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Siemens Building Technologies
Basic Documentation QAA73.110 Room unit
CE1P2284en
HVAC Products
Description
of enduser settings
10.07.2002
3.9 Nominal d.h.w. temperature setpoint
During nominal operation, the nominal d.h.w. setpoint is maintained. It is possible to
use 2 different d.h.w. temperature setpoints.
1. Press the line selection buttons to select line 7.
2. Press the + / – buttons to adjust the nominal setpoint of the d.h.w. temperature.
Setting range
Unit
Factory setting
TBWR...TBWmax
°C
55
TBWR
Reduced d.h.w. temperature setpoint (setting one line 90)
TBWmax
Maximum nominal setpoint of d.h.w. temperature (setting on line 130)
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
22
8
4
Z17
90
7 130
7
Nominal d.h.w. temperature setpoint
90
Reduced setpoint of the d.h.w. temperature
130
Maximum nominal setpoint of d.h.w. temperature
D.h.w. heating has 2 different setpoints that can be used:
Nominal setpoint of d.h.w. temperature (setting on line 7): It ensures the d.h.w.
temperature required during occupancy times.
Reduced d.h.w. temperature setpoint (setting on operating line 90): 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
line 91.
Description
Line 7
Effect
D.h.w. temperature
setpoints
D.h.w. charging