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LME21 series
Siemens LME21 series User Manual
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23/23
Buildin
g Technolog
ies
CC1N7101en
HVAC Product
s
29.06.2006
Dimensions
Dimensions in mm
5,2
53,9
88
91
41,6
47,2
62,5
7101m02/
0605
22
9
59,1
53,9
90,5
60
220
69
6
A
B6
5,4
5,4
13
18
4
65,6
27,5
7101m01/0
804
LME...
A
ncillary unit AGQ3...
©
2006 Siemens
Building Tec
hnologies HVAC
Products GmbH
Subject to change
!
Type
reference
Dimensions
A
B
AGQ3.1A27 500
19
AGQ3.2A27 300
34
22
Table of Contents
Use
1
Features
1
Warning Notes
2
Engineering Notes
2
Mounting Notes
2
Installation Notes
3
Electrical Connection of Flame Detectors
3
Commissioning Notes
4
Standards and Certificates
4
Service Notes
4
Disposal Notes
4
Mechanical Design
5
Indication and Diagnostics
5
Versions
5
Type Summary (Other Types of Burner Controls on Request)
6
Ordering
8
Technical Data
9
General Unit Data
9
Environmental Conditions
9
Flame Supervision with Ionization Probe
10
Measuring Circuit
10
Flame Supervision with AGQ3… and UV Detector QRA...
11
Ancillary Unit AGQ3...
11
Legend
11
Flame Supervision with QRC... (Only LME23…)
12
Green LED for Operational Status Indication
12
Measuring Circuit for Detector Current
12
Preconditions for Burner Startup
13
Undervoltage
13
Control Sequence in the Event of Fault
13
Resetting the Burner Control
13
Operation
14
Operational Status Indication
14
Diagnostics of the Cause of Fault
15
Connection Diagram and Control Sequence LME11…
16
Connection Diagram and Control Sequence LME21…
17
Application Examples Only LME11… /LME21… /LME22…
17
Application Examples
18
Connection Diagram and Control Sequence LME22… /LME23…
19
Connection Diagram and Control Sequence LME44…
21
Dimensions
23
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Siemens LME21 series Specifications
General
Protection Class
IP40
Mains Frequency
50/60 Hz
Operating Temperature
-20...+60 °C
Storage Temperature
-40...+85 °C
Input Voltage
230 V AC
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