Table Of Contents - Siemens LMU54 Series Basic Documentation

Siemens Building Technologies
HVAC Products
Contents
1 Overview ..........................................................................................10
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Brief description ..........................................................................10
1.1 System concept ..................................................................................10
1.2 Features ............................................................................................11
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Safety functions ..........................................................................11
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Supervision / protective functions for the plant .................................11
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Auxiliary modules (clip-in).............................................................11
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DHW .........................................................................................12
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Heating circuit .............................................................................12
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System application ......................................................................12
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Operation / service ......................................................................12
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Parameterization.........................................................................13
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Mains transformer........................................................................13
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Other features.............................................................................13
1.3 Product range.....................................................................................13
1.4 Field of use........................................................................................13
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Target market .............................................................................13
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Heating plants.............................................................................13
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Heat generating equipment...........................................................13
1.5 Notes on product liability ......................................................................14
1.6 Notes on environmental protection ........................................................14
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Disposal notes ............................................................................14
2 Product range overview ....................................................................15
3 Functions..........................................................................................17
3.1 Burner control ....................................................................................17
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Program selection .......................................................................17
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EEPROM ...................................................................................17
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Forced intermittent operation ........................................................17
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Burner control program ................................................................17
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Sequence diagram ......................................................................18
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Capacity range < 70 kW............................................................18
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Capacity range 70...120 kW.......................................................18
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Capacity range > 120 kW ..........................................................19
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Description of sequence diagrams..............................................19
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Sequence times .......................................................................20
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Standby ..................................................................................20
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Startup ...................................................................................20
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Shutdown................................................................................22
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Home run................................................................................22
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Special cases (deviations).........................................................22
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LMU... plausibility checks of the speed parameters .......................24
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Parameterization of speed feedback signal..................................24
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Fan parameters accessible via QAA ...........................................25
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The different capacity ranges .....................................................26
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Setting the fan parameters during startup and shutdown................27
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Speed readjustment .................................................................28
3.2 Selection of the compensation variants ..................................................30
Basic Documentation LMU54... / LMU64...
Contents
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CC1P7494en
07.11.2002