Riello 467 T80 Quick start guide

2915832 (5) - 01/2023
Installation, use and maintenance instructions
Heavy oil burner
Three stage operation
CODE MODEL TYPE
3437785 P 200 T/N 467 T80
GB

Original instructions

1 2915832
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Contents
1 Declarations................................................................................................................................................................................ 3
2 Information and general warnings............................................................................................................................................ 4
2.1 Information about the instruction manual .................................................................................................................... 4
2.2 Guarantee and responsibility....................................................................................................................................... 5
3 Safety and prevention................................................................................................................................................................ 6
3.1 Introduction.................................................................................................................................................................. 6
3.2 Personnel training ....................................................................................................................................................... 6
4 Technical description of the burner ......................................................................................................................................... 7
4.1 Burner designation ...................................................................................................................................................... 7
4.2 Models available.......................................................................................................................................................... 7
5 Technical description of the burner ......................................................................................................................................... 8
5.1 Technical data ............................................................................................................................................................. 8
5.2 Electrical data.............................................................................................................................................................. 8
5.3 Operation and efficiency of the burner ........................................................................................................................ 9
5.4 Overall dimensions.................................................................................................................................................... 10
5.5 Standard equipment .................................................................................................................................................. 10
5.6 Firing rates ................................................................................................................................................................ 11
5.7 Test boiler.................................................................................................................................................................. 11
5.8 Burner description ..................................................................................................................................................... 12
5.9 Control box RMO88................................................................................................................................................... 13
6 Installation ................................................................................................................................................................................ 14
6.1 Notes on safety for the installation ............................................................................................................................ 14
6.2 Handling .................................................................................................................................................................... 14
6.3 Preliminary checks .................................................................................................................................................... 14
6.4 Operating position ..................................................................................................................................................... 15
6.5 Boiler plate ................................................................................................................................................................ 15
6.6 Securing the burner to the boiler............................................................................................................................... 16
6.7 Nozzle installation ..................................................................................................................................................... 17
6.8 Fuel oil supply ........................................................................................................................................................... 18
6.9 Pump pressure .......................................................................................................................................................... 19
6.10 Electrical connections................................................................................................................................................ 20
7 Start-up, calibration and operation of the burner ................................................................................................................. 21
7.1 Notes on safety for the first start-up .......................................................................................................................... 21
7.2 Adjustments prior to ignition ...................................................................................................................................... 21
7.3 Combustion head adjustment.................................................................................................................................... 21
7.4 Air shutters adjustments............................................................................................................................................ 22
7.5 Atomising temperature setting................................................................................................................................... 23
7.6 Operation sequence of the burner............................................................................................................................. 24
7.7 Three stage operation ............................................................................................................................................... 24
8 Burners start-up cycle diagnostics ........................................................................................................................................ 25
8.1 Burner start-up cycle diagnostics .............................................................................................................................. 25
8.2 Final checks (with burner operating) ......................................................................................................................... 26
9 Maintenance.............................................................................................................................................................................. 27
9.1 Notes on safety for the maintenance......................................................................................................................... 27
9.2 Maintenance programme .......................................................................................................................................... 27

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Contents
9.3 Opening and closing the burner.................................................................................................................................28
10 Faults - Possible causes - Solutions.......................................................................................................................................29
A Appendix - Accessories ...........................................................................................................................................................31
B Appendix - Electrical panel layout...........................................................................................................................................32

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Declarations
Declaration of Conformity in accordance with ISO / IEC
17050-1
These products are in compliance with the following Technical
Standards:
• EN 12100
•EN267
According to the European Directives:
MD 2006/42/CE Machine Directive
LVD 2014/35/UE Low Voltage Directive
EMC 2014/30/UE Electromagnetic Compatibility
The quality is guaranteed by a quality and management sys-
tem certified in accordance with ISO 9001:2015.
1 Declarations

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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
Centre 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
carried out correctly, cause serious injury, death
or long-term health risks.
ATTENTION
This symbol indicates operations which, if not
carried out correctly, may cause serious injury,
death or long-term health risks.
CAUTION
This symbol indicates operations which, if not
carried out correctly, may cause damage to the
machine and/or injury to people.
DANGER
DANGER: LIVE COMPONENTS
This symbol indicates operations which, if not
carried out correctly, lead to electric shocks with
lethal 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
atmosphere may be present. An explosive
atmosphere 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
DEVICES
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.

