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Siemens LGB21.130A17, Datasheet

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Siemens LGB21.130A17 Datasheet Download Page 22

22/22 

Building Technologies 

 

CC1N7435en 

HVAC Products 

 

11.01.2007 

Dimensions 

Dimensions in mm 
 

5,5

62

,5

88

91

41,5

47

62

,5

7435

m

0

6/

1106

22

9

 

 
 
 
 

90,5

60

220

69

6

A

B 6

5,4

5,4

13

18

4

65

,6

27

,5

7435m01/0301

 

 

LGB... 

Auxiliary unit 
AGQ1...A27 

Type Dimension 

   

reference 

A B 

AGQ1.1A27 500 19 

AGQ1.2A27 300 34 

©

2007 Siemens Building Technologies HVAC Products GmbH 

Subject to change! 

 

Plug-in base 

AGK11... / AGK13...

 

Summary of Contents for LGB21.130A17

Page 1: ...ntermittent operation Depending on the type of burner control used the flame is supervised either by an ionization probe a blue flame detector QRC1 for forced draft gas oil burners or a UV detector QRA with auxiliary unit AGQ1 A27 In connection with the respective adapters the LGB burner controls replace their predecessor types LFI7 and LFM1 also refer to Replacement types under Or dering Automati...

Page 2: ...ational safety regulations are complied with Installation notes Always run the ignition cables separate from the unit and other cables while ob serving the greatest possible distance Do not mix up live and neutral conductors Install switches fuses earthing etc in compliance with local regulations Ensure that the maximum permissible current ratings will not be exceeded refer to Technical data Do no...

Page 3: ...sulation of the probe s cable but also of the ionization probe itself ceramic holder Earth the burner in compliance with the relevant regulations earthing the boiler alone does not suffice The connection diagrams show the burner controls with earthed neutral conductor In networks with nonearthed neutral conductor and ionization current supervision terminal 2 must be connected to the earth conducto...

Page 4: ... stage operation LGB21 130A17 x x LGB21 130A27 x x x x LGB21 230A27 x x x LGB21 330A27 x x x LGB21 350A17 x x LGB21 350A27 x x x x LGB21 550A27 x x x x LGB22 130A27 x x x x LGB22 230B27 x x x LGB22 330A17 x x LGB22 330A27 x x x x LGB22 330A270 x x x LGB32 130A27 x x x x LGB32 230A17 x x LGB32 230A27 x x x LGB32 330A17 x x x LGB32 330A27 x x x LGB32 350A17 x x x LGB32 350A27 x x x x LGB41 255A27 x ...

Page 5: ...controls for 2 stage burners with control of actuator Ionization probe ION LGB22 130A27 4 CH EU N S 9 7 3 2 4 3 8 4 12 12 21 or UV detector QRA LGB22 230B27 5 CH EU N S SF 9 20 3 2 4 3 8 4 16 5 16 5 2 with AGQ1 A27 LGB22 330A27 5 7 AUS CH EU H N S SF 9 30 3 2 4 3 8 4 12 11 2 LGB22 330A270 5 8 EU 9 30 3 2 4 3 8 4 12 11 2 Blue flame detector LGB32 130A27 4 1 CH EU 9 7 3 2 4 3 8 4 12 12 21 QRC1 LGB32...

Page 6: ...sion of ionization currents in networks with nonearthed neutral conductor PTC resistor AC 230 V AGK25 To burden terminal 3 mandatory when using burners with no fan motor connected to terminal 3 Auxiliary unit for UV supervision Cable length 500 mm AGQ1 1A27 Cable length 300 mm AGQ1 2A27 Can be fitted under the plug in base refer to Dimensions Pedestal empty housing AGK21 For increasing the height ...

Page 7: ...rately max 3 m at 100 pF m line capacitance 20 m Power consumption 3 VA Primary fuse max 10 A slow Degree of protection IP 40 when built in with the exception of the connection area terminal base Mounting position optional Weight approx 230 g Storage DIN EN 60 721 3 1 Climatic conditions class 1K3 Mechanical conditions class 1M2 Temperature range 20 60 C Humidity 95 r h Transport DIN EN 60 721 3 2...

Page 8: ...obe and ground cannot simulate a flame signal since in that case AC current would flow Basically the flame supervision circuit is insensitive to adverse effects of the ignition spark However should the disturbing effects of the ignition spark on the ionization current exceed a certain level the electrical connections on the primary side of the ignition transformer must be changed and or the locati...

Page 9: ...220 V 15 AC 240 V 10 Mains frequency 50 60 Hz 6 Power consumption 4 5 VA Degree of protection IP 40 Perm ambient temperature In operation During transport and storage 20 60 C 40 70 C Perm length of cable from QRA to AGQ1 A27 use separate cable max 20 m Mounting position optional Perm length of connecting cable from AGQ1 A27 to LGB max 20 m Weight of AGQ1 A27 approx 140 g At mains voltage UN AC 220...

Page 10: ...aging UV detec tors and to detect UV light 1 A Operation with a permanent line UV test at a higher supply voltage across the UV cell on startup and after con trolled shutdown 2 B Operation with a controlled line UV test at a higher supply voltage only on startup that is during the interval between controlled startup and air pressure signal No voltage at the UV cell after controlled shutdown No ful...

Page 11: ...witching on This command is triggered by control thermostat pressurestat R Terminal 12 receives voltage and the programming mechanism starts running On completion of waiting time tw with the LGB21 or after air damper SA has reached the nominal load position on completion of t11 with the LGB22 LGB32 fan motor M will be started TSA Ignition safety time On completion of TSA a flame signal must be pre...

