Logotherm LambdaControl 2 BSB User manual

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Index
1Introduction ....................................................................................................................5
1.0 Abbreviations and technical terms ............................................................................................................. 5
1.1 Display and operating element................................................................................................................... 6
1.2 Function display......................................................................................................................................... 7
1.3 AFO: Fire Optimisation............................................................................................................................... 7
1.4 KLA: Reduced Boiler Output ....................................................................................................................... 7
1.5 AAO: Combustion and Burnout Optimisation.............................................................................................. 8
1.6 RSA: Rapid System Heating ........................................................................................................................ 8
1.7 SLA: Peak Load Coverage............................................................................................................................ 8
1.8 PAE: Accumulator Run-up Easing................................................................................................................ 9
1.9 Residual Heat Use.....................................................................................................................................10
1.10 RWO: Residual Heat Optimisation .............................................................................................................10
1.11 BSB: Basic Principles .................................................................................................................................11
1.12 BSB: Fuel Calculation without heating demand..........................................................................................11
1.13 BSB: Fuel calculation with heating demand................................................................................................11
1.14 BSB: ABO –Burning Demand Optimisation ................................................................................................12
1.15 Minimum Flue gas Temperature................................................................................................................12
1.16 Refuel signal without BSB .........................................................................................................................13
1.17 Refuel signal with BSB - Heating date Calculation ......................................................................................13
1.18 Integrated fuel types.................................................................................................................................14
1.19 Water content –moisture content of fuel..................................................................................................15
1.20 Refuel amount..........................................................................................................................................15
1.21 Energy content and usable energy content of the fuel ...............................................................................15
1.22 Protective functions for the boiler/ pumps –valve stuck protection...........................................................16
2Commissioning ..............................................................................................................17
2.1 Safety instructions for initial system operation..........................................................................................17
2.2 Minimum requirements for a trial run or heating test................................................................................17
2.3 Technician password.................................................................................................................................18
2.4 Commissioning settings ............................................................................................................................18
2.5Changes to system settings .......................................................................................................................22
3Important notes for heating ..........................................................................................23
3.1 Opening door(s) and firing ........................................................................................................................23
3.2 Refuelling in operating status “Boiler ON” .................................................................................................23
3.3 Flue gas temperature too high ..................................................................................................................23
3.4 Safety shutdown.......................................................................................................................................24
3.5 Service program: “Small service” and “Large service” ................................................................................24
3.6 Type of wood - Moisture - Change refuel amount ......................................................................................25
3.7 Operation display: “Boiler ON” / “Boiler OFF”............................................................................................26
4Wood Boiler ..................................................................................................................27
4.1 Information ..............................................................................................................................................27
4.1.1 Operating data .................................................................................................................................................................. 27
4.1.2 Operations counter ........................................................................................................................................................... 28
4.1.3 Aggregate Wood Boiler display......................................................................................................................................... 30
4.1.4 Commissioning data display.............................................................................................................................................. 31
4.1.5 Display last error / delete last error.................................................................................................................................. 31
4.1.6 Display last note / delete last note ................................................................................................................................... 32
4.1.7 Delete values..................................................................................................................................................................... 32
4.2 Settings ....................................................................................................................................................33
4.2.1 Wood settings ................................................................................................................................................................... 33
4.2.2 BSB settings....................................................................................................................................................................... 34
4.2.3 Display............................................................................................................................................................................... 35
4.2.4 Initial settings .................................................................................................................................................................... 35
4.3 Chimney sweep test..................................................................................................................................38

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4.3.1 Example: Select Chimney sweep: Rated power ................................................................................................................ 39
4.4 Calibrate O2Sensor ...................................................................................................................................39
4.4.1 Manual calibration ............................................................................................................................................................ 39
4.4.2 Automatic calibration........................................................................................................................................................ 39
4.5 Aggregate test ..........................................................................................................................................40
5Accumulator ..................................................................................................................42
5.1 Logotherm conform sensor positioning .....................................................................................................43
5.2 Information ..............................................................................................................................................44
5.3 Settings ....................................................................................................................................................45
5.4 Aggregate test ..........................................................................................................................................46
6Hot water tank ..............................................................................................................47
