Lamtec BT300 BurnerTronic User manual

www.lamtec.de
Sensors and Systems for Combustion Engineering
Quick Reference for Endusers
BurnerTronic BT300

2
Table of Contents
Table of Contents
1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Validity of these Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Life Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Disposal Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Safety Instructions - Common Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 For Your Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Mounting Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Security Advice - Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Installation Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4 Electrical Connection Flame Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.5 Commissioning Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.5.1 Fuel/Air Ratio Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.5.2 Basic Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.6 Tasks fulfilled by "authority on the subject" during Approval Test. . . . . . . . . . . . . . . . . . 11
3.6.1 Checking for Correct Parameter Setting in System . . . . . . . . . . . . . . . . . . . . . . 11
3.6.2 Checking the Fuel/Air Ratio Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.6.3 Checking Burner Sequencer Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5 Operating Control and Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1 UI300 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.2 Menu Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.3 Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.4 Information Menu Path. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.4.1 Burner Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.4.2 Recalling Fault History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.4.3 Software Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.4.4 Display of Check Sums . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.4.5 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.4.6 Positions of Actuators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.4.7 Check Digital Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.4.8 Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.5 Manual Menu Path. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.6 Settings Menu Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.6.1 Enter Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.6.2 Program Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.6.3 Other Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6 Leakage Test for Main Gas Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.1 Calculation Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.2 Leakage Test Process Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

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Table of Contents
6.3 Valve Leakage Test Venting Over the Roof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
7.1 Technical Data BT300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
7.2 Actuators 662R550... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.3 Actuators 662R5001... / 662R5003.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

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1 General Information
1 General Information
1.1 Validity of these Instructions
This manual is valid for the burner control system BurnerTronic BT300 in any configuration.
The information contained in this document refer to the software versions BT300 v3.5 and
UI300 v3.8. If you use any other software version as mentioned previously some of the de-
scribed functions may not be available or not all available functions work as described in this
document.
1.2 Life Cycle
BurnerTronic BT300 burner management system has a designed lifetime *of 250,000 burner
start-up cycles, which, under normal operating conditions in heating mode, correspond to ap-
prox. 10 years of usage (starting from the production date given on the type plate).
This lifetime is based on the endurance tests specified in standard EN230/EN298 and the ta-
ble containing the relevant test documentation as published by the European Association of
Component Manufacturers (Afecor) (www.afecor.org).
The designed lifetime is based on use of BT300 according to the manufacturer’s basic docu-
mentation. After reaching designed lifetime in terms of number of burner start-up cycles, or the
respective time of usage, the BT300 must be replaced by authorized personnel.
1.3 Disposal Notes
The device contains electrical and electronic components and must not be disposed of as do-
mestic waste. The local and currently valid legislation absolutely must be observed.
*The designed lifetime is not the warranty time specified in the Terms of Delivery

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2 Safety
2 Safety
2.1 Safety Instructions - Common Information
The following symbols are used in this document to draw the user's attention to important safe-
ty information. They are located at points where the information is required. It is essential that
the safety information is observed and followed, and that applies particularly to the warnings.
DANGER!
This draws the user's attention to imminent danger. If it is not avoided, it will result in death or
very serious injury. The plant including its surroundings could be damaged.
WARNING!
This draws the user's attention to the possibility of imminent danger. If it is not avoided, it may
result in death or very serious injury. The plant including its surroundings could be damaged.
CAUTION!
This draws the user's attention to the possibility of imminent danger. If it is not avoided, it may
result in minor injuries. The plant including its surroundings could be damaged.
NOTICE
This draws the user's attention to important additional information about the system or system
components and offers further tips.
The safety information described above is incorporated into the instructions.
Thus, the operator is requested to:
1 Comply with the accident prevention regulations whenever work is being carried out.
2 Do everything possible within his control to prevent personal injury and damage to prop-
erty.

