Riello BP R 75 MB Quick start guide

mod.: BP R 75 MB
BP R 150 MB
BP R 300 MB
BP R 450 MB
BP R 600 MB
BP R 800 MB
High ratio monobloc
gas burner
Installation, use and maintenance instructions
EN01_BPRMBMD_RBL_0815
C15XXXXR

GENERAL SAFETY STANDARDS FOR THE INSTALLATION, USE AND MAINTENANCE
The manufacturer declines all contractual or extra-contractual liability for injury or damage to persons, animals or objects caused by:
incorrect installation or setting; improper, unreasonable or incorrect use; failure to follow the instructions given in the manual supplied with the burner;
operations performed by unauthorised persons.
1 - INSTRUCTION MANUAL
* The instruction manual supplied with the burner is an integral, essential part of the product, from which it must not be separated.
* Read the manual carefully; it contains important information regarding burner installation use and maintenance.
* Keep the manual for future reference.
2 - PACKING
* After removing all packing materials, check the contents to make sure that no damage has occurred during shipping.
When in doubt do not use the burner and contact the supplier.
* Packing materials (wooden crates, cardboard boxes, nails, clips, plastic bags, etc.) may be a source of pollution; collect all materials and dispose of properly.
3 - BURNER AMBIENT
* The burner must be installed in an available ambient where there are some openings in order to have ventilation and to assure a good air flow for combustion.
* To be sure that all comburent air fan air intakes are free and that there aren't obstructions to fan ventilation.
* To be sure that there aren't flammable or explosive substances.
* Burner must be protected by rain, snow or frost, except if it has been planned to work in these atmospheric conditions.
4 - FUELS
* The burner must be stoked with the type of fuel for which it has been preset as indicated on the rating plate and in the Instruction Manual.
* Gas supply pressure to the burner and the burner head must be within the values shown in the manual.
* The gas supply line must be sized in consideration of the maximum delivery of the burner and must be fitted with all safety and control devices prescribed by law.
* Prior to supply fuel to the unit, clean burner pipes thoroughly; install a filter to prevent residues from impairing proper operation.
* Make sure that all internal and external seals on the fuel supply are all right.
* LPG tanks must be positioned in compliance with current regulations.
5 -ELECTRICAL SUPPLY
* Make sure that the electrical power supply used for connection corresponds to the specifications indicated on the rating plate and in the manual.
* Make sure that the burner is connected to an efficient earth system in compliance with current safety standards.
When in doubt, have the electrical system checked thoroughly by a licensed electrician.
Never use gas pipes for earthing electrical installations.
* The electrical system and all cable sections in particular, must be adequate to deliver the maximum absorbed power value indicated on the rating plate
and in the manual.
* For the mains electricity supply to the burner:
- do not use adapters, double adapters or extension cords;
- install a multipolar switch, as specified by current safety standards.
* If the mains power cable is found to be faulty, have it replaced by an authorised technician.
* Never touch the burner with wet parts of the body and or when not wearing shoes.
* Never stretch power supply cables.
* Verify that phase and neutral wire haven’t been inverted.
6 - THE BURNER
The burner must only be used in the applications for which it was designed. All other applications are to be considered inappropriate and dangerous.
Particularly:
- Fuel type and pressure, electricity supply frequency and voltage, minimum and maximum delivery settings, duct counter-pressure, combustion chamber size, ambient
temperature must all be contained within the limits given in the instruction manual.
* Use only original spare parts when equipping the burner with optionals, kits or accessories.
* Do not modify the equipment or alter its performance or applications.
* Do not open or tamper with components other than those subject to maintenance.
* Only parts indicated by the manufacturer may be replaced.
* Never touch the hot parts of the burner; these parts, usually located near the flame, heat up during operation and may remain hot for some time even after
the burner has switched off.
* When the burner is not to be used for a certain period of time, turn off the main power switch controlling all system electrical components and close the
manual valve on burner fuel supply line.
When the burner is no longer required for use, have the following operations carried out by a licensed technician:
- disconnection of the electrical power cable from the main power switch;
- closure of the manual valve on the burner fuel supply line with locking or removal of the command hand wheel.
7 - BURNER INSTALLATION AND SETTING
* Burner installation and setting must be performed exclusively by qualified personnel in conformity with the instructions given in the manual and with current
regulations and safety standards.
* The burner must be secured tightly to the piping in such a way that the flame is generated only inside the duct. Then:
- Set the fuel delivery according to the power required by the burner within the limits listed in the manual.
- Adjust comburent air flow to ensure that burner operation is always in excess-air.
- Check that all safety and adjustment mechanisms work properly.
- Make sure that all mechanical lock fittings on the adjustment mechanisms are secured tightly.
8 - BURNER MALFUNCTION
* If the burner stops working and goes into lock-out and does not resume operation after two or three lock-out reset attempts, contact a qualified technician.
* If the burner breaks down and or malfunctions, disconnect the power supply, do not attempt to repair and contact a qualified technician.
All burner repairs are to be performed exclusively at a technical servicing centre authorised by the manufacturer using original spare parts only.
Failure to observe the above may jeopardise equipment reliability and safety standards.
9 - MAINTENANCE
* Burner maintenance must be performed by qualified personnel regularly or at least once a year according to the information given in the manual.
* Prior to performing any burner maintenance or checking operations, turn off the power supply at the main switch.
10 - GAS LEAKS
* If you smell gas, do not switch on or off any electrical appliances, do not use the telephone or anything else which could generate sparks.
Close the manual gas shut-off cock and contact a qualified servicing technician immediately.