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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
Assistance Centre;
The system supplier must carefully inform the user about:
– the use of the system;
– any further tests that may be required before activating the
system;
– maintenance, and the need to have the system checked at
least once a year by a representative of the manufacturer
or another specialised technician.
To ensure a periodic check, the manufacturer
recommends the drawing up of a Maintenance Contract.
2.2 Guarantee and responsibility
The manufacturer guarantees its new products from the 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,
incorrectly 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
established 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
responsibility for the failure to observe the contents of this
manual.
.........................................................................................
.........................................................................................
.........................................................................................
.........................................................................................
ATTENTION
Failure to observe the information given in this
manual, operating negligence, incorrect
installation and carrying out of non authorised
modifications will result in the annulment by the
manufacturer of the guarantee that it supplies with
the burner.

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Safety and prevention
3.1 Introduction
The burners have been designed and built in compliance with
current regulations and directives, applying the known technical
safety rules 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
confidence 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
dangerous.
Specifically:
it can be applied to boilers operating with water, steam,
diathermic oil, and to other uses expressly named by the
manufacturer;
the type and pressure of the fuel, the voltage and frequency of the
electrical power supply, the minimum and maximum deliveries for
which the burner has been regulated, the pressurisation of the
combustion chamber, the dimensions of the combustion
chamber and the ambient temperature must all be within the
values indicated in the instruction manual.
Modification of the burner to alter its performance and
destinations is not allowed.
The burner must be used in exemplary technical safety
conditions. 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
responsible for the machine and for the training of the people
working 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, the user undertakes to ensure that everyone
knows the use and safety instructions for his own duties;
Personnel must observe all the danger and caution
indications shown on the machine.
Personnel must not carry out, on their own initiative,
operations 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
compromise 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
ATTENTION
The manufacturer guarantees safety and proper
operation only if all burner components are intact
and correctly positioned.
must take all the measures necessary to
prevent unauthorised people gaining access
to the machine;
the user must inform the manufacturer if
faults or malfunctioning of the accident
prevention systems are noticed, along with
any presumed danger situation;
personnel must always use the personal
protective equipment envisaged by legislation
and follow the indications given in this
manual.

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Technical description of the burner
4.1 Burner designation
4.2 Models available
4 Technical description of the burner
Designation Voltage Start-up Code
P 200 T/N TC FS1 3N/220-380/60 Diretto 3437785
Series: PRESS
Operation: Two-stage N
Size :
Electrical supply of the system:
3/400/50
3/230/50
Voltage of auxiliaries:
230/50/60
110/50/60
P200 T/N TC
Emission: C01 or... Class 1 EN267
C02 or MZ Class 2 EN267
C03 or BLU
Class 3 EN267
3N/220-380/60 220/60
BASIC DESIGNATION
EXTENDED DESIGNATION
3N / 400V / 50Hz
3 / 230V / 50Hz
230V / 50-60Hz
110V / 50-60Hz
140... 450
Head:
TC Standard head
TL Extended head
Flame control system:
FS1
FS2
Standard (1 stop every 24 h)
Continuous operation only with the use of a
flame detection electrode (ionisation)
FS1
Three-stage T/N
Modulating P/N
Modulating with air/steam atomisation P/NA
Two-stage with separate pump N/ECO
Three-stage with separate pump T/N ECO
Modulating with separate pump P/N ECO
3/220/60 3 / 380V / 50Hz

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Technical description of the burner
5.1 Technical data
Tab. A
(1) Reference conditions: Room temperature 20°C - Barometric pressure 1000 mbar – Altitude 100 m above sea level.
5.2 Electrical data
Tab. B
5 Technical description of the burner
MODEL P 200 T/N
Output (1) kW 515 - 2280
Delivery (1) kg/h 45 - 200
Fuel Heavy oil
- max viscosity at 50 °C mm2/s 50 (7°E) up at 50°C with kit 500 (65°E) at 50°C
Operation • Intermittent (min. 1 stop every 24 hours)
Nozzle number 1 (nozzle with return line)
Standard applications Boilers: water, steam, diathermic oil
Ambient temperature °C 0 - 40
Combustion air temperature °C max 60
Pump kg/h
bar
350
25
Weight of the burner (complete with packaging) kg 190
MODEL P 200 T/N
Electrical power supply V
Hz
3N ~ 220/380 ± 10%
60
Electrical motor (IE3) rpm
kW
V
A
3543
5.5
220/380
19-11
Ignition transformer V1 - V2
I2 - I2
230V - 2 x 6 kV
2A - 35 mA
Absorbed electrical power kW max 20
Protection level IP 40

