Siemens LMV36.520A1 Operator's manual

Software version
V03.40
CC1P7544en
25.09.2013 Building Technologies Division
Infrastructure & Citiies Sector
LMV36... AGM60...
LMV36.520A1 / AGM60.4A9
Basic unit with integrated fuel-air ratio control for
forced draft burners
Basic Documentation
The LMV36... / AGM60... and this Basic Documentation are intended for OEMs which integrate the units in
their products!

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Supplementary documentation
User Documentation Modbus AZL2... .....................................................................A7541
Environmental Product Declaration LMV2… / LMV3...............................................E7541
Installation and Operating Instructions PC Software ACS410................................. J7352
Data Sheet LMV3... ................................................................................................ N7544
Product Range Overview LMV2… / LMV3... .......................................................... Q7541

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Contents
1Safety notes ................................................................................................. 12
1.1 Warning notes ...............................................................................................12
1.2 Mounting notes .............................................................................................. 14
1.2.1 LMV36... ........................................................................................................ 14
1.2.2 AGM60... ....................................................................................................... 15
1.3 Installation notes............................................................................................ 16
1.3.1 Use of the AGM60.........................................................................................17
1.4 Electrical connections of LMV36... and AGM60... .........................................17
1.4.1 LMV36... ........................................................................................................ 17
1.4.2 AGM60... ....................................................................................................... 18
1.5 Electrical connection of flame detectors ........................................................18
1.6 Commissioning notes .................................................................................... 19
1.7 Notes on settings and parameter settings.....................................................21
1.8 Standards and certificates............................................................................. 22
1.9 Service notes.................................................................................................22
1.10 Life cycle........................................................................................................22
1.11 Disposal notes ............................................................................................... 22
2Makeup of structure / function description...............................................23
2.1 LMV36... ........................................................................................................ 23
2.2 For North American .......................................................................................23
2.3 General information ....................................................................................... 24
2.4 AGM60... ....................................................................................................... 25
2.4.1 Electrical connections of fuel actuators .........................................................25
2.4.2 Continuous operation .................................................................................... 26
2.4.3 Fuel changeover............................................................................................ 26
2.4.4 Extra fuel selector..........................................................................................26
3Type summary ............................................................................................. 27
3.1 LMV36... ........................................................................................................ 27
3.2 AGM60... ....................................................................................................... 27
3.3 Fuel selector..................................................................................................27
4Technical data..............................................................................................28
4.1 LMV36... basic unit ........................................................................................ 28
4.1.1 Terminal loading Inputs.................................................................................28
4.1.2 Terminal loading Outputs ..............................................................................29
4.1.3 Analog output / load output X74 pin 3 ........................................................... 29
4.1.4 Cable lengths.................................................................................................30
4.1.5 Cross-sectional areas....................................................................................30
4.1.6 Connections of actuators...............................................................................30
4.2 Signal cable AGV50... from AZL2... BCI ................................................... 31
4.3 Environmental conditions ..............................................................................31
4.4 Flame detectors.............................................................................................32
4.4.1 Ionization probe.............................................................................................32
4.4.2 UV flame detectors QRA2 / QRA4 / QRA10.................................................. 34
4.4.3 Photoresistive flame detectors QRB… .......................................................... 35
4.5 Switch unit AGM60... ..................................................................................... 36