1
BURNER mod.: BP R ... MB
INDEX
1 GENERAL INFORMATIONS ...........................................................2
2 DESCRIPTION.................................................................................2
3 KINDS OF INSTALLATIONS...........................................................2
4 TECHNICAL DATA......................................................................................3
5 OVERALL DIMENSIONS.................................................................3
6 INSTALLATION................................................................................4
6.1 Operations before installation..........................................................4
6.2 Burner hoisting and lifting points......................................................4
6.3 Burner fixing flange..........................................................................4
6.4 Installation........................................................................................4
6.5 Dimensioning for installation............................................................5
7 COMBUSTION AIR..........................................................................5
8 FUEL SUPPLY.....................................................................................5
9 CONTROL BOARD..........................................................................6
10 BURNER STARTING..........................................................................7
10.1 Checks .............................................................................................7
10.2 Starting.............................................................................................7
10.3 Loadness checks .............................................................................7
10.4 Regulations before starting..............................................................8
10.4.1 Gas pressure stabilizer....................................................................8
10.4.2 Solenoid Valves .......................................................................................8
10.5 Running............................................................................................9
10.5.1 Servomotor adjusting.......................................................................9
10.5.2 Combustion air Pressure switch................................................... 10
10.5.3 Gas MAX. Pressure switch........................................................... 10
10.5.4 Gas MIN. Pressure switch ............................................................ 10
11 MAINTENANCE.............................................................................11
12 EVALUATION OF CONFORMITY .................................................11
13 TROUBLESHOOTING.................................................................. 12
14 TECHNICAL CHARACTERISTICS............................................... 14
15 WORKING VALUES..........................................................................14
ATTACHED DOCUMENTS:
- FLOWS / PRESSURES SCHEDE
- DRAWING WITH SPARE PARTS LIST
- ELECTRICAL SCHEME
- ASSEMBLED EQUIPMENT DOCUMENTATIONS
- CERTIFICATES OF CONFORMITY
EN01_BPRMBMD_RBL_0815

2
1) GENERAL INFORMATIONS
The burners of the line “BP R ... MB”are designed to work in applications in which the burner works in suction. The
main characteristics of this line of machines are:
• High ratio between maximum and minimum power • Low supply pressure
• Contained flame length • Easy installation and maintenance
2) DESCRIPTION
The blowed air burners of the “BP R ... MB”line was studied and realized in order to obtain a combustion apparatus
with the maximum efficiency, working extreme flexibility and possibility of each kind of configuration of assembling.
The power adjusting is modulating gas with manual adjusting air. In detail:
• The user can change the gas flow from his main control panel by adjusting the ratiomotor connected to the modulat-
ing valve and he can decide changing the fuel capacity and maintaining the quantity of combustion air, it is possible
obtain large modulation values.
• The user can set the flow of combustion air in manual mode by modifying the opening / closing position of the but-
terfly valve positioned between the pressure outlet of the fan and the inlet of the burner. The butterfly valve is provided
with a graduated scale.
This solution allows to use the burner countless stages of regulation. See in the table (Page 3) the values of the mini-
mum and maximum powers with their modulation ratio depending from the kind of burner.
We have tried to reduce at the minimum the flame length, which in the worst conditions of work does not go over 900
mm, so the pipeline dimensions are reduced as much as possible.
Fuels forecasted are Methane Gas or L.P.G. (to define at the moment of order), which pressure upstream the ramp can
vary from 100 to 360 mbar according to the burner model. These burners have completely automatic working, ignition
by electrode, detection by ionization electrode or by UV cell.
The burners are supplied completely assembled in the standard version with gas ramp and control board (Pic. 1).
2) KIND OF INSTALLATION
These burners can be used in all the air heating processes of the direct kind, recirculating and no recirculating ones
as: dryers, spray dryers, incinerating plants, heating plants. Fields of use are: ceramic, brick, paper, textile, chemical,
petrochemical, metalmecanic, roasting, drying, tobacco. The kind of configuration of the burners of this line allows the
following applications:
a) Externally to the duct with outside suction air (Pic. 2);
b) Externally to the duct with process air blow-by (Pic. 3, Pic. 4);
The configuration of the burner allows easy installation and maintenance. The whole burner could be detected without
take it away from the duct.
EN01_BPRMBMD_RBL_0815
Illustrative picture, for the right configuration please
refer to the overall drawing you will find in attached
to this handbook
Combustion
Air Fan
EXIT
FLAME
Flame
Tube
Air Flow
Manual
Adjust. Damper
COMBUSTION
AIR INLET
Main Gas
Solenoid Valve
Min. Gas
Press. Switch
Ignition
Electrode
3 Ways Air
Solenoid Valve
Flame
Viewer
PGA - Fuel
Press. Intake
GAS
INLET
Safety Gas
Solenoid Valve
Max. Gas
Press. Switch
Fan
Motor
Servomotor
DP1 - DP2 - Air
Press. Intakes
Combustion Air
Press. Switch
Detection
Probe
Multipolar
Connection
Filter
Stabilizer
Voltage
Presence
Burner Insertion
"0 - 1" Selector
Modulating
Gas Valve
Thermal
Trip
Burner
ID Label
Main
Switch
Burner Reset
Button
Pic. 2
Pic. 1
Pic. 3 Pic. 4

