Siemens RDF310.2/MM Operating Instructions Manual

CB1B3066en / 2015-01-28 Subject to change Siemens Building Technologies

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Operating Instructions RDF310.2/MM

RDF310.2/MM – the thermostat that allows you to set the ideal room tempe rature you want. The thermo stat provides both
comfort mode and protection mode.
The fan operates either in automatic mode or at the selected speed when using manual mode. You can either rely on the
factory settings or make adjustments that suit your individual nee ds.

Are your rooms too warm or too cold?

+ / -

Only applicable in Comfort mode.
Pressing the +or – button to increase or decrease the current room temperature setpoint for

Comfort mode in increments of 1.0 °C. The setting range is from 5...40 °C, unless it is limited
by parameters P05 and P06.

Do you want to set your controller to protection mode?

Press the button and the symbol shows, indicating that protection mode is selected.
In protection mode

, the controller maintains the lower setpoint of heating for frost
protection via parameter P03 or the higher setpoint of cooling for moldy resistance according
to parameter P04.

Important:

If the setpoint of protection is set to OFF,the thermostat will not be activated in protection
mode.

Risk of frost!

Do you want to change the fan mode?

AUTO

Press the button until you have selected the desired fan mode.
In automatic mode, the fan speed is automatically selected by the controller and depends on

the setpoint and the actual room temperature. When the room temperature has reached the
setpoint, the fan either remains in fan speed low (factory setting) or switches off (parameter
P21).

In manual mode the fan operates independently and always runs at the same speed:
Low, medium or high.
The actual fan speed is indicated by the number of fan symbols.

Low fan speed
Medium fan speed
High fan speed

Do you want to change from heating to cooling mode?

/

When pressing the button, the controller changes from heating to cooling or vice versa.
If the controller is commissioned cooling only or heating only, no changeover is possible

(please see parameter P22: factory setting manual H/C changeover)

Do you want to calibrate the displayed room temperature?

If the displayed room temperature does not match the actual temperature, the temperature sensor can be
calibrated by modifying parameter P07.

Proceed as described under “Changing the control parameters” and follow steps 1 through 3
to select parameter P07.

In step 4, modify the displayed room temperature to match the actual temperature.
Each pressing of the + or - button changes the temperature in increments of 0.5 °C and up to

a range of ±3 °C.
In step 7, the calibration is automatically stored 10 seconds after the last readjustment.

Display

Operation and Settings

Low fan speed
Medium fan speed

High fan speed

AUTO Auto Automatic fan

Cooling mode

Heating mode

Comfort mode

Protection mode

Measured room temperature,
setpoints and parameters

Actual room
temperature symbol

Heating/cooling
changeover button

to change manually between
heating and coo ling mode

Button for changing of
fan operating and

protection mode

- Protection (

)

- Automatic fan speed

(AUTO

)

- Manual fan speed

(

)

Colder / Warmer

Setting the temperature setpoints

Selectable temperature unit

CB1B3066en / 2015-01-28 Subject to change Siemens Building Technologies

Changing the control parameters

To optimize the control performance, you can use local HMI to adjust a number of control parameters. Proceed as follows to change the
control parameters (see the table of “Commissioning by qualified HVAC staff

” for factory settings):

+ / -
+ / -

+ / -

+ / -

1. Set the thermostat to protection mode .

2. Press and hold down the + and – buttons simultaneously for 3 seconds. Release them and,

within 2 seconds, press and hold down the + button for 3 seconds. The display shows P03.

3. Select the required parameter by pres sing the + or – button as follows:

4. Press the + and – buttons simultaneously. The current value of the selected parameter displays on the screen.
Press the + or -.button to change the value.

5. You can either press the + and - buttons simultaneously to confirm the change, or wait

for 5 seconds to have the change saved automatically.

6. Repeat step 3 through 5 to change more parameters.

7. 10 seconds after the last display, all changes are saved and it returns to protection mode.

8. Press the

button to switch to Comfort mode .

Commissioning (by qualified HVAC staff)

Para-

meter

Description

Factory
setting

Setting range

Adj.!

P03

Setpoint of heating in protection (Wheat

Stb

)

8 °C OFF, 5 °C…Wcool

Stb

P04

Setpoint of cooling in protection (Wcool

Stb

)

OFF OFF, Wheat

Stb

…40 °C

P05 Minimum setpoint limitation in Comfort mode (Wmin

Norm

) 5 °C 5 °C…Wmax

Norm

P06 Maximum setpoint limitation Comfort mode (Wm ax

Norm

) 35 °C Wmin

Norm

…40 °C
P07 Sensor calibration 0 K -3…3 K
P08 Switching differential heating SDH 1 K 0.5…4 K
P09 Switching differential cooling SDC 1 K 0.5…4 K
P14 Dwelling time of auto fan s peeds 2 min. 1…5 minutes
P17 Selec tion of °C or °F °C °C or °F

P18 Display of room temperature or setpoint ON

OFF: Setpoint
ON: Room temperature

P21 Fan control in normal operation (Comfort mode) ON

OFF in dead zone
ON in dead zone

P22 Heating/cooling mode

3:Manual
H/C

changeover

0: Heating only
1: Cooling only
3: Manual H/C changeover

! Please record all changes you make.

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