwise, before switching on again,
make sure that the entire control box is perfectly dry!
– Static charges must be avoided since they can damage the
control box’s electronic components when touched.
NOTE:
the main 230VAC power supply line is protected with a fuse. This
is connected to the terminal board of the burner's control box. Re-
place the fuse, making sure to use one of the same value (6.3 A).
After replacing the fuse, the system should be controlled to verify
the safety of the technical functionalities!
Technical data
Tab. D
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!
Risk of explosion!
An incorrect configuration can provoke fuel over-
charging, with the consequential risk of explosion!
The operators must be aware that the incorrect
setting of the visualisation and operation control
box, and of the positions of the fuel and/or air ac-
tuators, can cause dangerous conditions during
burner operation.
WARNING
Replacing fuses should only be carried out by
qualified personnel, because safety circuits are in-
volved.
All the poles of the unit should be separated from
the mains and secured. In no case should the val-
ues of the fuses be changed.
Mains voltage 230 V~ (-15/+10 %), 50 Hz
Input power ~ 3W; ~ 6.5VA
Fuse 6.3 AT-H
Type of protection IP 40
Weight approx. 0.84 kg
Input signals:
- Gas/air pressure switch
- Thermostat
- Remote reset
- 3 points command
230 V ~ 3.5 mA
Outlet signals:
- Gas valve
- Ignition transformer
- Operation relay
- Faults relay
- Fan
230 V~ (-10/+15 %) max. 2A
- 6.5A total maximum peak
current;
- 5A continuous
Environmental conditions:
Storage temperature
Ambient temperature
Air humidity
-25 ... +70 °C
0 ... +60 °C
£ 95 % r.h.
Fig. 5
S8885

13 20068189
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Technical description of the burner
Mechanical structure
The control box is a system to check the burners, based on a mi-
croprocessor and equipped with components to adjust and su-
pervise medium and large capacity forced draught burners.
Possibility of fixing with screws on both sides.
Removable cover for wiring, fixed with a screw.
Potentiometer for adjusting the number of revs of the blower
accessible from the outside.
Connections: Rast5 connector, Wieland plug, Kromschröder
optical adaptor.
Piping for cables in two directions with cable reliefs.
Earthed neutral connector with safety conductor.
Interchangeable appliance safety device, alternative safety
device in the appliance.
The parameters can easily adapt to the CM-Lab software.
The multiple functions provide a clear diagnosis. The con-
nection for the PC is carried out using an adapter cable with
an optical interface.
Operation
The potentiometers enable the speed value to be adjusted within
a range set within the internal parameters of the CM222 control
box.
Specifically (Fig. 6):
– The MAXIMUM POTENTIOMETER allows the maximum
speed to be adjusted and therefore the maximum burnt out-
put.
This parameter also regulates the fan speed in the pre-purg-
ing phase.
– The START POTENTIOMETER allows the reference value
for the burner output during the ignition and flame stabilisa-
tion program.
– The DISPLAY AND RESET BUTTON has various functions,
including: allows the state in which the fan is operational and
the type of error that occurred to be checked, and it also func-
tions as a reset button to reset the burner.
– The MINIMUM POTENTIOMETER allows the minimum
speed to be adjusted.
Fig. 6
Maximum potentiometer
Start potentiometer
Display and reset button
Minimum potentiometer

20068189 14
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Technical description of the burner
4.8.1 Connection diagram
4.8.2 Terminals diagram
Chip card Inlet
(optional) Modulation
Pressure
air (min.)
Pressure
gas (min.) Reset remote Command 3 points Thermostat
Checking
burner
Ignition Flame Valves
safety Operation
Lockout
Fan
Command
PWM motor
CM222
S8886
Fig. 7
Switch Switch
S8887
Rast 5
Wieland ST18/x
LockoutOperation
3 points command
Motor Ignition Gas valves Flame Gas-min Air-min Reset
Fuse
Fig. 8

15 20068189
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Technical description of the burner
4.8.3 Parameters and codes
Most of the functions are controlled by parameters. These pa-
rameters are memorised in the internal memory and pro-
grammed and tested in the factory.
It is however possible to change/update the parameter settings
with a BCC card (Burner Chip Card).
4.8.4 Safety Parameters
Tab. E
No. Parameter Min. Max. OEM-preset Value
1 pre-purging time 0.2 51 51 Seconds
2 Safety time 0.1 10 3 Seconds
3 Flame stabilisation time 0.1 25.5 10 Seconds
4 Ignition attempts 1 5 3 Number
5 Post-purging time 0.2 51 0 Seconds
6 Pre-ignition time 0.1 25.5 3 Seconds
7 Ignition time 0.1 25.5 3 Seconds
8 Post-purging speed 780 9960 1980 Rotations/min
9 Maximum speed 780 9960 6000 Rotations/min
14 Minimum limit maximum speed 780 9960 4020 Rotations/min
15 Maximum limit minimum speed 780 9960 2280 Rotations/min
16 Pulses per rotation 1 4 3 Pulses/rotation
17 Frequency of the check of speed 1 2 2 Hz
18 Airpress switch ON OFF OFF -
19 APS permanent test ON OFF OFF -
20 Feedback from motor ON OFF ON -
21 Gas pressure switch ON OFF OFF -
22 Restart ON OFF OFF -
23 Gas valve check ON OFF OFF -
24 Seal valve test ON OFF OFF -

