Siemens RVL482 User manual

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Operating Instructions – Heating Controllers
RVL479, RVL480, RVL481, RVL482
Content
Overview, display, and symbols ..................................................... 4
Info button....................................................................................... 7
Operating modes ............................................................................ 8
Switching the heating ON ............................................................... 9
D.h.w. heating............................................................................... 10
Room temperature is not correct ................................................. 12
Departing from the heating program............................................. 14
Querying and readjusting the setting values................................. 15
Selecting the room temperature setpoints.................................... 16
Changing the heating program .................................................... 17
Entering the holidays ................................................................... 20
Querying or readjusting the d.h.w. temperature ........................... 21
Changing switching program 2 ..................................................... 22
Setting the clock ........................................................................... 24
Tips............................................................................................... 25
Faults and manual operation ........................................................ 27

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1
4
56
7
2
3
11
2540Z05
8910
ABC

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Overview – what is where?
1 Operating mode buttons. The button indicating the
current operating mode is lit
2 Button for d.h.w. heating ON / OFF
(only RVL481, RVL482)
3 Info button
4 Display
5 Buttons for programming the setting values
6 Adjustment of heating curve
7 Buttons for manual operation:
A = manual operation ON (LED lit)
For buttons B and C, refer to page 29
8 LED for actuator OPENS or 1st burner stage ON
9 LED for actuator CLOSES or 2nd burner stage ON
10 LED for pump ON
11 Knob for room temperature readjustments

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Meaning of symbols on the display
NORMAL heating
REDUCED heating
ECO No heating required according to the prevailing
outdoor temperature
Holiday mode
Heating OFF (frost protection ensured)
Solar d.h.w. charging (only RVL481, RVL482)
Fault in the plant
One of the maximum limitations is active
One of the minimum limitations is active
BUS Controller connected to the data bus

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You want to obtain information
Press several times to display the:
Time of day
Outdoor temperature
Room temperature (only if a sensor is used)
Flow or boiler temperature
The marking indicates the displayed variable.
The info selected last is permanently displayed!

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The different operating modes
Heating OFF
Automatic heating up and setback according to
the heating program / Heating automatically OFF
during the holiday period entered / Heating
automatically OFF if permitted by the prevailing
outdoor temperature (ECO function)
Continuously REDUCED heating
Continuously NORMAL heating
Frost protection ensured in all operating modes
Remote operation with a room unit is only possible
in AUTO mode.
If the button flashes, the room unit overrides
the controller's heating program.
In AUTO mode, the controller operates fully automati-
cally throughout the year.

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You want to switch the heating ON
•Is the heating plant ready to operate? Check position
of the mains isolator
•Press button several times until the display shows
the weekday and the time of day. Make corrections, if
necessary
•Check date and time. Make corrections, if necessary
•Press for AUTO mode
•Activate the d.h.w. heating (only RVL481, RVL482)
Practice-oriented and proven values were entered by
your heating engineer when the controller was commis-
sioned!

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You want d.h.w. heating
(Only RVL481, RVL482)
Press to switch d.h.w. heating ON (button lit) and OFF
(button extinguished).
When the button is lit, the controller provides d.h.w.
heating at the following times, depending on the settings
made by your heating engineer:



According to switching program 2
According to the heating program
24 hours per day
(⌧Mark with a cross whichever applies)

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For plants with d.h.w. storage tank, press until the
button flashes to charge it manually (not possible in
plants where d.h.w. is heated electrically).
The d.h.w. is heated with a solar collector provided that
your plant is equipped accordingly. The symbol indi-
cates that solar d.h.w. is heated.
D.h.w. heating is independent of the controller's
operating mode.
During the holiday period, d.h.w. is not heated.