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4.5.1 Terminal output Inputs...................................................................................37
4.5.2 Terminal output Outputs ................................................................................37
4.5.3 Cable lengths.................................................................................................38
4.5.4 Cross-sectional areas ....................................................................................38
4.5.5 Electrical connections of actuators ................................................................38
4.5.6 Environmental conditions...............................................................................38
5Dimensions...................................................................................................39
5.1 LMV36............................................................................................................39
5.2 AGM60...........................................................................................................40
6Display and diagnostics..............................................................................41
7Basic unit......................................................................................................42
7.1 Description of inputs and outputs...................................................................42
7.2 Flame detectors .............................................................................................43
7.2.1 Loss of flame..................................................................................................44
7.2.2 Extraneous light .............................................................................................44
7.2.3 No flame at the end of safety time (TSA).......................................................45
7.2.4 Flame intensity...............................................................................................45
7.2.5 Supervision of flame detector ........................................................................45
7.3 Digital inputs ..................................................................................................46
7.3.1 Safety loop X3–04 (optional pressure switch-max (Pmax)), pin 1 and 2 .......46
7.3.2 (Burner flange) X3–03, pin 1 and 2................................................................47
7.3.3 Input for external controller (ON / OFF) X5–03, pin 1....................................47
7.3.4 Air pressure switch (APS) X3–02...................................................................48
7.3.5 Gas pressure switch for gas valve proving (P LT) X9-04...............................49
7.3.6 Gas pressure switch-min (Pmin), start release gas X5–01............................50
7.3.7 Oil pressure switch-min (Pmin) X9-04 (X5–01 on AGM60...) ........................51
7.3.8 Setting the time for checking the pressure switch..........................................52
7.3.9 Gas / oil pressure switch-max (Pmax) / or POC contact, start release
oil X5–02........................................................................................................53
7.3.10 Fuel selection.................................................................................................56
7.3.11 Reset X8-04, pin 1 .........................................................................................56
7.4 Digital outputs ................................................................................................57
7.4.1 Output alarm type No-SI X3–05 pin 2 ............................................................57
7.4.2 Fan motor contactor type SI X3–05, pin 1 .....................................................57
7.4.3 Fan continuous purging X3–05, pin 3 ............................................................57
7.4.4 Output ignition (Z) type SI (IGNITION) X4–02 ...............................................58
7.4.5 Outputs fuel valves type SI (V1...V3 / PV) X8–02, X7-01, X7-02...................59
7.4.6 Output safety valve (SV) type SI X6–03 / magnetic clutch ............................61
7.4.7 Output for indication of operation X8-04 pin 2 ...............................................61
7.5 Program sequence.........................................................................................62
7.5.1 Time parameters............................................................................................62
7.5.2 Valve proving .................................................................................................64
7.5.3 Valve proving with separate pressure switch (P LT) X9-04 ...........................65
7.5.4 Valve proving via gas pressure switch-min X5-01 .........................................66
7.5.4.1. Lockout phase (phase 00) .............................................................................66
7.5.4.2. Safety phase (phase 02)................................................................................67
7.5.5 Special functions during the program sequence............................................68
7.5.5.1. Reset / manual lockout ..................................................................................68

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7.5.5.2. Alarm upon prevention of startup .................................................................. 70
7.5.5.3. Possible preventions of startup ..................................................................... 70
7.5.5.4. Repetition counter .........................................................................................71
7.5.5.5. Start without prepurging (as per EN 676)......................................................73
7.5.5.6. Gas shortage program................................................................................... 74
7.5.5.7. Program stop function ...................................................................................75
7.5.5.8. Forced intermittent operation (<24 hours) .....................................................75
7.5.5.9. Low-fire shutdown .........................................................................................75
7.5.5.10. Continuous fan .............................................................................................. 76
7.5.5.11. Test function for burner approval – loss-of-flame test (TÜV test).................. 77
7.5.5.12. Purging in the lockout position.......................................................................78
7.6 Fuel trains (application examples)................................................................. 79
7.7 Sequence diagrams....................................................................................... 88
7.7.1 Gas direct ignition «G», «G mod», «G mod pneu» ....................................... 89
7.7.2 Gas pilot ignition 1 «Gp1», «Gp1 mod», «Gp1 mod pneu»...........................90
7.7.3 Gas pilot ignition 2 «Gp2», «Gp2 mod», «Gp2 mod pneu»...........................91
7.7.4 Light oil direct ignition «Lo», «Lo mod», «Lo 2-stage», «Lo 3-stage»........... 92
7.7.5 Light oil pilot ignition «Lo Gp» .......................................................................93
7.7.6 Legend to sequence diagrams ......................................................................94
7.7.7 Legend to the sequence diagrams ................................................................94
8AGM60... .......................................................................................................97
8.1 System with AGM60... and one fuel actuator ................................................97
8.2 System with AGM60... and two fuel actuators............................................... 97
8.3 Connecting cable between AGM60... and LMV36... basic unit (AGV61.100
cable).............................................................................................................98
9Selection of operating mode ......................................................................99
9.1 Deleting curves............................................................................................ 102
10 Connection to load controllers ................................................................ 103
10.1 Controller-on contact X5-03 pin 1................................................................103
10.2 Load controller via BAC system X92...........................................................103
10.3 Manual output..............................................................................................105
10.4 Output with curve settings ...........................................................................105
10.5 External load controller via analog input X64 pin 1 / X64 pin 2 ................... 106
10.5.1 Thresholds for modulating operation ...........................................................106
10.5.2 Switching thresholds for multistage operation.............................................107
10.6 Prioritization of power sources .................................................................... 108
10.6.1 Emergency operation with several load controllers .....................................108
11 Electronic fuel-air ratio control ................................................................109
11.1 General........................................................................................................109
11.2 Behavior outside the operating positions.....................................................109
11.2.1 Traveling speed ........................................................................................... 109
11.2.2 Home position..............................................................................................109
11.2.3 Prepurging ...................................................................................................110
11.2.4 Ignition ......................................................................................................... 110
11.2.5 Postpurging ................................................................................................. 110
11.3 Modulating operation................................................................................... 111
11.3.1 Definition of curves ...................................................................................... 111

