Siemens RVA47.320 - Page 6

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Siemens Building Technologies Basic Documentation RVA47.320 CE1P2379E
HVAC Products Contents 15.07.2002
5.2 Maximum limitation of the boiler temperature setpoint ................................112
5.3 Pump overrun time.......................................................................................113
5.4 Minimum limitation of the boiler return temperature.....................................113
5.5 Calibration of actual output range of BMU 1-4.............................................114
Heating circuit values...................................................................................................115
5.6 Gain factor of room influence (KORR) .........................................................115
5.7 Constant for quick setback (KON) ...............................................................116
5.8 Boost of room temperature setpoint.............................................................117
5.9 Frost protection for the plant ........................................................................118
5.10 Overtemperature protection for the pump heating circuit.............................119
5.11 Heat gains....................................................................................................120
5.12 Adaption sensitivity 1 ...................................................................................120
5.13 Adaption sensitivity 2 ...................................................................................121
D.h.w. values ...............................................................................................................123
5.14 Maximum nominal setpoint of d.h.w. temperature .......................................123
5.15 Switching differential of the d.h.w. temperature ...........................................123
5.16 Legionella function .......................................................................................124
5.17 Setpoint of the legionella function ................................................................125
5.18 Protection against discharging of d.h.w. ......................................................125
Cascade settings .........................................................................................................127
5.19 Cascade management strategy ...................................................................127
5.19.1 Type of lead boiler operation .......................................................................128
5.19.2 Running time strategies ...............................................................................129
5.20 Lower limit of output range (Pmin) ...............................................................131
5.21 Upper limit of output range (Pmax) ..............................................................132
5.22 Mandatory time on basic stage ....................................................................132
5.23 Minimum temperature differential at the pressureless header.....................133
Configuration of plant...................................................................................................134
5.24 Continuous display.......................................................................................134
General values.............................................................................................................135
5.25 Software version ..........................................................................................135
5.26 Device operating hours ................................................................................135
6 Functions with no settings............................................................................136
6.1 Chimney sweep ...........................................................................................136
6.2 Generating the boiler temperature setpoint .................................................136
6.3 Automatic 24-hour heating limit ...................................................................137
6.3.1 Without room influence ................................................................................137
6.3.2 With room influence .....................................................................................138
6.4 Quick setback with room sensor ..................................................................139
6.5 D.h.w. push ..................................................................................................140
6.6 Pump kick ....................................................................................................141
6.7 Protection against discharging after d.h.w. heating .....................................141
6.8 Overview of pump operation ........................................................................142
6.9 Frost protection ............................................................................................143
6.9.1 For the boiler................................................................................................143
6.9.2 For the d.h.w. ...............................................................................................143
7 Application examples ...................................................................................144
7.1 Plant types RVA47.320 - no. 27...................................................................145
7.2 Plant types RVA47.320 - no. 28...................................................................146
7.3 Plant types RVA47.320 - no. 29...................................................................147
7.4 Plant types RVA47.320 - no. 30...................................................................148