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3 For Your Safety
3 For Your Safety
Please observe the safety instructions to avoid personal injury and damage to property and
the environment!
The BT300 is a safety device! The device must not be opened, interfered with or modified.
LAMTEC assumes no liability for damages arising as a result of unauthorised interference!
• After commissioning and after each maintenance action check the exhaust gas values
across the entire power range.
• Qualified specialist staff are required to carry out all activities (assembly, installation, ser-
vicing, etc.).
• The burner or boiler manufacturer will ensure that the BT300 base unit is compliant with
protection class IP40 or IP54 for outdoor use in accordance with DIN EN 60 529.
• The hazard risk in the event of external fire, traffic, wind, tidal waves and earthquakes de-
pends on the installation situation and the location of the gas appliance. It shall be as-
sessed separately where appropriate.
• Before working in the connection area, switch off the power supply to the plant from all
poles. Ensure that it cannot be switched back on and that the plant is voltage-free. There
is a risk of electric shock when the plant is not switched off.
• Place and secure the protection against contact on the BT300 and on all connected elec-
trical parts. The cover must fulfil the design, stability and protection requirements of
EN 60730.
• Plug connectors X30 - X34 have no protective separation from the mains voltage. To re-
place or disconnect the plug connectors, all poles of the plant must be disconnected from
the mains.
• After each activity (e.g. assembly, installation, servicing, etc.) check wiring and
parameters to make sure it is in good working condition.
• If the equipment is dropped or suffers impact, you should no longer commission it. The
safety functions may also be impaired but fail to show any obvious external damage.
• When the ratio curves are being programmed, the adjuster will continually monitor the
quality of the plant's combustion (e.g. using an exhaust gas analysis station). In the event
that the combustion values are inadequate or the conditions are potentially harmful, the
adjuster will take suitable action, e.g. switch off the system manually.
• These operating instructions describe many possible applications and functions and
should be used as guidelines. Carry out functional tests on the test bench and/or in the
plant application to ensure correct functioning and document the results.
Follow additional instructions to guarantee safety and reliability while operating the BT300:
• Condensation and humidity are to be avoided. If necessary, make sure that the installation
is sufficiently dry before you switch it on.
• Avoid static charge having a destructive effect in case of touching the device's electronic
components.
NOTICE
LAMTEC recommends that you use ESD equipment while working on electrics/electronics.

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3 For Your Safety
3.1 Mounting Notes
• Please consider protection against contact when installing the Gerät. Protection classes
as IP 40 - IP 54 are minimum requirements for outdoor use in accordance with EN 60529
and therefore obligatory.
• The protective cover of the BurnerTronic may only be opened by trained, qualified person-
nel.
• Make sure that settings for safety-relevant parameters are set in line with the requirements
applicable to each type of combustion requiring monitoring and conform to the applicable
standards (by checking device parameters via operating elements or using remote-control
software after commissioning). To verify settings you should also refer to manufacturer’s
documentation of the combustion plant. Protecting the parameters in level 1 by setting a
password will prevent any unauthorised change.
• Save setting values for the actuating elements across the power range of the burner as
follows:
– Quantity of fuel
– Quantity of air
– All additional, safety-relevant actuating variables of the combustion
– While burner is modulating with at least five different firing-rate points
• Make sure that the combustion equipment operates stably and safely throughout the pow-
er range and in all combustion modes. For this purpose you should adjust the following
values correctly:
– Actuating elements
– Parameter settings of the CO/O2controller
– Combustion chamber pressure
– Fuel pressure
– Temperature
– Pressure of combustion air
– Heating value of fuel
• Ensure the connection between the actuators and control valves is form-fit throughout,
gearing this towards the maximum controlling torques of the actuators.
• Only use external flame monitors compliant with DIN EN 298 or DIN EN 230 and author-
ised for continuous operation. Safety time of flame monitor must not extend 1 s.
• If the valve testing system is activated, connect the supply-side solenoid valve to terminal
X01 and the burner-side solenoid valve to terminal X02. Connect the pressure monitor of
the valve testing system to terminal X05. Adjust the gas pressure monitor and the dimen-
sions of the test section in order to make sure that the valve testing system is detecting a
maximum leakage gas volume of 0.1 % in relation to the gas flow rate (minimum 50 dm³/
h) at maximum combustion heat output.
• Consider the potential danger depending on installation situation and position where the-
pressure equipment is being installed. Bear in mind the risk of external fire and the impact
from traffic, wind and earthquake.
• When fixing duomodul plug-in connectors to insulation displacement technology (IDT) use
HZ-M35 a modular crimping tool from Lumberg (see www.lumberg.com).

