Siemens LFL1.335-110V

CC1N7454en
20.11.2017
Building Technologies Division
7
454
Gas Burner Control
LFL1.148
Gas burner control
 for atmospheric gas burners in intermittent operation
 flame supervision with ionization probe
The LFL1.148 and this Data Sheet are intended for use by OEMs which integrate
the burner controls in their products!
Use
 For the supervision of 1- or 2-stage atmospheric gas burners
 For use with medium- to high-capacity burners
 For intermittent operation (at least 1 controlled shutdown in 24 hours)
 The gas burner has a connection facility for an auxiliary fan or flue gas fan (e.g. for
condensing boilers)
Flame supervision is ensured by means of an ionization probe, 1 electrode is used for the
first stage and 1 for the second stage. Changeover takes place automatically after
release of the second fuel valve.

Siemens LFL1.335-110V Specifications

General

Brand	Siemens
Model	LFL1.335-110V
Category	Indoor Fireplace
Language	English

Summary

Gas Burner Control

Use

Application and usage scenarios for the gas burner control.

Supplementary documentation

Warning notes

Important safety warnings and precautions for handling and operating the unit.

Mounting notes

Notes and safety regulations for proper mounting and earthing.

Installation notes

Electrical connection of the ionization probe

Recommendations for disturbance-free signal transmission for the ionization probe.

Commissioning notes

Safety check to be carried out

Procedure for checking burner startup with disconnected ionization cable.

Technical data

General unit data

Environmental conditions

Function

Warning!

Warning about flame signal presence at specific terminals during ignition safety time.

Control program

In the event of fault and lockout indication

Connection diagram

Connection examples

Basic diagram

Warning!

Control program

Diagram of switching mechanism

Switching times in seconds