RDD50.1
Operating Instructions
Room thermostat for heating system
Selection of operation modes (Comfort mode/ Economy mode)
The thermostat provides the option of selecting Comfort mode, Economy mode. The modes can be changed
manually via operating
Energy saving tips without sacrificing comfort
•
Use Economy mode during long periods of no occupancy and during summer period.
Change temporary temperature setpoints
1)
Press mode to switch between Comfort
+
–
2)
Press the
or
3)
For permanent temperature setpoint, adjustment is made via parameter settings.
Change batteries
Thermostat uses two alkaline batteries type AAA. Once the
batteries are inserted in the battery compartment, all symbols
appear on the display for about 3 seconds.
is displayed when the battery is low. Please replace the old
ones with two new type AAA alkaline batteries.
Changing parameters
If you want to change control parameters, proceed as follows:
+, -, mode
1)
Press
2)
Select the required parameter by pressing
mode
3)
Press button
4)
The value can be changed by pressing + or
mode
5)
Press button
6)
15 seconds later, all values are saved and automatically exit.
If you wish to adjust additional parameters, repeat steps 2 to 5.
Parameter list
Parameter no.
Parameter name
P01
Sensor calibration
P02
Permanent Comfort setpoint
P05
Permanent Economy
setpoint
P09
Reload factory setting
(Reset)
P10
Software version
Issued by
Siemens Switzerland Ltd
Smart Infrastructure
Global Headquarters
Theilerstrasse 1a
CH-6300 Zug
Tel. +41 58 724 2424
www.siemens.com/buildingtechnologies
Siemens Smart Infrastructure
2022-03-29
mode
button.
Comfort mode
Use this option when you want to maintain the Comfort temperature permanently.
Economy mode
(16 º C). Use this option when you want to maintain the Economy temperature
permanently, e.g. during the summer period without heating.
mode
Press the
After selecting a mode, the system confirms and exits automatically in 5 seconds.
Comfort Mode corresponds to occupancy periods where you want to maintain the
Comfort temperature.
Economy mode corresponds to no occupancy periods and also period when you want
to maintain the Economy temperature, e.g., during the nights.
button to adjust the setpoint temporarily.
simultaneously for at least 5 seconds. Release them, then the display shows P01.
. The current value of the selected parameter starts blinking.
to confirm the adjusted value.
Technical specifications and availability subject to change without notice.
Push buttons:
MODE
Selection of operating modes:
Comfort mode
Economy mode
Display
Low battery
Comfort mode
Temperature
is a permanent (24 h) selection of the Comfort setpoint (20 º C).
is a permanent (24 h) selection of the Economy setpoint
button to switch between Comfort
and Economy
setpoint.
Characteristics
Batteries
Setpoint Range Switching
Capacity of Relay
Voltage
Current
Norms and standards
+
–.
or
–.
Default value
0 º C
20 º C
16 º C
OFF
Display software version
number only
A5W00231884A_AA
+
Increase value
-
Decrease value
Boiler, pump or
heater activated
Economy mode
Economy
.
2 x 1.5 V, AAA
4...35 °C
AC 24...250 V
0.1...5 (2) A
Setting range
-3.0 º C ~3.0 º C
(step:0.5 º C )
4.0 º C ~ 35.0 º C
(step: 0.5 º C )
4.0 º C ~ 35.0 º C
(step: 0.5 º C )
ON: Enable reload;
OFF: Disable reload;
No adjustment
© Siemens Switzerland Ltd, 2022
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