Siemens RDF20U Installation Instructions

Document No. 129-497
Installation Instructions
May 18, 2011
Economy Mode
Siemens Industry, Inc. Page 5 of 7
If you want to change the factory-set
temperature setpoints (61°F [16°C] for heating
and 82°F [28°C] for cooling), see Changing the
Control Parameters and Commissioning.
Important:
The Economy mode setpoint can be set to 0.
This means OFF so that the controller is not
active in Economy mode and symbol
will not
appear.
CAUTION:
When turned OFF, the controller will not provide
valve control, which could result in freeze
conditions.
4. Press the + and – buttons simultaneously,
to show the current value of the selected
parameter, which can be changed by
repeatedly pressing the + or – button.
5. Press buttons + and – simultaneously
again or wait 5 seconds after the last
press of a button, to display the last
parameter.
6. If you wish to display and change
additional parameters, repeat steps 3
through 5.
7. All changes will be stored 10 seconds after
the last display or setting.
8. Switch to normal operation
with the
operating mode selector.
Changing the Control Parameters
Recalibrating the Sensor
To optimize the control performance, a number of control
parameters can be adjusted. Adjustments can be made
during operation without opening the controller.
If the room temperature displayed by the controller does
not agree with the actual room temperature, the
temperature sensor can be recalibrated by changing
parameter P09.
NOTE: For factory settings, see Commissioning
See 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 actual room
temperature. Each push of the + or – button
changes the temperature by +/– 1°F (0.5°C)
up to a maximum of +/- 5.5°F (3°C).
With step 7, the recalibration is automatically
stored 10 seconds after the last readjustment.
To change the parameters for:
• Setpoints for independent heating and cooling in
Economy mode
• Setpoints for independent heating and cooling in
Standby mode
• Upper and lower limit stops in Normal mode
• Heat/cool changeover points
• Sensor calibration
• Heat/cool switching differentials
• Fan control
• Dead zone between heating and cooling
(RDF30U),
proceed as follows:
1. Set operating mode selector to Standby.
2. Press the + and – buttons simultaneously
for a minimum of 3 seconds and a
maximum 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:
P01 P02 P20 P23
--
3055z01

Siemens RDF20U Specifications

General

Brand	Siemens
Model	RDF20U
Category	Temperature Controller
Language	English