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Building Technologies Basic Documentation LMV37.4... CC1P7546en
HVAC Products Contents 01.12.2009
Contents
1 Safety notes ...................................................................................................... 12
1.1 Warning notes .................................................................................................... 12
1.2 Mounting notes................................................................................................... 13
− Note on mounting.................................................................................. 13
1.3 Installation notes ................................................................................................ 14
1.4 Electrical connection of the LMV37.4............................................................... 15
1.5 Electrical connection of flame detectors........................................................... 16
1.6 Commissioning notes ........................................................................................ 16
− Air-fuel ratio control system................................................................. 16
− Basic unit section .................................................................................. 16
1.7 Setting and parameter setting notes................................................................. 18
1.8 Standards and certificates................................................................................. 19
1.9 Service notes...................................................................................................... 19
1.10 Life cycle............................................................................................................. 19
1.11 Disposal notes.................................................................................................... 19
2 System make-up / function description....................................................... 20
2.1 For Europe.......................................................................................................... 20
2.2 For North America.............................................................................................. 20
2.3 General ............................................................................................................... 21
3 Type summary.................................................................................................. 21
4 Technical Data.................................................................................................. 22
4.1 Basic unit LMV37.4............................................................................................ 22
4.1.1 Terminal loading «Inputs» ................................................................................. 22
4.1.2 Terminal loading «Outputs» .............................................................................. 23
4.1.3 Analog output / power output X74.3 ................................................................. 23
4.1.4 Cable lengths...................................................................................................... 24
4.1.5 Cross-sectional areas ........................................................................................ 24
4.2 Signal cable AGV50... from AZL2... → BCI ..................................................... 24
4.3 Environmental conditions .................................................................................. 25
4.4 Flame detectors.................................................................................................. 26
4.4.1 Ionization probe.................................................................................................. 26
4.4.2 UV-Flame detectors QRA2… / QRA4.U / QRA10…....................................... 27
4.4.3 Photoresistive detectors QRB…....................................................................... 28
4.4.4 Blue-flame detectors QRC…............................................................................. 28
5 Dimensions ....................................................................................................... 29
5.1 LMV37.4... .......................................................................................................... 29
6 Basic unit........................................................................................................... 30
6.1 Description of inputs and outputs ..................................................................... 30
− Flame signal input and flame detector X10–05 and X10–06................. 30
6.2 Flame detectors.................................................................................................. 31
6.2.1 Loss of flame ...................................................................................................... 32
6.2.2 Extraneous light.................................................................................................. 32
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