Siemens LMU64 Series - Default Chapter; Table of Contents

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