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11.3.2 Traveling speed/maximum curve slope .......................................................112
11.3.3 Entering the running position .......................................................................113
11.3.4 Operating position........................................................................................113
11.3.5 Limitation of modulation range.....................................................................114
11.3.6 Setting the minimum and maximum output..................................................115
11.4 Multistage operation.....................................................................................116
11.4.1 Definition of curves ......................................................................................116
11.4.2 Traveling speed ...........................................................................................116
11.4.3 Adjustment of output ....................................................................................117
11.4.4 Entering the operating position ....................................................................117
11.4.5 Operating position........................................................................................117
11.4.6 Limitation of modulation range.....................................................................118
11.5 End of operating position .............................................................................118
11.6 Notes on settings and parameter settings ...................................................119
12 Actuators X53 / X54 ...................................................................................120
12.1 Function principle.........................................................................................120
12.2 Definition of angles ......................................................................................120
12.3 Referencing..................................................................................................121
12.3.1 Reference run ..............................................................................................123
12.4 Direction of rotation......................................................................................125
12.5 Monitoring the actuator positions .................................................................126
12.6 Changing the error detection band for monitoring the actuator positions ....128
12.7 Forced travel................................................................................................128
12.8 Detection of line interruptions ......................................................................128
12.9 Protection against mixup of actuator............................................................129
12.9.1 Proposal for implementation ........................................................................129
13 Fan control .................................................................................................130
13.1 Function principle.........................................................................................130
13.2 Activation of VSD/PWM fan .........................................................................130
13.3 VSD control X74 pin 3..................................................................................131
13.4 PWM fan control X64 pin 3 ..........................................................................132
13.5 Safe separation of mains voltage and protective extra low-voltage.............132
13.6 Ramp time....................................................................................................132
13.7 Acquisition of speed.....................................................................................133
13.7.1 Acquisition of speed with proximity switch...................................................133
13.7.2 Acquisition of speed with Hall generator......................................................134
13.8 Speed control...............................................................................................135
13.9 Speed supervision .......................................................................................136
13.10 Setting the parameters of the VSD ..............................................................137
13.11 Standardization of speed .............................................................................138
13.12 Control of fan motor with pneumatic fuel-air ratio control ............................140
13.13 EMC of LMV36... and VSD ..........................................................................141
13.14 Description of connection terminals .............................................................142
13.14.1 VSD..............................................................................................................142
13.14.2 PWM fan ......................................................................................................142
14 Load output X74 pin 3 ...............................................................................143
14.1 Safe separation of mains voltage and extra low-voltage ............................143

