Siemens LFL1.133 Bedienungsanleitung

CC1N7451en

20.11.2017

Building Technologies Division

7451

Burner Controls LFL1...

Burner controls

For gas, oil or dual-fuel forced draft burners of medium to high capacity

For multistage or modulating burners in intermittent operation

With checked air damper control

Flame supervision

– with UV detectors QRA2 / QRA4 / QRA10

– and ionization probe

The LFL1... and this Data Sheet are intended for use by OEMs which integrate the

burner controls in their products!

Use

Control and supervision 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 ensured via a flame detector QRA2 / QRA4 / QRA10 or

ionization probe. The difference between 01 series and 02 series is the duration of the

safety time for the pilot burner of burners equipped with pilot gas valves.

For atmospheric burners of high capacity, use the LFL1.638.

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Supplementary documentation

Product type Type of documentation Documentation number

LGK16 (burner controls for continuous

operation)

Data Sheet N7785

Warning notes

To avoid injury to persons, damage to property or the environment, the following

warning notes must be observed!

Do not open, interfere with or modify the unit!

All activities (mounting, installation and service work, etc.) must be performed by

qualified staff

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 again and that it is indeed dead. If not observed, there is

a risk of electric shock hazard

Ensure protection against electric shock hazard by providing adequate protection

for the burner control’s connection terminals

Each time work has been carried out (mounting, installation, service work, etc.),

check to ensure that wiring is in an orderly state and make the safety checks as

described in «Commissioning notes»

Press the lockout reset button only manually (apply a force of no more than 10 N),

without using any tools or pointed objects

Do not press the lockout reset button on the unit or the remote lockout reset button

(input 21)for more than 10 seconds since 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 that sources of radiation such as halogen lamps, welding

equipment, special lamps, ignition sparks, as well as X-rays and gamma radiation,

can produce erroneous flame signals

Mounting notes

Ensure that the relevant national safety regulations are complied with

Connect the earthing lug inside the terminal base to burner ground using a screw

with a lockwasher

An ignited UV tube is a source of UV radiation! In case of flame supervision by

means of flame detectors, the detectors must be placed such that there is no

direct visual contact between them. If this is not observed, there is a risk of loss

of safety functions

Installation notes

Always run the high-voltage ignition cables separately while observing the greatest

possible distance to the unit and to other cables

Do not mix up live and neutral conductors

Install switches, fuses and grounding in accordance with local regulations

Do not exceed the maximum permissible current rating of the connection terminals

The insulation of internal wiring which is subjected to the mains voltage must be

able to withstand the electrical loads occurring during proper use

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Application notes

For use in applications in dual-fuel burners or oil burners, the oil supply must be

equipped with two shutoff valves connected in series.

Observe the following:

EN 298:2012, Section 7.101.3.3 Prepurge time for oil burner control systems and the

corresponding application standards.

Electrical connection of flame detectors

It is important to achieve practically disturbance- and loss-free signal transmission:

Never run the detector cable together with other cables

– Line capacitance reduces the magnitude of the flame signal

– Use a separate cable

Observe the maximum permissible detector cable lengths (refer to «Technical data»)

2 UV detectors QRA2 / QRA4 / QRA10 can be connected in parallel (observe the

warning note)

In connection with the QRA2 / QRA4 / QRA10, earthing of terminal 22 is mandatory

The ionization probe is not protected against electric shock hazard

Locate the ignition electrode and the ionization probe so that the ignition spark

cannot arc over 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 be inactive, however, that is, the detected flame must

have extinguished, e.g. by switching off the ignition valve via terminal 17

Commissioning notes

When commissioning the plant or when doing maintenance work, make the following

safety checks:

Safety check to be carried out Anticipated response

a) Burner start with flame detector darkened Lockout at the end of «TSA»

b) Burner start with flame detector exposed to

extraneous light

Lockout after no more than 40

seconds

c) Burner operation with simulated loss of

flame; for that purpose, darken the flame

detector in operation and maintain that state

(not possible with ionization)

Lockout

d) Burner startup with response from air

pressure switch interruption

Start prevention / lockout during

the prepurge time

e) Burner operation with air pressure failure

simulation

Immediate lockout

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Engineering notes

Install switches, fuses, earthing, etc., in compliance with local regulations

Decisive for the connection of the valves and other plant components is the plant

diagram provided by the burner manufacturer

34 5 6 7

22 23 24

ION

BV2

QRA...

ZBV

BV1 BV2

BV1

BV3

M2 Z

EK2

bv...