3
- Dimensions are guidelines only.
4) TECHNICAL DATA
The above mentioned performance data are described at their maximum power. Pressures showed are guidelines only. Gas
pressures are refer to Methane gas.
* 30% excess of air.
** With neutral combustion chamber. For different conditions, contact our Technical Service.
Specials executions on request.
Model BP R 75 MB BP R 150 MB BP R 300 MB BP R 450 MB BP R 600 MB BP R 800 MB
Output Min. 5 kW (4,3 Mcal/h) 6 kW (5 Mcal/h) 9 kW (7,5 Mcal/h) 18 kW (15 Mcal/h) 28 kW (25 Mcal/h) 35 kW (30 Mcal/h)
Output Max. 87 kW (75 Mcal/h) 175 kW (150 Mcal/h) 350 kW (300 Mcal/h) 525 kW (450 Mcal/h) 700 kW (600 Mcal/h) 930 kW (800 Mcal/h)
Fuel CH4 (8250 kcal/Nm3) / G.P.L. (22500 kcal/Nm3)
Turn down ratio 18 : 1 30 : 1 40 : 1 30 : 1 25 : 1 25 : 1
Operation Modulating Gas / Manual Air Adjusting
Max. excess of air 50% to 87 kW 50% to 175 kW 50% to 350 kW 50% to 525 kW 50% to 700 kW 50% to 930 kW
Flame Diameter * 160 mm 200 mm 250 mm 300 mm 300 mm 300 mm
Flame Lenght * 600 mm 600 mm 600 mm 600 mm 600 mm 1000 mm
Gas Supply pressure ** 50 ÷ 200 mbar 100 ÷ 200 mbar
Electrical Supply 220 V 50 Hz Singlephase 400 V / 50Hz Threephase
Ignition Transformer 220 V 1x15 kV 25 mA
Motor 0,18 kW 0,18 kW 0,37 kW 0,37 kW 1,1 kW 1,1 kW
Power Consumption 0,3 kW 0,3 kW 0,5 kW 0,5 kW 1,25 kW 1,25 kW
Weight 45 kg 50 kg 62 kg 65 kg 65 kg 70 kg
EN01_BPRMBMD_RBL_0815
5) OVERALL DIMENSIONS (mm)
FOR THE OVERALL DIMENSIONS AND THE SPARE PARTS,
PLEASE REFERRED TO THE DRAWINGS:
2036630
1645500
ENCLOSED AT THIS MANUAL