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Technical description of the burner
5.3 Operation and efficiency of the burner
Tab. C
1st STAGE
Thermal power - Output
Minimum Maximum
kW kg/h kW kg/h
1st nozzle: ignition phase 376 33 763 67
1st+2nd nozzle: intermediate phase 763 67 1516 133
1st+2nd+3rd nozzle: operation phase 1140 100 2279 200
2nd STAGE
Thermal power - Output
Minimum Maximum
kW kg/h kW kg/h
1st nozzle: ignition phase 376 33 763 67
1st+2nd nozzle: 1st stage of operation 763 67 1516 133
1st+2nd+3rd nozzle: 2nd stage of operation 1140 100 2279 200
3rd STAGE
Thermal power - Output
Minimum Maximum
kW kg/h kW kg/h
1st nozzle: 1st stage of operation 513 45 763 67
1st+2nd nozzle: 2nd stage of operation 1026 90 1516 133
1st+2nd+3rd nozzle: 3rd stage of operation 1140 100 2279 200

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Technical description of the burner
5.4 Overall dimensions
The dimensions of the burner are given in Fig. 1.
Bear in mind that inspection of the combustion head requires the
burner to be opened and the rear part drawn back on the slide
bars.
*It is possible with a spacer, upon request.
5.5 Standard equipment
Fig. 1
S10344
Flexible hoses ............................................................. No. 2
Cable clamps............................................................... No. 5
Screws......................................................................... No. 4
Gasket for flange ......................................................... No. 1
Nipples ........................................................................ No. 2
Manual......................................................................... No. 1
Spare parts list ............................................................ No. 1

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Technical description of the burner
5.6 Firing rates
During operation, burner output varies within a minimum and a
maximum limit (Fig. 2).
5.7 Test boiler
The burner/boiler combination does not pose any problems if the
boiler is EC approved and its combustion chamber dimensions
are similar to those indicated in the diagram (Fig. 3).
If the burner must be combined with a boiler that has not been EC
approved and/or its combustion chamber dimensions are clearly
smaller than those indicated in the diagram, consult the
manufacturer.
The firing rates were obtained in special test boilers, according to
EN 267 standard.
In Fig. 3 you can see the diameter and length of the test
combustion chamber.
Example:
Output 650 Mcal/h (407 kW): diameter 60 cm - length 2 m.
MODULATING RATIO
The modulating ratio, obtained in test boilers according to
standard (EN 267) is 4:1.
ATTENTION
The FIRING RATE was obtained with an ambient
temperature of 20°C and a barometric pressure of
1000 mbar (approx. 100m above sea level), with
the combustion head adjusted as shown on page
21.
ATTENTION
When the burner operates with only one or two
nozzles, the pressurization conditions are im-
proved and no problems arise.
Fig. 2
Pressure in combustion
Thermal power
limit
safety
Working field:
kg/h
kW
S10345
chamber - mbar
Fig. 3
Combustion chamber
m
D497

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Technical description of the burner
5.8 Burner description
1 Suction line
2 Return line
3 Air shutter opening motor
4 Pump pressure adjustment screw
5 Manometer plug (G 1/8)
6 Vacuometer plug (G 1/2)
7 Reset push-button of the motor overload relay
8 Electric board
9 Cable clamps
10 Control box reset push-button and lock-out lamp
11 Adjustment thermostat
12 Regulating bush for combustion head
13 Wiring terminal board
14 Ignition transformer
15 Filter
16 Valves group
17 Manometer
18 Lamp
19 Commutator
20 Low limit thermostat
21 High limit thermostat
22 Timer
Fig. 4
D2730

