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Siemens Building Technologies Basic Documentation RVD230 CE1P2383en
HVAC Products 18 Function block Extra legionella functions 27.05.2004
T
BWw
T
BWw
- SD
BW
T
BWw
- SD
BW
- 2 K
ON
OFF
ON
OFF
T
BWx
t
2381D07
1
2
8
5 6
3
ON
OFF
4
7
①
Circulating pump
②
Forced charging
③
Release of the legionella function
④
Start conditions for the legionella function met
⑤
Start dwelling time
⑥
Reset dwelling time
⑦
Start dwelling time
⑧
Dwelling time has elapsed
T
BWx
D.h.w. temperature
T
BWw
D.h.w. temperature setpoint
SD
BW
Switching differential of d.h.w. heating
t Time
If a maximum d.h.w. charging time has been set, it also acts here. If the legionella set-
point is not reached, the legionella function will be interrupted and resumed on comple-
tion of the maximum charging time.
The legionella setpoint will not be affected by the maximum of the d.h.w. temperature
setpoint.
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