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14.2 Modulating operation................................................................................... 143
14.3 2-stage operation......................................................................................... 143
14.4 3-stage operation......................................................................................... 144
15 Fuel meter input X75 pin 1 / X75 pin 2 .....................................................145
15.1 Configuration of fuel meter ..........................................................................145
15.1.1 Types of fuel meters .................................................................................... 145
15.1.2 Configuration of pulses per volume unit ......................................................145
15.1.3 Reading and resetting the meter readings .................................................. 145
15.2 Fuel throughput ...........................................................................................146
15.2.1 Configuration ...............................................................................................146
15.2.2 Reading out the fuel throughput ..................................................................146
16 Connection and internal diagram ............................................................147
17 Special feature: Burner identification (ID)...............................................148
18 Connection to superposed systems........................................................ 148
18.1 General information and building automation functions .............................. 148
18.2 Modbus........................................................................................................150
19 PC software ACS410 ................................................................................. 151
20 Error history...............................................................................................152
20.1 Error classes................................................................................................152
20.2 Makeup of error history................................................................................153
21 Lifecycle function...................................................................................... 154
22 Safety notes on use of the AZL2..............................................................154
23 Operating the AZL2... unit.........................................................................155
23.1 Description of unit/display and buttons........................................................ 155
23.2 Meaning of symbols on the display .............................................................156
23.3 Brightness of display ...................................................................................156
23.4 Special functions ......................................................................................... 157
23.4.1 Manual lockout ............................................................................................ 157
23.4.2 Manual control (manual request for output)................................................. 157
23.5 Timeout for menu operation ........................................................................158
23.6 Backup / restore ..........................................................................................159
23.6.1 Backup.........................................................................................................160
23.6.2 Restore........................................................................................................ 162
24 Operation of basic unit via the AZL2... .................................................... 164
24.1 Normal display.............................................................................................164
24.1.1 Display in standby mode .............................................................................164
24.1.2 Display during startup / shutdown ...............................................................164
24.1.2.1. Display of program phases.......................................................................... 164
24.1.2.2. Display of program phase with remaining running time until end of the
phase is reached .........................................................................................164
24.1.2.3. List of phase displays ..................................................................................165
24.1.3 Display of operating position ....................................................................... 166
24.1.4 Fault status messages, display of errors and info .......................................167
24.1.4.1. Display of errors (faults) with lockout...........................................................167
24.1.4.2. Reset ........................................................................................................... 167

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24.1.4.3. Activating info / service mode from lockout..................................................167
24.1.4.4. Error with safety shutdown...........................................................................168
24.1.4.5. General information .....................................................................................168
24.1.4.6. Prevention of startup....................................................................................168
24.1.4.7. Safety loop...................................................................................................168
25 Menu-driven operation ..............................................................................169
25.1 Assignment of levels....................................................................................169
26 Info level .....................................................................................................170
26.1 Display of info level......................................................................................172
26.2 Display of info values (examples) ................................................................172
26.2.1 Identification date.........................................................................................172
26.2.2 Identification number....................................................................................172
26.2.3 Burner identification .....................................................................................173
26.2.4 Number of startups resettable......................................................................173
26.2.5 Total number of startups ..............................................................................174
26.2.6 End of info level ...........................................................................................174
27 Service level ...............................................................................................175
27.1 Display of service level ................................................................................175
27.2 Display of service values (example) ............................................................176
27.2.1 Number of faults...........................................................................................176
27.2.2 Error history .................................................................................................176
27.2.3 Intensity of flame..........................................................................................176
27.2.4 End of service level......................................................................................176
28 Parameter level ..........................................................................................177
28.1 Entry of password ........................................................................................178
28.2 Entry of burner identification ........................................................................180
28.3 Change of heating engineer’s password......................................................181
28.4 Change of OEM’s password ........................................................................182
28.5 Use of parameter level.................................................................................182
28.6 Structure of parameter levels.......................................................................183
28.7 Parameters without index, with direct display..............................................184
28.7.1 Using the example of parameter 208: Program stop ...................................184
28.8 Parameters without index, with no direct display (with parameters having a
value range >5 digits) ..................................................................................186
28.8.1 Using the example of parameter 162: Operating hours resettable ..............186
28.9 Parameter with index, with direct display.....................................................188
28.9.1 Using the example of parameter 501: No-flame positions fuel actuator ......188
28.10 Parameters with index, with no direct display ..............................................190
28.10.1 Using the example of parameter 701: Errors...............................................190
28.11 Fuel-air ratio curves – settings and commissioning.....................................193
28.11.1 Initial commissioning....................................................................................193
28.11.2 Setting curvepoints P0 and P9 for modulating operation («G mod»,
«Gp1 mod», «Gp2 mod» and «Lo mod») ....................................................196
28.11.3 Setting curvepoints P0 and P9 for «G mod pneu», «Gp1 mod pneu»
and «Gp2 mod pneu» ..................................................................................197
28.11.4 Warm settings for modulating operation («G mod», «Gp1 mod», «Gp2
mod» and «Lo mod»)...................................................................................198