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Technical description of the burner
5.9 Control box RMO88...
Warning
 All interventions (assembly and installation operations,
assistance, etc.) must be carried out by qualified personnel.
 Before modifying the wiring in the control box connection
area, fully disconnect the system from the power supply
(omnipolar separation). Check the system is not powered
and cannot be accidentally reconnected. Failure to do this
will lead to the risk of electrocution.
 Protection against electrocution from the control box and all
connected electric components is obtained with the correct
assembly.
 Before any intervention (assembly and installation opera-
tions, assistance, etc.), ensure the wiring is in order and that
the parameters are correctly set, then make the safety
checks.
 Falls and collisions can negatively affect the safety func-
tions.
In this case, the control box must not be operated, even if it
displays no evident damage.
 Press the reset button of the burner lockout command or the
reset button (by applying a force of not more than 10 N),
without the aid of tools or sharp objects.
For the safety and reliability of the 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.
Technical data
Mechanical structure
The control box is made of plastic to resist knocks, heat and
flame propagation.
The control box contains the following components:
• a microprocessor that controls the program sequence, and a
relay for controlling the load
• an electronic flame signal amplifier
• a built-in reset button with 3 signalling colours (LED) for status
and error messages.
ATTENTION
To avoid accidents, material or environmental
damage, observe the following instructions!
The control box RMO88... is a safety device!
Avoid opening or modifying it, or forcing its opera-
tion. Riello S.p.A. cannot assume any responsibil-
ity for damage resulting from unauthorised
interventions!
Mains voltage AC 220...240 V +10 % / -15 %
Mains frequency 50 / 60 Hz ±6%
Power absorption 20 VA
Protection level IP20
Safety class I
Weight approx. 260g
Cable length
Thermostat cable
Air pressure switch
Gas pressure switch
Remote reset
CPI
Max. 20 m at 100 pF/m
Max. 1 m at 100 pF/m
Max. 20 m at 100 pF/m
Max. 20 m at 100 pF/m
Max. 1 m at 100 pF/m
Environmental conditions:
Operation
Climatic conditions
Mechanical conditions
Temperature range
Humidity
DIN EN 60721-3-3
Class 3K3
Class 3M3
-20...+60°C
< 95 % r.h.
Fig. 5
S8906

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Installation
6.1 Notes on safety for the installation
After carefully cleaning all around the area where the burner is to
be installed, and arranging for the environment to be illuminated
correctly, proceed with the installation operations.
6.2 Handling
The burner packaging includes a wooden platform, it is therefore
possible to handle the burner (still packaged) with a pallet truck
or fork lift truck.
6.3 Preliminary checks
Checking the consignment
Check the identification label of the burner, showing:
the model (see Ain Fig. 6) and the type of burner (B);
the year of manufacture, in cryptographic form (C);
the serial number (D);
the absorbed electrical power (E);
the types of fuel used and the relative supply pressures (F);
the minimum and maximum possible output data of the
burner (G) (see Firing rate).
6Installation
DANGER
All the installation, maintenance and disassembly
operations must be carried out with the electricity
supply disconnected.
ATTENTION
The installation of the burner must be carried out
by qualified personnel, as indicated in this manual
and in compliance with the standards and
regulations of the laws in force.
DANGER
The combustion air inside the boiler must be free
from hazardous mixes (e.g.: chloride, fluoride,
halogen); if present, it is highly recommended to
carry out cleaning and maintenance more
frequently.
ATTENTION
Burner handling operations can be highly
dangerous if not carried out with the greatest
attention: distance unauthorised personnel, check
integrity and suitability of the means available.
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
quickly move if the burner should fall).
During handling, keep the load at no more than
20-25 cm from the ground.
After positioning the burner near the installation
point, correctly dispose of all residual packaging,
separating the various types of material.
CAUTION
Before proceeding with the installation operations,
carefully clean all around the area where the
burner will be installed.
CAUTION
After removing all the packaging, check the
integrity of the contents. In the event of doubt, do
not use the burner; contact the supplier.
The packaging elements (wooden cage or
cardboard 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.
ATTENTION
A burner label that has been tampered with,
removed or is missing, along with anything else
that prevents the definite identification of the
burner makes any installation or maintenance
work difficult.
Fig. 6
D2582
A - B CDE
F
G

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Installation
6.4 Operating position
6.5 Boiler plate
For the combustion head projection carefully follow the boiler
manufacturer indications.
A proper protection with refractory material on the combustion
head projecting into the combustion chamber shall be made,
when boilers with frontal smoke box are used.
ATTENTION
The burner is designed to work only in
positions 1 and 4 (Fig. 7).
Installation 1is preferable, as it is the only
one that allows the maintenance operations
as described in this manual.
The installation 4 permits the operation but
makes the maintenance and inspection
operations of the combustion head more
difficult.
DANGER
Any other position could compromise the
correct operation of the appliance.
The installation 5is prohibited for safety
reasons.
Fig. 7
2 3 4 51
20172679
Fig. 8
S10346

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Installation
6.6 Securing the burner to the boiler
To separate the burner from the cast iron blast tube, proceed as
follows:
remove the cover 1)(Fig. 9), the split pin and pin 2), the nuts
3) and the screws 4).
Pull out the blast tube from the burner by approx. 100÷120
mm and release the driving fork of the head 6) by removing
the split pins 5).
At this point, it is possible to fully pull out the blast tube from
the pins 7).
Fix the blast tube to the boiler by inserting the insulating seal
8) in-between.
After fitting the selected nozzle, fit the burner on the pins 7)
leaving it open by approx. 100 ÷ 120 mm.
Refit the fork 6) fixing it with the split pins 5).
Completely close the burner fastening it with screws 4), fit
the nuts 3), the pin and split pin 2).
Provide an adequate lifting system.
Be careful as some drops of fuel may leak out
during this phase.
ATTENTION
The seal between burner and boiler must be
airtight.
100÷120mm
1234768
5
Fig. 9
D2590