Page 12: ...th main flame supervision equipped with a pilot gas valve ZV1 t10 Specified time for air pressure signal On completion of this period of time the set air pressure must have built up or else lockout will occur t11 Programmed opening time for actuator SA Only with LGB22 LGB32 The air damper opens until the nominal load position is reached Only then will fan motor M be switched on t12 Programmed clos...

Page 13: ...henever lockout occurs the burner control can immediately be reset Lockout and control sequence indication The position of the programming mechanism can be seen through the viewing window on the front of the unit In the event of fault the programming mechanism stops and thus the lockout indicator also The symbol in the viewing window indicates both the position in the control sequence and the type...

Page 14: ...tion about actuators SA SQN3 Refer to Data Sheet N7808 SQN7 Refer to Data Sheet N7804 SQN9 Refer to Data Sheet N7806 12 2 10 8 3 6 11 7 9 4 5 1 GP SB W R HS 0 I L N AL EK2 M LP bv1 bv2 Dbr1 Z BV2 ION 7435a09 0704 BV1 Si LGB2 LR SA BV1 RV II KL Zu III LKP NL t1 IV III IV I t IV 12 2 10 8 3 6 11 9 7 4 5 1 HS 0 I N L AL EK2 M LP GP R W Z BV1 LR ION BV2 N 1 2 6 7 5 4 3 b1 b2 B a b III a3 a b II MS I a...

Page 15: ... I KL Zu NL LKP t I III III IV IV II TSA t4 t1 9 Si SB SQN7 244 2 stage control QRA with auxiliary unit AGQ1 with LGB21 diagram 7435a06 12 2 11 1 7435a06 0704 GP SB R W L L N QRA br bl rt sw AGQ1 sw bl Burner without fan and without LP 2 3 11 6 AGK25 7435a04 0398 Burner with fan control via auxiliary contactor HS with LP 12 2 3 11 6 GP SB R W L N M HS AGK25 LP 7435a16 1299 Legend bl Blue wire br B...

Page 16: ...SQN3 Refer to Data Sheet N7808 SQN7 Refer to Data Sheet N7804 SQN9 Refer to Data Sheet N7806 LR SA LGB22 32 BV1 2 KL Zu III LKP NL t1 III t I II 12 2 10 8 3 6 11 9 5 7 4 GP SB W R HS 0 I L N AL EK2 M LP LR Z BV1 7435a10 0704 7 2 10 6 8 3 1 SA Si ION 1 LGB22 LGB32 1 sw QRC1 12 br bl 2 Nur LGB32 Nur LGB22 12 2 10 8 3 6 11 9 7 4 5 1 HS 0 I N L EK2 M LP GP R W Z BV1 LR ION AL LGB22 N 1 8 2 7 5 6 3 4 9...

Page 17: ...B32 2 3 11 6 AGK25 7435a04 0398 QRA with auxiliary unit AGQ1 with LGB22 diagram 7435a06 12 2 11 1 7435a06 0704 GP SB R W L L N QRA br bl rt sw AGQ1 sw bl Burner with fan control via auxiliary contactor HS with LP LGB22 LGB32 12 2 3 11 6 GP SB R W L N M HS AGK25 LP 7435a16 1299 Legend bl Blue wire br Brown wire rt Red wire sw Black wire TSA Ignition safety time t1 Prepurge time t4 Interval BV1 BV2 ...

Page 18: ...tage bv Auxiliary switch in the fuel valves for control the closed position by load controller LR Dbr1 Wire link D Shutdown by R Dbr2 Wire link required when contacts bv or zv1 is missing EK2 Remote reset button tw Waiting time ION Ionization probe TSA Ignition safety time FS Flame signal t3 Preignition time GP Gas pressure switch t4 Interval BV1 BV2 HR Main ramp t9 2 safety time HS Main switch M ...

Page 19: ...7435i01 0504 ION Dbr1 Z BV2 BV1 EK2 AL EK1 2 10 8 4 5 7 9 1 11 6 3 1 12 br a b AS I a b ar a b a b IV FR AR fr a b II a b a b VIII V VI IX VII BR a b a b b a MS L1 a A Start position switching on B Operating position of burner C Operating position of programming mechanism or start position I IX Cam switches tw Waiting time TSA Ignition safety time T Total running time of programming mechanism t1 P...

Page 20: ...b FR AR III a b IV a b fr a b II a b VIII a b V a b VI a b IX a b VII a b L1 BR MS ION 1 Nur LGB22 1 sw QRC1 12 br bl 2 Nur LGB32 Z Ignition transformer A Start position switching on B Operating position of burner C Operating position of programming mechanism or start position I IX Cam switches tw Waiting time TSA Ignition safety time T Total running time of programming mechanism t1 Prepurge time ...

Page 21: ...BV1 in the case of pilot burners with main flame supervision tw Waiting time TSA Ignition safety time T Total running time of programming mechanism t3 Preignition time t4 Interval BV1 BV2 t9 Second safety time t20 Interval up to self shutdown of the programming mechanism A Start position switching on B Operating position of burner C Operating position of programming mechanism or start position I I...

Page 22: ... 5 62 5 88 91 41 5 47 62 5 7435m06 1106 22 9 90 5 60 220 69 6 A B 6 5 4 5 4 13 18 4 65 6 27 5 7435m01 0301 LGB Auxiliary unit AGQ1 A27 Type Dimension reference A B AGQ1 1A27 500 19 AGQ1 2A27 300 34 2007 Siemens Building Technologies HVAC Products GmbH Subject to change Plug in base AGK11 AGK13 ...

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