Siemens RDG400 User manual

s
Operating Instructions
en
RDG400
RDG400
– the electronic room thermostat that allows you to set the ideal room temperature you want.
The
thermostat satisfies your individual needs in all operating modes: Comfort, Energy Saving and
Protection mode. You can either rely on the factory settings or make adjustments that suit your individual
needs.
Main display Operating mode
Room
temperature Heating mode
Room temperature in
degrees Celsius Electrical heater on
Room temperature in
degrees Fahrenheit Cooling mode
Button lock active
Comfort mode
Alert indicator
Energy Saving mode
Condensation in the
room Protection mode: Protection against frost
Temporary timer
function active Indicator for selecting mode
Additional user information
Operating mode button
Protection mode button
Rotary knob
Changing the room temperature
•The setpoint can be adjusted with the rotary knob when Comfort mode is
active
•Turn the rotary knob clockwise (+) to increase, or counterclockwise (-) to decrease
the current room temperature setpoint for Comfort mode
The setting range is from 5...40 °C (41 … 104 °F), unless limited by parameters P09 and P10
(parameter
Settings, see reverse side).
Select
ing Comfort mode
•Press the operating mode button until symbol appears, indicating that
Comfort mode is selected
•In Comfort mode, the thermostat maintains the setpoint which can be adjusted
with the rotary knob
Se
lecting Protection mode
•Press the operating mode button until symbol appears, indicating that
Protection mode is selected
•In Protection mode, the plant stops operating. If the room temperature falls below
8 °C, heating is switched on however to protect the room against frost
The setpoints for Protection mode can be changed by your HVAC installer if desired:
Changes made by installer: Frost protection: ________ °C / °F Heat protection: __________ °C / °F
Selecting
Energy Saving mode
In Energy
Saving mode, the room temperature is maintained at a lower or higher setpoint, thus saving
energy and money.
•When selecting Energy Saving mode, make sure parameter P02 is set to 2
•Press the operating mode button until appears
•You can change the preselected setpoint by adjusting parameters P11 and P12
(for parameter settings, see reverse side)
Important: The setpoint for Energy Saving mode can be set to OFF. This means that the thermostat is
deactivated! Risk of frost, i.e. no protective heating or cooling function is provided.
Energy saving tips without sacrificing comfort:
• Air out rooms for short periods of time only, but properly, with the windows wide open
• Never allow the room temperature to exceed 21 °C (70 °F) through heating, and to fall below 25.5 °C (78 °F) through
cooling
Button lock
•To lock or unlock the buttons manually, press and hold the right button for 3
seconds. The buttons can be locked or unlocked in this manner if P14 is set to 2
•If P14 is set to 1, the thermostat automatically locks the buttons 10 seconds after
the last adjustment

Temporary timer for
extended presence or absence
The
Comfort and Energy Saving modes can be temporarily extended by 0.5 to 9.5 hours using the
temporary timer
.
1. To set the temporary timer, press and hold the operating mode button for maximum 3 seconds.
While holding the button, turn the rotary knob clockwise or counterclockwise as required.
a) Turn the rotary knob clockwise to extend Comfort mode.
Display: 0....+9:30
b) Turn the rotary knob counterclockwise to extend Energy Saving mode.
Display: 0....-9:30
2. Release the operating mode button and the mode is temporarily changed, indicated by .
After the temporary timer has elap
sed, the thermostat will resume in the new operating mode as follows:
Extended Comfort mode New operating mode = Energy Saving
Extended Energy Saving mode New operating mode = Comfort
•If Energy Saving mode cannot be selected via the operating mode button (P02≠2), Protection mode
will be used for extended absence instead!
•The temporary timer function is aborted whenever a new setting is made
Note:
Extended
Comfort mode is also possible when an external contact such as a keycard switch or central time clock is active.
To enable this function
, the time for the extended period must be set via parameter P68.
Changing from heating to cooling mode
•Depending on the type of plant, the changeover from heating to cooling
(or vice versa) is made either automatically by a changeover sensor or a
remote changeover switch, or manually by pressing the operating mode
button (see parameter P01)
•To select cooling or heating manually (P01=2), press the operating mode
button until the desired mode appears
•With automatic changeover or continuous heating / cooling, symbols /
indicate that the system currently operates in heating or cooling mode
•With manual changeover, symbol appears, indicating that the system
currently operates in heating or cooling mode
Control
parameters
T
o change control parameters, proceed as follows:
1. Press both buttons simultaneously for at least 3 seconds.
2.
Release them and, within 2 seconds, press and hold
the right button again for 3 seconds. The display
shows P01.
3.
Select the required parameter by turning the rotary knob.
4. Press button (OK). The current value of the selected parameter starts blinking and
can be changed
by turning the rotary knob.
5. Press button (OK) to confirm the adjusted value, or (Esc) to cancel the change.
6.
If you wish to adjust additional parameters, repeat steps 3 through 5, or press (Esc) to leave the
parameter setting mode.
Parameter
list
No.
Parameter name
Default value
Setting range
Adj.
P01
Control sequence
Single-duct /
single-duct & H/C
coil:
1 = cooling only
0 = heating only
1 = cooling only
2 = H/C changeover, manually
3 = H/C changeover, auto
P02 Mode selection via
operating mode button
1 1 = Comfort / Protection
mode
2 = Comfort / Energy Saving /
Protection mode
P04 Selection of °C or °F Depends on
wizard setting
0 = °C
1 = °F
P05 Sensor calibration 0.0 K
(0.0 °F)
– 3...3 K
(– 6...6 °F)
P06
Standard temperature
display
0
0 = Room temperature
1 = Setpoint
P07 Additional display
information
0 0 = --- (no display)
1 = ˚C and ˚F
P08 Comfort basic setpoint 21 °C
(70 °F)
5...40 °C
(41…104 °F)
P09
Minimum setpoint
limitation in Comfort mode
5 °C
(41 °F)
5...40 °C
(41…104 °F)
P10
Maximum setpoint
limitation in Comfort mode
35 °C
(95 °F)
5...40 °C
(41…104 °F)
P11 Setpoint for heating in
Energy Saving mode
(WheatE-saving)
15 °C
(59 °F)
OFF, 5 °C…WcoolE-saving
(OFF, 41 °F…WcoolEconomy)
P12
Setpoint for cooling in
Energy Saving mode
(WcoolE-saving)
30 °C
(86 °F)
OFF, WheatE-saving…40 °C
(OFF, WheatEconomy…104 °F)
P14
Button lock
0
0 = disabled
1 = automatically
2 = manually
The control parameters displayed depend on the DIP switch settings made
Siemens Switzerland
Ltd.
Subject to
change
B3182en
2014-10-20