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3 For Your Safety
3.2 Security Advice - Mounting
• Compliance with national safety regulations and standards is obligatory at all times.
• During the assembly and installation process, you must meet the standard requirements
of DIN VDE 0100, 0550 and DIN VDE 0722
• To mount the BT300 basic unit, use screw fittings with an M4 thread (UNC32) and a max-
imum tightening torque of 1.8 Nm for fastening all four fixing points. Keep in mind that
housings have improved mechanical stability when connected on surrounding contact sur-
faces.
Generally connect to an even mounting surface.
NOTICE
Deterioration of the 0.8 Nm servomotor through opening.
Opening the servomotor in a different position other than the cap of the electrical connection,
destroys the servomotor.
The warranty expires.
Open the servomotor at the cap of the electrical connection only.
NOTICE
Damaging the servomotors with 1.2 Nm and 9.0 Nm through opening.
Opening the servomotor destroys the servomotor.
The warranty expires.

9
3 For Your Safety
3.3 Installation Notes
• Lay high-voltage ignition cable always separately and in safe distance from device and
other cables.
• Only trained, qualified personnel may open the BurnerTronic’s cover.
• Observe local and national regulations when wiring the electric cables inside the burner.
• Tighten the screw terminals of the BT300 using a tightening torque of > 0.5 Nm.
• Supply the feed cable with L, N and PE only. The N neutral conductor must not have po-
tential difference to the PE protective conductor.
• The pre-fuse for the BT300 should be max.10 A slow-blow.
• Phase, neutral and central point conductors must not be interchanged (this would lead to
dangerous malfunctioning, loss of protection against contact, etc.).
• The strain relief for the connected cables must comply with standards (e.g. DIN EN 60730
and DIN EN 60335).
• Make sure that no spliced strands can come into contact with any of the adjacent connec-
tions. Use appropriate end sleeves.
• The burner manufacturer is obligated to supply unused connections on the BT300 with
dummy plugs.
• To replace or disconnect the plug connectors, all poles of the plant must be disconnected
from the mains.
• Make a form-fit connection between the actuators and actuating elements for fuel and
combustion air, as well as a form-fit connection for any additional actuator element.
• Optional components with safety extra low voltage (SELV) must be safely separated from
the mains. Otherwise this can cause an electrical shock or damage the device due to a
short-circuit.
• You may connect only passive devices or devices without feedback effects at the 230V
outputs of the BT300 (like relays without additional voltage connection). In case of error it
must be guaranteed that BT300 is not fed with 230 V by this terminals.
• To avoid disruption of the UI300’s display during ignition, a damping resistor of 1 ... 5 k
must be installed in the high-voltage ignition line.
• To avoid disturbance on the Bus, the termination must be active on the first and the last
device connected to the bus must be terminated.
3.4 Electrical Connection Flame Sensor
Interruptions and losses in signal transmission need to be minimised:
• Do not wire the sensor cable with other cables.
Flame signal is reduced through line capacities. Use a separate 7-pole cable.
• Consider the permitted length of sensor cables.
• The ionisation flame sensor supplied from the mains is not protected against contact. Pro-
tection against accidental contact is therefore obligatory.
• Ground the burner according to instructions – grounding the boiler itself is not sufficient!
• Position ignition electrode and ionisation flame sensor where spark cannot hit ionisation
flame sensor (risk of electrical overloading).

