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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