11 10 822

23 24

16 17 18 19 20 9

221 313 12 14 45

(1)/(3)

7451a14e/0604

TSA´, t3´, t4´, only:

LFL1.335,

LFL1.635 and

LFL1.638

Connect safety limit thermostat in the line (manual reset, e.g. «SB»)

Remote reset

When remote reset button «EK2» is connected between terminal 21 and

- terminal 3, only remote reset is possible

- terminal 1, both remote emergency shutdown and remote reset are possible

Required switching capacities

- of the switching devices connected between terminals 12 and 4 (refer to «Technical data»)

- of the switching devices connected between terminals 4 and 14 (refer to «Technical data»)

- depending on the loads applied to terminals 16...19 (refer to «Technical data»)

Air pressure supervision

If the air pressure is not monitored with air pressure switch «LP», terminal 4 must be connected to terminal 12, and terminal 6

to terminal 14. Terminal 13 is not used.

Control contacts of the other devices in the burner installation – 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 occurs

For use in oil applications, the oil supply must be equipped with two shutoff valves connected in

series.

Observe the following:

EN 298:2012, Section 7.101.3.3 Prepurge time for oil burner control systems and the corresponding

application standards.

Connection of fuel valves with direct spark flame burners. With 2-stage burners, «BV2» is connected in place of «BV3»

 Connection of fuel valves with interrupted pilot burners

Direct connection of a fuel valve to terminal 20 is only permitted

-in plants with a main shutoff valve on the mains side (safety shutoff valve), which is controlled by terminal 18 or 19, and

-if 2-stage valves are used, provided they fully close when the first stage, controlled by terminal 18 or 19, is switched off

For additional examples of air damper control, refer to «Connection examples». In the case of actuators with no end switch

«z» for the fully CLOSED position of the air damper, terminal 11 must be connected to terminal 10 otherwise no burner

start.

Simultaneous use of ionization and UV supervision is possible

For the permissible length and laying of detector cables, see Flame supervision

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Standards and certificates

Applied directives:

Low-voltage directive 2014/35/EC

Directive for gas-fired appliances 2009/142/EC

Electromagnetic compatibility EMC (immunity) *) 2014/30/EC

Directive for pressure devices Valid until 2018-04-21:

2009/142/EG

Gas Appliances Regulation (EU) Valid from 2018-04-21:

(EU) 2016/426

*) The compliance with EMC emission requirements must be checked after the burner control is

installed in equipment

Compliance with the regulations of the applied directives is verified by the adherence to

the following standards / regulations:

Automatic burner control systems for burners and

appliances burning gaseous or liquid fuels

DIN EN 298

Safety and 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 - Part 2-102:

Particular requirements for gas, oil and solid-fuel burning appliances having electrical

connections. The electrical connections of the LFL and the AGM comply with the

requirements of EN 60335-2-102.

EAC Conformity mark (Eurasian Conformity mark)

ISO 9001:2015

ISO 14001:2015

OHSAS 18001:2007

China RoHS

Hazardous substances table:

http://www.siemens.com/download?A6V10883536

Certified complete with plug-in base and flame detector:

Type

reference

LFL1.122 ●--- ●●●●●●

LFL1.133 ●--- ●●--- ●--- ●

LFL1.322 ●--- ●●●●●●

LFL1.333 ●--- ●●●●--- ●

LFL1.335 ●●●●●●●●

LFL1.622 ●--- ●●●●●●

LFL1.635 ●--- ●●●●●●

LFL1.638 --- --- ●--- --- ●--- ●

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Life cycle

Burner controls has a designed lifetime* of 250,000 burner startup cycles which, under

normal operating conditions in heating mode, correspond to approx. 10 years of usage

(starting from the production date given on the type field).

This lifetime is based on the endurance tests in the standard EN 298.

A summary of the conditions has been published by the European Control

Manufacturers Association (Afecor) (www.afecor.org).

The designed lifetime is based on use of the burner controls according to the

manufacturer’s Data Sheet. After reaching the designed 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 must be observed.

Mechanical design

-Plug-in design

-Exchangeable unit fuse (including spare fuse)

-Made of impact-proof and heat-resistant black plastic

-Lockout reset button with viewing window showing

– the fault signal lamp

– the lockout indicator

- coupled to the program spindle

- visible in the transparent lockout reset button

-uses easy-to-remember symbols to indicate the type of fault and the time it

occurred

LFL1...