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28.11.5 Warm settings for modulating mode («G mod pneu», «Gp1 mod pneu»
and «Gp2 mod pneu»).................................................................................203
28.11.6 Cold settings for «G mod», «Gp1 mod», «Gp2 mod» and «Lo mod» .........203
28.11.7 Cold settings for «G mod pneu», «Gp1 mod pneu» and «Gp2 mod
pneu»........................................................................................................... 203
28.11.8 Interpolation of curvepoints .........................................................................204
28.11.9 Interpolating the curvepoints .......................................................................205
28.11.10 Setting of curvepoints for multistage mode («Lo 2-stage» and «Lo 3-
stage»).........................................................................................................208
28.11.11 Warm settings for «Lo 2-stage» and «Lo 3-stage» .....................................209
28.11.12 Cold settings for multistage mode («Lo 2-stage» and «Lo 3-stage»)..........213
28.11.13 Intensity of flame during curve settings .......................................................213
29 Parameter list LMV36... .............................................................................214
30 Error code list ............................................................................................231
31 Revision history of basic unit LMV36......................................................244
32 List of figures.............................................................................................246

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1 Safety notes
1.1 Warning notes
To avoid injury to persons, damage to property or the environment, the following
warning notes must be observed!
LMV36... basic unit and AGM60... switch unit are safety devices! Do not open,
interfere with or modify the units. Siemens does not assume responsibility for
damage resulting from unauthorized interference!
Inside of this documentation are warning notes which also be must observed!
After commissioning and after each service visit, check the flue gas values
across the entire load range!
The present Basic Documentation describes a wide choice of applications and functions
and shall serve as a guideline. The correct functioning of the units must be checked and
proven by function checks on a test rig or on the plant itself!
All activities (mounting, installation and service work, etc.) must be performed by
qualified personnel
Degree of protection IP40 as per DIN EN 60529 for the basic unit must be ensured
through adequate mounting of the LMV36... basic unit and the AGM60... switch unit
by the burner or boiler manufacturer
Before making any wiring changes in the connection area, completely isolate the
plant from mains supply (all-polar disconnection). Ensure that the plant cannot be
inadvertently switched on and that it is indeed dead. If not disconnected, there is a
risk of electric shock hazard
Protection against electric shock hazard on the LMV36..., the AGM60... and on all
connected electrical components must be ensured through adequate mounting. In
terms of design, stability and protection, the cover used must conform to EN 60730
After each activity (mounting, installation and service work, etc.), check to ensure
that wiring is in an orderly state and that the parameters are correctly set
Fall or shock can adversely affect the safety functions. Such units must not be put
into operation even if they do not exhibit any damage
When programming the air-fuel ratio control curves, the commissioning engineer
must constantly watch the quality of the combustion process (e.g. by means of a
flue gas analyzer) and, in the event of poor combustion values or dangerous
conditions, take appropriate actions, e.g. by shutting down the system manually
When starting up a dual-fuel burner, both fuel trains must be put into full
operation, thus making certain that fuel changeover by the user cannot lead to
critical conditions
The inputs and outputs of the AGM60... may only be used for the application
covered by this document and only in connection with the sensors and
actuators specified for the application, the reason being that only these have
been checked and released in terms of error effects. If you want to use the
sensors and actuators on other applications, please contact Siemens
The following plug-on terminations carry FELV (functional extra low-voltage) (also
refer to chapter Electrical connection of LMV36... and AGM60...), thus ensuring
adequate separation from mains voltage:
- BCI (X56) for the connecting cable of AZL2... or PC software ACS410
- COM (X92) for accessories, such as the OCI410...
- Plug-on terminations for actuators (X54) or for the AGV61.100 connecting cable
when using 2 fuel actuators via AGM60...
These plug-on terminations may be disconnected or exchanged only when the plant
is dead (all-polar disconnection)