6.1 Information ..............................................................................................................................................47
6.2 Operation mode .......................................................................................................................................48
6.3 Settings ....................................................................................................................................................48
6.4 Reloading ................................................................................................................................................50
6.5 Aggregate test ..........................................................................................................................................50
7Heating circuit 1(2) ........................................................................................................51
7.1 Information ..............................................................................................................................................51
7.2 Operation mode .......................................................................................................................................52
7.3 Pump switch-off (ECO) ..............................................................................................................................53
7.4 Heating times ...........................................................................................................................................54
7.5 Holiday.....................................................................................................................................................55
7.6 Settings ....................................................................................................................................................55
7.7 Remote Control Panel...............................................................................................................................59
7.8 Aggregate test ..........................................................................................................................................60
7.9 Remote control panel WRS 2000 ...............................................................................................................61
8Date and time................................................................................................................61
9DCF77- Receiver.............................................................................................................62
9.1 Information ..............................................................................................................................................62
9.2 Settings ....................................................................................................................................................62
10 Solar system ..................................................................................................................63
10.1 Information ..............................................................................................................................................64
10.2 Operation mode .......................................................................................................................................64
10.3 Settings ....................................................................................................................................................65
10.4 Aggregate test ..........................................................................................................................................66
10.5 Simplified diagrams, 2-circuit system / Principle 1 / 2(3) ............................................................................67
11 Electric load circuit ........................................................................................................68
11.1 Other application possibilities of the E-load circuit ....................................................................................68
11.1 Information ..............................................................................................................................................70
11.2 Operation mode .......................................................................................................................................70
11.3 Settings ....................................................................................................................................................71
11.4 Aggregate test ..........................................................................................................................................71
12 Heating element............................................................................................................72
12.1 Information ..............................................................................................................................................72
12.2 Operation mode .......................................................................................................................................72
12.3 Settings ....................................................................................................................................................73
12.3 Aggregate test ..........................................................................................................................................73
13 Pellet/Oil/Gas boiler......................................................................................................74
13.1 Information ..............................................................................................................................................74
13.2 Operation mode .......................................................................................................................................75
13.3 Settings ....................................................................................................................................................76
13.4 Chimney sweep ........................................................................................................................................77

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13.5 Aggregate test ..........................................................................................................................................78
14 System operation mode.................................................................................................79
14.1 Operation mode .......................................................................................................................................79
14.2 Holiday.....................................................................................................................................................79
14.3 Summer operation....................................................................................................................................80
15 Errors - Notes.................................................................................................................81
Note 1.16: Protective functions ............................................................................................................................81
Error 1.17: Ext.-1 HC BUS-Communication ............................................................................................................81
Error 1.18: Ext.-Ignition BUS-Communication........................................................................................................81
Error 2.30: Ignition failed .....................................................................................................................................82
Error 2.31: Ignition error ......................................................................................................................................82
Error 26.01: Memory error (EE-Prom)...................................................................................................................82
Error 26.02: Program surveillance (watchdog) ......................................................................................................82
Error 26.03: Voltage reference .............................................................................................................................82
Error 26.04: Base point control.............................................................................................................................83
Error 26.05: ADC (Analogue/digital converter) ......................................................................................................83
Error 26.06: Sensor not connected........................................................................................................................83
Error 26.07: Water shortage fuse activated...........................................................................................................84
Error 26.08: STB triggered ....................................................................................................................................84
Error 26.09: Boiler sensor.....................................................................................................................................85
Error 26.10: Actuator V1 ......................................................................................................................................85
Error 26.11: Actuator V2 ......................................................................................................................................85
Error 26.13: O2Sensor..........................................................................................................................................86
