elco VG2.120 M E /TC User manual

09/2018 - Art. Nr. 4200 1038 2701A
en
......................................... 4200 1093
0901
......................................... 4201 1004 8800
Original operating instructions
For authorised specialist engineers
Gas burners
VG2.120 M E /TC
VG2.160 M E /TC
VG2.205 M E /TC
de, fr................................. 4200 1038 2501
it, nl.................................. 4200 1038 2601
en..................................... 4200 1038 2701
de, fr, it, nl, en................. 4200 1038 2401

09/2018 - Art. Nr. 4200 1038 2701A2
Overview
Contents
Page
Overview Contents .....................................................................................2
Important information .................................................................2
Burner description ......................................................................3
Operation Operation, safety function ..........................................................4
Control and safety unit BT 3xx ...................................................5
Terminal allocation chart ........................................................ 6-7
Control and safety unit BT 3xx gas operation ............................8
BT 3xx menu overview ...............................................................9
MBC-SE gas train.....................................................................10
Assembly Burner assembly ......................................................................11
Gas train...................................................................................12
Checking the combustion components .............................. 13-14
Electrical connection ................................................................15
Testing before commissioning..................................................15
Ionisation current measurement ...............................................15
Commissioning Setting data ..............................................................................16
Air regulation, MBC SE gas train setting ..................................17
Pressure regulator setting ........................................................17
Confirming the "Manual Handshake" data................................18
Menu 1: setting the servomotors ....................................... 19-24
Pre-setting without flame.................................................... 19-20
Setting with flame ............................................................... 21-24
Operating mode........................................................................24
Setting the gas pressure switch/air pressure switch ................25
Displaying the setting data from the manual control display ....26
Recording commissioning data ................................................27
Maintenance Servicing............................................................................. 28-29
Menu 3: Fault memory, Entering a telephone
number for the maintenance company and the
maintenance contract number............................................ 30-31
Menu 4: operating statistics......................................................32
Setting the brightness and contrast of the display....................33
Important information
VG2.120/160/205 M E /TC burners are
designed for the low-pollutant combustion of
natural gas and propane gas. The design and
function of the burners meet standard EN
676. They are suitable for use with all heat
generators complying with standard EN 303
or for use by hot air generators complying
with standard DIN 4794 or DIN 30697 within
their respective performance range. Any
other type of application requires the
approval of ELCO.
Installation, start-up and maintenance must
only be carried out by authorised specialists
and all applicable guidelines and regulations
must be complied with.
Burner description
VG2.120/160/205 M E /TC burners are
modulating, fully automatic, monoblock type
burners with electronic cam. The special
design of the combustion head enables
combustion with low levels of nitrogen oxide
and increased output. Class 3 type-approval
in accordance with EN676 certifies that the
lowest emission values have been achieved
and means that the national environmental
regulations have been met
AT: KFA 1995, FAV 1997
CH: LRV 2005
DE: 1.BImSChV
Emissions values may differ, depending on
furnace dimensions, furnace load and the
firing system (three-pass boilers, boilers with
reverse firing). For specifying warranty
values, the conditions for the measuring
equipment, tolerances and humidity must be
observed.
Packaging
The burner is supplied packaged in two
boxes on a pallet:
- Burner housing with operating instructions,
circuit diagram and spare parts list.
- Burner head with flange seal and securing
screws.
- Compact gas train with integrated filter
The following standards should be observed
in order to ensure safe, environmentally
sound and energy-efficient operation:
EN 226
Connection of fuel oil and gas burners with
blast air to a heat generator
EN 60335-1, -2-102
Specification for safety of household and
similar electrical appliances, particular
requirements for gas burning appliances
Gas lines
When routing the gas lines and fittings, the
general installation instructions and
guidelines, as well as the following national
regulations, must be observed:
CH: - G1 instruction text from SSIGE
- EKAS form no. 1942,
liquefied gas directive, part 2
- Cantonal authority guidelines (e.g.
directives for the pilot valve)
DE: - DVGW-TVR/TRGI
Installation location
The burner must not be used in rooms with
aggressive vapours (e.g. hair spray,
tetrachloroethylene, carbon tetrachloride),
high levels of dust or high air humidity (e.g.
laundry rooms).
If no connection to an air exhaust system is
provided for the air supply, there must be a
supply air inlet measuring:
DE: up to 50 kW: 150 cm2
for each additional kW: + 2.0 cm2
CH: QF [kW] x 6= ...cm2; but 200 cm2
minimum.
Variations may arise as a result of local
regulations.
Packaging and handling
• Move the burner still in its packaging using
a trolley or forklift, taking care not to drop it
and elevating it no more than 20cm from
ground level. After having removed the
packaging, check that the contents are in
good condition and correspond with what
was ordered. If in doubt, contact the manu-
facturer. If the weight and dimensions do
not allow for manual lifting, ask another
operator for help or use a forklift, harness
the burner using belts if no eyebolts are
available.
We accept no responsibility for damage
arising from:
- inappropriate use
- incorrect installation and/or repair on the
part of the buyer or any third party,
including the fitting of non-original parts.
Final delivery and instructions for use
The firing system fitter must supply the
operator of the system with operating and
maintenance instructions on or before final
delivery. These instructions should be
displayed in a prominent location at the point
of installation of the heat generator,. They
should include the address and telephone
number of the nearest customer service
centre.
Notes for the operator
The system should be inspected by a
specialist at least once a year. Depending on
the type of installation, shorter maintenance
intervals may be necessary! It is advisable to
take out a maintenance contract to guarantee
regular servicing.

