Siemens RDF400 Series Operating Instructions Manual
CE1B3076.2en / 25 Feb 2010 Subject to change Siemens Building Technologies
s
Operating Instructions
RDF400...
RDF400... – the room thermostat that allows you to set the ideal room temperature.
The thermostat provides Comfort, Energy Saving, and Protection mode and can operate in Auto timer mode using
8 programmable time schedules.
The fan operates either in Auto mode or at a speed selected in Manual mode.
You can either take advantage of the thermostat's factory settings or adjust it as needed.
Display
Protection mode
Auto Timer mode
Comfort mode
Energy Saving mode
Measured room temperature,
setpoints and parameters
Current time of day
Actual room temperature
Fault indicator *
Condensation in the room *
Cooling demand / mode
Heating demand / mode
Electrical heater active
Automatic fan
Low fan speed
Medium fan speed
High fan speed
Buttons are locked
Weekday 1…7
(1 = Monday / 7 = Sunday)
Operation and settings
Operating mode button
** **
View and set
Auto-Timer-Programm
Protection mode / system ON
Colder / Warmer
Fan mode button
– Automatic fan (
)
– Manual fan (
)
Set time of day and weekday
Confirm settings
* Needs to be configured by your HVAC installer
** Needs to be enabled via parameter P02
Change room temperature
+ / –
Press + or – to increase or decrease the current room temperature setpoint for
Comfort mode. The thermostat changes to Comfort
.
The setting range is 5...40 °C, unless limited by parameters P09 and P10.
Adjust fan speed / fan mode
Press the button until you reach the desired fan mode.
In Auto mode, the thermostat automatically selects the fan speed based on setpoint and actual room temperature. The fan continues to run at low speed
(factory setting) after the room temperature reaches the setpoint .
In manual mode, the fan always runs at the speed that you select:
Low fan speed
Medium fan speed
High fan speed
For a single-speed fan, you can change the mode between and .
Change thermostat operating
Press operating mode button
to change the operating mode display.
In protection mode, the plant stops operating. However, if the room temperature
drops below 8 °C, heating is switched on to protect the room against frost.
Your HVAC installer can change the frost protection limit and set a heat protection limit as needed:
Changes made by installer: Frost protection: ........... ˚C
Heat protection: ........... ˚C
In Comfort mode, the thermostat maintains the room temperature on the setpoint which can be readjusted using the + and – buttons.
In Energy Saving mode, the room temperature is maintained at a lower or higher
setpoint, thus saving energy and money.
Adjust parameters P11 and P12 to change the preselected setpoints.
The thermostat can be set to Energy Saving mode either by pressing the operating mode button if enabled (P02 = 2), or via an external signal (switch) such
as window contact, keycard or presence detector.
In Auto timer mode, the thermostat automatically switches between Comfort
and Energy Saving mode according to the time schedule.
Change from heating to cooling mode
/
Changeover between cooling and heating is either automatic using a heating /
cooling changeover sensor or a remote changeover switch, or manual by
pressing the operating mode button
. No changeover is possible if the
thermostat is configured for cooling only or heating only, (see parameter P01).
Display for automatic changeover or heating only / cooling only:
Heating valve is open
Cooling valve is open
Display for manual changeover:
Thermostat is in heating mode
Thermostat is in cooling mode
CE1B3076.2en / 25 Feb 2010 Subject to change Siemens Building Technologies
Setting time of day and weekday
+ –
24h 12 h
+ –
1. Keep the
button pressed until the time digits start to flash.
Press + or – to set the time of day.
If the current time is in 24-hour format and you wish to change to the 12-hour format,
press + passing 23:59 or press – passing 00:00.
Back to 24-hour format: same procedure with 11.59 PM.
2. Confirm the time of day by pressing
and the weekday indicator starts to flash.
3. Press + or – to set the current weekday.
4. Confirm the current weekday by pressing
.
Set time schedules
Ax
+ –
+ –
+ –
To adjust the time schedule, keep the
button pressed for 3 seconds to go to the timer
setting mode.
This mode is indicated by displaying Ax (x= auto timer 1...8) and the time flashing.
For each timer, proceed as follows:
1. The
and symbols are displayed. Press + or – to adjust the comfort mode start
time and confirm by pressing
.
2. The
and symbols are displayed. Press + or – to adjust the comfort mode end
time / energy saving start time and confirm by pressing
.
3. Symbol
will flash. Press + or – to select or deselect each day and advance to the
next day.