Error 26.14: O2Sensor..........................................................................................................................................86
Error 26.15: O2Sensor..........................................................................................................................................87
Error 26.17: O2Sensor..........................................................................................................................................87
Error 26.18: O2Sensor..........................................................................................................................................88
Error 26.19: O2Sensor..........................................................................................................................................88
Note 26.21: Overtemperature ..............................................................................................................................89
Error 26.22: Flue gas sensor..................................................................................................................................89
Error 26.23: Return sensor ...................................................................................................................................90
Error 26.24: Date –Time not set...........................................................................................................................90
Error 26.25: DCF77-Receiver No reception ............................................................................................................91
Error 26.26: Outside sensor..................................................................................................................................91
Note 26.27: Flow rate too low ..............................................................................................................................92
Error 26.28: Return temperature too low..............................................................................................................92
Note 26.29: Flue gas temperature too high...........................................................................................................92
Note 26.30: Small service required .......................................................................................................................92
Note 26.31: Large service required .......................................................................................................................93
Note 26.32: System overload ...............................................................................................................................93
Note 26.33: Fuel too large or too wet ...................................................................................................................93
Note 26.34: Fuel too small or too dry ...................................................................................................................94
Error 26.35: Accumulator sensor F4 ......................................................................................................................94
Error 26.36: Accumulator sensor WE2...................................................................................................................94
Error 26.37: BSB F5(1-4) .......................................................................................................................................95
Note 26.38: Boiler manual OFF.............................................................................................................................95
Error 26.40: Hot water sensor at WE1...................................................................................................................95
Error 26.40: Hot water sensor at WE2...................................................................................................................96
Error 26.42: Heating circuit 1 sensor F8.................................................................................................................96
Error 26.43: Heating circuit 2 sensor WE2 .............................................................................................................96
Error 26.44: Heating element sensor at WE1.........................................................................................................97
Error 26.44: Heating element sensor at WE2.........................................................................................................97
Error 26.45: Solar panel sensor WE1.....................................................................................................................98

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Error 26.46: Pellet/Oil/Gas boiler Sensor at WE1 ..................................................................................................98
Error 26.46: Pellet/Oil/Gas boiler sensor at WE2...................................................................................................99
Note 26.47: Pellet/Oil/Gas boiler –Residual heat use ...........................................................................................99
Error 26.48: WRS2000 sensor ...............................................................................................................................99
Error 26.49: Heating circuit 1 WRS-D ..................................................................................................................100
Error 26.50: WRS-D HC1 sensor ..........................................................................................................................100
Error 26.51: Heating circuit 2 WRS-D ..................................................................................................................100
Error 26.52: WRS-D HC2 sensor ..........................................................................................................................100
Error 26.53: Outside sensor from BUS.................................................................................................................101
Error 26.54: Accumulator sensor F4 from BUS.....................................................................................................101
Error 26.55: BSB F5(1 –4) from BUS....................................................................................................................101
Error 26.56: Accumulator sensor WE2 from BUS .................................................................................................102
Error 26.57: BSB F5(1 –4) from BUS at Accumulator 2.........................................................................................102
Error 26.58: Hot water sensor from BUS .............................................................................................................102
Error 26.59: Hot water sensor 2 from BUS...........................................................................................................103
Error 26.60: E-load circuit Hot water sensor at WE1 ............................................................................................103
Error 26.60: E-load circuit Hot water sensor at WE2 ............................................................................................103
Error 26.61: E-load circuit Hot water sensor from BUS.........................................................................................104
Error 26.62: E-load circuit Accumulator sensor F4 ...............................................................................................104
Error 26.63: E-load circuit Accumulator sensor from vom BUS.............................................................................104
16 TÜV: Tests and engineering standards .........................................................................105
17 TÜV: Notes about safety functions ..............................................................................106
17.1 Flush chimney after power failure ...........................................................................................................106
17.2 Open door(s) in operating status “Boiler ON” ..........................................................................................106
17.3 Open door(s) in operating status “Boiler OFF” .........................................................................................106
17.4 Pellet/Oil/Gas enabling...........................................................................................................................106
17.5 E-Load circuit enabling ............................................................................................................................106
18 Tips and recommendations..........................................................................................107
18.1 System overload (Note 26.32) .................................................................................................................107
18.2 Calculating the loading capacity of the accumulator.................................................................................107
19 Subject Index...............................................................................................................108

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1 Introduction
Dear customer, Dear heating technician,
The controller LambdaControl 2 BSB® is the result of many years of research and resultant knowledge of Logotherm. It
contains the latest innovations in combustion and system technology and offers the highest level of quality and
perfection.
Numerous of LambdaControl 2 BSB®´s automatic functions are unique new developments by our company. This system
fundamentally operates by automatically “learning” and “gathering” pertinent characteristics of your heating system
and its operating methods. This information is then used to calculate the optimal settings resulting in the highest level
of comfort and efficiency, an extraordinary eco-friendliness and last but not least in a significant reduction of energy
costs.