4
6) INSTALLATION
6.1) Operations before installation
Unpack the burner and verify that there are no damages.
If you have doubt do not use the burner and ask explanations
to the supplier giving him the code No, which is on the data
plate, and the shipping documents.
Open the control panel, if supplied, and verify if it has damages
or if there are interrupted electrical connections.
Make sure that the person who will instal the plant read and
understand fully this operation manual and that all relevant
documents and drawings are available.
If any part of this manual is not clear please ask explanations
immediately the customer.
In the place of installation of the burner there should be the
general gas supply line and the electrical panel, if it is not part
of the burner.
Be sure that the hole of the combustion chamber is suitable to
the requested burner (Pic. 5).
Burners are supplied complete, tested and ready to work.
6.2) Burner hoisting and lifting points
Upon installation the burner must be bound with one or more
“self-tightening lifting slings” suitable to support its weight. The
burner then has to be lifted by adequately sized equipment
(e.g. crane, hoist, etc.).
The lifting operations must be carried out by at least two opera-
tors wearing personal protection equipment, especially boots
and gloves. The burner must be lifted carefully and accompa-
nied by an operator gripping the back of the main body so as
to prevent the load from hazardously rocking.
The burner must be hoisted ONLY by its main body as shown
in Pic. 5a. The same procedures and recommendations are
valid when removing the burner from the installation.
ATTENTION! Care should be taken during installation: for
the lifting do not use the feeding supply, the electrical fan
or the control board because they can be damaged.
6.3) Burner Fixing Flange
The user has to prearrange the anging for joining the burner to
the combustion chamber.
Make sure that the connection ange scaling will be conforming
to the requested burner model.
The table in Pic. 6 shows the anging dimensions and the mini-
mum opening on the combustion chamber necessary for the
housing of the burner blast tube.
The burner xing has to be carried out as indicated in Pic. 6
with the kit material supplied.
6.4) Installation
The burners of the BP R ... MB line are studied for installation
in duct where there is suction air or atmospheric pressure.
The combustion chamber application could be done with a
perfect sealing (Pic. 7).
In case the burner works in depression and if you need to suck
a percentage of ambient air it is possible maintain a free space
EN01_BPRMBMD_RBL_0815
Pic. 7
Pic. 6
Legend Pic. 6:
1 - Burner xing ange (installer care)
2 - Stud bolt M8
3 - Gasket
4 - Washer D.8
5 - Nut D.8
(mm)
Mod. ØB ØC ØD ØE ØF ØL1 No. X
BP R 75 ... 110 220 140 220 195 M8 8
BP R 150 ... 145 250 175 250 225 M8 8
BP R 300 ... 190 320 220 320 290 M8 8
BP R 450 220 370 250 370 340 M8 8
BP R 600 220 370 250 370 340 M8 8
BP R 800 220 370 250 370 340 M8 8
Make a perfect seal
Combustion Chamber
Pic. 5a

5
of suction air that allows a passage air speed from 5 to 15 m/s
(Pic. 8).
6.5) Dimensioning for installation
Making the dimensioning of the duct where the burner will be
installed it is necessary take into consideration that the nozzle
must protrude of at least 60 mm from the internal part of the
duct. It is also advisable consider a clearance downstream the
burner of 1000 mm.
This allows a right development of the flame and avoids that it
could damage parts, which get in direct contact with the same
flame.
In case of an installation of the burner where downstream of it
there are changes of direction, it is necessary keep the channel
straight for 1000 mm (Pic. 9).
For changes of section it is sufficient a distance of 700 mm
(Pic. 10).
The process air speed does not influence the good working of
the burner.
The working field can vary from 4 ÷ 5 m/s to 20 ÷ 25 m/s; the
good quality of the working does not change even if there are
speeds a little bit inferior or superior.
Optimum process air speed is 10 m/s with a flame development
in length at maximum power of 600 mm.
Increasing the process air speed around the burner there is
a flame shortening, decreasing the air an extension of the
flame.
What is always very important is that the airflow must be as
uniform as possible.
As said before, this line of burners, depending from the kind of
construction, can work with duct where there is recirculating air
up to temperature of 700 °C without considering the quantity
and the quality of recirculating air because combustion air is
completely supplied by a specific electric fan.
ATTENTION! If you need an installation with the burner in
machine with combustion chambers in pressure, please
get in contact with our technical department.
7) COMBUSTION AIR
This line of burner was dimensioned for working both in stoi-
chiometric ratio and with high air excess.
All the machines are equipped with combustion air electrical
fan, which first supplies a quantity of air sufficient for the good
working of the burner and moreover supplies a differential pres-
sure between combustion air and process air (see paragraph
10.5.2).
The combustion air capacity adjusting and, consequently
the pressure difference between this and the process air, is
obtained by a suitable adjusting lock placed on the pressing
mouth of the electrical fan.
If you need to guarantee a good quality of combustion air it is
necessary place a filter on the suction mouth of the electrical
fan which allows to the burner of generate, during combus-
tion, hot gases without dusts which could damage the material
treated by the plant.
It is advisable make a weekly control of the filtering system.
EN01_BPRMBMD_RBL_0815
Pic. 11
Pic. 9
Pic. 10
Combustion Air
Pressure Switch
Process Air
Pressure Switch
Pic. 8
Let a free space
for the air passage
Combustion Chamber

