Siemens LMS14

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Building Technologies Division User Manual LMS14… CC1U7471en
Contents 28.01.2015
6.12.9 2-position controller ..................................................................................... 264
6.12.10 Protective boiler startup ............................................................................... 265
6.12.11 Keeping the boiler hot .................................................................................. 267
6.12.12 Alternative setting of output ......................................................................... 267
6.13 Cascaded systems ...................................................................................... 268
6.13.1 Addressing devices ..................................................................................... 268
6.13.2 Cascade master .......................................................................................... 269
6.13.3 Operating mode ........................................................................................... 270
6.13.4 Control ......................................................................................................... 271
6.13.5 Boiler sequence ........................................................................................... 272
6.13.6 Minimum limitation of return temperature .................................................... 274
6.13.7 Supervision of temperature differential ........................................................ 275
6.14 Extra heat source ........................................................................................ 275
6.15 Solar ............................................................................................................ 276
6.15.1 General ........................................................................................................ 276
6.15.2 Sensors ....................................................................................................... 277
6.15.3 Charging controller (dT) ............................................................................... 279
6.15.4 Maximum charging temperature, maximum safety temperature ................. 281
6.15.5 Priority ......................................................................................................... 282
6.15.6 Collector start function ................................................................................. 284
6.15.7 Frost protection for the collector .................................................................. 286
6.15.8 Overtemperature protection for the collector ............................................... 287
6.15.9 Recooling ..................................................................................................... 289
6.15.10 Evaporation temperature of medium ........................................................... 291
6.15.11 Speed control .............................................................................................. 292
6.15.12 Yield measurement ...................................................................................... 293
6.15.13 Hours run ..................................................................................................... 293
6.16 Solid fuel boiler ............................................................................................ 294
6.16.1 General ........................................................................................................ 294
6.16.2 Operating mode ........................................................................................... 295
6.16.3 Setpoints ...................................................................................................... 297
6.16.4 Control of the boiler/burner .......................................................................... 298
6.16.5 Overtemperature protection ......................................................................... 302
6.16.6 Frost protection ............................................................................................ 303
6.16.7 Frost protection for the solid fuel boiler ....................................................... 304
6.16.8 Configuration errors ..................................................................................... 304
6.16.9 Sensor error ................................................................................................. 304
6.17 Buffer storage tank ...................................................................................... 305
6.17.1 Release/control of heat source .................................................................... 305
6.17.2 Automatic locks ........................................................................................... 305
6.17.3 Charging solar/solid fuel boiler .................................................................... 307
6.17.4 Recooling ..................................................................................................... 308