Bedienungsanleitung Siemens RDX42 (Seite 2 von 2) (Englisch)

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CE1B3074en / 28.07.2003 Subject to alteration Siemens Building Technologies / HVAC Products

Commissioning (by qualified HVAC staff)

Parameter

Setting range

Factory setting

User setting (Please record all

changes you make)

P01

Setpoint of heating in energy saving mode

(operating mode changeover switch activated)

OFF, 8…18 °C in increments of 0,5 K

16 °C

P02

Setpoint of cooling in energy saving mode

(operating mode changeover switch activated)

OFF, 24…35 °C in increments of 0,5 K

28 °C

P03

Minimum setpoint limitation in normal mode 8… 20 °C in increments of 1 K 8 °C

P04

Maximum setpoint limitation in normal mode 21…35 °C in increments of 1 K 35 °C

P05

Minimum compressor off-time, outputs Y14, Y24 (heat pump) 1...10 Minutes (in increments of 1 Min.) 3 Min.

P06

Minimum compressor on-time, outputs Y14, Y24 (heat pump) 1...10 Minutes (in increments of 1 Min.) 1 Min.

P07

Auxiliary heater minimum hold time 1...10 Minutes (in increments of 1 Min.) 1 Min.

P08

Fan overrun after auxiliary heater shut down 30...300 Seconds (in increments of 10 Sec.) 30 Sec.

P09

Sensor calibration -3…+3 K in increments of 0,5 K 0 K

P10

P-band in heating mode 0.5…+4 K in increments of 0,5 K 2 K

P11

P-band in cooling mode 0.5…+4 K in increments of 0,5 K 1 K

P12

Setpoint differential between heating and auxiliary heating 0.5…+5 K in increments of 0,5 K 2 K

P13

Value of current room temperature (only display, no setting) 0…49 °C -

P14

Active temperature sensor (only display, no setting)

1: Room temperature sensor active

2: Remote temperature sensor active

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)

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-

switch

Function

Position ON

(Factory setting)

Position OFF

Operating action of

remote ON/OFF switch

Changeover activated when

switch is closed (N.O.)

Changeover activated

when switch is open (N.C.)

2 Auxiliary heat function No auxiliary heater connected Auxiliary heater connected

Display of

temperature/setpoint

Room temperature Temperature setpoint

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.

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