Alongside with other functions, the fuel consumption calculation (BSB) when firing or refuelling the system and the
combustion and burnout optimisation (AAO) are the most significant new developments.
1.0 Abbreviations and technical terms
AAO Combustion and Burnout Optimisation
ABO Combustion Demand Optimisation
Acc. t.-F4 Temperature at accumulator sensor F4 in accumulator 1
Acc. t.-WE2 Temperature at accumulator sensor in accumulator 2
AF. Anti-freeze
AFO Fire Optimisation
BSB Fuel Calculation
EElectric (i.e. in electric load circuit)
ECO Reduced operations
F Sensor
Heat system Installed heating system
K Kelvin (a difference of 10K corresponds to a change of 10°C)
KLA Reduced Boiler Output
KV-KR Boiler flow –Boiler return
kW Kilowatt (power)
kWh Kilowatt/hr. (energy)
Legionella Pathogen, proliferate especially in temperatures from 25°C to 50°C
O2Sensor Oxygen sensor
PAE Accumulator Run-up Easing
PH Heating demand
PK Boiler output
RSA Rapid System Heating
RWO Residual Heat Optimisation
SK1(2) Solar panel 1 /Solar panel 2 activated
SLA Peak Load Coverage
STB Safety Temperature Limiter
TA Outside temperature
TAD Flue gas Temperature Difference = Flue gas temp. - Boiler temp.
TR Return temperature
TV Flow temperature
TWR Living room temperature
V1 Primary Combustion air
V2 Secondary Combustion air
WRS Remote control panel
HW Hot water (ex. in hot water tank, hot water charge pump)
Y1 Return valve

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Y2 Load valve
≤smaller than or the same as
≥greater than or the same as
< smaller than
> greater than
λLambda (air ratio)
1.1 Display and operating element
Display 1: Shows the operation mode of the wood boiler –when lit “Boiler ON”.
Display 2: Refuel signal. Displays when additional fuel can be added. Only in operation mode “Boiler OFF”.
Display 3: Error indicator “red” –illuminates when an error occurs, which prevents heating.
Follow the displayed instructions.
Display 4: Error and note indicator “amber” –illuminates in case of an error or if a note is displayed. Leaves boiler
operation possible. Follow the displayed instructions.
Display 5: Illuminated text display. If the boiler is switched off and there is no error or note, the screen will automatically
go dark after 15 minutes (power saving function). Press any button to deactivate the power saving function.
After deactivating this function all buttons will function normally.
Button 6 ▲: This button has multiple functions: navigating through the menus, changing set values, deactivating the KLA
function.
Button 7 ▼: This button has multiple functions: navigating through the menus, changing set values, activating the KLA
function (KLA function is not available for all boiler types).
In “Boiler OFF”, Button 7 (▼) is also used to call up or end the service program (“Service small/large”).
Please take notice of the note “Service” displayed.
If the firing process is started after a successful service, it is possible to change directly into the firing program
by pressing Button 9 (►) without ending the service function first. However, the service interval will not be
reset in that case.
Safety Shutdown: Pressing Button 7 (▼) twice, in “Boiler ON” mode, shuts off the boiler.
Please note: This shutdown is for emergency situations only, not a general operating function!
Please note text instructions.
Button 8 ◄: To enter the menu “Selection” and select a menu item or value. The buttons 6 (▲) and 7 (▼) are used to query
information and/or settings can be changed (button 6: up in the menu, button 7: down in the menu). To
confirm changed settings, press button 8 (◄).
Button 9 ►: To fire (in “Boiler OFF“) or to refuel (in “Boiler ON“). Button 9 (►) is also used to leave a menu or to switch
to the next higher menu.
Fire: Press the button once to leave the power saving mode. Press it twice to activate the flue gas fan and enter
the safety program for “Open door(s)”. After that, the refuel program starts.
10
6
10
7
3
4
2
1
8
5
9

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Please follow the displayed instructions.
If the refuel program was activated by mistake, press button 9 (►)to deactivate it.
Once the required flue gas temperature is reached an audible alert sounds to indicate that the door(s)
need to be closed. Then “Display 1” illuminates –“Boiler ON”.
Please follow the displayed instructions.
Refuel: Is the “Boiler ON” and button 9 (►) is pressed the safety program for “Open door(s)” is entered and the
refuel program starts. The fuel must be added quickly. Then the fuel door must be closed immediately.