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3 For Your Safety
3.5 Commissioning Notes
• Check all safety functions during commissioning!
• There is no feature to prevent RASTx connector plugs being transposed. Therefore en-
sure the correct assignment of the plant's plugs prior to commissioning.
• Check electromagnetic emissions specific to the application.
• While installing and commissioning the plant, the person in charge of the plant/heating
technician needs to document the following:
– Parameter set values
– Setting values (e.g. curve progressions)
– Values describing the fuel/air ratio control.
This data can be printed using LSB remote software or alternatively being kept as a hand-
written note.
Retain this documentation and have it checked by the ’authority on the subject’.
WARNING!
For BT300 parameter settings which deviate from the application standards can be carried out
in access level 2. For this reason, check whether the parameter settings are consistent with
the corresponding application standards (e.g. EN 298, EN 230, EN 676, EN 267, etc.) or the
respective plant has to be approved separately.
WARNING!
While unlocking the safety interlock chain in the mode ’BURNER OFF’ BT300 does not lock
the system. BT300 prevents a burner start-up until safety interlock chains are locked.
In case your application needs an interlock of the plant while unlocking the safety interlock
chain also in ’BURNER OFF’ mode you must take suitable measures at the plant.
NOTICE
Should the safety times be changed, these changes must be documented on the devices
Bring an additional sticker for the device.
Note the changed safety times on this sticker.
The details on this sticker must be clear for reading and non-smudge.
3.5.1 Fuel/Air Ratio Control
• Guarantee proper operation by ensuring adequate excess air.
In order to do this, set the values for fuel and combustion air in such a way that
– combustion chamber pressure
– fuel pressure
– temperature and pressure of the combustion air
can ensure proper, stable operation through the entire range of burner firing rate until next
periodic inspection.
• Pay attention to wear and tear of actuators and actuator elements.
• Measure characteristic values of combustion process to document proper operation.

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3 For Your Safety
3.5.2 Basic Device
Check the following items prior to commissioning:
• Valves must be assigned correctly to valve outputs on BT300.
• Correct setting of time parameters (especially safety and pre-purge times).
• Flame sensor functioning well in case of:
• flame blow-off during operation (incl. flame-out response time)
• ambient light is present during pre-purge period
• at a missing flame formation while end of safety period starts
• Activation of the valve leakage control function of gas valves and correct leakage meas-
urement, when required by an application.
3.6 Tasks fulfilled by "authority on the subject" during Approval Test
By specifying the assigned DIN registration number and product ID number the manufacturer
confirms that model BT300 burner control system is consistent with type-tested system.
The connection between actuators and actuator elements for fuel and combustion air and also
to any additional actuator elements used must be form-fit.
3.6.1 Checking for Correct Parameter Setting in System
While installing and commissioning the plant the person in charge of the plant/heating techni-
cian needs to document the following:
• Parameter set values
• Setting values (e.g. curve progressions)
• Values describing fuel/air ratio control.
This data can be printed using LSB Remote Software or alternatively being kept as a hand-
written note.
Retain this documentation and have it checked by the ’authority on the subject’.
NOTICE
For BT300 parameter settings which deviate from application standards can be carried out in
access level 2. For this reason, check whether the parameter settings are consistent with the
corresponding application standards (e.g. EN 676, EN 267, etc.) or the respective plant has
to be approved separately.
3.6.2 Checking the Fuel/Air Ratio Control System
Save setting values (curve parameters) for actuator elements, fuel and combustion air through
the complete range of burner firing rate in sufficient number.
Select setting values of fuel and combustion air considering combustion chamber pressure,
fuel pressure, temperature and pressure of the combustion air in order to guarantee proper
operation with adequate excess air through the entire range of burner firing rate.
The burner/boiler manufacturer has to document this by measuring reference values of the
combustion process.

