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Siemens
Heating and D.h.w. Controller RVL481
CE1P2541en
Building Technologies
5 Function block "Enduser space heating"
20.05.2008
5
Function block "Enduser space
heating"
This function block contains settings that the enduser himself can make.
5.1 Operating
lines
Line Function, parameter
Factory setting (range)
Unit
1
Setpoint of NORMAL heating
20.0 (0…35)
°C
2
Setpoint of REDUCED heating
14.0 (0…35)
°C
3
Setpoint of holiday mode / frost protection
10.0 (0…35)
°C
4
Weekday for the heating program
1-7 (1…7 / 1-7)
5
First heating period, start of NORMAL heating
06:00 (00:00…24:00)
hh:mm
6
First heating period, start of REDUCED heating
22:00 (00:00…24:00)
hh:mm
7
Second heating period, start of NORMAL heating
--:-- (00:00…24:00)
hh:mm
8 Second
heating
period,
start of REDUCED heating
--:-- (00:00…24:00)
hh:mm
9
Third heating period, start of NORMAL heating
--:-- (00:00…24:00)
hh:mm
10
Third heating period, start of REDUCED heating
--:-- (00:00…24:00)
hh:mm
11 Holiday
period
- (1…8)
12
Date of first day of holiday
--.-- (01.01…31.12)
dd:MM
13
Date of last day of holiday
--.-- (01.01…31.12)
dd:MM
14
Heating curve, flow temperature setpoint at an outside
temperature of 15 °C
30 (20…70)
°C
15
Heating curve, flow temperature setpoint at an outside
temperature of –5 °C
60 (20…120)
°C
5.2 Setpoints
5.2.1 General
The setpoints of the NORMAL and the REDUCED room temperature and of frost pro-
tection for the plant / holiday mode are entered directly in °C room temperature. They
are independent of whether or not the control uses a room temperature sensor.
5.2.2
Frost protection for the building
The lowest valid room temperature setpoint always corresponds to at least the setpoint
of holiday mode / frost protection (setting on operating line 3), even if lower values have
been entered as the setpoints of the NORMAL and the REDUCED room temperature
(settings on operating lines 1 and 2).
If a room sensor is used and the room temperature falls below the holiday / frost protec-
tion setpoint, ECO – if available – will stop OFF until the room temperature has risen
1 °C above the holiday / frost protection setpoint.
5.3 Heating
program
The heating program of the RVL481 provides a maximum of 3 heating periods per day;
also, every weekday may have different heating periods.
The entries to be made are not the switching times, but the periods of time during which
the NORMAL room temperature shall apply. Usually, these periods of time are identical
to the building's occupancy times. The actual switching times for the change from the
REDUCED to the NORMAL room temperature, and vice versa, are calculated by the
optimization function. (Precondition: Optimization is activated).
Using the setting "1-7" on operating line 4, it is possible to enter a heating program that
applies to all weekdays. This simplifies the settings: If the weekend times differ, enter
the times for the entire week first, and then change days 6 and 7 as required.
The settings are sorted and overlapping heating periods combined.
Caution
