Siemens RDF210 User manual

3058
RDF210, RDF210.2, RDF210/IR, RDF210.2/IR
Room Temperature
Controllers with LCD
with 7-day time program RDF210…
for 2-pipe fan coil units
for use with compressors in DX type equipment
Output for on / off valve actuator or 1-stage compressor
Operating modes: Normal operation, Auto Timer (energy saving) and Standby
3-speed fan control: Automatic or manual
8 programmable timers
Adjustable commissioning and control parameters
Optional display of room temperature or setpoint
Minimum and maximum setpoint limitation
Operating voltage AC 230 V
Additional features of RDF210
Automatic heating / cooling changeover
Input for heating / cooling changeover or return air temperature sensor
Additional features of RDF210.2
Manual heating / cooling changeover
Optional
Infrared remote control (RDF210/IR, RDF210.2/IR)
N3058en
10.01.2006
Building Technologies
HVAC Products

Use
For controlling the room temperature in individual rooms and zones that are
•heated or cooled with 2-pipe fan coil units
•cooled with a single compressor in DX type equipment
The controller controls
•a 3-speed fan
•either a valve actuator in a 2-pipe system, or
•a 1-stage compressor in DX type equipment
Suitable for use in systems with
•automatic heating / cooling changeover (RDF210)
•continuous heating or cooling mode (RDF210)
•manual heating / cooling changeover (RDF2110.2)
Functions
•Changeover between heating and cooling mode is either automatic by a QAH11.1
changeover cable temperature sensor or manually
•Maintenance of room temperature either with integrated temperature sensor or ex-
ternal room / return air temperature sensor (only with RDF210)
•Selection of operating mode with the operating mode button
AUTO or on the
controller
•8 programmable timers for changing over between Normal operation and Energy
Saving mode
•3-speed fan control (automatic or manual)
•Output for 2-position (on / off) valve actuator or 1-stage compressor
•Optional with infrared remote control (only with RDF210…/IR)
Controller
Temperature control The controller acquires the room temperature via its built-in sensor and maintains the
setpoint by delivering 2-position valve control commands or compressor output com-
mands. With the RDF210, an external room temperature sensor (QAA32) or external
return air temperature sensor (QAH11.1) can be used instead.
The switching differential is 2 K in heating mode and 1 K in cooling mode (adjustable
via parameters P08 and P09).
Display The display shows the acquired room / return air temperature or the setpoint of the
current operating mode. This can be selected via parameter P18. Factory setting is
display of the current room temperature.
The heating and cooling symbols on the display show the status of the fan coil.
This means that the symbols are also shown while the controller operates in the neutral
zone.
If required, room temperature and setpoint can also be displayed in °F in place of °C by
changing parameter P17.
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Operating modes
The following operating modes are available:
Normal operation In Normal operation, the controller maintains the setpoint, which can be adjusted via
the buttons. The fan can be set to automatic or manual fan speed: Low, medium
or high.
The setpoint setting range can be limited to a minimum (P05) and maximum (P06). This
helps prevent the waste of energy, thus saving costs.
Tip!
In Auto Timer mode AUTO, the controller will automatically change over between Normal
operation and Energy Saving mode according to the 8 preprogrammed timers. The
display shows the Auto Timer mode symbol AUTO and the symbol of the operating mode
currently maintained, either Normal operation or Energy Saving mode .
The setpoints of Energy Saving mode can be adjusted via control parameters
P01 and P02.
The default fan speed in Auto Timer mode is automatic fan.
Auto Timer mode
Energy Saving mode
Standby When the controller is in Standby mode , the relevant setpoints of heating or cooling
are maintained. These setpoints can be adjusted via control parameters P03 and P04.
Factory setting of both setpoints is OFF, which means that the controller is not acti-
vated when in Standby mode.
To avoid damage due to moisture in very warm and humid climatic zones resulting from
lack of air circulation in Energy Saving mode, the fan can be kept running all the time
(e.g. in apartments or shops during unoccupied periods), when setting parameter P20
“ON in dead zone”. In this case, the fan keeps running at minimum fan speed 1.