6
GAS PIPELINE MUST NOT BE USED FOR EARTH DISCHARGE
8) FUEL SUPPLY
The burner is supplied with completely assembled fuel supply ramp. The ramp complies with UNI EN 746-2 (See
example Pic. 12). It must be completed by a ball valve for gas interception (1), vibration damping joint (3) for the sepa-
ration of the machine from the plant.
Moreover it has filterstabilizer (5 + 6) that has double function: filter and stabilise the fuel during the control of the mini-
mum pressure switch (7) which verifies if there is a sufficient pressure of the fuel.
Following the rule, the safety of the ramp is guarantee by the electromagnetic valves group, two in class A with fast
opening and closing (8, 9). The fuel modulation is made by a suitable motorized valve (10) and the right gas pressure
into the circuit is guaranteed by the maximum pressure switch (12).
9) CONTROL BOARD
Burner electrical plant (calibration) is made in compliance of actual safety rules. It's necessary to use for last electrical
connections flexible cables according to EN 60335-1 rule.
• If under sheath of PVC at least H05 W-F kind
• If under sheath of rubber at least H05 RR-F kind
Every maintenance intervention must be done by specialized personnel.
It is very important that the conductors of phase and neutral are connected to their terminals because their inversion
could cause damages to the equipment and consequently the shutdown of the burner.
Also the connection of the heart should be controlled to guarantee a good connection (a wrong heart connection is often
the cause of bad working of the burner and in particular when an ionization electrode for flame detection is used). If
the burner is equipped by an edge control board, the net supply must be interrupted by a correct disconnecting switch
remote positioned.
If the control board isn’t positioned on the burner but placed in remote position, it’s enough that the general switch with
locked-door is positioned on the front of the board. The distance and the dimension between the board and the burner
must be corrected to guarantee a direct visual control of the ignition machine and blowing-out phases.
The same condition has to be respected when there is a device for a remote unlock.
If there isn’t any precision (i.e: burner controls for continuously operating with self-checking) the equipment needs a
programmed blowing-out every 24 hours, in that way it is possible to control the functionality of the detection flame
system, both effectuated by an electrode or by an UV cell.
Once a year, it’s necessary to control that all the cables are well fixed to their contact screw and that cable-press.
EN01_BPRMBMD_RBL_0815
Pic. 12
EXAMPLE OF GAS RAMP ACCORDING TO UNI EN 746/2 01 Ball valve
02 Manometer
03 Gas bellows unit
04 Pressure intake
05 Filter
06 Pressure stabilizer
07 Minimum Gas Pressure switch
08 Main Solenoid Valve
09 Safety Solenoid Valve
10 Servomotor
11 Modulating Gas Valve
12 Maximum Gas Pressure switch (optional)
13 Pressure intake
14 Burner
15 Combustion Air Filter (*)
16 Combustion Air Adjusting Damper
17 Electrical Fan
18 Combustion Air Pressure Switch
19 Pressure intake
20 3 Ways Air Solenoid Valve
21 Pressure intake
(*) Only in case of powdered air

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10) BURNER STARTING
The procedure described below is given as a guide to commissioning, which must be undertaken by a trained and
experienced combustion technician.
This procedure should be followed not only on burner first lighting, but also when any repairs have been carried out, or
it has been out of commission for any time.
10.1) Checks
•Be sure that all the mechanical end electrical drawings are available.
• Check that the gas and electrical supplies are turned off.
• Check that the whole plant, in which will be contained the burner, is placed in the safety zone and that the switches
are disconnected.
• Check that any moving part of the plant will not damage any part burner or its gas or electrical supplies, and that no
people will come into contact with it.
• Check that there is the gas, and that this is the right fuel to the right working pressure.
10.2) Starting
Before gas inlet into the burner, at least two “dry runs” must be taken place without any problem during cycle.
No safety equipment may be bypassed during these runs.
10.3) Loadness checks
a) As regards as fuel, check interception cocks, have been installed and adjusting valves are closed. Check the burner
valve set is assembled correctly.
b) Start the main duct fan by plant control board and verify the impeller rotation.
c) Adjust the differential pressure switch (See paragraph 10.5.2)
d) Give tension to the burner and close the remote connection contact.
e) Check that ratio-motor and butterfly valve operate correctly.
f) Operate the “Burner Run” button by the burner control board.
g) Check the direction of rotation of the combustion air fan. Fan rotor should have to rotate in the same direction of air
entry in duct.
Combustion air fan start, and (after a "pre-purge" time xed by the ame control equipment) a spark should appear on
the ignition electrode.
After about 5 seconds, when gas valves open, the spark should disappear and the ignition sequence stop because gas
pressure at the pressure switch is not su󰀩cient.
If the spark fails to appear:
• Check the distance between the conductor and the ignition electrode was correctly.
It should be 2 ÷ 3 mm.
• Check the electrical circuit.
• Check the setting and the position of the pressure switches.
• Check all interlocks.
Repeat the test
h) If the detection flame system is fitted by a U.V. cell proceed as follows:
•Remove the U.V. cell from its housing (shielding it from direct daylight or artificial light) and expose it to the light from
a cigarette lighter, match or similar flame.
• Operate the “Burner Run” button.
The gas burner controls should go to “lockout” immediatly after the purge period.
EN01_BPRMBMD_RBL_0815

