Siemens RVL481 - Page 7

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Siemens Heating and D.h.w. Controller RVL481 CE1P2541en
Building Technologies Contents 20.05.2008
16.1 Operating lines ..............................................................................................62
16.2 Assignment of d.h.w. heating ........................................................................62
16.3 Program for the circulating pump ..................................................................62
16.3.1 General mode of operation............................................................................62
16.3.2 Operation of circulating pump during the holiday period ...............................63
16.4 Frost protection for d.h.w...............................................................................64
16.4.1 Frost protection in the d.h.w. storage tank ....................................................64
16.4.2 Frost protection in the d.h.w. storage tank flow.............................................64
16.4.3 Frost protection for the secondary d.h.w. flow...............................................64
17 Function block "Release of d.h.w. heating"..............................................65
17.1 Operating line ................................................................................................65
17.2 Release .........................................................................................................65
17.2.1 Function.........................................................................................................65
17.2.2 Release programs .........................................................................................66
17.2.3 D.h.w heating during the holiday period ........................................................66
18 Function block "D.h.w. priority and flow temperature setpoint" ............67
18.1 Operating line ................................................................................................67
18.2 Settings..........................................................................................................67
18.3 D.h.w. priority.................................................................................................67
18.3.1 Absolute priority.............................................................................................67
18.3.2 Shifting priority...............................................................................................68
18.3.3 No priority ......................................................................................................68
18.4 Flow temperature setpoint.............................................................................68
18.4.1 Flow setpoint according to maximum selection.............................................68
18.4.2 Flow setpoint according to d.h.w. ..................................................................68
19 Function block "D.h.w. storage tank"........................................................70
19.1 Operating lines ..............................................................................................70
19.2 D.h.w. charging..............................................................................................70
19.2.1 D.h.w. charging with hot water ......................................................................70
19.2.2 Alternate d.h.w. charging with hot water and electricity.................................70
19.3 D.h.w. temperature and d.h.w. switching differential.....................................71
19.4 Boost of the d.h.w. charging temperature......................................................72
19.5 Maximum d.h.w. charging time......................................................................72
19.6 Setpoint of legionella function........................................................................72
19.7 Forced charging.............................................................................................73
19.8 Protection against discharging ......................................................................73
19.8.1 Purpose .........................................................................................................73
19.8.2 Mode of operation..........................................................................................73
19.9 Manual d.h.w. charging .................................................................................74
20 Function block "3-position actuator for d.h.w." .......................................75