Avoiding damage
due to moisture
Control sequences
Used in conjunction with a valve, either for heating / cooling with changeover, heating
only or cooling only.
Water-based fan coil
application
Used in conjunction with a 1-stage compressor for cooling only or heating only.
Compressor based
application
Heating mode Cooling mode
½ SDH
1
0
½ SDH
w
Y
11
3058D01
T[°C]
½ SDC
1
0
½ SDC
w
Y
11
3058D02
T[°C]
T[°C] Room temperature SDH Switching differential “Heating”
W Room temperature setpoint SDC Switching differential “Cooling”
Y11 Control output “Valve” or “Compressor”
The valve or compressor receives the OPEN command via control output Y11 when
ON
1. the acquired room temperature lies by half the switching differential below the set-
point (heating mode) or above the setpoint (cooling mode), and
2. control output Y11 was not energized for more than the “Minimum output off time”
(factory setting 1 minute, adjustable via parameter P16)
The valve or compressor receives the CLOSE command via control output Y11 when
OFF
1. the acquired room temperature lies by half the switching differential above the set-
point (heating mode) or below the setpoint (cooling mode), and
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2. control output Y11 was energized for more than the “Minimum output on time”;
(factory setting 1 minute, adjustable by parameter P15)
Note: Control output Y12 delivers a control command which is inverted to the control
command at output Y11 and which can be used for normally open valves.
Heating / cooling
mode With the RDF210, the changeover between cooling and heating takes place either
automatically via a heating / cooling changeover sensor or a remote changeover
switch. If the controller was set to ”Cooling only” or ”Heating only”,changeover will not
be possible (parameter P22, factory setting ”Cooling only”).
With the RDF210.2, when pressing the heating / cooling changeover button , the
controller will change from heating to cooling, or vice versa.
Minimum output
on time / off time Y11 The minimum output on time and off time of Y11 can be adjusted from 1…10 minutes
via parameters P15 and P16. Factory setting is 1 minute. In this case, any readjustment
of the setpoint or of heating / cooling mode changeover will be used immediately for
computing the output status and output Y11 may not hold the minimum on / off time of
1 minute.
If parameter P15 or P16 is set to a level above 1 minute, the minimum on / off time of
Y11 will be maintained as set, even if the setpoint or changeover mode has been read-
justed.
Fan operation
The fan operates either in automatic mode or at the selected speed when using manual
mode. In automatic mode, the fan speed depends on the setpoint and the current room
temperature. When the room temperature reaches the setpoint, the control valve will
close and the fan switch off: Temperature-dependent fan control (see diagram below).
The individual switching differentials of the fan speeds can be adjusted via control pa-
rameters P08 – P13.
Heating mode Cooling mode
W
SDH
SDHSDH2SDH3
Valve
Fan
W
SDC
SDC3SDC2SDC
Valve
Fan
Y11Y11
Temp
Temp
Temp
Temp
Q3
Q2
Q1
Q3
Q2
Q1
3058D03
If desired, fan control can be set to ”Temperature-independent”, which means that ven-
tilation is always on, even within the dead zone, using at least fan speed 1. This can be
selected individually for Normal operation using parameter P21 and for Energy Saving
mode using parameter P20 (also refer to “Avoiding damage due to moisture”).
Ventilation
always on
In automatic mode, a dwelling time of 2 minutes (factory setting) is active. The fan
maintains that speed for at least 2 minutes before it switches to the next speed. This
dwelling time can be adjusted from 1…5 minutes using parameter P14.
Dwelling time
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Fan start Whenever the fan starts from standstill, it starts with speed 3 for 1 second in order to
guarantee a safe fan motor start (to overcome inertia and friction)
Fan in Auto Timer
mode In Auto Timer mode, the default fan mode is automatic. The fan mode can be changed
to manual fan speed. With each changeover from Normal operation to Energy Saving
mode, or vice versa, the fan will return to default mode automatic.