8
If does not:
**) Check the electric circuit and the U.V. cell.
**) Measure the output signal from the U.V. cell while it is looking at the flame.
It should correspond with those given in the manufactures leaflet.
If it is less, check the alignment of the cell in its tube, or replace the cell.
• If instead the detection ame system is tted by an ionization electrode, control that the detection ame, grounded whit
the structure burner, "goes to lockout".
Repeat the test
10.4) Regulations before starting
• Open the manual valves which are upstream of the safety gas solenoid valve which is on the gas supply.
• Adjust the gas minimum pressure switch.
• Adjust the gas maximum pressure switch
• Adjust the air pressure switch
• Take away the air from the gas pipe opening the screw which is on the gas minimum pressure.
It is advisable carry the air outside of the building with a plastic pipe until you can smell the gas.
• Place an "U manometer" on the gas pressure intake downstream from the modulating valve. It gives the maximum
power of the burner.
• Connect to the two gas solenoid valve two bulb or tester to control the moment when arrive the voltage.
Before ignite the burner, it is advisable adjust the gas supply so the ignition take place in safe conditions, with a little
gas capacity.
10.4.1) Gas pressure stabilizer (Pic. 12)
The calibration of the pressure in exit is regulated acting on the
adjusting screw; turning clockwise the pressure will increase,
turning counterclockwise it will decrease. The pressure intakes
comply with UNI 8978 placed downstream of the adjuster, they
allow to measure the pressures, changing from a gas family to
another, choosing the
suitable spring and acting on the adjusting screw. Verify with a
pressure gauge the value of the needed stabilized pressure.
10.4.2) Solenoid valves (Pic. 13)
Flow rate adjustment:
1. Remove coil fastener cap.
2. Using a 4 mm Allen wrench, remove the locking dowel.
3. Located under the locking dowel is the ow regulation screw.
Use the Allen wrench to set it.
4. Turn wrench clockwise to decrease or counter-clockwise to
increase ow rate (factory setting is max. ow rate).
5. When adjustment is completed, screw back the locking dowel
and cap.
For the closing of the valve it is necessary that the tension to the
terminals of the coil be 0 Volt.
EN01_BPRMBMD_RBL_0815
Pic. 12
Pic. 13

9
10.5) Running
After what above described and after the "pre-washing" period the burner should start.
If the engine starts but the flame does not appear and the equipment goes to shutdown, restart and wait a new ignition
attempt.
If the ignition does not happen the cause could be that gas not reaches the combustion head within the safety time of
2 seconds, so it is necessary increase the capacity of ignition on the gas general solenoid valve.
If ignition does not happen after 3 attempts:
• Increase the gas exit pressure from the adjuster screwing of 1-2 turns the capacity adjusting screw.
• Verify that the interception valves are operating
• Adjust the minimum level of the modulant adjusting valve if it has a reduced capacity
• Verify that the ignition electrode made a good jump
• Verify that the detection electrode be not in short
Control test for each condition must happen without problems, tests must be carried out with the burner run-
ning.
• fuel supply stop (the burner stops without goes to lockout)
• combustion air electrical fan stops to work (the pressure of the combustion air doesn’t point the pressure recorded
out and locks out the burner).
• verify that putting into short the detection electrode or taking away the connection to the electrode the burner goes
to shutdown (in case the flame control be with UV cell, darken it).
Make at least 2 tests with positive results and check that the burner starts respecting the sequences of ignition
beginning with the purge period.
When the ignition is made, go on with the complete regulation of the burner.
In order to obtain an optimum adjusting of the burner it is necessary carry out the analysis of the combustion exhaust
gases at the exit of the combustion chamber.
At this time we can start with the calibration of the burner for its maximum capacity going on with the opening of the fuel
modulation valve determining its run by the cam placed on the servo control.
10.5.1) SQN31 ... Servomotor adjusting
1 - To adjust the gas maximum capacity (high flame) act on the gas interception solenoid valve or changing the gas
supply pressure by means of the stabilizer. The throttle valve must be in completely opened position.
2 - The position of the gas throttle valve and of the air lock in low flame are calibrated when the first testing took
place.
Function and calibration of the cams (Pic. 14a, 14b, 14c)
Cam I ~ 160° Run end for the position of maximum opening of the modulant valve
Cam II ~ 0° Run end for the position of minimum opening of the modulant valve
Cam III ~ 10° Minimum position of the modulant valve for the ignition of the burner at a power upper
to the minimum working.
Cam IV ~ 20° Maximum position of the modulant valve for the ignition of the burner at a power upper
to the minimum working.
Cam V Not in use.
Important:
“Cam IV“ calibration must be always higher then the Cam III calibration about
3° ÷ 5°.
EN01_BPRMBMD_RBL_0815
Pic. 14a

