Siemens RDD10 Series User manual

CE1N3031en

24.09.2003

Siemens Building Technologies

HVAC Products

3031

Room Temperature Controllers

with LCD

RDD10...

for heating systems

2-position control with ON / OFF output for heating

Operating modes: normal operation and energy saving mode

Automatic operating mode change over as an option

Mains-powered AC 230 V (RDD10) or battery-powered DC 3 V (RDD10.1)

Use

The RDD10... is used for the control of the room temperature in heating systems.

Typical applications:

• Apartments

• Commercial spaces

• Schools

For the control of the following pieces of equipment:

• Thermic valves or zone valves

• Gas or oil burners

• Fans

• Pumps

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Functions

The controller acquires the room temperature with its integrated sensor and maintains

the setpoint by delivering control commands. The switching differential is 1 K.

Q14

T[°C]

OFF W

3031D01

T Room temperature

SD Switching differential

W Room temperature setpoint

Q14 Output signal for heating

Operating modes

The RDD10... provides normal operation and, optionally, energy saving mode or OFF.

The difference between normal operation and energy saving mode is only the room

temperature setpoint. The changeover from normal operation to energy saving mode,

and vice versa, is made by pressing a button.

When normal operation is activated, symbol “ “ appears on the display. The setpoint

can be readjusted by pressing buttons +and -.

When energy saving mode is activated, symbol “ “ appears on the display. The set-

point can be readjusted by pressing buttons +and -. When the energy saving set-

point is set to “ 0 ”, the controller is switched off, that is, the RDD10... is not active in

energy saving mode. In that case, symbol “ “ does not appear.

When this function is activated and a manual changeover has been made, the operat-

ing mode will automatically be reset on completion of an adjustable period of time. This

period of time can be adjusted with buttons +and -after pressing the hour glass

button.

The operating action of the reset depends on the setting of the DIL switch, from normal

operation to energy saving mode / OFF, or vice versa. The operating mode can be

manually reset before the delay time has elapsed. When the delay is active, the hour

glass symbols appears on the display.

The digital display shows the actual room temperature and the symbol of the operating

mode currently active. When the heating output is activated, the triangle symbol ap-

pears. When the function “automatic operating mode change over” is activated, the

hour glass symbol is shown.

Display in normal operation Display in energy saving mode

Normal operation

Energy saving mode

or OFF

Automatic operating

mode change over

Display

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Type summary

Type reference Features

RDD10 Mains-powered AC 230 V

RDD10.1 Battery-powered DC 3 V

Ordering

When ordering, please give name and type references, e.g. room temperature con-

troller RDD10.

Valve actuators are to be ordered as separate items.

Equipment combinations

Type of unit Type reference Data sheet

Motoric on/off actuator SFA21... 4863

Thermal actuator (for radiator valve) STA21... 4893

Thermal actuator (for small valve 2,5 mm) STP21... 4878

Accessories

Description Type reference

Adapter plate 120 x 120 mm for 4“ x 4“ conduit boxes ARG70

Adapter plate 96 x 120 mm for 2“ x 4“ conduit boxes ARG70.1

Adapter plate for surface wiring 112x130 mm ARG70.2

Mechanical design

The unit consists of two parts:

• A plastic housing with digital display, which accommodates the electronics, the

operating elements and the built-in room temperatures sensor

• A mounting base

The housing engages in the mounting base and snaps on.

The base carries the screw terminals. The DIP switch is located at the rear of the hous-

ing.

3031Z01

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1 Display of the room temperature, setpoints or operating mode changeover time

2 symbol when actual room temperature is displayed

3 Normal operation

Energy saving mode

4 symbol when displaying the operating mode changeover time or when the oper-

ating mode changeover function is activated

5 heating on

6 symbol indicating that batteries need to be replaced

(only with battery-powered versions)

7 Buttons for adjusting the setpoint and the operating mode changeover time

8 Button for operating mode changeover “Normal operation ↔energy saving

mode”

9 Button for adjusting the operating mode changeover time

10 Battery compartment (only with battery-powered versions)

The required room temperature setpoints for normal operation and energy saving mode

and the operating mode changeover time are adjusted with buttons. Operating mode

changeover can be triggered by pressing a button.