09/2018 - Art. Nr. 4200 1038 2701A 3
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Overview
Burner description
A1 Control and safety unit
A4 Display
F6 Air pressure switch
M1 Blower motor
T1 Igniter
Y10 Air flap servomotor
3 Adjusting knob for dimension Y
4 Propane diffuser
5 Housing
6 Plate hanging device
(Maintenance)
8 Burner tube
10 7-pin connector
10.1 4 pin connector
16 Gas connecting flange
18 Cover
19 Release knob
20 Hood securing screw
113 Air intake box

09/2018 - Art. Nr. 4200 1038 2701A4
Description of functions
When first powering up, after a power
cut or a lockout, after the gas supply has
been cut or after a shutdown for 24
hours, a gas valve sealing test is
performed before the burner is started,
with the fan motor in operation. A pre-
ventilation time of 24 seconds begins
after the sealing test.
During the pre-ventilation time
- the air pressure is monitored
- a check is made for the presence of
any abnormal flame signals.
At the end of the pre-ventilation time
- the ignition is switched on
- the main and safety solenoid valves
are opened
- burner start-up
Monitoring
The flame is monitored by an ionisation
probe. The probe is fitted with insulation
to the gas head and is routed through
the turbulator into the flame zone. The
probe must not have any electrical
contact with earthed parts. The burner
switches to malfunction if a short circuit
occurs between the probe and the
burner earth. During burner operation,
an ionised zone is produced in the gas
flame through which a rectified current
flows from the probe to the burner tip.
The ionisation current must be at least
8 µA.
Safety functions
- If no flame is produced when the
burner is started (gas release), the
burner is switched off at the end of the
safety time which lasts no more than
3 seconds and the gas valve closes.
- If the flame is lost during operation,
the gas supply is cut within a second.
A new start-up sequence is activated.
If the burner starts, the operating cycle
starts running. Otherwise a lockout
occurs.
- If there is an air failure during pre-
ventilation or operation, a lockout
occurs.
- If there is a gas failure, the burner
either stops or will not start. As soon
as sufficient gas pressure is available
again, the burner restarts.
During the regulator shutdown
- The control thermostat interrupts the
heating request
- The gas valves close
- The flame goes out
- The blower motor stops
- The burner is ready for operation
F4 Gas pressure switch
F6 Air pressure switch
Y12 Safety solenoid valve
Y13 Main solenoid valve
1 Thermal safety valve (to be
installed by the fitter)
103.1 Gas throttle
104 Gas pressure regulator
106 Screen
108 Gas cut-out valve (to be
installed by the fitter)
119pBr Gas pressure measuring point
at the valve outlet
119.1 Gas pressure measuring point
upstream of the valves
119.2 Air pressure measuring point
Operation
Operation
Safety function
CH note
In accordance with SSIGE instructions,
it is compulsory to install a gas safety
valve (mark 1) in the pipe.
DE Note
In compliance with the reference layout
applicable to boiler rooms, sites with gas
furnaces must be fitted with a thermal
gas shut-off valve (1).
Compact train