10
To calibrate the servo control go on in the following way:
•Take away tension to the burner.
•Insert the key which is on a side of the servo control in a accessible notch
of the cam to adjust and make it turn until the desired position.
•Put another time into tension the burner and verify that the excursion of the
servo control does not stop at mechanical limits.
•Give tension to the burner and control the right calibration of the servo con-
trol in such a way that it does not stop at mechanical run ends
Once made this regulation, calibrate in sequence:
10.5.2) Combustion air pressure switch
The air pressure switch is connected in differential way so it is under strain
from the depression and also from the pressure created by the combustion
air electrical fan.
It is important that the combustion air pressure switch is calibrated in a right
way, for a good calibration it is necessary detect the differential pressure (see
Pic. 15) between P1 (pressure intake upstream diaphragm) and P2 (pressure
intake downstream diaphragm) in the following conditions:
DP1: Burner stopped and process air fan working.
DP2: Burner fan working (air adjusting lock completely opened)
and process air fan working.
The initial calibration of the pressure switch should be to an intermediate
value between DP1 and DP2, at this time the burner should be alight, once
the ignition is made the DP has a loss due to the flame presence.
If the DP detected (DP3) is inferior to the DP calibrated on the pressure
switch, the burner goes to lock (opening of the contact PAC) so is neces-
sary reduce the calibration of the pressure switch to an intermediate value
between DP1 and DP3, reset the burner and restart it.
The thermal variations into the combustion chamber does not influence the
DP, but in any way it is advisable check once reached the maximum exer-
cise temperature, that the DP calibrated on the pressure switch be a little bit
superior than the real one.
It is possible calibrate the capacity of combustion air acting on the adjusting
lock, taking into consideration that the DP should be superior of at least 1
mbar to the value DP1.
10.5.3) Gas MAX pressure switch
This device has the function of stop the burner in case of wrong adjusting or accidental increases of pressure of fuel,
which could cause a capacity, increase with the consequence of making the burner work outside the maximum field.
Do the adjusting of the maximum pressure switch after all the other regulations of the burner with the gas maximum
pressure switch adjusted at the end of the scale. With the burner working to the max. power, decrease the pressure of
adjusting turning slowly in clockwise the adjusting hand grip until the burner lock. Turn in clockwise the hand grip of 2
mbar and repeat the start of the burner. If it stops another time, turn once again clockwise of 1 mbar.
Turn in clockwise the hand grip of 2 mbar and repeat the start of the burner.
If it stops another time, turn once again clockwise of 1 mbar.
The final calibration must result about the 10% more than the maximum working pressure.
10.5.4) Gas MIN pressure switch
Do the adjusting of the minimum gas pressure switch after all the other regulations of the burner with the pressure
switch adjusted at the beginning of the scale. Make the burner work to its maximum power.
Close slowly the manual valve until the pressure, measured on the pressure switch intake, decrease of 5 ÷ 6 mbar than
the value of working. Turn slowly the hand grip of the pressure until the intervention of the same pressure switch and
to the consequent stop of the burner. Open completely the manual valve.
EN01_BPRMBMD_RBL_0815
MANUAL
POSITION
BUTTON
Pic. 14b
Pic. 14c
Pic. 15
Pic. 16

11
11) MAINTENANCE
To guarantee a good working without problems of the burner, do the following operation each 6 months.
1) Clean the burner working surface (blast-tube and combustion head) with a resistant material brush);
2) Clean the fan rotor (a dirty rotor can be the cause of an irregular flame);
3) Check all the safety circuits;
4) Check the pressures and compare them to the value recorded at the beginning;
5) Check all devices of interception and the combustible control;
Often problems to the burner working can be caused by a deterioration of the UV cell or the flame detection probe,
this is detectable by a current fall in exit.
The cause of a current falls can be caused by a dirty fan comburent air rotor.
The same e󰀨ect, furthermore can be checked in the case that the air pressure of the process, increase for some varia-
tion state in the other system parts.
12) CONFORMITY EVALUATION
The burner design and construction account for the relevant aspects of the following European Directives and
Regulations.
2006/42/CE Concerning the application of Member State legislation on machinery
UNI EN 746-2:2011 Industrial thermoprocessing equipment. Safety requirements for combustion and fuel
handling systems.
UNI EN ISO 12100:2010 Safety of machinery - General principles for design - Risk assessment and risk reduc-
tion.
CEI EN 60204-1:2006 Safety of machinery. Electrical equipment.
Applying each possible section in obtaining the conformity and safety of the burner in all its conditions.
EN01_BPRMBMD_RBL_0815

12
FAULTS
1) Combustion air fan does not start.
2) Combustion air fan, but burner
goes to "lockout".
3) No spark.
Burner goes to "lockout".
4) Burner does not light.
5) Burner light but goes to "lockout".
(**) If fitted
13) TROUBLESHOOTING
POSSIBLE CAUSES
a) No air pressure in duct
(positive or negative).
b) Combustion air pressure switch
set too low.
c) Process air pressure switch
set too high.
d) The gas MIN pressure switch
is set too high and the gas
pressure its too low.
a) Combustion air pressure switch
set too high.
b) Fan blade is dirty.
a) The ignition electrode high tension
lead is not properly connected.
b) The ignition electrode
is not properly adjust.
c) Ignition transformer failed.
a) No gas.
b) Gas flow rate too high.
c) The MIN. gas pressure value
is too low.
d) The normally opened valve
didn’t close or the micro is at
stroke end.
a) The detection probe is not placed
in the right way or it is at mass.
b) U.V.** cell not looking at flame.
c) U.V.** cell failed.
REMEDY
a) Switch on main duct fan.
b) Reset pressure switch.
c) Reset pressure switch.
d) Adjust gas pressure or reset
gas MIN pressure switch.
a) Reset pressure switch.
b) Clean fan blade dirty.
a) Tighten lead ends.
b) Regulate the distance between the
conductor and the grounded
discharged of the ignition electrode.
Should be 3mm.
c) Substitute the ignition transformer.
a) Find cause and rectify
b) Adjusting the MIN. position of
modulating valve.
c) Adjusting the MIN. position of
modulating valve.
d) Calibrate the micro or substitute
the valve.
a) Adjusting the detection probe
position.
Make good earth connection
b) Adjusting the U.V. cell position.
c) Check output signal or substitute
the U.V. cell.
EN01_BPRMBMD_RBL_0815

