Operating Instructions
RDG2..T – Room thermostat allowing users to set ideal temperature. The thermostat offers the
operating modes Comfort, Economy and Protection.
In addition, it can operate in Auto mode as per a schedule via local.
The fan operates either in Auto mode or at the selected speed in Manual mode.
Users can either use the factory settings or adjust settings as desired.
Additional user information, such as time of day
Morning: 12-hour format; Afternoon: 12-hour format
Degrees Celsius or Fahrenheit
Value with thermometer: Digits for room temperature display
Operating mode button *
Rotary knob
Protection hospitality mode or scheduler button
* When P002 = 3, the icon is displayed as
available from product index C or a higher version. (scan the above QR code for the latest version info).
Changing the room temperature
Turn the rotary knob clockwise to increase, or counterclockwise to decrease the current room
temperature setpoint.
Note: The setting range is 5...40 °C; it can be limited by parameters P013 and P016.
(for parameter settings, see Control parameters on page 2).
Adjusting the fan speed
Speed I
Speed II
Speed III
Changing the operating mode
Comfort mode
1. Comfort mode
In Comfort mode, the thermostat maintains the room temperature at the setpoint which can be adjusted
with the rotary knob.
2. Economy mode
In Economy mode, the thermostat maintains the room temperature at a lower or higher setpoint, thus saving
energy and money.
The thermostat can be set to Economy mode either by pressing the operating mode button if enabled
(P002 = 2), or via an external signal (switch) such as keycard or presence detector.
The Economy setpoints are factory-set to 15 °C for heating and 30 °C for cooling. They can be adjusted via
parameters P019 and P020 (for parameter settings, see Control parameters on page 2).
3. Protection mode
In Protection mode, the thermostat stops operating. However, if the room temperature drops below 8 °C,
heating is switched on to protect the room against frost.
The thermostat switches to Protection mode when the window contact (local) is activated.
The setpoints for Protection mode can be changed by your HVAC installer if desired:
Changes made by installer:
4. Auto mode
In Auto mode, the thermostat automatically switches over between Comfort and Economy mode as per the
local schedule (enabled via P005).
If no schedule is available, Comfort replaces Auto.
Important: If setpoints are set to Off, there is no protective heating or cooling function. Risk of frost!
Reminder to clean filter, display of external faults
This message reminds you to clean the filter on your HVAC equipment.
FIL **
It appears after _______ "fan operating hours" and disappears when the thermostat is
AL1 **
manually set to Protection. These fault messages tell you an external fault has occurred **:
AL2 **
AL1 : _______________________
AL3 **
AL3 : _______________________
** Needs to be configured by HVAC installer
Scheduler
Set schedule
Press button
once and then turn the rotary knob or press button
mode PROG.
Press button
once to enter scheduler mode
Turn the rotary knob to select the weekday to be set, then press button
Turn the rotary knob to view existing schedules, then press button
to be edited.
Comfort mode setting of selected schedule and icons
The start time for Comfort flashes and can be changed by turning the rotary knob.
Press button
once to confirm the adjusted value and enter the Economy mode setting for the schedule.
Icons
and
are displayed, then press button
changed by turning the rotary knob.
Press button
once to confirm the adjusted value. Then users can view other schedules by turning the
rotary knob and enter other schedule settings (same as edited schedule).
Note: User can press button
three per day.
Set TIME
Press button
once and then turn the rotary knob or press button
mode TIME.
Press button
once and then turn the rotary knob to select time format (12H).
Press button
once and then turn the rotary knob to select AM or PM.
Press button
once and enter the hour setting.
The hour value flashes and can be changed by turning the rotary knob.
Press button
once to confirm the adjusted value and enter the minutes setting.
Repeat the steps as for the hour.
en
Main display
Operating mode selection *
Scheduler
Fan speed selection
Escape
Delete schedule
Confirm parameters
Number of schedules
Parameter
Digits for setpoint display
Time bar for schedule
Fan mode button
and the button can be used to switch unit between °C and °F. This function is only
Press the right button repeatedly until the desired fan mode is reached.
In Auto mode
, the fan speed is automatically selected by the thermostat
depending on setpoint and current room temperature.
In Manual mode, the fan operates independently and runs at the speed set by the
user: speed I / speed II / speed III.
Economy mode
Frost protection: _________ ˚C Heating protection: __________˚C
to delete any schedule or
Protection mode
AL2 : __________________________
continuously to select programming
.
once to select the schedule that need
and
are displayed, then press button
once. The start time for Economy flashes and can be
(Esc) to cancel the change. The maximum number of set schedule is
continuously to select programming
Note: When time format is 24 h, AMPM is not displayed.
RDG200T..
RDG260T..
Operating mode
Holiday mode
Protection mode
Economy mode
Comfort mode
Cooling mode
Electric heater active
Heating mode
Scheduler mode
Manual changeover
Auto mode
Temporary timer
Fault
Button lock
Condensation in room
(dewpoint sensor active)
Automatic fan
Fan speed I
Fan Speed II
Fan Speed III
Auto mode
once.
once.
Need help?
Do you have a question about the RDG200T Series and is the answer not in the manual?
Questions and answers
Hello, my problem is, that I cannot use my thermostat in manual mode anymore, i.e. when I set the mode to ON, is either goes into comfort mode or economy mode. I can set a temperature, but it has no effect - no heating symbol is displayed and no **** symbol. I can also hear, that my heating system is not working and the flat is cold. Please help.
If the Siemens RDG200T Series thermostat is not functioning in manual mode and not displaying the heating symbol, possible issues include:
1. Setpoint set to OFF: If the heating setpoint for the current mode (Comfort, Economy, or Protection) is set to OFF, the thermostat will not control room temperature in heating mode, and the heating symbol will not display.
2. Wrong operating mode: The thermostat may be in a mode (e.g., Economy or Protection) with setpoints that prevent heating. Check P019/P020 for Economy and P100/P101 for Protection.
3. Window contact active: If a window contact is activated, the thermostat may switch to Protection mode, disabling heating unless the room drops below 8 °C.
4. Auto mode override: If Auto mode is active with no valid local time schedule (P005 = OFF), the thermostat may default to Comfort, but if Comfort setpoints are set incorrectly, heating may not activate.
Check the operating mode, setpoints, and ensure none are set to OFF.
This answer is automatically generated