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Building Technologies Division

CC1N7451en

20.11.2017

Connection examples and program sequence (cont’d)

Modulating direct spark flame burner

17 18

RV LK

BV1

7451a04/1295

L...

BV1

Load control by a modulating controller with galvanically
separated control contacts for the positioning directions
OPEN or CLOSE.

t11

t12

t13

min.

0...

100%

BV1

TSA

7451a07/0600

The air damper is kept closed during burner off periods.
For other connections, refer to «Connection diagrams».

2-stage interrupted pilot burner

(burner with pilot burner)

S A

BV1

BV2

L K

2 0

1 6

1 7

1 9

1 1

1 0

7451a05/0496

L...

ZBV

BV1/BV2

ZBV

Controlled and supervised by a burner control of the 01
series.

BV2

min.

0...

100%

ZBV

t12

t4´

t11

t13

t3´

TSA´

7451a08/0202

BV1

The air damper is kept closed during burner off periods.
For other connections, refer to «Connection diagrams».

Содержание LFL1.122

Страница 1: ...pervision of forced draft burners of direct spark flame or interrupted pilot construction For medium to high capacity For intermittent operation at least one controlled shutdown every 24 hours For universal use with multistage or modulating burners For use with stationary air heaters WLE For use with dual fuel burners Type tested and approved in accordance with DIN EN 298 The flame supervision is ...

Страница 2: ...e this damages the lockout relay in the unit 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 For safety reasons self test of the flame supervision circuit etc at least one controlled shutdown must take place every 24 hours In the case of flame supervision with UV detectors QRA2 QRA4 QRA10 it should be noted th...

Страница 3: ...er to the ionization probe risk of electrical overloads and that the ignition sparks cannot adversely affect the supervision of ionization Supervision with both ionization probe and UV detector QRA2 QRA4 QRA10 is possible but for safety reasons with the exception of the second safety time t9 only 1 flame detector may be active at a time At the end of the second safety time 1 of the detectors must ...

Страница 4: ...if series connected are to be connected as follows To terminal 4 or 5 contacts which must be closed from startup to controlled shutdown otherwise no start or shutdown To terminal 12 contacts which must only be closed on startup otherwise no start To terminal 14 contacts which must be closed at the beginning of the preignition time at the latest and which must stay closed until controlled shutdown ...

Страница 5: ... control devices for gas burners and gas burning appliances DIN EN 13611 Automatic electrical controls for household and similar use Part 2 5 Particular requirements for automatic electrical burner control systems DIN EN 60730 2 5 The relevant valid edition of the standards can be found in the declaration of conformity Note on DIN EN 60335 2 102 Household and similar electrical appliances Safety P...

Страница 6: ... lifetime in terms of the number of burner startup cycles or the respective time of usage the burner control is to be replaced by authorized personnel The designed lifetime is not the warranty time specified in the Terms of Delivery Disposal notes The unit contains electrical and electronic components and must not be disposed of together with domestic waste Local and currently valid legislation mu...

Страница 7: ... 2 3 2 3 2 5 2 2 5 2 5 t8 30 29 65 69 74 95 103 103 t9 2 3 2 3 5 2 5 7 5 t10 6 6 8 11 5 10 8 10 10 t11 Optional t12 Optional t13 10 14 5 12 17 15 12 15 15 t16 4 3 4 6 5 4 5 5 t20 32 60 26 22 Available as AC 100 110 V versions add type suffix 110 V when ordering Reversed polarity protection conforming to Dutch installation standard AGM30 Legend of times TSA Ignition safety time t8 Duration of start...

Страница 8: ...10 See Data Sheet N7712 Ionization probe to be supplied by thirds Connection accessories for medium capacity burner controls Plug in base AGM410490550 with Pg11 thread for cable entry glands Article no BPZ AGM410490550 See Data Sheet N7230 Plug in base AGM14 1 with M16 thread for cable entry glands Article no BPZ AGM14 1 See Data Sheet N7230 Others Reversed polarity protection AGM30 for Netherland...

Страница 9: ... 2017 Accessories to be ordered separately Actuators Actuator SQN72 See Data Sheet N7802 Actuator SQN70 SQN71 SQN74 SQN75 See Data Sheet N7804 Actuator SQN9 See Data Sheet N7806 Actuator SQM40 SQM41 See Data Sheet N7817 Actuator SQM5 See Data Sheet N7815 ...

Страница 10: ...250 V min 1 A AC 250 V depending on the load on terminals 16 19 Permissible length of the standard detector cable laid separately See Technical Data chapter Flame supervision Capacity Output on startup without fan assistance Nominal output Optional with ignition 120 kW Optional Storage DIN EN 60721 3 1 Climatic conditions class 1K3 Mechanical conditions class 1M2 Temperature range 20 60 C Humidity...

Страница 11: ...µA Possible detector current Operation Test max 700 µA max 1000 µA Perm length of detector cable Normal cable laid separately Shielded cable max 100 m max 200 m e g high frequency cable shielding connected to terminal 22 During the prepurge time with higher test voltage Self ignition and extraneous light test Multicore cable not permitted Detector current measurement Ionization probe Flame detecto...

Страница 12: ...r burner motor R Control thermostat or pressurestat RV Modulating fuel valve Z Ignition transformer ZBV Pilot gas valve A Start command by R B Operating position of burner B C Burner operation C Controlled shutdown C D Sequence switch travels to start position A postpurging D A End of control sequence t1 Prepurge time with air damper fully open t3 t3 Preignition time t4 t4 Interval BV1 BV2 or BV1 ...

