Operating Instructions

Energy-efficient heating with the
RVD12… and RVD14… district heating
controllers
en Operating Instructions
CE1B2510en 74 319 0683 0 b
05.03.2010
You want to switch the heating on
1. Is the plant ready to operate? Check the mains
isolator.
2. Check the time of day and the date (for readjust-
ments, refer to section "You want to set the clock").
3. Press
button for automatic mode.
Meaning of info given in the display
Bar under
… is lit
Meaning
°
C
Nominal room temperature is maintained
(setting made with the setting knob)
Reduced room temperature is maintained
Display shows
Meaning
Frost protection temperature is main-
tained
ECO
Presently no heating required
or
A limitation is active
BUS
Controller connected to the data bus
Solar d.h.w. charging
(certain controller types only)
You want to heat in automatic mode
Automatic mode controls the room temperature ac-
cording to the heating program entered.
1. Press
button for automatic mode (button
lights up).
You want to heat in continuous mode
In continuous mode, the room temperature is main-
tained at the level set with the setting knob.
1. Press button
for continuous mode (button lights
up).
2. Adjust the required room temperature with setting
knob.
You want to leave your home for a
certain period of time
Set the plant to protection mode. It is then shut down,
but will remain protected against frost.
1. Press button
(button lights up).
You want to provide d.h.w.
Adjust the required temperatures:
Press … Display Press …
… to adjust the required
temperature
Prog
Normal d.h.w. tem-
perature setpoint
Prog
Reduced d.h.w. tem-
perature setpoint
For d.h.w. heating, you have two choices:
• You want to heat up d.h.w. according to the time
switch program
1.
Press button
(button light steady on). The
d.h.w. is heated up according to the time switch
program.
• You want to heat up d.h.w. immediately
1.
Press button
for 3 seconds (as a confirma-
tion, the button flashes for 3 seconds).
The d.h.w. is heated with a solar collector provided
that your plant is equipped accordingly. The symbol
indicates that solar d.h.w. is heated.
You want to readjust the temperature
required for your rooms
1. Adjust the required nominal room temperature with
the setting knob. The setting is active:
• In automatic mode during the heating periods
entered in the heating program
• Always in continuous mode
2. Adjust the other temperatures and the heating curve
using the buttons:
Press … Display Press …
… to adjust the
required temperature
Prog
Non-
adjustable
Display of adjusted
setting knob tem-
perature
Prog
Room temperature
for reduced heating
Prog
Room temperature
for holidays / frost
protection
Prog
Heating curve slope
Your rooms are too cold or too warm
Especially in mild weather:
Readjust the room temperature with setting knob.
Especially in cold weather:
Readjust the heating curve slope on operating line
• Room temperature too high:
reduce slope by about 0.05
• Room temperature too low:
raise slope by about 0.05
Especially in the night:
Readjust the temperature for reduced heating on op-
erating line
Each time you have made a room temperature read-
justment, wait two days. The controlled system re-
quires a certain time to readapt!
You want to set the clock
Press … Display Press …
… to set the time of day
and the date
Prog
Time of day
Prog
Non-
adjustable
Display of weekday
1 = Monday,
2 = Tuesday etc.
Prog
Date (e.g. 02.12 = 2
nd
December)
Prog
Year
You want to read the temperatures
Press … Display … to read the temperature in °C
Prog
Room temperature
Prog
Outside temperature
Prog
D.h.w. temperature
Prog
Heating flow temperature