LGB41.258A27 Siemens

SIEMENS FLAME CONTROL
Flame controllers Siemens for use with atmospherics burners.

LGB41 SERIES OBSOLETE. CONSULT US REPLACEMENT.
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Description
LGB41 SERIES IS OBSOLETE. CONSULT US REPLACEMENT.

Flame controllers Siemens LGB41 ... for monitoring of atmospheric burners. 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... (see pdf.)


Specifiations:

- Complete reference: LGB41.258A27
- Automatic forced draft burners for gaseous fuels to EN 676
- Gas burner controls to EN 298 and burner controls for oil burners to EN 230: 1991-05
- Undervoltage detection
- Air pressure supervision with function check of the air pressure switch during startup and operation
- Electrical remote reset facility
- The housing is made of impact-proof, heat-resistant and flame-retarding plastic. It is of plug-in design and engages audibly in the base.





Flame detector

Reference

Approved in:

tw/s

t1/s

TSA/s

t3n/s

t3/s

t4/s

t9/s

t10/s

t11/s

t12/s

t20/s


 

 

ca.

min.

max.

ca.

ca.

ca.

6) max.

min.

3) max.

3) max.

ca.

Atmospherics burner controllers

Ionization probe (ION) or UV detector QRA...

LGB41.255A27

EU

18

 ---

5

4

2

10

 5

---

---

---

10

LGB41.258A27 2)5)7)

CH, EU, H, SF

18

---

5

4

2

10

8

---

---

---

10

with AGQ1...A27

 

 

 

 

 

 

 

 

 

 

 

 

 














tw

 Waiting time

 

t1

Prepurge time

 

TSA

Ignition safety time

 

t3

Preignition time

2) 

For atmospheric burners up to 120kW

t3n

Postignition time

5)

Also suited for stationary direct-fired air heaters

t4

Interval fuel valve (BV1) – fuel valve (BV2) or

 

 

fuel valve BV1) – load controller (LR)

7)

Also available for AC 100...110 V;

 t9

2nd safety time

last digits ...17 in place of ...27

t10

Specified time for air pressure signal


  

t11

Programmed opening time for actuator (SA)


t12

Programmed closing time for actuator (SA)


 

t20

Interval up to self-shutdown of programming mechanism

 


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