09/2018 - Art. Nr. 4200 1038 2701A 5
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Operation
Control and safety unit BT 3xx
Pressing button
for ...
… causes ….
... 1 second ... the control and safety
unit to unlock.
... 2 seconds ... the control and safety
unit to lock
- Moves the cursor upwards
- Moves the cursor downwards
- Increases the marked value
- Moves the cursor to the right
- Reduces the marked value
- Moves the cursor to the left
Modifies/confirms the value shown
- Unlocks the control and safety unit
Red LED (flashes if a fault is
present)
Manual locking and unlocking
Using the reset button , the control
and safety unit can be locked manually
(interlocked) or unlocked, provided the
unit is connected to the mains power
supply. This function must not be
confused with automatic locking and
fault acknowledgement in case of an
error.
Before installing or removing the unit or
any operation in the connection area,
switch off the supply to the device, check
for the absence of voltage and prevent
any reactivation. Otherwise there is risk
of electric shock. The control and safety
unit must not be
opened or repaired.
The control and safety unit BT 3xx
controls and monitors the forced draught
gas burner. The microprocessor-
controlled program sequence ensures
the maximum consistency of the cycle
times involved, regardless of
fluctuations in the mains voltage or
ambient temperature. The control and
safety unit is designed to detect power
failures. Depending on the parameter
assignment, the unit either switches to
malfunction mode or goes into the
standby position if the power supply falls
below the mains voltage. In the standby
position, there is an automatic restart as
soon as the set threshold value is
exceeded by 105%.

09/2018 - Art. Nr. 4200 1038 2701A6
Pin Terminal Description Connector Pin Terminal Description Connector
1 1 Phase gas solenoid valve 1
X01
+
X02
1 29 Grounding of the burner
2 2 Earth 1 30 Neutral conductor of the fuel-oil
pump X26
3 3 Neutral conductor 2 31 Earth
1 4 Phase gas solenoid valve 2 3 32 Phase
2 5 Neutral conductor 1 33 Neutral conductor X25
3 6 Earth 2 34 Earth
1 7 Phase fuel valve 3 (optional) X03 3 35 Phase burner motor
2 8 Earth 1 36 Neutral conductor X24
3 9 Neutral conductor 2 37 Earth
1 10 Phase ignition transformer X04 3 38 Alarm output
2 11 Earth 1 39 Neutral conductor X23
3 12 Neutral conductor 2 40 Earth
1 13 Phase gas pressure switch min. X05 3 41 L1 power supply
2 14 Earth 1 42 Neutral conductor X22
3 15 Phase 2 43 Earth
1 16 Phase burner safety circuit X06 3 44 L1 power supply output
2 17 Earth 1 45 UV flame monitor (-) X21
3 18 Phase 2 46 UV flame monitor (+)
1 19 Phase boiler safety circuit X07 1 47 Ionisation probe
X20
2 20 Phase 2 48 Phase
1 21 Phase air pressure switch X08 3 49 Flame monitor (+)
2 22 Phase 4 50 Flame monitor (-)
1 23 Load (-) X09
2 24 Load (+)
3 25 Phase
1 26 Malfunction reset X10
2 27 Burner ON
3 28 Phase
Operation
Terminal allocation chart
Air pressure
switch
Ignition
device
Terminal
Connector
Remote
unlocking
Solenoid valves
(1+2)
Heating
request
Min. gas
pressure
switch
Burner
safety
circuit Boiler
safety
circuit
Solenoid
valve 3
Flame check
Fault
display
Burner motor
Terminal
L1 power supply
Grounding of
the burner UV detector
additional
Ionisation
Flame
monitor
Connector
1 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 1 2 3 4
1 2 3 1 2 3 1 2 3
Pin
Pin 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 1 2

09/2018 - Art. Nr. 4200 1038 2701A 7
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Operation
Terminal allocation chart
* Terminal allocation depends on the design of the burner
Pin Terminal Description Connector
11
Display X30
22
33
44
55
66
17
PC interface X31
28
39
410
511
612
113
Servomotor gas X32
214
315
416
517
618
119
Servomotor air* X33
220
321
422
523
624
125
Servomotor fuel oil* X34
226
327
428
529
630
Terminal
Display PC interface Gas
servomotor
Air
servomotor*
Fuel oil
servomotor*
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
Pin
Connector