12
3 For Your Safety
3.6.3 Checking Burner Sequencer Part
Check the following:
• Correct setting of time parameters (especially safety and pre-purge periods).
• Whether an ionisation or approved self-checking flame sensor is used as only these types
allow continuous operation.
• Functioning of flame sensor
– in case of flame blow-off during operation
– parasitic light being present during pre-purge period
– missing flame formation at the end of the safety-period
• Check the performance of all available and/or essential incoming signals, such as:
– Air pressure switch
– Gas pressure - min./oil pressure - min.
– Safety interlock chain (e.g. STB)
• Activated leakage control function for gas valves if required for application purposes.
– If necessary, ensure a correct leakage quantification.

13
4 Functional Description
4 Functional Description
BT300 combines the benefits of an electronic fuel/air ratio control system with up to three mo-
torised actuator elements and optional modules like an analogue output for speed control of
the combustion air fan with an electronic burner control unit. The leakage test, flame monitor-
ing system, power control unit and (optional) CO/O2controller for control and optimisation of
an oil or gas-fired forced-draught burner are all integrated.
BT300 is suitable for virtually all combustion plants. Safety interlock chains, monitors (e.g. gas
and air pressure) and sensors are wired directly to the BT300. This greatly reduces the cost
of additional relays and wiring. The BT300 is designed to be attached to the burner. The short
wiring paths also save money. As a result, BT300 is particularly suitable as standard equip-
ment for monoblock burners.
The compact design of BT300 burner control system also has its advantages during commis-
sioning. Standardisation of wiring and operator interface minimises sources of errors right from
the start. Moreover, intelligent display information is making search for errors much easier.
The BT300 is available in five designs:
Burner sequencer and fuel/air ratio control can be adjusted for a wide range of combustion
conditions by setting parameters. The BT300 for oil and gas can be set to start with and with-
out pilot burner. The integrated leakage test can be run before ignition or after shutting down
the burner.
Starting without pre-purge using gas is available in accordance with EN676.
The setting of fuel/air ratio curves can be optimised using optional CO/O2control during op-
eration. This helps to counteract conditions that interfere with combustion. This ensures a per-
manent burner operation at the greatest possible efficiency.
Operating and fault messages are displayed by symbols and numbers on UI300 User Inter-
face. Plant-specific configurations and settings of fuel/air ratio control curves are operated via
menu of UI300 User Interface.
An operating and start-up counter is integrated.
The optional LCM100 power control unit with two setpoints, external setpoint shift (control by
atmospheric condition) and start-up control is also available.
• BT320 2 motorised control outputs
1 continuous output 0 ... 10 V, 0/4 ... 20 mA for speed control of the
combustion air fan using VSM100 (optional)
intermittent operation
• BT330 3 motorised control outputs
1 continuous output 0 ... 10 V, 0/4 ... 20 mA for speed control of the
combustion air fan using VSM100 (optional)
Approved for continuous operation only in combination with
flame sensors capable of running continuously
• BT331 Same range of functions as BT330 but including following certificates:
DIN EN 61508:2002 parts 1-7 for SIL 3
Performance Level PLE according DIN EN ISO 13849-1
• BT340 3 motorised control outputs
Oil-gas dual-fuel operation via DFM300
1 continuous output 0 ... 10 V, 0/4 ... 20 mA for speed control of the
combustion air fan using VSM100 (optional)
approved for continuous operation only in combination with
flame sensors capable of running continuously
• BT341 Same range of functions as BT340 but also including following certificates:
DIN EN 61508:2002 parts 1-7 for SIL 3
Performance Level PLE according DIN EN ISO 13849-1

