Siemens RDG400 - Manual (Page 28)

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Siemens RDG100…/RDG110…/RDG140.../RDG160… Basic Documentation CE1P3182en
Building Technologies Functions 28 May 2009
4.12 Control parameters
A number of control parameters can be readjusted to optimize 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 are retained.
The control parameters are divided in two levels:
• “Service” level, and
• “Expert” level and "Diagnostics & test"
The “Service” level contains a small set of parameters to set up the thermostat for
the HVAC system and to adjust the user interface. These parameters can usually
be adjusted any time.
Change parameters in the “Expert” level only carefully, as they impact control
performance and functionality of the thermostat.
Change the parameters as follows:
1. Press left + right button simultaneously >3sec, release,
then press right button >3sec
The display shows “P01” (or P02 when P01 is not available).
Continue with Step 2.
1.
Press left button + right button simultaneously >3sec, release,
press left button >3sec,
then rotate rotary knob anti-clockwise min ½ rotation
The display shows “Pxx”.
Continue with Step 2.
2.
Select the required parameter by turning the rotary knob.
3. Press (OK); the current value of the selected parameter starts to flash and
can be changed by turning the rotary knob.
4. Press (OK) to confirm the adjusted value or (Esc) to cancel the change.
5.
If you wish to adjust additional parameters, repeat steps 2 through 4
6. Press (Esc) to leave the parameter mode.
The factory setting for the control parameters can be reloaded via parameter P71,
by changing the value to “ON”, and confirming by pressing the right button.
The display shows “8888” during reload.
Parameter setting
Enter only “Service”
level
Enter “Expert” level
and
"Diagnostics & test"
Adjust parameters
Reset parameters