09/2018 - Art. Nr. 4200 1038 2701A8
Operation
Control and safety unit BT 3xx gas operation
Legend to the sequence diagram
t1 Awaiting boiler safety circuit
Air pressure switch min. request
t2 Time for pressure build-up in the gas control line (only
when sealing test mode is activated, program sequence
for density test can vary, see sequence diagram for
density test)
t3 Servomotor running time
t4 Closing of gas flap
t5 Ventilation time
t6 Transformer activation time
t9 Safety time
t10 Operating phase
t11 Regulation
t12 Time for pressure release in the gas control line
t13 Postventilation time
t14 Servomotors under base load
t15 Post combustion time
t16 Flame extinction test
t17 Sealing test gas valve 2
Sealing test sequence diagram - no gas pressure at start of sealing test. Sealing test sequence diagram - gas pressure present at start of sealing
test.
Legend to the sequence diagrams
t1 Ventilation time, always 2 seconds
t2 Delay time, always 2 seconds
t3 Sealing test time, configurable
t4 Filling time, configurable
The diagrams on this page have been taken from the operating instructions of the BurnerTronic BT300 BT320 BT340 from Lamtec.
Print no. DLT1200-11-aDE-002 Copyright© 2011 LAMTEC
Boiler safety circuit
Gas safety circuit
Burner on
Minimum gas pressure switch
Air pressure switch
Flame signal
Air flap
Gas flap
Transformer
Gas valve 1
Gas valve 2
Air motor
Fault

09/2018 - Art. Nr. 4200 1038 2701A 9
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Operation
BT 3xx menu overview
• Menu 1: Setting the
servomotors
• Menu 2: Display of the
setting points of the
servomotors in the
display unit
• Menu 3: Displaying
faults
• Menu 4: Statistical data
• Menu 5: Setting/
modification of
standard configurations
In addition to the function of control and
safety unit, the control and safety unit BT
3xx also modulates the burner output by
controlling the air flap, gas flap, fuel oil
quantity regulation and frequency
converter (optional) in one electronic
circuit.
The electronic circuit controls the
opening of the gas flap and fuel oil flow
regulation proportional to the air flap
along a curve based on 10 setting points
During start up, the setting points are
defined based on the measurement
values of the combustion gas analysis.
This guarantees optimal combustion
over the burner's entire output
modulation range.
A separate burner ignition load can be
defined with the "Ignition position"
setting point .
The limit values of the control range are
defined by the min. output " " and
max. output " " setting points. In
addition, other optional functions, such
as sealing tests, reventilation or waiting
times can be activated.
The combustion control unit is operated
via a display and operating unit. The
parameters for the control and safety
unit are set using the display and 5 keys.
Operating values are shown in real time
on the display.
Pressing the keys gives access to 9
menus:
• Menu 6: Setting/
modification of
configurations for
industrial applications
• Menu 7: Manual mode
• Menu 8: Setting mode
- Menu 8 currently not
available
• Menu 9: Setting the
brightness and contrast of
the display
In these menus, it is
possible to adjust the
standard configurations of
the control unit. These are
pre-set in the factory.
The nearest customer
service department must be
contacted before any on-
site modifications are made.

09/2018 - Art. Nr. 4200 1038 2701A10
The gas train consists of:
- a gas connection flange 1 with O-ring
- a gas throttle 2, controlled by a
servomotor
- a gas connection pipe 3
- an MBC-SE gas valve train with gas
filter 4 (mini filter)
MBC SE gas valve
1 Electrical connection of solenoid
valves (DIN 43650)
2 Electrical connection of gas
pressure switch (DIN 43650)
3 Gas pressure switch
4 Gas inlet flange
5 Mini filter (under cover)
6 Gas pressure adjustment
screw pBr
8 Gas pressure measurement
tap G1/8 (inter-valve pressure)
9 Gas pressure measurement
tap G1/8 (outlet pressure pBr)
10 Gas pressure measurement
tap G1/8 (inlet pressure)
Installation position:
vertical with the coils facing upwards.
Where the lines are vertical, the coils
must be horizontal.
Description, technical data
The MBC-SE gas compact valve train is
a compact unit with 2 Class A solenoid
valves, a Class A servo pressure
regulator, a mini filter and a pressure
switch.
- Pressure switch GW A5: adjustment
range 5.....50 mbar
- Solenoid valve V1/V2 (fast-opening/
fast-closing)
- Adjustable servo pressure regulator
- Max. operating pressure 500 mbar
- Inlet pressure range
15-500 mbar
- Voltage/frequency:
230 V/50-60 Hz
Pressure regulator setting
The outlet pressure is set using
adjustment screw 6.
Operation
MBC-SE gas train