Auto Timer
The controller provides an Auto Timer mode with 8 programmable timers. In this mode,
the controller will automatically change over between Normal operation and Energy
Saving mode according to the preprogrammed timers.
Auto Timer during Normal operation Auto Timer during Energy Saving mode
oC
1
AUTO
oC
1
AUTO
Setting the timers Each timer has a Normal operation start time and a Normal operation end time which
can be applied to several weekdays.
To adjust the time schedule, keep the button depressed for 3 seconds to go to
the programmable timer setting mode.
This mode is indicated by displaying Ax (x= auto timer 1...8) and the time xx:xx flash-
ing.
For each auto timer, proceed as follows:
1. The and symbols are displayed. Press or to adjust the Normal opera-
tion start time and confirm by pressing .
2. The and symbols are displayed. Press or to adjust the Normal operation
end time or Energy Saving start time respectively and confirm by pressing .
3. Symbol
1will flash. Press or to select or deselect each day and advance to
the next day. Confirm setting for actual timer by pressing and advance to t
next timer.
he
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The controller will leave the programmable timer setting mode if no button is pressed
within 20 seconds. All changes made after the last press of button will not be
saved.
Press the button to sequentially review the 8 timers.
View the timers
Default timer setting Timers A1…A4 have the following default setting:
Day/s Time when controller is in Normal operation
Mo (1) – Fr (5) 06:30 – 08:30 (A1) 17:30 – 22:30 (A2)
Sa (6) 08:00 – 23:00 (A3)
Su (7) 08:00 – 22:30 (A4)
- During the remaining time, controller is in Energy Saving mode
- Timers A5…A8 are free, no default setting
The setting of these timers can be changed to suit individual needs. The default setting
can be reloaded any time:
Reload default timer
setting
1. Set the controller to Standby .
2. Press and simultaneously for 3 seconds. Release them and, within 2 seconds,
press 2 times .
Then, the display will show “8888“ during the reloading process.
In case 2, or when several timer sequences overlap, the resulting output is the OR
combination of the normal operating mode time of all timers.
Overlapping of timer
sequences
A1=09:00-22:00
A2=12:00-20:00
09:00 12:00 20:00 22:00
3058D04
Resulting output = 09:00-
22:00
The 7day-time clock supports the 12-hour and 24-hour format. The format is chosen
during setting of the time clock as follows:
7day-time clock
1. Keep the button depressed until the time digits start to flash and then press or
to set the time of day. If the current time is the 24-hour format and you wish to
change to the 12-hour format, press passing 23:59 or press passing 00:00.
Vice versa back to the 24-hour format.
Setting the time clock
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 .
Power failure In case of a power failure, the clock will stop, but its last running time will be stored.
This time information will be reloaded and start running after a power up. The clock will
flash to indicate that there was a power failure until the time will be confirmed by press-
ing or readjusted by folowing the above procedure.
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External sensor input B1-M
With the RDF210, a return air / external room temperature sensor or heating / cooling
changeover sensor can be connected to terminal B1-M. The function of this sensor
input is determined by parameter P22.
Sensor input B1-M is not galvanically separated from the AC 230 V mains supply.
Therefore, only a cable temperature sensor and wiring with sufficient insulation must be
used.
When P22 is set to “Automatic H/C changeover”, the sensor input acts to ensure auto-
matic heating / cooling changeover. The water temperature acquired by the changeover
sensor (QAH11.1 + ARG86.3) is used to switch from heating to cooling mode, or vice
versa. When the water temperature lies above 28 °C (parameter P24), the controller
switches to heating mode; below 16 °C (parameter P23), it switches to cooling mode. If,
immediately after switching on, the water temperature lies between the 2 changeover
points, the controller will start in heating mode. The water temperature is acquired at
30-second intervals and the operating state is updated.
