5/22
Building Technologies
CC1N7435en
HVAC Products
11.01.2007
Mechanical design
The housing is made of impact-proof, heat-resistant and flame-retarding plastic.
It is of plug-in design (measuring 91 x 62 x 63 mm, including the base) and engages
audibly in the base.
The housing accommodates the
-
programming mechanism with the synchronous motor
-
electronic flame signal amplifier (ionization) with the flame relay and the other
switching devices
-
lockout reset button with its integrated fault indication lamp
Type summary
The type references given below apply to LGB... burner controls without plug-in base
and without flame detector. For ordering information on plug-in bases and other acces-
sories, refer to «Mechanical design», «Ordering», «Flame supervision ...» and «Tech-
nical data».
Flame detector
Type 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
6) 3) 3)
ca.
min.
max.
ca.
ca.
ca.
max.
min.
max.
max.
ca.
Burner controls for 2-stage burners without control of actuator
Ionization probe (ION)
LGB21.130A27
4)7)
CH, EU, S, SF
8
7
3
2.4
2
8
---
5
---
---
6
LGB21.230A27
5)
CH, EU, S, SF
8
15
3
2.4
2
8
---
5
---
---
38
or UV detector QRA...
with AGQ1...A27
LGB21.330A27
5)
CH, EU, H, S, SF
8
30
3
2.4
2
8
---
5
---
---
23
LGB21.350A27
5)7)
CH, EU, H, S, SF
8
30
5
4
2
10
---
5
---
---
21
LGB21.550A27
5)
AUS, CH, EU
8
50
5
4
2
10
---
5
---
---
2
Burner controls for 2-stage burners with control of actuator
Ionization probe (ION)
LGB22.130A27
4)
CH, EU, N, S
9
7
3
2.4
3
8
---
4
12
12
21
or UV detector QRA...
LGB22.230B27
5)
CH, EU, N, S, SF
9
20
3
2.4
3
8
---
4
16.5
16.5
2
with AGQ1...A27
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
Blue-flame detector
LGB32.130A27
4)1)
CH,
EU
9 7 3 2.4 3 8 --- 4 12 12 21
QRC1...
LGB32.230A27
5)1)
CH, EU
9
20
3
2.4
3
8
---
4
12
12
2
LGB32.330A27
5)
CH, EU
9
30
3
2.4
3
8
---
4
12
11
2
LGB32.350A27
5)
CH,
EU
9 30 5 4.4 1 10 --- 4 12 9 2
Burner controls for atmospheric burners
Ionization probe (ION)
LGB41.255A27
EU 18
---
5
4
2
10
5
---
---
---
10
or UV detector QRA...
with AGQ1...A27
LGB41.258A27
2)5)7)
CH, EU, H, SF
18
---
5
4
2
10
8
---
---
---
10
Legend
tw Waiting
time
1) On
request
t1
Prepurge time
2)
For atmospheric burners up to 120 kW
TSA
Ignition safety time
3)
Maximum running time available for actuator
t3
Preignition time
4)
Also suited for flash steam generators
t3n
Postignition time
5)
Also suited for stationary direct-fired air heaters
t4
Interval «BV1-BV2» or «BV1-LR»
6)
«t9» + reaction time of flame relay
t9
Second safety time
7)
Also available for AC 100...110 V; in that case, the last 2
t10
Specified time for air pressure signal
digits read ...17 in place of ...27
t11
Programmed opening time for actuator «SA»
8)
Without internal microfuse; must only be used in connection
t12
Programmed closing time for actuator «SA»
with external microfuse 6.3 A (slow)!
t20
Interval up to self-shutdown of programming mechanism