09/2018 - Art. Nr. 4200 1038 2701A 11
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Burner tube installation depth and
brickwork surround
Unless otherwise specified by the boiler
manufacturer, heat generators without a
cooled front wall require brickwork or
insulation 5 as shown in the illustration
opposite. The brickwork must not
protrude beyond the leading edge of the
flame tube, and should have a maximum
conical angle of 60°. Space 6 must be
filled with an elastic, non-flammable
insulation material.
Exhaust gas evacuation system
To avoid unpleasant noise emissions,
right-angled connectors should not be
used on the flue gas side of the boiler.
For assembly in the position with
the volute facing upwards, unclip
the display from its support, turn it
over 180° and refit it.

Burner installation
Burner flange 3 is equipped with
elongated slots and can be used with a
hole Ø of 150 - 184 mm. These
dimensions comply with EN 226.
The insertion depth of the combustion
components can be adjusted to the
geometry of the combustion chamber by
sliding pipe bracket 2 on the burner's
flame tube. The installed depth remains
the same during fitting and removal.
The burner is secured to the connecting
flange, and therefore to the boiler, via
pipe bracket 2. This completely seals off
the combustion chamber.
Installation:
• Secure connecting flange 3 to the
boiler using screws 4
• Fit pipe bracket 2 to the burner pipe
and secure using screw 1. Tighten
screw 1 to a maximum torque of 6 Nm.
• Turn the burner slightly, guide it into
the flange and secure using screw 5.
Removal:
• Loosen screw 5
• Turn the burner out of the bayonet
socket and pull it out of the flange.
On boilers with reverse firing, the
minimum flame tube insertion depth A
should be observed as per the boiler
manufacturer's instructions.
Inspection glass cooling
The burner body can be equipped with
an R1/8" connection to support a line for
cooling the boiler's inspection glass.
• To do this, drill through cast iron
projection 6 and cut a 1/8" thread.
• Use accessories article no. 12 056
459 for the threaded union and
connection hose.
Installation
Burner installation

09/2018 - Art. Nr. 4200 1038 2701A12
Installation
Gas train
Gas train installation
• Check the correct position of the O-
ring J1 in the connecting flange.
• Secure the gas train on the burner so
that the gas train coils are in the upper
vertical position.
• Pay attention to the direction of
circulation.
Upon the installer responsibility
it is mandatory to install
additional support(s) in order to
not overload the burner body
with the dead load of full gas
train, accessories, piping and
so on. The burner body can
stand just the gas valve and the
piping between the gas valve
and the body.

On VG2.160/205 M E /TC burners,
insert the diaphragm 2 delivered
with the gas train mounting parts
into the flange of the burner body.

• Route the connection cables C for the
gas train through cable gland and
connect it to the gas train.

09/2018 - Art. Nr. 4200 1038 2701A 13
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Checking the combustion
components
• Remove the three screws W from the
cover.
• Remove the cover.
• Loosen lock nut E on the gas pipe
bracket
• Loosen the retaining bolt.
• Remove combustion components.
Installation
Checking the combustion components

09/2018 - Art. Nr. 4200 1038 2701A14
Installation
Checking the combustion components
VG 2.120 M E /TC
VG 2.120
VG 2.160 M E /TC
VG 2.205 M E /TC
VG 2.120 M E /TC
VG 2.160 M E /TC
VG 2.205 M E /TC
Checking the combustion
components
• Check the setting of the ionisation
probe and the ignition electrode in
accordance with the illustrations.
Setting to propane gas operation
VG2.120 M E /TC burner
• Remove the shutter 3 and the
turbulator 4.
• Fit the adaptor 5 (supplied with the
housing).
• Fit the turbulator 4 without the
shutter 3.
Setting to propane gas operation
VG2.160 M E /TC burner
• Remove the shutter 3 and the
turbulator 4.
• Fit the adaptor 5 (supplied with the
housing).
• Fit the turbulator 4 and the shutter 3.
Setting to propane gas operation
VG2.205 M E /TC burner
• Remove ionisation probe and ignition
electrode.
• Remove baffle plate 4.
• Remove natural gas diffuser and
nozzle.
• Fit LPG diffuser 5 (supplied with the
housing).
• Refit baffle plate 4 and nozzle 3.