Please follow the displayed instructions.
“Refuel” is displayed for about 5 minutes –regardless of the actual time required to refuel.
Button 10: Reset button of the electronic safety temperature limiter (STB). If the STB was set off due to a too high
boiler temperature and that temperature then dropped to 86°C or lower, button 10 can be used to reset
STB manually.
Please follow the instructions displayed.
After pressing button 10, the error display will be deleted automatically.
1.2 Function display
AAO Combustion and Burnout Optimisation ABO Combustion Demand Optimisation
AFO Fire Optimisation E-L Electric load circuit activated
Frost Anti-freeze activated KLA Reduced Boiler Output
Öl - Gas Pellet/Oil/Gas operation enabled PAE Accumulator Run-up Easing
RSA Rapid System Heating RWO Residual Heat Optimisation
SK1(2) Solar panel 1 (2) activated SLA Peak Load Coverage
Heating element activated
1.3 AFO: Fire Optimisation
Note: This basic function cannot be activated or deactivated manually. But, it is activated automatically
with each combustion.
When AFO is activated, AFO will be displayed.
Opening the door(s) (refuelling) in the operation mode “Boiler ON” is not advisable.
Recommendation: Do not refuel unless the “Refuel” sign is lit up.
Effect: AFO consists of several parameters programmed by the manufacturer, depending on the boiler
type and the fuel properties.
Function: After firing, the boiler will automatically enter the “AFO mode”. AFO-Output and duration depend
on the required primary and secondary combustion temperature and ash amount to keep minimal
emission to burn on a reduced output.
Use: Each combustion is carried out under practically the same –ideal conditions.
1.4 KLA: Reduced Boiler Output
Note: This basic function is not available for every boiler type.
KLA (▼) can be activated as required.
KLA is only useful, if more than one combustion are carried out per day –which is not possible in
some cases.
KLA is automatically deactivated at the beginning of each new combustion. By pressing the (▲)
button KLA can be deactivated during the combustion. When KLA is activated, KLA is displayed.
Function: If the (▼) button is pressed while in “Boiler ON” mode, the system will be regulated to the
smallest boiler output possible once completing the AFO mode –regardless of the heat demand.
This might result in a reduced flue gas temperature (see chapter 1.15).
Use: Depending on the boiler type and the fuel, the burning cycle can be extended, which can simplify
burning the remaining coal and/or remaining amber.

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1.5 AAO: Combustion and Burnout Optimisation
Alongside with BSB, AAO is the most important function. It regulates fuel properties, which are not always ideal in
practice.
Note: This basic function cannot be activated or deactivated manually.
When AAO is activated AAO displays.
Effect: If the combustion temperature is too low, the controller automatically increases the boiler output
to meet the minimum combustion temperature required. A too low combustion temperature
reduces the efficiency of the firing and can lead to increased emissions.
Possible reasons for an activation of AAO:
●Fuel is too large or too wet.
●If the fuel amount is running low in part load operation (burnout), AAO increases the boiler
output in order to reduce emissions.
●If the fuel chamber is “large” and the fuel is “wet”, AAO is also activated during the
combustion. The high vapour content in the flue gas, resulting from wet fuel (when the
amount of fuel is high), reduces the temperature of the embers. Therefore, AAO
automatically increases the boiler output. This can temporarily require combustion with ≥
35 kW from a boiler type with a rated power of 30kW.
Function: The controller recognizes this problem when the secondary air flap is in the position of the
minimal airflow and the current O2value is 1% higher than the set O2value. In that case the set
boiler output is ignored and the output is increased. Thanks to this automatic function not ideal
fuel properties are compensated in order to prevent combustion errors.
Use: Achieving the highest degree of efficiency with low emissions.
1.6 RSA: Rapid System Heating
Note: Setup is as follows:
“Accumulator” → “Settings” →9.05 RSA ON <.
Setting note: Low temperature heating 30°C to 40°C / Radiator heating or heating system with a hot water tank
45°C to 50°C.
Factory setting: 50°C / Setting range: 0°C to 60°C.
Setting 20°C: Can be advantageous, if the boiler output is significantly larger than the heating demand –then
RSA is not required.
If RSA is activated, RSA displays.