Страница 13: ...e required position the burner startup sequence will be stopped 2 control outputs for the release of the second and third output stage or load control When load control is enabled the control outputs for the actuator will galvanically be separated from the unit s control section Connection facilities for remote lockout warning device remote reset remote emergency shutdown With burner controls of t...

Страница 14: ...nd switch z for the CLOSED position must feed voltage from terminal 11 to terminal 8 The contacts of control thermostat or pressurestat W and other contacts of switching devices connected between terminal 12 and LP must be closed e g control contact for the oil preheater s temperature Terminal 4 must be live The N C contact of the air pressure switch must be closed LP test Preconditions for burner...

Страница 15: ...urge time the burner control will drive the air damper to the low fire position via terminal 10 which is determined by the changeover point of auxiliary switch m During the positioning time the sequence switch stops again A short time later the motor of the sequence switch will be switched to the control section of the burner control This means that from now on positioning signals delivered to ter...

Страница 16: ...ill immediately be closed At the same time the sequence switch starts and programs t6 C D The sequence switch travels to start position A postpurging When burner off time starts control terminals 11 and 12 carry voltage to drive the air damper to the fully CLOSED position Flame signal supervision also remains active during burner off times t6 Postpurge time Fan M2 connected to terminal 7 Shortly a...

Страница 17: ...lt has been corrected 1 Lockout No flame signal on completion of safety time TSA 2 Lockout No flame signal on completion of the second safety time flame signal of main flame with interrupted pilot burners I Lockout Loss of flame signal during operation After the reset the burner control sequence switch first returns to the start position and then initiates a burner restart If lockout occurs any ot...

Страница 18: ... Z N 1 EK2 AL bv LP GP W 11 10 8 22 23 24 H L 6 7 16 17 18 19 20 9 2 21 3 13 12 14 4 5 t11 t12 t5 t1 1 2 t13 1 3 t3 TSA t4 t5 z m a t16 D A t7 t6 t3 TSA t4 t9 AS A t10 P B C 7451a02e 0604 TSA t3 t4 only LFL1 335 LFL1 635 and LFL1 638 SB Si Attention Do not press lockout reset button EK for more than 10 seconds For the connection of the safety shutoff valve refer to the plant diagram provided by th...

Страница 19: ...L1 EK1 BR 3 21 2 16 AL N H EK2 1 3 17 19 Z ZBV BV1 20 9 11 8 LK SA a z m M E A M a b b a a b b a a b b a a b fr3 NTC fr2 FR V 1 2 a b XIV IV X II b b a a 7451a12 0204 15 VIII b a 18 V VI b a III b a b a ar3 b a VII 10 M SM GP v BV1 BV2 BV2 LR SB L H W Si Attention Do not press lockout reset button EK for more than 10 seconds For the connection of the safety shutoff valve refer to the plant diagram...

Страница 20: ... II III IV V VI VII VIII X XI XII XIII XIV a b a b a b a b a b a b a b a b a b a b a b 7451d01 0604 12 16 11 17 18 7 XV a b 12 t3 t4 t3 t4 t9 TSA TSA t5 1 2 LFL TSA t3 and t4 These times only apply to burner controls of the 01 series LFL1 335 LFL1 635 and LFL1 638 They do not apply to burner controls of the 02 series since cams X and VIII of these types of LFL1 perform simultaneous switching actio...

Страница 21: ...rminals 8 and 6 must be linked as otherwise the burner control will not be able to start the burner Reversed polarity protection with AGM30 AGM30 1 23 Black Brown If the mains cables L N are switched the AGM30 simulates a flame signal extraneous light The burner initiates lockout 2 stage direct spark flame burner 16 Z N 17 18 BV1 BV2 SA LR 19 9 20 11 10 8 LK 11 7 1 6 5 2 10 8 9 4 3 N 12 13 IV I M ...

Страница 22: ... A BV1 M2 Z M P R M1 T t4 t3 t7 t1 TSA B t6 C D 7451a07 0600 The air damper is kept closed during burner off periods For other connections refer to Connection diagrams 2 stage interrupted pilot burner burner with pilot burner N S A Z BV1 BV2 LR LK 2 0 16 17 19 9 11 10 8 7451a05 0496 LR SA L ZBV M a m z v BV1 BV2 ZBV 18 Controlled and supervised by a burner control of the 01 series FS BV2 min LK 0 ...

Страница 23: ...hermostat or pressure switch Z Ignition transformer z In the actuator End switch for the air damper s CLOSED position ZBV Pilot gas valve 1 Input for increasing the operating voltage for the QRA2 QRA4 QRA10 detector test 2 Input for forced energizing of the flame relay during the functional test of the flame supervision circuit contact XIV and during safety time TSA contact IV Valid for direct spa...

Страница 24: ...long t4 Interval between voltage at terminals 18 and 19 t4 Interval between start of TSA and release of valve at terminal 19 t5 Interval between power at terminals 19 and 20 t6 Postpurge time with M2 t7 Interval between start command and power at terminal 7 start delay for M2 t8 Duration of startup sequence without t11 and t12 t9 Second safety time with burners using pilot burners t10 Interval fro...

Страница 25: ...CC1N7451en 20 11 2017 Dimensions Dimensions in mm 1 5 108 5 27 5 27 5 37 7 5 103 103 7451m04 0305 123 LFL1 2017 Siemens AG Building Technologies Division Berliner Ring 23 D 76437 Rastatt Subject to change Plug in base AGM410490550 AGM14 1 ...

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