09/2018 - Art. Nr. 4200 1038 2701A 15
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Checks before commissioning
The following must be checked before
initial commissioning:
• That the burner is assembled in
accordance with the instructions given
here.
• That the burner is pre-set in
accordance with the values in the
adjustment table.
• Setting the combustion components.
• The heat generator must be ready for
operation, and the operating
regulations for the heat generator
must be observed.
• All electrical connections must be
correct.
• The heat generator and heating
system must be filled with water and
the circulating pumps must be in
operation.
• The temperature regulator, pressure
regulator, low water detectors and any
other safety or limiting devices that
might be fitted must be connected and
operational.
• The exhaust gas duct must be
unobstructed and the secondary air
system, if available, must be
operational.
• An adequate supply of fresh air must
be guaranteed.
• The heating request must be
available.
• Sufficient gas pressure must be
available.
• The fuel supply lines must be
assembled correctly, checked for
leaks and bled.
• A standard-compliant measuring point
must be available, the exhaust gas
duct up to the measuring point must
be free of leaks to prevent anomalies
in the measurement results.
General regulations applying to the
gas connection
• The gas train must only be connected
to the gas mains by a recognised
specialist.
• The cross-section of the gas line
should be of a size designed to
guarantee that the gas flow pressure
does not drop below the specified
level.
• A manual shut-off valve (not supplied)
must be fitted upstream of the gas
train.
• In Germany, a thermally triggered
shut-off valve (to be installed by the
customer side) must be fitted as
specified by the draft combustion
ordinance.
It is the responsibility of the fitter or his
representative to obtain approval for the
system at the same time as the burner is
commissioned. Only the fitter or his
representative can guarantee that the
system meets applicable standards and
regulations. The fitter should be in
possession of the corresponding official
permit, and should carry out the
corresponding sealing tests and purge
the system of air.
Electrical installation and connection
work must only be carried out by a
suitably qualified electrician. All
applicable regulations and directives
must be observed.
N.B. The applicable guidelines
and directives must be
observed, as well as the
electrical circuit diagram
supplied with the burner.
Electrical connection
• Check to ensure that the power supply
is as specified (230V, 50 Hz single
phase with neutral and earth).
Boiler fuse: 6.3A
Electrical connection
It must be possible to disconnect the
burner from the mains using an
omnipolar shutdown device complying
with the standards in force. The burner
and heat generator (boiler) are
connected by a 7-pin connector 1 and a
4-pin connector 2 (not supplied). The
diameter of the cables connected to
these connectors must be between 8.3
and 11 mm.
Connecting the gas train
Connect the gas train to the plugs on the
burner (black to black, grey to grey).
Ionisation current measurement
To measure the ionisation current,
disconnect connector B10 and connect
a multimeter with a measuring range of
0-100 µA.
The 2nd stage ionisation current must be
at least 7 µA. It is also possible to read
the ionisation current on the display.
Installation
Electrical connection
Checks before commissioning
Ionisation current measurement