4. Press
to confirm the settings for the actual timer and advance to the next timer.
The thermostat will leave the timer setting mode if no button is pressed within 20
seconds. All changes made after the last press of the
button will not be saved.
View the timer settings
Press the
button to sequentially review the 8 auto timers.
Reload default timer settings
+ – /
1. Set the thermostat to protectio n mode
.
2. Press + and – simultaneously for 3 seconds. Release and, within 2 seconds, press
2 times
Days Thermostat is in Comfort mode
Mo (1) – Fr (5) 6:30 – 8:30 (A1) 17:30 – 22:30 (A2)
Sa (6) 8:00 – 23:00 (A3)
Su (7) 8:00 – 22:30 (A4)
Default
settings
– In the remaining time thermostat is in energy saving mode.
– Timers A5…A8 are free, no default settings.
Button lock
Press operating mode button
for 5 seconds to lock or unlock the buttons if manual
button lock is configured (parameter P14 = 2).
The thermostat automatically locks the buttons 30 seconds after the last adjustment if
"Auto lock" is configured (P14 = 1).
The key symbol
indicates locked buttons.
Reminder to clean filters and for external faults
FIL *
This message reminds you to clean your HVAC equipment filters .
It is displayed after ………… “fan operating hours” and disappears when the thermostat
is set to Protection (
).
* Needs to be configured by your HVAC installer
Note: Energy saving mode
The energy saving setpoints are factory-set to 15 °C for heating and 30 °C for co oling.
Use parameters P11 and P12 to adjust the values.
Important: You can set these setpoints to OFF; the thermostat then is inactive, i.e. no p rotective heating or cooling function.
Risk of frost!
Commissioning
You can adjust a number of control parameters to adapt the thermostat to your system and optimize contro l performance. You can do this during
operation via the buttons on the thermostat.
Control parameters
Proceed as follows to change the most important c ontrol parameters:
(Your HVAC installer can set additional parameters)
+ / – 1. Press the – and + buttons simultaneously at least 3 seconds.
Release, and within 2 seconds, press + again for 3 seconds. "P01" is displayed.
2. Repeatedly press the + or – button to select the required parameter.
P01 P02 P08 P14
+-+
--
+
3171z99
End
-
+
P13
+-
3. Press + and – simultaneously. The current value of the selected parameter begins to flash, allo wing you to change the value by
repeatedly pressing + or –.
4. The next parameter is displayed when you press + and – again simultaneously.
5. Repeat steps 2 to 4 to display and change additional parameters.
6. Press + or – until “End” is displayed, and then press + and – simultaneously to save the change and exit parameter entry mode.
10 seconds after the last display or setting, all changes are saved and the thermo stat will leave parameter setting mode.
Parameter
Description
Factory setting Setting range Adj
P01 Control sequence
2-pipe…: [0…3]
1 (Cooling only)
4-pipe:. [2…4]
4 (Heating & cooling)
0 = Heating only
1 = Cooling only
2 = Manual heating or cooling
3 = Auto changeover
4 = Heating & cooling
P02 Mode selection by user via operating mode button 1 (Comfort,
Protection)
1 = Comfort, Protection
2 = Comfort, Energy Saving,
Protection
P04 Selection of °C or °F °C 0 = °C
1 = °F
P05 Sensor calibration 0.0 °C – 3 ... +3 °C
P06 Standard temperature display 0 (Room temp.) 0 = Room temperature
1 = Setpoint
P08 Comfort basic setpoint 21 °C 5 ... 40 °C
P09 Minimum setpoint limitation in Comfort (WminComf) 5 °C 5 ... 40 °C
P10 Maximum setpoint limitation in Comfort (WmaxComf) 35 °C 5 ... 40 °C
P11 Setpoint of heating in Energy Saving (WheatEco) 15 °C OFF, 5 °C…WcoolEco
P12 Setpoint of cooling in Energy Saving (Wco olEco) 30 °C OFF, WheatEco…40°C
P13 *** Electrical heater in cooling mode ON OFF = disabled
ON = enabled
P14 Button lock
(Press operating mode button
for 7 seconds to lock or unlock
the buttons)
0 (Disabled) 0 = Disabled
1 = Auto lock
2 = Manual lock
*** P ar am et er P1 3 i s o nl y d i s pl ay ed fo r a pp li ca ti on "2 -p i pe wi th el h e at er ".
All temperature settings in increments of 0.5 °C.
Please record all changes you make!
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