Siemens RVL481 - Page 5

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Siemens Heating and D.h.w. Controller RVL481 CE1P2541en
Building Technologies Contents 20.05.2008
8.1 Operating line ................................................................................................34
8.2 General..........................................................................................................34
9 Function block "Cascade slave"................................................................35
9.1 Operating lines ..............................................................................................35
9.2 Mode of operation..........................................................................................35
9.2.1 Boiler sequence release integral (KFI) ..........................................................35
9.2.2 Boiler sequence reset integral (KRI)..............................................................35
10 Function block "Space heating" ................................................................36
10.1 Operating lines ..............................................................................................36
10.2 ECO function .................................................................................................36
10.2.1 Compensating variables and auxiliary variables ...........................................36
10.2.2 Heating limits.................................................................................................37
10.2.3 Mode of operation..........................................................................................37
10.2.4 Operating modes and operating states .........................................................38
10.3 Room temperature source.............................................................................38
10.4 Optimization...................................................................................................38
10.4.1 Definition and purpose...................................................................................38
10.4.2 Fundamentals................................................................................................38
10.4.3 Process..........................................................................................................39
10.4.4 Room model temperature..............................................................................39
10.4.5 Optimum stop control ....................................................................................40
10.4.6 Quick setback................................................................................................40
10.4.7 Optimum start control ....................................................................................41
10.4.8 Boost heating.................................................................................................41
10.5 Room functions..............................................................................................42
10.5.1 Maximum limitation of the room temperature ................................................42
10.5.2 Room influence..............................................................................................43
10.6 Heating curve ................................................................................................43
10.6.1 Purpose .........................................................................................................43
10.6.2 Basic setting ..................................................................................................43
10.6.3 Deflection.......................................................................................................44
10.6.4 Parallel displacement of heating curve..........................................................45
10.6.5 Display of setpoints .......................................................................................45
10.7 Generation of setpoint ...................................................................................46
10.7.1 Weather-compensated control ......................................................................46
10.7.2 Demand-compensated control ......................................................................46
11 Function block "3-position actuator heating circuit"...............................47
11.1 Operating lines ..............................................................................................47
11.2 Limitations .....................................................................................................47
11.2.1 Flow temperature limitations..........................................................................47