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The plugs of the connecting cables for the LMV36… or other accessories, such as
the OCI410... interface (plugged into the BCI), may be removed or exchanged only
when the plant is shut down (all-polar disconnection), since the BCI does not
provide safe separation from mains voltage.
The connection for the SQM3… or SQN1... actuators does not provide safe
separation from mains voltage. Prior to connecting or changing one of these
actuators, the plant must be shut down (all-polar disconnection)
When setting up a system with the AGM60..., check to ensure that the sensors and
actuators are correctly assigned to fuels
To ensure safety and reliability of the LMV36... and the AGM60..., the following points
must also be observed:
-Condensation and ingress of humidity must be avoided. Should such conditions
occur, make sure that the unit is completed dry before switching on again!
-Static charges must be avoided since they can damage the unit’s electronic
components when touched.
Recommendation: Use ESD equipment
-If the unit fuse was blown due to overload or a short-circuit at the connection
terminals, the LMV36... must be replaced since the switching contacts could have
been damaged

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1.2 Mounting notes
Ensure that the relevant national safety regulations and regulations relating to
standards are complied with
In geographical areas where DIN regulations apply, the requirements of VDE must
be satisfied, especially DIN / VDE 0100, 0550 and DIN / VDE 0722
1.2.1 LMV36...
The LMV36... basic unit must be secured with fixing screws M4 (UNC32) or M5
(UNC24), observing a maximum tightening torque of 1.8 Nm and using all 4 fixing
points. Additional mounting surfaces on the housing are provided to improve
mechanical stability. These must completely rest on the mounting surface to which
the unit is secured. The flatness of that mounting surface must be within a tolerance
band of 0.3 mm
Touch protection of the external fuel selector must be ensured by fitting the selector
as a separate component (e.g. in a control panel door or under the burner hood)
122
(103.5)
6.5
103.5 10
217
M5 x 4
0,3
Bild 365./0409
Additional mounting
surfaces
Outer contour of housing
Figure 1: LMV36... note on mounting
Notes on mounting

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1.2.2 AGM60...
0,3
85
110
101 69
M4 (4x)
6,5
97
10(2x)
Bild 258e/0309
Figure 2: AGM60... note for mounting
Screwed On a DIN rail
A = mounting B = removal
Mounting on DIN rails requires a
mounting clip!
If the unit is screwed on, following must be observed:
The AGM60… switch unit must be secured with fixing screws M4 (UNC32),
observing a maximum tightening torque of 1.8 Nm and using all 4 fixing points
The additional mounting surfaces on the housing must be used; they are provided
to improve mechanical stability and must fully rest on the mounting surface. The
flatness of the mounting surface must be within a tolerance band of 0.3 mm
Notes for mounting
Mounting method