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Installation
6.7 Nozzle installation
The burner complies with the emission requirements of the EN
267 standard. In order to guarantee that emissions do not vary,
recommended and/or alternative nozzles specified by Riello in
the Instruction and warning booklet should be used.
6.7.1 Nozzle assembly
At this installation stage the burner is still separated from the blast
tube; therefore it is possible to fit the nozzle with a 16 mm wrench.
Do not use any sealing products such as: gaskets, tape or
sealants. Be careful to avoid damaging the nozzle sealing seat.
6.7.2 Nozzle selection
First of all state the maximum output required with all three
nozzles in operation.
On the base of the maximum output choose, from Tab. D, three
related nozzles.
Nozzles: 60° - Pump pressure: 25 bar
The references of Tab. E should be followed in case of need of:
– modification of the pump pressure in order to vary the output,
– different composition of the 3 nozzles group,
– knowledge of the output in 1st and 2nd stage.
AVAILABLE NOZZLES
Tab. D
Tab. E
ATTENTION
It is advisable to replace the nozzle once a year
during periodical maintenance.
CAUTION
The use of nozzles other than those specified by
Riello S.p.A. and inadequate regular maintenance
may result into emission limits non-conforming to
the values set forth by the regulations in force, and
in extremely serious cases, into potential hazards
to people and objects.
The manufacturing Company shall not be liable
for any such damage arising from non-
observance of the requirements contained in this
manual.
ATTENTION
Do not use any sealing products such as:
gaskets, tape or sealants.
Be careful to avoid damaging the nozzle
sealing seat.
The nozzle must be screwed into place tightly
but not to the maximum torque value
provided by the wrench.
Fig. 10
D2741
1°
2°3°
Nozzle
GPH 60°
Total Output
kg/h 1°+2°+3°
1° 2° 3° 25 bar 28 bar
5.00 5.00 5.00 96 99
5.50 5.50 5.50 105 111
6.00 6.00 6.00 104 120
6.50 6.50 6.50 123 132
7.00 7.00 7.00 132 141
7.50 7.50 7.50 141 150
8.00 8.00 8.00 150 159
8.30 8.30 8.30 156 165
8.50 8.50 8.50 159 171
9.00 9.00 9.00 168 180
9.50 9.50 9.50 177 189
10.0 10.0 10.0 186 198
10.5 10.5 10.5 195 -
10.5 10.5 11.0 199 -
GPH 25 bar
kg/h
28 bar
kg/h
5.00 32 33
5.50 35 37
6.00 38 40
6.50 41 44
7.00 44 47
7.50 47 50
8.00 50 53
8.30 52 55
8.50 53 57
9.00 56 60
9.50 59 63
10.00 62 66
10.50 65 70
11.00 69 73

2915832 18
GB
Installation
6.8 Fuel oil supply
6.8.1 Ring supply line
For heavy oil with viscosity up to 50°E/50°C.
The oil could easily flow through the pipes if those are
properly seized, protected and heated (by electricity, steam
or hot water).
The forwarding pump capacity should be all the least double
of that of the burner pump. If several burners are supplied
through the same ring supply line, the forwarding pump
should have a capacity of approx. 30% more than the sum of
the single burners outputs.
For starting-up: after excluding the burner by the shutter
valves 5) let the oil flow into the supply ring up to reach the
required circulation; after than open the valves and supply
normally the burner.
Key
Explosion danger due to fuel leaks in the
presence of a flammable source.
Precautions: avoid knocking, attrition, sparks and
heat.
Make sure the fuel shut-off valve is closed before
performing any operation on the burner.
ATTENTION
The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.
ATTENTION
Before starting the burner make sure that the
return pipe line is not clogged.
Any obstruction would cause the pump seals to
break.
Oil pipes must be completely airtight.
Fig. 11
D2734
1-Tank (heated for thick oil)
2-Filter (oil resistance > 7°E / 50°C)
3-Transfer pump
4-Control pressure gauge
5-Gate valves for burner disabling (coupled)
6-Burner (with heavy oil kit code 3000721)
7-Pressure regulator
8-Filter (oil resistance > 7°E / 50°C)
9-Burner pump