14
5 Operating Control and Displays
5 Operating Control and Displays
5.1 UI300 User Interface
Display
The display shows in pictogram:
• the menu structure
• operating status
• parameters
• error messages
Back key
Back to previous window.
Cursor keys
ENTER keys
Fig. 5-1 User interface
1 Display
2 BACK key
3 Cursor keys
4 ENTER key
To navigate in the menu using cursor keys
Use ’left’ and ’right’ keys to move step by step in a selected row. At the end of the
selected row the cursor jumps down to the next row, if possible.
In a multiline menu use ’up’ and ’down’ keys to switch to other rows.
To display parameters, switch between various fields.
Press ENTER to call up a menu on the start screen. Select a sub-menu in the menu
window. Transfer setting values by pressing ENTER key in a parameter window.
Use a flushing, red ENTER key to release a fault interlocker.
If the ENTER key is permanently lit red, a fault with an automatic restart is displayed.

15
5 Operating Control and Displays
5.2 Menu Functions
The menu is divided into five paths:
INFO
Select INFO path for information about the following:
• Burner
• Faults/Fault history
• Software version
• Display of check sums
• Serial number
• Actuator positions (current damper position for each channel)
• Digital inputs/outputs
MANUAL
Select MANUAL to:
• Start and stop burner by hand
• Adjust internal burner firing rate
SETTINGS
Select the SETTINGS path for getting information/make changes to:
• Password
• Burner settings (display and settings)
• Actuator elements settings (display)
• Air/fuel control system
• Deletion of curve sets
• Display settings
INFO
MANUAL
SETTINGS
DATA PROCESSING (release level 1 is mandatory)

16
5 Operating Control and Displays
DATA PROCESSING
Use DATA PROCESSING to:
• Read out datasets from the BT300
• To transfer datasets to the BT300
5.3 Main Menu
NOTICE
The parameters of release level 1 must be protected by a password against unauthorised
changes. This password must differ to ’0000’.
5.4 Information Menu Path
Fig. 5-2 Main menu
1 INFORMATION menu path [selected]
2 Display of fuel type
3 Bar graph of internal firing rate in %
(0 - 100)
4 MANUAL menu path
5 SETTINGS menu path
6 Release level
7 DATA HANDLING menu path*
8 Window number
* Excess level 1 is mandatory
Burner information Error history Software ver-
sion
Checksums
Serial number Continuous output configuration
(display only)
Digital
inputs/outputs

17
5 Operating Control and Displays
5.4.1 Burner Details
Displaying Operating Hours and Burner Starts
Display of operating hours Number of operating hours in total (device
connected with mains)
Number of operating hours in oil operation
Number of operating hours in gas operation
Display of burner starts Number of burner starts in oil operation
Number of burner starts in gas operation

18
5 Operating Control and Displays
5.4.2 Recalling Fault History
Displaying Burner Faults
NOTICE
Information concerning fault and diagnostic codes can be found in the list of fault codes.
For fault analysis a fault code and diagnostic code D1 or D2 is required.
01
02
Fault code (Last 10 faults are stored,
no. 01 is the latest fault)
No. of operating hours when
fault has occurred
D1 Diagnostic code 1 Duration of the fault
D2 Diagnostic code 2

19
5 Operating Control and Displays
Fault unlock
How to unlock BT300
A fault is pending and the ENTER key is flashing.
1. Press ENTER key.
BT300 is not locked anymore.
Changing from fault unlock to main menu:
A fault is pending and the ENTER key is flashing
1. Press BACK key.
ENTER key isn’t flashing any more.
The display returns to main menu.
An error number is flashing in the display on top, left hand.
UI300 can be used as usual.
Back to fault unlock
An error number is flashing in the display on top, left hand.
1. Use BACK key to switch back to main menu.
2. Press arrow-key left.
ENTER key is flashing again.
BT300 can be unlocked.
NOTICE
A permanent red light on the ENER key indicates gas shortage. A countdown is running to the
next start. This countdown can be interrupted by the ENTER key.