20068189 16
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Technical description of the burner
4.8.5 Error codes
If the burner goes into lockout mode, the cause is displayed by
way of a flashing code. The Tab. F clarifies the meaning.
Tab. F
4.8.6 Operating status
The Tab. G clarifies the meaning of the burner's operating status.
The following operating phases are displayed with a fixed code.
Tab. G
No. Error code Cause Burner Off Lockout
1 Fan malfunction Too high or too low speed variation xx
3Flame loss
No flame at the end of safety time;
flame loss during operation; flame
present in pre-purging stage
xx
4BCC Loss
BCC connection incorrect;
BCC loss;
BCC parameters invalid
xx
5 Error during remote reset
This occurs when it is reset more than 5
times in 15 minutes or if the reset button
is pressed for more than 10 seconds
x/- x/-
8 CRC error The value is incorrect xx
9 Incorrect power supply The mains voltage is less than 185VAC
or greater than 270VAC x-
E Safety closing A safety closing operation has occurred xx
No. Operating status Cause
0 Standby Ambient thermostat standby;
All actuators off
1 Air pressure switch test Motor and air pressure switch test off
2 Pre-purge Motor and air pressure switch test on
3 Pre-purge Check that speed has been reached
4 Pre-ignition Standby to reach ignition speed
5 Safety time Ignition phase
6 Flame stabilisation time Wait for the flame to stabilise
7 Modulation The speed of the motor is varied
8 Valve circuit test V1/V2 Check of the status of the seals in the presence of
flame
9 Post-purging Post-purging time

17 20068189
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Technical description of the burner
4.9 Operation diagrams
4.9.1 Start-up and shut-down
APS-Supervision: No APS GPS-Supervision: Active
Valve-Supervision: Tightness control Behaviour after flame loss: Restart
Heat demand
Flame signal
Air pressure switch
Gas pressure switch
Ignition device
Gas valve V1
Gas valve V2
Fan
Operation
Fault signal
Fan speed
12 456 7
Standstill check
Prepurge check
Pulsetime V1 Checktime V2
Prepurge
Waiting for
ignition speed
ignition
Flame
stabilization
Pulsetime V2 Checktime V1
Postpurge
APS-Supervision: No APS GPS-Supervision: Active
Valve-Supervision: Gas valve circuit check Behaviour after flame loss: Restart
Heat demand
Flame signal
Air pressure switch
Gas pressure switch
Ignition device
Gas valve V1
Gas valve V2
Fan
Operation
Fault signal
Fan speed
123456 8
Standstill check
Prepurge check
Prepurge
Waiting for
ignition speed
ignition
Flame
stabilization
Gas valve circuit
check
On Off Must disappear Must appear Don´t care Alternately on
InputsOutputs
Standby
9
InputsOutputs
Postpurge
Program step /
Message
Standby
0
Normal operation: Start-up and shut down
3
Burner operation
0
Stop StopIgnition *Prepurge Min. - Max.
Stop Prepurge Ignition *
790
Min. - Max.
Program step /
Message
Standby Burner operation
Postpurge
Standby
Postpurge Stop
0
Thermostat
Flame signal
Air pressure switch
Gas pressure switch
Transformer
Gas valve V1
Gas valve V2
Motor
Operation
Lock-out signal
Fan speed
(Rotations/min.)
Operating status
Description
Stop Pre-purge Ignition Min. - Max. Post-purging Stop
Seal test
Pre-purge
Time for
Speed Standby of start-up Ignition Stabilisation Flame
Operation
Time for
Time for
Time for Post-purging
Standby Standby
Thermostat
Flame signal
Air pressure switch
Gas pressure switch
Transformer
Gas valve V1
Gas valve V2
Motor
Operation
Lock-out signal
Fan speed
(Rotations/min.)
Operating status
Description
Stop Pre-pur. Ignition Min. - Max. Post-pur. Stop
Seal test Pre-purge (pressure switch test) Pre-purge Speed Standby of start-up Ignition Stabilisation Flame
Burner operation
Standby Standby
Valve test Post-purging
On Off Must disappear Must appear Non-influential Variable between on and off
Valve switch test) Pre-purge (pressure blinks V1 check V2
blinks V2 check V1
Valve gas
burner
Fig. 9

20068189 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 is shipped in cardboard packaging, so it is possible to
move it when it is still packaged with a transpallet or fork lift truck.
5.3 Preliminary checks
Checking the consignment
Checking the characteristics of the burner
Check the burner identification label (Fig. 10), showing:
A the burner model;
B the burner type;
C the cryptographic year of manufacturer;
D the serial number;
E the electrical supply data;
F the electrical power consumption;
G the types of fuel used and the relative supply pressures;
H the data of the burner's possible minimum and maximum
output (see Firing rate);
I the category of the appliance/countries of destination;
J Maximum current consumption;
K Burner weight;
L EC Number.
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
The burner output must be within the boiler's firing
rate.
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.
Fig. 10
R.B.L.
ABC
DE
GAS-KAASU
GAZ-AEPIO
X
RIELLO S.p.A.
I-37045 Legnago (VR)
I
G H
G H
F
J
L
K
20116021