Automatic heating /
cooling changeover
Automatic H/C changeover
CM
HM
M
T
W
[°C]
3021D03
16 28
M Operating mode CM Cooling mode
TwWater temperature HM Heating mode
Remote heating /
cooling changeover The QAH11.1 cable temperature sensor for automatic heating / cooling changeover can
be replaced by an external switch (suited for mains voltage) for manual remote change-
over:
3058Z03
B1
MTB1
M
QAH11.1
T °C
Contact open Æheating mode
Contact closed Æcooling mode
With parameter P99 (diagnostic value), automatic heating / cooling changeover can be
checked.
External room or
return air temperature
sensor
When parameter P22 is set to “Cooling only” or “Heating only”, sensor input B1-M can
be used to connect an external room temperature (QAA32) or a return air temperature
sensor (QAH11.1). Changeover is automatic if a sensor is detected at the sensor input.
With parameter P98 (diagnostic value), the sensor status can be checked.
Summary
B1-M and P22
The following table summarizes the relation between parameter P22, external sensor
B1-M and variables which the controller uses for maintaining the temperature:
Parameter
P22 Variables: The controller…. No sensor at B1-M QAH11.1/QAA32 at B1-M
is in H/C mode Heating Heating
Heating only controls according Internal sensor Sensor at B1
is in H/C mode Cooling Cooling
Cooling only controls according to Internal sensor Sensor at B1
is in H/C mode Heating depending on the tempera-
ture from sensor B1-M
Automatic
H/C change-
over controls according to Internal sensor Internal sensor
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Error handling
When the room temperature is out of the measuring range, which means above 49 °C
or below 0 °°C, the display shows the limiting temperature in flashing figures, e.g. “0 °C”
or “49 °C”.
If the current setpoint is not OFF (see parameters 1-4) and the controller is in heating
mode, and the temperature is below 0 °C, output Y11 will be energized. In all other
cases, output Y11 will be deenergized. When the temperature returns to the measuring
range, the controller will resume Normal operation.
Temperature out
of range
In case of an external sensor failure (short-circuit or open-circuit), the controller will
immediately switch back to the internal sensor to ensure control.
External sensor
failure
Should both the external and internal sensor fail, the display will flash “Err” to call the
user‘s attention.
Infrared remote control
The RDF210/IR and RDF210.2/IR have an infrared receiver built in. Together with the
IRA210 infrared remote control, the following operations can be performed from a re-
mote location:
•Selection of operating mode: Standby, Normal operation or Auto Timer
•Adjustment of setpoint in Normal operation
•Selection of fan mode: Automatic or manual fan speed
Using parameter P25, infrared remote control can be disabled.
Control parameters
With the RDF210 and RDF210.2, a number of control parameters can be readjusted to
optimize the control performance. These parameters can also be set during operation
without opening the unit. In the event of a power failure, all control parameter settings
will be maintained.
Parameter settings The parameters can be changed as follows:
1. Set the controller to Standby .
2. Press buttons and simultaneously for 3 seconds. Release them and,
within 2 seconds, press button again for 3 seconds. Then, the display will
show “P01“.
3. Select the required parameter by repeatedly pressing buttons and :
P01 P02 P22 P98
+-+
--
+
3057z03
P99 -
+
-P25 +-
4. By pressing buttons and simultaneously, the current value of the selected
parameter appears, which can be changed by repeatedly pressing buttons
or .
5. By pressing buttons and simultaneously again or 5 seconds after the last
press of a button, the last parameter will be displayed again.
6. If you wish to display and change additional parameters, repeat steps 3
through 5.
7. 10 seconds after the last display or setting, all changes will be stored and the
controller returns to Standby.
Note: Parameters not used by the RDF210.2 are not available and cannot be displayed.
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Parameter reset The factory setting of the control parameters can be reloaded as follows:
1. Set the controller to Standby .
2. Press buttons and simultaneously for 3 seconds. Release them and,
within 2 seconds, press operating mode selector button 2 times.
Then, the display will show “888“ during the reloading process.