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Room temperature is not correct
If the room temperature is never correct, neither in mild
nor in cold weather, make a room temperature readjust-
ment with the setting knob:
•Room temperature too low:
Turn the knob toward +
•Room temperature too high:
Turn the knob toward –
2540Z07
The setting knob's scale gives the room temperature
readjustment in °C.
If the room temperature is not correct in mild weather only
or in cold weather only, make the readjustment with the
heating curve. For that purpose, there are three setting
choices available, depending on the entries made by your
heating engineer.
To make a readjustment, proceed as follows:

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Setting
choice
Room temperature
not correct in mild
weather
Room temperature
not correct in cold
weather
Analog Use slider on the left
and readjust by about
5 °C
Use slider on the
right and readjust by
about 5 °C
Digital Readjust line by
about 5 °C
Readjust line by
about 5 °C
Via data
bus
Contact plant operator Contact plant opera-
tor
(⌧Mark with a cross whichever applies)
After having made a readjustment, wait two days – the
room temperature requires a certain time to adapt!

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You don't want to heat according to the
heating program
•No setback:
Press to select NORMAL mode
•Reduced heating:
Press to select REDUCED mode
Don't forget to return to the normal heating program!
The controller operates according to the heating pro-
gram only when in AUTO mode.

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How to query or readjust setting values
•Press or to access the setting level
•The settings are assigned to several lines:
Select next line below
Select next line above
•Readjustment of values:
Decrease
Increase
•The value is adopted by selecting the next line or by
leaving the setting level
•Leaving the setting level: Press button of the required
operating mode, or the info button, or automatically after
30 minutes
For list of lines, refer to the last page of these
instructions.
If you wish to practice, reset the time of day (refer to
page 24).

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You want to select other room temperature
setpoints
To select lines: Press and
To readjust values: Press and
•On line , change the setpoint of NORMAL heating
(display ).
Standard setting: 20 °C
•On line , change the setting of REDUCED heating
(display ).
Standard setting: 14 °C
•On line , change the setpoint of protection and
holiday mode (display ).
Standard setting: 10 °C
To leave the setting level: Select the required operating
mode.
Don't forget temperature-sensitive objects like plants!

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You want to change the heating program
To select lines: Press and
To readjust values: Press and
For the daily heating up and setback, the controller
comes with the following standard heating program:
•Daily from 06:00 to 22:00: NORMAL heating
•Daily from 22:00 to 06:00: REDUCED heating
2541Z04
You can enter a maximum of three heating periods per
day. For each heating period, the following times need to
be entered:
•Start of NORMAL heating
•End of NORMAL heating

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Procedure:
1. On line , select the weekday whose times you want
to change:
1 = Monday, 2 = Tuesday, etc.
1-7 = all weekdays
2. On line , set the time for the start of NORMAL heating.
3. On line , set the time for the end of NORMAL heating.
If additional daily heating periods are required:
4. On lines and , set the times required for the start
and the end of the 2nd heating period.
5. On lines and , set the times required for the start
and the end of the 3rd heating period.
To cancel a heating period, change line , or
until --:-- appears.
To leave the setting level: Select the required operating
mode.

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Example of a 24-hour program with three heating periods:
2541Z05
NORMAL heating from 07:00 to 12:00, from 14:00 to 18:00,
and from 19:00 to 23:00
If the settings for the weekend differ from the other
weekdays, first enter the times for the entire week (1-7);
then, change weekdays 6 and 7.

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You want to enter your holidays
To select lines: Press and
To readjust values: Press and
The data for a maximum of eight holiday periods can be
entered. To enter the data for one period, proceed as
follows:
1. Line : Enter the number of the holiday period.
2. Line : Enter the date of the first day.
3. Line : Enter the date of the last day (possible only
when an entry on line has been made).
To cancel an entry, change line until --.-- appears on the
display. When a holiday period has elapsed, its data will be
cancelled.
To leave the setting level: Select the required operating
mode.
No d.h.w. heating during the holiday period (only
RVL481, 482).
Before making any entries, prepare a holiday plan.