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Siemens Building Technologies
Basic Documentation RVP540 / RVP550
CE1P2488en
HVAC Products
Description of the enduser settings
18.10.2002
3.15 Switching times
This is the setting of the switching times for d.h.w. time switch program at which the
d.h.w. temperature setpoint will change.
The time switch program thus set is activated by pressing the d.h.w. operating mode
button
.
Setting range
Unit
Factory setting
- -:- - / 00:00...24:00
h : min
See "Program overview"
below
Line
Switching point
D.h.w temperature setpoint
Standard
Switch-on time period 1
Nominal setpoint
06:00
Switch-off time period 1
Reduced setpoint
22:00
Switch-on time period 2
Nominal setpoint
– – : – –
Switch-off time period 2
Reduced setpoint
– – : – –
Switch-on time period 3
Nominal setpoint
– – : – –
Switch-off time period 3
Reduced setpoint
– – : – –
The principle is the same as that used with ”Time switch program space heating”; refer
to operating lines 6…1.
When solar collectors (with heat exchanger in the d.h.w. storage tank) or a wood-fired
boiler is used, the d.h.w. storage tank should not be charged during the day by the
controlled heat sources to ensure that the solar energy or energy delivered by the
wood-fired boiler can still be accommodated in the d.h.w. storage tank.
The switching times must be appropriately set.
A setting example could look as follows:
[°C]
23
92
Z
3
7
t [h]
2
0
4
6
10
8
12
14
18
16
20
22
24
26
Nominal setpoint TBWw of the d.h.w. temperature
770
Reduced setpoint TBW
R
of the d.h.w. temperature
Description
Setting
• • •
Program overview
Example:
Important
Example