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1.3 Installation notes
Always run the high-voltage ignition cables separate from the unit and other cables
while observing the greatest possible distances
Ensure that the electrical wiring inside the boiler is in compliance with national and
local safety regulations
Mains power must always be supplied via Land N. This means that no potential
differential must exist between the neutral conductor Nand protective earth PE
Phase and neutral conductor must not be interchanged (dangerous malfunctions,
loss of protection against electric shock hazard, etc.)
Make certain that strain relief of the connected cables is in compliance with the
relevant standards (e.g. as per DIN EN 60730 and DIN EN 60335)
Ensure that spliced wires cannot get into contact with neighboring terminals. Use
adequate ferrules
Run the high-voltage ignition cable completely separate from all other cables
The burner manufacturer must protect unused terminals of LMV36... and AGM60...
by fitting dummy plugs (exception: X64 (reserved) and X74)
When making the wiring, ensure that the AC 120 V sections is strictly separated
from other voltage sections, thus ensuring protection against electric shock hazard
(for more detailed information, refer to chapter Electrical connection of LMV36... and
AGM60...)
The plugs of connecting line for the LMV36…, must be connected or disconnected
only when the plant is dead (all-polar disconnection), since the BCI does not ensure
safe separation from mains voltage
AGV50... signal cable from LMV36... and AZL2...
Since the BCI carries FELV (refer to chapter Electrical connection of LMV36... and
AGM60...), use of the AGV50… signal cable for connection from the LMV36... to the
AZL2... is mandatory, or observe the respective specification. The cable is specified
for use under the burner hood. When using other types of cable that do not conform
to the specification, protection against electric shock hazard is not necessarily
ensured
Do not lay signal cable AGV50... from the LMV36... to the AZL2... together with
other cables
Service operation with a longer signal cable from the LMV36...:
If a longer signal cable is required for service work for example (short-time usage,
<24 hours), note that the above application under the burner hood no longer applies
and, for this reason, the signal cable can be subjected to increased mechanical
stress. In that case, use a reinforced signal cable
Both the AGV50... signal cable and the AZL2... must be shipped and stored so that
no damage due to dust and water can occur when the products are used in the field
To ensure protection against electric shock hazard, make certain that – prior to
switching on power – the AGV50... signal cable is correctly connected to the AZL2...
The AZL2... must be used in a dry and clean environment
The connection between the actuators and the regulating units for fuel and
combustion air or any other regulating units must be form-fitted

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1.3.1 Use of the AGM60...
To ensure correct fuel changeover, output Safety valve (SV) / magnetic clutch
(X6-03 pin 3) must be connected to the respective input of the AGM60... (X32-
01 pin 5), the reason being the following:
Depending on the signal level at this output, the AGM60... sends the point in
time for fuel changeover to the LMV36...
Caution!
The AGM60... must always be powered via the LMV36... basic unit and never
directly by mains voltage
The live conductor for fuel changeover (refer to chapter Fuel changeover) must
always be picked up at terminal X31-01 pin 4 of the AGM60…
Connecting cable between LMV36... and AGM60... (also refer to chapter Makeup of
system): Use of this connecting cable is mandatory (available as an accessory item,
refer to chapter Type summary)
1.4 Electrical connections of LMV36... and
AGM60...
For LMV36... and AGM60..., the following low-voltage categories are in use:
SELV (safety extra low-voltage) and PELV (protective extra low-voltage) ensure
protection against electric shock hazard
FELV (functional extra low-voltage)
Functional extra low-voltage without safe separation provides no protection, so that
risk would not be excluded in the event of failure
1.4.1 LMV36...
Mains voltage
SELV PELV FELV
Mains voltage
Figure 3: LMV36... electrical connection

Note
The safety class of the connected components determines whether SELV or PELV
applies. In the case of PELV, the respective component is earthed and connected to
protective earth.

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1.4.2 AGM60...
Mains voltage FELV
Mains voltage
Figure 4: AGM60... electrical connection
When installing the unit, make certain that non-insulated parts in the mounting frame do
not get into contact with the connection terminals. Also observe the lateral connecting
area:
Bild 263e/0309
Lateral connecting area
Figure 5: AGM60... lateral connecting area
1.5 Electrical connection of flame detectors
It is important to achieve practically disturbance- and loss-free signal transmission:
Never run the detector cables together with other cables
– Line capacitance reduces the magnitude of the flame signal
– Use a separate cable
Observe the permissible detector cable lengths
The mains-powered ionization probe is not protected against electric shock hazard.
It must be protected against accidental contact
Earth the burner in compliance with the relevant regulations; earthing the boiler
alone does not suffice
Locate the ignition electrode and the ionization probe such that the ignition spark
cannot arc over to the ionization probe (risk of electrical overloads)

