Siemens RDD100.1DHW Operating Instructions Manual

CB1B1421en_01 / 2013-03-07 Subject to alteration Siemens Building Technologies

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Operating Instructions RDD100.1DHW

RDD100.1DHW is a room thermostat that allows you to set the ideal room temperature at the time you
want. In addition, it offers independent control of DHW (Domestic Hot Water).

1. Display

Indicating that batteries need to be replaced
Comfort mode
Economy mode

Frost protection
Display of room temperature, setpoint, etc.

F

Room temperature in degrees Fahrenheit

C

Room temperature in degrees Celsius
Button lock activated

Heating ON
DHW ON
Current room temperature

2. Change operating mode

3. Decrease value

4. Increase value

5. DHW ON/OFF

6. Battery holder

Do you want to change the operating mode?

!

The thermostat provides Comfort mode ,
Economy mode . Changeover between the
operating modes can be made manually by

pressing .
Comfort mode is the permanent (24 h) selection

of Comfort. Select this mode to maintain Comfort
temperature permanently. It is used during
occupancy periods, for example.

Economy mode is the permanent (24 h)
selection of Economy. Select this mode to
maintain the Economy temperature permanently.
It is used during non-occupancy periods, for
example at night.

Note:
Frost protection is a function always active in

the background. As soon the room temperature
falls below 5 ºC, the unit automatically activates

the heating .

Energy saving tips without sacrificing

comfort

• Use Economy mode for long periods of non-occupancy

Do you want to switch on DHW heating?

• Press to switch on DHW heating

• While DHW heating is switched on, the

symbol is displayed

• Press again; DHW heating is switched

off and the symbol disappears

DHW can also be switched on/off while frost
protection is active.

CB1B1421en_01 / 2013-03-07 Subject to alteration Siemens Building Technologies

Are your rooms too warm/too cold?

+

–

Press + or – to increase or decrease the room
temperature setpoint in increments of 0.5 °C /
1 °F. Proceed as follows:

• Press + or – to adjust the setpoint

temporarily.
Press or to save the value or wait

for the program to exit automatically.

• To permanently modify the temperature
setpoints, use parameters P05 and P07.
To lock the setpoints, use parameters P06
and P08.

Does symbol appear on the display?
(Only with battery-powered version)

Symbol is displayed when the batteries are low.
Replace them with 2 new alkaline batteries type AAA.
Proceed as follows:

• Get 2 new alkaline batteries type AAA

• Remove the battery holder, then the batteries, insert

the new batteries and, within 1.5 minutes, replace the
battery holder

• Ensure the exhausted batteries are disposed of
correctly, in compliance with environmental
requirements

Do you want to lock the buttons?

Press and hold for at least 7 seconds to
activate a button lock. Repeat to unlock.

The unit operates normally when the buttons are
locked, but no changes are possible while the
buttons are locked.

Do you want to change parameters?

+

–

If you want to change control parameters,
proceed as follows:

• Press + and – simultaneously for 5 seconds

• Release them and parameter "P02" is

displayed on the bottom segment

• Press + or – to scroll to the parameter that

needs to be adjusted

• Press to select this parameter

• Press + or – to adjust the value

• Press to confirm the adjusted value

• Select and modify other parameters

• Press to exit the parameters without

saving or wait for the program to exit
automatically

Parameter list

Parameter
no.

Description Setting range (default)

P02 Selection of °C

or °F

1 = °C (default)
2 = °F

P03 Standard

temperature
display

1 = room temperature
(default)

2 = setpoint

P04 Temperature

sensor
calibration

-3…3 °C
Step 0.5 °C
(-6…6 °F, step 1 °F)
Default: 0 °C

P05 Comfort

setpoint

5…35 °C, step 0.5 °C
(41…95 °F, step 1 °F)
Default: 20 °C, 68 °F

P06 Comfort

setpoint lock

0 = OFF (default)
1 = ON –> locked according

to setting in P05

P07 Economy

setpoint

5…35 °C, step 0.5 °C
(41…95 °F, step 1 °F)
Default: 16 °C, 61 °F

P08 Economy

setpoint lock

0 = OFF (default)
1 = ON –> locked according

to setting in P07

P09 Buzzer 0 = OFF

1 = ON (default)

P10 Show frost

protection icon

0 = OFF (default)
1 = ON

P21 Button

scanning rate
for the
capacitive
buttons

Note: a shorter
scanning rate
means shorter
battery life.

0.2 = 0.25 s

0.5 = 0.5 s

1.0 = 1.0 s (default)

1.5 = 1.5 s

P22 Reload factory

settings

0 = OFF (default)
1 = reload

P23 Software

version
information

No adjustment possible