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Siemens Building Technologies
Basic Documentation RVP540 / RVP550
CE1P2488en
HVAC Products
Description of the enduser settings
18.10.2002
D.h.w. values
3.16 Nominal d.h.w. temperature setpoint
•
D.h.w. is heated only if there is demand for it.
•
Possibility of using 2 different d.h.w. temperature setpoints
Setting range
Unit
Factory setting
TBWR...TBWmax °C
55
TBWR
Reduced setpoint of the d.h.w. temperature (setting on operating line 770)
TBWmax
Maximum nominal setpoint of the d.h.w. temperature (setting on operating line 750
EXP
)
The temperature setpoint during normal d.h.w. operation will be changed.
0 10 20 30 40 50 60 70 80 90 100 120
130
140 °C
23
92
Z
13
26
Setting "Nominal d.h.w. temperature setpoint”
770
Setting "Reduced d.h.w. temperature setpoint”
750
EXP
Setting "Maximum nominal setpoint of the d.h.w. temperature”
D.h.w. heating has 2 different setpoints that can be used:
•
Nominal d.h.w. temperature setpoint: It ensures the d.h.w. temperature required
during main occupancy times
•
Reduced d.h.w. temperature setpoint (setting on operating line 770): it ensures the
d.h.w. temperature required during the main occupancy times.
The criteria required for releasing d.h.w. heating are defined by the settings made on
operating lines 771, 773 and 774.
In the event of a sensor with an open-circuit, the d.h.w. will not be heated (risk of
scalding).
Benefit
Setting
Effect
D.h.w. temperature
setpoints
D.h.w. charging
Note
