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Siemens RDX Series Operating Instructions page 2

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Commissioning (by qualified HVAC staff)
Parameter
Setpoint of heating in energy saving mode
P01
(operating mode changeover switch activated)
Setpoint of cooling in energy saving mode
P02
(operating mode changeover switch activated)
Minimum setpoint limitation in normal mode
P03
P04
Maximum setpoint limitation in normal mode
P05
Minimum compressor off-time, outputs Y14, Y24 (heat pump)
P06
Minimum compressor on-time, outputs Y14, Y24 (heat pump)
P07
Auxiliary heater minimum hold time
P08
Fan overrun after auxiliary heater shut down
P09
Sensor calibration
P10
P-band in heating mode
P11
P-band in cooling mode
P12
Setpoint differential between heating and auxiliary heating
P13
Value of current room temperature (only display, no setting)
P14
Active temperature sensor (only display, no setting)
Changing the control parameters
To optimize the control performance, a number of control parameters can be adjusted. This can also be
made during operation without opening the controller.
Do you want to change the control parameters of the heating and / or cooling setpoints in the normal or
energy saving mode? Or do you want to increase / decrease the switching differential in heating and
cooling mode?
Then, proceed as follows:
(For factory settings, see above under "Commissioning)
/
1.
Normal operation mode
2.
Press the + and – buttons simultaneously for a min. of 3 and a max. of 5 seconds.
Release them and within 2 seconds, press the + button again for 3 seconds. The
display will show "P01".
3.
Select the required parameter by repeatedly pressing the + or – button:
4.
Press the + and – buttons simultaneously, the current value of the selected
parameter appears, which can be changed by repeatedly pressing the + or –
button.
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.
CE1B3074en / 28.07.2003
Setting range
OFF, 8...18 °C in increments of 0,5 K
OFF, 24...35 °C in increments of 0,5 K
8... 20 °C in increments of 1 K
21...35 °C in increments of 1 K
1...10 Minutes (in increments of 1 Min.)
1...10 Minutes (in increments of 1 Min.)
1...10 Minutes (in increments of 1 Min.)
30...300 Seconds (in increments of 10 Sec.)
-3...+3 K in increments of 0,5 K
0.5...+4 K in increments of 0,5 K
0.5...+4 K in increments of 0,5 K
0.5...+5 K in increments of 0,5 K
0...49 °C
1: Room temperature sensor active
2: Remote temperature sensor active
Sensor calibration
If the room temperature displayed by the controller does not match with the temperature effectively
measured, the temperature sensor can be recalibrated. For that purpose, parameter P09 must be
changed
Proceed as described under "Changing the control parameters" and follow steps 1 through 3 to
select parameter P09.
With step 4, the room temperature displayed can now be matched to the temperature
effectively measured. Each push of the + or – button changes the temperature by + or – 0.5 °C
up to a maximum of + / - 3 °C. With step 7, the recalibration is automatically stored 10 seconds
after the last readjustment..
DIP-switch setting
DIP-
Function
switch
Operating action of
1
remote ON/OFF switch
2
Auxiliary heat function
Display of
3
temperature/setpoint
Subject to alteration
User setting (Please record all
Factory setting
changes you make)
16 °C
28 °C
8 °C
35 °C
3 Min.
1 Min.
1 Min.
30 Sec.
0 K
2 K
1 K
2 K
-
-
Position ON
Position OFF
(Factory setting)
Changeover activated when
Changeover activated
switch is closed (N.O.)
when switch is open (N.C.)
No auxiliary heater connected
Auxiliary heater connected
Room temperature
Temperature setpoint
Siemens Building Technologies / HVAC Products

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