09/2018 - Art. Nr. 4200 1038 2701A16
Commissioning
Adjustment data
Setting the gas pressure switch
• Remove the transparent cover.
• Provisionally set to 15 mbar.
Setting the air pressure switch
• Remove the transparent cover.
• Provisionally set to 1 mbar.
The adjustment values above are guide values and facilitate commissioning. The final settings are essential in ensuring that the
burner functions as well as possible.
Only for the VG2.205 M E /TC burner:
• When operating at low gas pressure, it
is necessary to remove the diaphragm
4 from the gas inlet.
P3(°)P6(°) P3(°)P6(°)
40 80 10 0,8 0 0 10 20 30 5 5 10 20 28 13,0
50 100 20 0,9 10 10 20 30 45 15 15 25 38 55 10,0
60 120 30 1,3 15 15 30 40 80 15 15 30 35 65 14,0
40 80 10 0,8 0 0 10 20 30 5 5 10 20 28 17,5
50 100 20 0,9 10 10 20 30 45 15 15 25 38 55 15,0
60 120 30 1,3 15 15 30 40 80 15 15 30 35 65 18,0
40 80 10 0,8 0 0 10 20 30 5 5 10 20 28 7,5
50 100 20 0,9 10 10 20 30 45 15 15 25 38 55 7,5
60 120 30 1,3 15 15 30 40 80 15 15 30 35 65 8,0
40 130 10 1,4 0 0 20 40 60 12 12 26 43 57 10,0
50 150 15 1,5 5 5 30 55 75 15 15 35 48 70 10,0
60 160 25 1,7 13 13 30 60 90 17 17 30 44 55 13,0
40 130 10 1,4 0 0 20 40 60 12 12 26 43 57 12,5
50 150 15 1,5 5 5 30 55 75 15 15 35 48 70 13,0
60 160 25 1,7 13 13 30 60 90 17 17 30 44 55 16,0
40 130 10 1,4 0 0 20 40 60 3 3 20 36 50 6,5
50 150 15 1,5 5 5 30 55 75 5 5 27 40 65 7,5
60 160 25 1,7 13 13 30 60 90 12 12 25 36 65 8,0
45 140 10 1,4 0 0 20 40 60 13 13 26 50 65 10,0
50 150 20 1,5 6 6 25 45 65 14 14 32 48 65 10,0
60 185 35 1,7 10 10 35 65 90 15 15 35 45 75 13,0
45 140 10 1,4 0 0 20 40 60 13 13 26 50 65 12,5
50 150 20 1,5 6 6 25 45 65 14 14 32 48 65 13,0
60 185 35 1,7 10 10 35 65 90 15 15 35 45 75 16,5
45 140 10 1,4 0 0 20 40 60 5 5 20 40 65 0,6
50 150 20 1,5 6 6 25 45 65 8 8 27 40 60 0,6
60 185 35 1,7 10 10 35 65 90 10 10 30 42 75 8,0
VG2.205
M E /TC
G20
G25
G31
VG2.120
M E /TC
G20
G25
G31
VG2.160
M E /TC
G20
G25
G31
Gas throttle position Pressure
regulator
PBr
setting
mbar
Full
load
Ignition
load
(°)
Part-
load
P0 (°)
Full
load
P9 (°)
Ignition
load
(°)
Part-
load
P0 (°)
Full
load
P9 (°)
Furnace
pressure
mbar
Air flap position
Burner Part-
load
Dimension Y
mm
Type of
gas
Burner output
kW

09/2018 - Art. Nr. 4200 1038 2701A 17
en
Air regulation
Combustion air is regulated at two
points:
• on the pressure side, using the gap
between the turbulator and the burner
tube.
• on the vacuum side, by the air flap
driven by servomotor Y10.
The regulation of air in the burner head
affects not only the air flow but also the
mixing zone and the air pressure in the
burner tube. Turning screw A
- to the right for more air
- to the left for less air
• Adjust dimension Y in accordance
with the settings table.
Air regulation by air flap
Air is regulated on the vacuum side by
an air flap. This is driven by servomotor
Y10.
Commissioning
Air regulation
MBC-SE gas train setting
Pressure regulator setting
MBC-SE gas train setting
Pressure regulator setting
The gas pressure regulator is set at 10
mbar in the factory. Check the gas
pressure after the first time the burner is
started (measuring point at gas train
outlet flange) and if necessary, correct
gas pressure pBr via adjustment screw
S in accordance with the table on page
16. After start up, no further changes
should be made.

09/2018 - Art. Nr. 4200 1038 2701A18
Commissioning
Confirmation of "Manual Handshake" data
The following sequence for confirming or cancelling the data entry is the same for a number of different changes to the
parameters. For this reason, this sequence is not illustrated in detail for each of the parameter settings outlined below. The
parameter modifications which require a "Manual Handshake" are highlighted on the following pages.
These parameter modifications are assigned the following reference:
Manual Handshake
You are now asked to confirm the modifications that have been made.
Accept or cancel the entry
The "Manual Handshake" is explained below using menu 5 as an example.
The following parameters have been modified in the example:
- Density test activated after burner cycle
- Post-ventilation time activated (5 seconds)
The following screen appears once the parameter has been set and the data entry confirmed.
You are asked to confirm the data within 7 seconds. In this case: "Density test after burner cycle
activated".
A counter displaying the remaining time appears in the bottom right-hand corner of the screen.
Only confirm the displayed settings if they correspond with your specifications. The
entry can be accepted if both values are identical. The entry can be cancelled if there
is a deviation in values.
To confirm and save the parameter modification, select symbol and confirm with key .
To cancel the modifications, select symbol and confirm with key . Alternatively, you can
wait until the time has expired.
No modifications are made.
Note:
You will return to the previous menu if the procedure is cancelled. The previous unmodified
settings are displayed.
If you accept these values, a second screen appears.
In this case: "Post-ventilation time activated, duration 5 seconds".
Once again, the data must be confirmed within 7 seconds.
Only confirm the displayed settings if they correspond with your specifications. The
entry can be accepted if both values are identical. The entry can be cancelled if there
is a deviation in values.
Confirm the data or stop the procedure as described above.
If all values of the "Manual Handshake" have been confirmed, the data is saved in the
BurnerTronic. The modifications have been made and the procedure is completed. You return
to the starting screen.
Note:
If several parameters of a menu have been changed simultaneously (as in the example), the
individual modifications must be confirmed separately.