Control parameters of the RDF210 and RDF210.2
Para-
meter
Meaning Setting range Factory
setting
P01 Setpoint of heating in Energy Saving mode (WheatEco) OFF, 5 °C…WcoolEco 16 °C
P02 Setpoint of cooling in Energy Saving mode (WcoolEco) OFF, WheatEco…40 °C 28 °C
P03 Setpoint of heating in Standby (WheatStb) OFF, 5 °C…WcoolStb OFF
P04 Setpoint of cooling in Standby (WcoolStb) OFF, WheatStb …40 °C OFF
P05 Minimum setpoint limitation in Normal operation (WminComf) 5 °C…WmaxComf 5 °C
P06 Maximum setpoint limitation in Normal operation (WmaxComf) WminComf…40 °C 35 °C
P07 Sensor calibration -3…+3 K 0 K
P08 Switching differential heating mode SDH 0.5…+4K 2 K
P09 Switching differential cooling mode SDC 0.5…+4K 1 K
P10 Switching differential fan speed 2 in heating mode SDH2 0.5…+4K 1 K
P11 Switching differential fan speed 2 in cooling mode SDC2 0.5…+4K 1 K
P12 Switching differential fan speed 3 in heating mode SDH3 0.5…+4K 1 K
P13 Switching differential fan speed 3 in cooling mode SDC3 0.5…+4K 1 K
P14 Dwelling time of auto fan speeds 1…5 minutes 2 min
P15 Minimum output on time (Y11) 1…10 minutes 1 min
P16 Minimum output off time (Y11) 1…10 minutes 1 min
P17 Selection of °C or °F °C or °F °C
P18 Display of temperature or setpoint
OFF: Setpoint
ON: Room (or return air)
temperature
ON
P20 Fan control in Energy Saving mode OFF in dead zone
ON in dead zone OFF
P21 Fan control in Normal operation OFF in dead zone
ON in dead zone OFF
P22 Heating / cooling mode
0: Heating only
1: Cooling only
2: Automatic H/C
changeover
1: Cooling
only1)
P23 Heating / cooling changeover switching point cooling 10…25 °C 16 °C1)
P24 Heating / cooling changeover switching point heating 27…40 °C 28 °C1)
P25 Infrared receiver (only with RDF.../IR) 0: Disabled
1: Enabled 1
P98 Active temperature sensor 0: Internal sensor
1: External sensor
Diagnostic
value
P99 Value of current heating / cooling changeover temperature
reading and indication of current mode
100 = input open Æmode
0…49 °C = cur. temp. value
00 = input bridged Æ
mode
OFF= not commissioned as
automatic H/C changeover
Diagnostic
value1)
1) Not available with RDF210.2
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Type summary
Type reference Features
RDF210 With input for automatic heating / cooling changeover or return air
temperature sensor
RDF210.2 With manual heating / cooling changeover
Without input for sensor
(only available in AP)
RDF210/IR Same as RDF210 plus infrared remote control
RDF210.2/IR Same as RDF210.2 plus infrared remote control
(only available in AP)
Equipment combinations
Type of unit Type reference Data Sheet
Infrared remote control IRA210 -
Cable temperature sensor QAH11.1 1840
Room sensor QAA32 1747
Changeover mounting kit ARG86.3 1840
Electromotoric on / off valve and actuator MVI…/MXI… 4867
Electromotoric on / off actuator SFA21... 4863
Thermal actuator (for radiator valve) STA21... 4893
Thermal actuator (for small valves 2.5 mm) STP21... 4878
Zone valve actuators
(only available in AP, UAE, SA and IN) SUA… 4830
Accessories
Description Type reference
Adapter plate 120 x 120 mm for 4“ x 4“ conduit boxes ARG70
Adapter plate 96 x 120 mm for 2“ x 4“ conduit boxes ARG70.1
Adapter plate for surface wiring 112 x 130 mm ARG70.2
Ordering
When ordering, please give name and type reference:
e.g. room temperature controller RDF210
The IRA210 infrared remote control is to be ordered as separate item
The QAH11.1 can be used as a return air temperature or heating / cooling changeover
sensor. In case it is used as a changeover sensor, the ARG86.3 changeover sensor
mounting kit is to be ordered as a separate item.
Valve actuators are to be ordered as separate items.
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