Use: The accumulator temperature quickly climbs to a “usable temperature” with enough of hot water
available for use. Thereby, sensible heat and usable hot water are produced quickly.
Effect: This function temporarily reduces the return temperature. Thus, the water quantity, released
from boiler and accumulator, increases. RSA can be executed multiple times per combustion. This
happens, if the temperature at the accumulator sensor drops under the in 9.05 RSA ON < set
value.
Function: If “Acc. t.-F4” is < than the in 9.05 RSA ON < set value, RSA function is activated.
1.7 SLA: Peak Load Coverage
Note: Setup is as follows:
“Accumulator” → “Settings” → 9.04 SLA ON <.
Setting note: Low temperature heating 40°C to 50°C / Radiator heating or heating system with a hot water tank
50°C to 60°C.
Factory setting: 60°C / Setting range: 20°C to 60°C.
If SLA is activated, SLA displays.
Use: If a higher output than the boiler rated output is required.
Effect: The boiler output is increased to its maximum output. The maximum output varies
depending on the boiler type, the type of fuel and its moisture content.
Function: After successfully completing AFO, SLA is automatically activated, if the “Acc. t.-F4”value is <

9
than the in 9.04 SLA ON < set value.
If the “Acc. t.-F4”exceeds the set value, SLA is deactivated and disabled for the next 30 minutes.
The SLA runtime is 60 minutes.
1.8 PAE: Accumulator Run-up Easing
Note: If PAE is activated, PAE displays. The current heat load release is displayed in:
“Accumulator” → “Information” → HC-release
PAE contains three functions with different effects:
Function 1: Heating demand limiter of the heating circuits regulated by the LambdaControl 2 BSB®
Function 2: Hot water preparation when “Acc. t.-F4”> 60°C
Function 3: When the hot water preparation is ON, but the increase in temperature is not enough for the hot
water tank.
Function 1:
Note: Setup is as follows:
“Accumulator” -> “Settings” -> 9.06 PAE ON <
This setting allows an adaptation of the heating circuit temperature level and the minimum
required hot water temperature 12.04 HW min.
Settings note: Low temperature heating 40°C to 50°C / Radiator heating or heating system with a hot water tank
50°C to 60°C.
Factory setting (Fact.): 50°C / Setting range: 20°C to 60°C.
Use: If the heating demand is high and the “Acc. t.-F4” is lower than required by the heating circuits,
PAE prevents the accumulator from heating up to capacity due to fully opened heating circuit
valves. If the entire accumulator is heated up, the heating time of the system is extended. Is the
heating circuit temperature too low, the boiler output cannot be given off to the radiators, but is
returned to the accumulator. Due to the downstream accumulator the “Acc. t.-F4” and the
heating circuit temperature increase slowly. This might give the impression that the boiler output
is too low. Since PAE throttles the heating circuit, it prevents that from happening.
In the factory setting PAE < 50°C, the hot water is quickly heated up to a usable temperature due
to the limitation of the heating demand.
Effect: Only available in “Boiler ON” mode and if the return valve is > 0% and the
“Acc. t.-F4”is < 9.06 PAE ON <.
Function: Factory setting: 50°C. An“Acc. t.-F4”≥ 50ºC does not influence the heating output of the heating
circuits –the HC-release is = 100%.
At an “Acc. t.-F4”≤ 30°C, the heating output = 0% (heating circuit valve closed) –HC-release = 0%.
PAE spreads over a bandwidth of 20K and works with a deceleration value –in line with “Acc. t.-F4”.
Example: PAE setting 50°C –current “Acc. t.-F4”= 40°C.
If “Acc. t.-F4” = 40°C, the HC-release is 50%. If the heating circuit only requires 40% of the heating
output due to the outside temperature, PAE has no effect because the limitation of the heating
demand only starts at 50%.
Function 2:
Note: Function 2 cannot be activated or deactivated manually.
Use: Function 2 prevents the safety thermostats (including those in floor and wall heating) from
activating.
Effect: If the “Acc. t.-F4”is > 60°C and the hot water charge pump is switched off, the heating circuit
flow temperature will increase significantly (pressure difference in heating circuit manifold).
Function: 30 seconds before the HW load pump is switched off, PAE will set to 50%. At that time, the HC-
release is 50% –the heating demand is limited to 50% for one minute –the heating circuit valves
close accordingly.