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Siemens Building Technologies Basic Documentation RVA63.242, RVA53.242 CE1P2373E
Landis & Staefa Division Contents 26.03.2001
4.80 Maximum value of heat demand signal (DC 0...10 V) H1 .......................145
4.81 Operating action contact H1 and H2 ....................................................145
4.82 Input B31 / H2 / B41..........................................................................146
5 Description of OEM settings ...............................................................148
Heat generating equipment ................................................................148
5.1 Minimum limitation of boiler temperature (TKmin
OEM
)..............................148
5.2 Maximum limitation of boiler temperature (TKmax)................................148
5.3 Switching differential of the boiler temperature......................................149
5.3.1 Single-stage burner...........................................................................150
5.3.2 2-stage burner..................................................................................150
5.4 Minimum limitation of the burner running time.......................................151
5.5 Release integral of burner stage 2.......................................................152
5.5.1 Temperature-time integral..................................................................152
5.6 Reset integral of burner stage 2..........................................................153
5.6.1 Temperature-time integral..................................................................153
5.7 Pump overrun time ............................................................................154
5.8 Operating mode of boiler ....................................................................155
5.8.1 Extended burner running time .............................................................155
5.9 Protective boiler start-up ....................................................................156
5.9.1 Impact on 2-position loads..................................................................156
5.9.2 Impact on modulating loads ................................................................157
5.9.3 Temperature-time integral..................................................................158
5.10 Control of boiler pump .......................................................................159
Modulating burner.............................................................................160
5.11 Running time of damper actuator.........................................................160
5.12 Proportional band (Xp).......................................................................161
5.13 Integral action time (Tn) .....................................................................161
5.14 Derivative action time (Tv) ..................................................................161
5.15 Switching differential of damper actuator..............................................162
Maintained boiler return temperature ...................................................163
5.16 Maintained boiler return temperature with mixing valve ...........................163
5.17 Maintained boiler return temperature with consumer influence.................163
5.18 Minimum limitation of the boiler return temperature ................................164
5.19 Switching differential of bypass pump ..................................................164
5.20 Control of the bypass pump ................................................................165
5.20.1 Parallel with the burner Setting 0........................................................165
5.20.2 According to the boiler return temperature Setting 1..............................166
5.20.3 Temperature-time integral..................................................................168
Heating circuit ...................................................................................169
5.21 Boost of the flow temperature setpoint mixing valve (UEM).....................169
5.22 Gain factor of room influence (KORR) ..................................................170
5.23 Constant for quick setback and optimum start control (KON)...................170
5.23.1 Quick setback without room influence ..................................................171
5.23.2 Optimum start control without influence................................................171
5.24 Boost of room temperature setpoint (DTRSA).......................................172