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1.6 Commissioning notes
When commissioning the unit, check all safety functions
There is no absolute protection against incorrect use of the RASTx connectors. For
this reason, prior to commissioning the plant, check the correct assignment of all
connectors
Electromagnetic emissions must be checked on an application-specific basis
After the plant has been installed and commissioned, the person responsible for the
plant / heating engineer must document the parameterized values and settings (e.g.
curve characteristics) used for fuel-air ratio control.
These data can be printed out with the help of the ACS410 PC software, for example, or
must be written down.
This document must be kept in a safe place and checked by the expert.
Caution!
On the OEM level of the LMV36..., parameter settings other than those specified
in the application standards can be made. For this reason, check whether the
parameter settings made are in compliance with the relevant application
standards (e.g. EN 676, EN 267, etc.), or whether the respective plant demands
special approval!
The selected setting values of fuel and combustion air must be assigned such that –
while giving consideration to the combustion chamber / fuel pressure, temperature and
combustion air pressure, as well as wear of actuators and controlling elements, etc. –
correct operation with sufficient amounts of excess air is ensured across the burner’s full
output range for an extensive period of time (until the next regular inspection is due; also
refer to chapter Monitoring the positions). This must be proven by the burner / boiler
manufacturer by measuring the characteristic combustion process values. If the
standardization process is repeated, the fuel-air ratio control system must be rechecked.
Prior to commissioning the system, the following points must be checked:
Parameterization of operating mode (e.g. «G mod», «Gp1 mod», «Lo mod», etc.)
must accord with the type of burner used (refer to chapter Selection of operating
mode)
Correct assignment of the valves to the valve outputs of the LMV36...
Correct setting of the time parameters, especially the safety and prepurge times
Correct functioning of the flame detector in the event of loss of flame during
operation (including the response time), with extraneous light, during the prepurge
time and, when there is no establishment of flame, at the end of the safety time
Activation of the valve proving function and determination of the correct leakage
rate, if required by the application (refer to chapter Valve proving)
Fuel-air ratio
control system
Basic unit section

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The functions of the following available or required input status signals must be
checked:
Air pressure
Minimum gas pressure / maximum gas pressure or POC
Gas pressure valve proving
Minimum oil pressure and maximum oil pressure
Safety loop (e.g. safety limiter)
Duties of the expert when making the approval tests
Action Check / response
a) Burner startup with flame detector
darkened
Lockout at the end of safety time 1 (TSA1)
b) Burner startup with flame detector exposed to
extraneous light, e.g. to incandescent light with
detectors for visible radiation, quartz-halogen bulb
or cigarette lighter flame with detectors for UV
radiation
Lockout at prepurge time (t1)
c) Simulation of loss of flame during operation. For
that, darken the flame detector in the operating
position and maintain that state
Lockout or restart, depending on the basic unit’s
configuration
d) Check the plant’s response time with loss of flame
during operation. For that purpose, manually
disconnect the fuel valves from power and check
the time from this moment the basic unit requires to
turn off power to the valve
Turning off power to the valves by the basic unit within
the period of time permitted for the respective type of
plant
e) Check the safe operation of the burner while giving
consideration to system tolerances
System tolerances are the result of a number of factors,
such as:
-Tolerances of actuators plus mechanical linkage to
the controlling elements
-Environmental conditions
(temperature, air conditions)
-Type of fuel (calorific value / pressure)
-Type of supply air path and flue ways
Example of procedure for checking the burner’s
response to actuator tolerances:
-Approach a output point in programming mode (e.g.
low-fire or high-fire)
-Change the actuator’s position against the optimum
fuel-air ratio setting as can be expected in the case
of tolerances
-Check the flue gas values with a flue gas analyzer
Recommendation:
Make this readjustment against the optimum fuel-air
ratio setting for one actuator at a time!
Further checks may be required, depending on the field of use and the relevant
standards.