13
POSSIBLE CAUSES
d) Detection probe output signal
too low or bad earth connection.
e) Verify if phase and neutral are
inverted.
a) The MIN. gas pressure switch
is set too high.
b) The MAX. gas pressure switch
is set too low.
c) The flame is not properly detected.
(See at position No. 6)
a) MIN. and MAX. gas pressure
switch are failed.
b) Process air pressure switch
is failed.
c) Loss of process air pressure.
d) Safety devices ignition
aren't activated.
a) Main gas valves are not completely
shutting.
a) Gas pressure failing.
b) Burner's blast-tube and combustion
head are dirty.
c) Combustion air filter is dirty or
obstructed.
FAULTS
5) Burner light but goes to "lockout".
6) The burner switch o when the
range increase.
7) Flame goes out on reaching
high fire.
8) Flame goes out.
Burner no "lockout".
9) Flame goes out.
Burner goes to "lockout".
10) Heat output not maintained.
REMEDY
d) Check the detection probe output
signal.
Make good earth connection
e) Connect them in the right way.
a) Reset the pressure switch.
b) Reset the pressure switch.
c) Adjusting the detection probe
position.
(See at position No. 6)
a) Replace the pressure switch.
b) Replace the pressure switch.
c) Check process air electrical fan
and the duct structure.
d) Check all devices are activated
a) Check the main gas valves
immediatly.
a) Check the main gas valve.
b) Clean by resistant material brush.
c) Change the filtering cartridge
or clean it.
EN01_BPRMBMD_RBL_0815

14
Burner:
Fuel used for the test.................................................................................
Gas train inlet pressure.............................................................................:
Working pressure (measured on the max gas pressure switch):
- High Fire..............................................................................................:
- Low Fire...............................................................................................:
Maximum gas pressure switch setting......................................................:
Minimum gas pressure switch setting.......................................................:
Process air/Combustion air pressure difference.......................................:
Differential pressure switch setting (process air/combustion air) ...................:
Combustion air pressure switch setting....................................................:
Process air pressure.................................................................................:
Process air pressure switch setting ..........................................................:
Burner’s process air temperature .............................................................:
Burner controls:
Manufacturer.............................................................................................:
Model ........................................................................................................:
Detection Probe:
Manufacturer.............................................................................................:
Model ........................................................................................................:
Tightness control:
Manufacturer.............................................................................................:
Model ........................................................................................................:
Reference
Values
BP R 600 - BP R 800
15) WORKING VALUES
The values described above refers to burner adjusting made in manufacturer laboratory.
They are a reference and refers to laboratory environmental conditions during testing.
The following table must be completed at burner starting and bring up-to-date after every use values change or after
maintenance.
• Burner Model ........................:
• Code...............................:
• Electrical Scheme ....................:
• Fuel ................................:
• Output MIN. installed...................:
• Output MAX. installed ..................:
• Power consumption ....................:
• Electric supply ........................:
• Frequency ...........................:
• Auxiliary.............................:
• Operation............................:
• Environment temperatureMAX. ..........:
• Weight ..............................:
Working
Values
(Customer care)
14) TECHNICAL CHARACTERISTICS
CH4CH4
200 mbar 150 mbar
10,0 mbar 8,7 mbar
0,1 mbar 0,2 mbar
15 mbar 15 mbar
10 mbar 10 mbar
/mbar /mbar
/mbar /mbar
3,0 mbar 4,0 mbar
/ mbar / mbar
mbar mbar
... °C ... °C
Siemens
LME 21.330C2
2036013 - 2036013
35 ÷ 40 μA
/
/
BP R 600 MB MD
2036630
010-418
CH4 (8250 kcal/Nm3)
28 kW
700 kW
1,25 kW
400 V
50 Hz
230 V
Modulating
BP R 800 MB MD
1645500
010-418
CH4 (8250 kcal/Nm3)
35 kW
930 kW
1,25 kW
400 V
50 Hz
230 V
Modulating
EN01_BPRMBMD_RBL_0815