Housing

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Type summary

The type references given below apply to the LFL without plug-in base and without

flame detector. For ordering information for plug-in bases and other accessories, see

Accessories.

Switching times are given in seconds, in the burner startup sequence, valid for 50 Hz

mains frequency. At 60 Hz, switching times are about 17 % shorter.

The type references apply to burner controls operating on AC 230 V, 50...60 Hz.

Flash steam

generators Flash steam

generators Incl.

stationary

air heaters

²) Large

atmospheric

burners

Type LFL1.122 ¹)

02 series

LFL1.133 ¹)

02 series

LFL1.322 ¹)

02 series

LFL1.333 ¹)

02 series

LFL1.335 ¹)

01 series

LFL1.622 ¹)

02 series

LFL1.635 ¹)

01 series

LFL1.638

01 series

Article

no.

BPZ:LFL1.122 BPZ:LFL1.133 BPZ:LFL1.322 BPZ:LFL1.333 BPZ:LFL1.335 BPZ:LFL1.622 BPZ:LFL1.635 BPZ:LFL1.638

Times in seconds (s)

t1 10 9 36 31 37 65 66 66

TSA 2 3 2 3 2.5 22.5 2.5

TSA´ 2 3 2 3 5 2 5 5

t3 4 3 4 6 5 4 5 5

t3´ 4 --- 4 6 2.5 4 2.5 2.5

t4 6 6 10 11.5 12.5 10 12.5 12.5

t4´ 6 --- 10 11.5 15 10 15 15

t5 4 3 10 11.5 12.5 10 12.5 12.5

t6 10 14.5 12 18 15 12 15 15

t7 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 6 811.5 10 810 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 --- --- ---

¹) Available as AC 100...110 V versions; add type suffix «-110 V» when ordering

²) Reversed polarity protection conforming to Dutch installation standard: AGM30

Legend of times

TSA Ignition safety time t8 Duration of startup sequence (without «t11» and «t12»)

TSA‘ Ignition safety time or first safety time t9 Second safety time with burners using pilot burners

(startup with burners using pilot burners) t10 Interval from start to the beginning of the air pressure

t1 Prepurge time with air damper open check, excluding running time of air damper

t3 Preignition time t11 Air damper running time to the OPEN position

t3‘ Preignition time (long) t12 Air damper running time to the low-fire position MIN

t4 Interval between voltage at terminals 18 and 19 t13 Permissible afterburn time

t4‘ Interval between start of TSA´ and release of valve at t16 Interval until OPEN command for the air damper is given

terminal 19 t20 Interval to the self-shutdown of the sequence switch

t5 Interval between power at terminals 19 and 20 after startup

t6 Postpurge time (with «M2»)

t7 Interval between start command and power at terminal 7

(start delay for «M2»)

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Accessories (to be ordered separately)

Flame detectors UV flame detectors QRA2...

See Data Sheet N7712

UV flame detector QRA4...

See Data Sheet N7711

UV flame detector QRA10...

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 Netherlands

Article no.: BPZ:AGM30

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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

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Technical data

Mains voltage

C 230 V –15 / +10 %

C 100 V –15%...AC 110 V +10%

Mains frequency 50...60 Hz ±6 %

Unit fuse (built-in) T6.3H250V to DIN EN 60 127

Primary fuse (external) max. 10 A (slow)

Weight approx. 1,000 g

Power consumption approx. AC 3.5 VA

Mounting position optional

Degree of protection IP 40, when built in, with the exception of

the connection area (terminal base)

Safety class II

Perm. input current at terminal 1 max. 5 A continuously (peaks 20 A / 20 ms)

Perm. load on control terminals 3, 6, 7,

9...11, 15...20

max. 4 A continuously (peaks 20 A / 20 ms)

Required switching capacity of switching

devices

-Between terminals 4 and 5

-Between terminals 4 and 12

-Between terminals 4 and 14

1 A, AC 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 < 95 % r.h.

Transport DIN EN 60721-3-2

Climatic conditions class 2K3

Mechanical conditions class 2M2

Temperature range -20...+60 °C

Humidity < 95 % r.h.

Operation DIN EN 60 721-3-3

Climatic conditions class 3K3

Mechanical conditions class 3M3

Temperature range -20...+60 °C

Humidity < 95 % r.h.

Installation altitude Max. 2,000 m above sea level

Warning!

Condensation, formation of ice and ingress of water are not permitted!

If not observed, there is a risk of impairment of safety functions and of

electric shock hazard.

General unit data

LFL1...

Environmental

conditions

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