Siemens RDG2 KN Series Operating Instructions

Operating Instructions
RDG2..KN – Room thermostat with KNX communications allowing users to set ideal
temperature, relative humidity and CO
the operating modes Comfort, Economy and Protection.
In addition, it can operate in Auto mode as per a schedule via KNX bus or 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 outside temperature, time of
day from KNX bus, relative humidity, or indoor air quality
Morning: 12-hour format; Afternoon: 12-hour format
Relative humidity
Indoor air quality
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
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 or KNX bus command) 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 or on KNX) 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
KNX bus or 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!
Green leaf indication
The green leaf indication is an energy-efficient setting and indicates the end user settings.
Green leaf: Settings are within the
preset energy-efficient range.
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
level (RDG204KN&RDG264KN). The thermostat offers
2
Main display
Operating mode selection *
Scheduler
Fan speed selection
Escape
Delete schedule
Confirm parameters
Number of schedules or slave alarms
Outside temperature
Parameter
Digits for setpoint display
Time bar for schedule
Degrees Celsius or Fahrenheit
CO values
2
Fan mode button
Green leaf
and the button can be used to switch unit between °C and °F. (scan the above QR

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
Red leaf: Settings exceed the preset energy-
efficient range.
End users can press the red leaf and return to the
energy-efficient range.
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.
RDG200KN, RDG204KN
RDG260KN, RDG264KN
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
Fresh air indication
Condensation in room
(dewpoint sensor active) or
humidity control active
Button lock
Automatic fan
Fan speed I
Fan Speed II
Fan Speed III
Auto mode

once.

once.