Siemens Synco 700 Basic Documentation page 7

Building Technologies
HVAC Products
9.7.3 Quick setback and boost heating ................................................................ 133
9.8 Limit and protective functions ...................................................................... 134
9.8.1 Maximum limitation of the room temperature .............................................. 134
9.8.2 Limitation of the return temperature ............................................................ 135
9.8.3 Minimum limitation of the return temperature .............................................. 137
9.8.4 Frost functions and general protective functions ......................................... 137
9.8.5 Pulse limitation ............................................................................................ 138
9.8.6 Pump overrun and mixing valve overrun ..................................................... 139
9.8.7 Pump kick and valve kick ............................................................................ 139
9.9 Heat demand ............................................................................................... 139
9.10 Auxiliary functions........................................................................................ 140
9.10.1 Text designation .......................................................................................... 140
9.10.2 Acquisition of the room temperature............................................................ 140
9.10.3 Room control combination........................................................................... 142
9.11 Fault handling .............................................................................................. 143
9.12 Diagnostic choices....................................................................................... 146
10 DHW heating .............................................................................................. 147
10.1 Overview of function block........................................................................... 147
10.2 Configuration ............................................................................................... 148
10.2.1 General........................................................................................................ 148
10.2.2 DHW plant types.......................................................................................... 149
10.2.3 3-position or modulating mixing valve ......................................................... 150
10.2.4 Pump control ............................................................................................... 151
10.3 Operating modes and setpoints................................................................... 151
10.3.1 DHW operating modes ................................................................................ 151
10.3.2 User request via digital inputs ..................................................................... 152
10.3.3 Plant operation ............................................................................................ 153
10.3.4 Control priorities in DHW heating mode ...................................................... 153
10.3.5 DHW setpoints............................................................................................. 155
10.4 Storage tank charging ................................................................................. 156
10.4.1 Charging control via the storage tank temperature ..................................... 156
10.4.2 Forced charging........................................................................................... 158
10.4.3 Maximum charging time .............................................................................. 159
10.4.4 Maintained secondary circuit ....................................................................... 159
10.5 Direct DHW heating..................................................................................... 160
10.5.1 Adapting the control parameters ................................................................. 161
10.5.2 Requirements for the plant .......................................................................... 163
10.5.3 Flow switch .................................................................................................. 163
10.5.4 Maximum charging time .............................................................................. 165
10.5.5 Legionella protection with direct DHW heating............................................ 165
10.6 Legionella protection ................................................................................... 165
10.6.1 General........................................................................................................ 165
Modular Heating Controller RMH760B
Contents
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CE1P3133en
05.02.2007