LGB22 Siemens

SIEMENS FLAME CONTROL

Flame controllers Siemens for use with gas or gas/oil burners.

OBSOLETE MODEL. CHECK US FOR REPLACEMENT LME22.

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** LGB22 can be replaced by LME22 (electronic model, more reliable and cheaper). Check with us the correct LME replacement.

Flame controllers Siemens LGB22 ... for monitoring of 1 or 2-stage gas burners or gas and oil small to medium capacity (typically up to 350 kW) with or without fan and with intermittent 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... (see pdf.)

Specifiations:

- Complete reference: LGB22.130A27, LGB22.230B27, LGB22.330A17, LGB22.330A27

- 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.

Model selection guide and technical data sheet (pdf)

Flame detector	Reference	Approved in:	tw/s ca	t1/s min.		TSA/s max.	t3n/s ca.		t3/s ca.	t4/s		t9/s 6)max.			t10/s mín.	t11/s 3) max.			t12/s 3) max.		t20/s ca.
Burner controls for 2-stage burners without control of actuator
Ionization probe (ION) or UV detector QRA... with AGQ1...A27	LGB22.130A27 4)	CH, EU, N, S	9	7	3			2.4	3		8		---	4			12	12		21
	LGB22.230B27 5)	CH, EU, N, S, SF	9	20	3			2.4	3		8		---	4			16.5	16.5		2
	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

tw	Waiting time
t1	Prepurge time
TSA	Ignition safety time
t3	Preignition time	4)	Also suited for flash steam generators
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	8)	Without internal microfuse; must to be used in connection with
t11	Programmed opening time for actuator (SA)		external microfuse 6.3 A (slow)!
t12	Programmed closing time for actuator (SA)
t20	Interval up to self-shutdown of programming mechanism