09/2018 - Art. Nr. 4200 1038 2701A 19
en
Commissioning
Menu 1: setting the servomotors
Pre-setting without flame
• For the next step, press
key .
The overview of the menus is
displayed, and the air and gas
flap position settings menu is
selected.
• Open the settings menu by
pressing the key.
The access code must be
entered at this point
(Access code 1)
• Increase or decrease the
value in increments by
repeatedly pressing
or .
• When the first figure has
been set, move the cursor to
the right by pressing .
• Repeat the operation until
you reach the last figure.
• Confirm the access code by
pressing key .
Special feature for
operation with
the frequency converter:
The fan motor is activated when menu
1 is accessed. Activation must be
confirmed, the screen is displayed as
shown on the left (Manual Handshake).
Continuous ventilation is activated for
the pre-set time period in menu 1. This
is necessary to obtain a feedback value
for the frequency converter channel.
This setting is deactivated again at the
end of menu 1.
Setting is carried out in 2 phases:
- Pre-setting without flame
- Setting the flame, to fine tune the
settings based on the combustion
results
When the burner is switched on, the
control and safety unit displays the
screen below.
Important
At this point, no setting position for the
servomotors has been defined,
therefore the burner cannot be started
under these conditions.
Modifying a value for the servomotor position:
- To modify the value of a position, move the cursor to the
corresponding location with the key.
- Select the value to be modified using the key, the
selected value will flash.
- Increase or decrease the value (in increments of 0.1°) by
repeatedly pressing or . For large modifications, press
and hold the or key, the value will scroll quickly up or
down.
- Confirm the new value using the key. The value stops
flashing.
The control and safety unit
then opens the settings mode.
The screen displays the
factory pre-settings for the
different positions of the fuel
and air flap (here: for an
electronically modulated gas
burner)
The menu displays all the
settings data using three
consecutive screens (air and
gas flap positions), i.e. for:
- Ignition position: (when
the menu is opened, the
cursor is positioned here)
- Output points P0 to P9
Access codes must be entered for the individual menus at various points in these instructions. Menu areas
protected by access codes are solely reserved for authorised, qualified and trained personnel.
The following menu description explains the menu for gas operation (figures), but is also valid for fuel oil operation.
Any deviations are noted where relevant.

09/2018 - Art. Nr. 4200 1038 2701A20
Commissioning
Menu 1: setting the servomotors
Pre-setting without flame
Risk of deflagration
Continue to monitor the CO, CO2 and O2
and soot content of the exhaust gases
during setting. Improve combustion
values in the event of CO emissions and
soot formation. The CO content should
be <10 ppm. The soot content should
be <1.
Function check
All safety equipment must be checked to
ensure that it is fully functional as part of
initial commissioning and also after
servicing or if the system has been out of
operation for any significant period of
time.
The check must be carried out following
the guidelines in the section entitled
Checking the safety equipment.
End of settings menu without flame
When all the positions of the servomotors have been determined according to the required
settings, it is possible to move on to the next set-up stage, setting with flame.
To do this, place the cursor in the lower part of the screen on the symbol and confirm by
pressing the key.
Only for operation with the frequency regulator:
Manual Handshake
You are now asked to confirm the modifications that have been made.
Accept or cancel the entry.
Note: continuous ventilation is deactivated when this menu is exited.
If you want to exit the menu without saving the pre-settings, position the cursor on the symbol
and confirm with the key.
A processing screen now appears for a short time. The "Setting with flame" comes after this
(see page 21).
It is also possible to delete all the settings at this point. To do this, position the cursor on the
symbol and confirm with the key.
The screen opposite appears.
At this point, it is possible to:
- delete the values; to do so, move the cursor to the symbol and confirm with the key. A
processing screen appears for a short time
- Exit the screen without modification using the symbol.
The previous menu is displayed.
General advice before starting the burner