The operating action for the automatic operating mode changeover function is selected

with a DIP switch.

DIP switch

no.

Meaning Position ON Position OFF

1 Operating action of

automatic operating

mode changeover

Automatic operating

mode changeover from

normal operation to en-

ergy saving mode or OFF

Automatic operating

mode change over from

energy saving mode or

OFF to normal operation

Notes

The room temperature controller should be mounted in a location where the air tem-

perature can be measured as accurately as possible without getting adversely affected

by direct solar radiation or other heat or refrigeration sources.

Mounting height is about 1.5 m above the floor.

The unit can be fitted to a recessed conduit box.

• Only authorised staff may open the controller.

Caution: AC 230 V!

• The cables used must satisfy the insulation requirements with regard to mains

potential

When mounting the unit, fix the baseplate first. Then, make the electrical connections

and fit and secure the cover (also refer to Mounting Instructions).

The controller must be mounted on a flat wall and in compliance with local regulations.

Legend

Mounting, installation

and commissioning

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If there are thermostatic radiator valves in the reference room, they must be set to their

fully open position.

The controller is maintenance-free.

If the temperature on the display does not agree with the room temperature effectively

measured, the temperature sensor can be recalibrated. For that purpose, both buttons

+and must be pressed simultaneously for 3 seconds. Then, the temperature

displayed can be changed by a maximum of +/- 3 Kelvin by pressing the +and -

buttons. Five seconds after the last push of a button, the controller will automatically

return to the normal operational statuses.

If the battery symbol appears, the battery power is almost exhausted and the batteries

should be replaced.

Technical data

Operating voltage

• RDD10 at L - N AC 230 V +10/-15 %

• RDD10.1 DC 3 V (2 x 1.5 V AAA Alkaline batteries)

Frequency (RDD10) 50 or 60 Hz

Power consumption (RDD10) 4VA

Battery life (RDD10.1) > 1 years (AAA Alkaline batteries)

Control output Q12 (N.C. contact)

Rating RDD10 (AC 230 V) max. 5 A

Rating RDD10.1 (AC 24...250 V) max. 5(2) A

Control output Q14 (N.O. contact)

Rating RDD10 (AC 230 V) max. 5 A

Rating RDD10.1 (AC 24...250 V) max. 5(2) A

Switching differential SD 1 K

Setpoint setting range 5…35 °C (normal operation)

0 (OFF) and 5…35 °C (energy saving mode)

Increments 0.5 °C

Factory setting normal operation 20 °C

Factory setting energy saving mode 8 °C

Setting range of operating mode

changeover time 0.5…24 h

Increment 0.5 h

Factory setting 0 h (not activated)

Operation to IEC 721-3-3

Climatic conditions class 3K5

Temperature 0…+50 °C

Humidity <95 % r. h.

Transport to IEC 721-3-2

Climatic conditions class 2K3

Temperature -25…+60 °C

Humidity <95 % r. h.

Mechanical conditions class 2M2

Storage to IEC 721-3-1

Climatic conditions class 1K3

Temperature -25…+60 °C

Humidity <95 % r. h.

Maintenance

Sensor calibration

Change of batteries

(only with battery-

powered versions)

Power supply

Control outputs

Functional data

Environmental conditions

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conformity to

EMC directive 89/336/EEC

Low voltage directive 73/23/EEC and 93/68/EEC

N474 C-Tick conformity to

EMC emission standard

AS/NSZ 4251.1:1994

Product standards

Automatic electrical controls for EN 60 730 – 1 and

household and similar use EN 60 730 – 2 - 9

Electromagnetic compatibility

Emissions EN 50 081-1

Immunity EN 50 082-1

Safety class II to EN 60730

Pollution class normal

Degree of protection of housing IP30 to EN 60529

Connection terminals for use solid wires or prepared stranded wires

2 x 1.5 mm2or 1 x 2.5 mm2(min. 0.5 mm2)

Weight 0.20 kg

Colour of housing front white, NCS S 0502-G (RAL9003)

Norms and standards

General

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Connection diagram

3031A01

Q14

Q11

Q12

3031A02

Q14

Q11

Q12

RDD10 RDD10.1

N1 Room temperature controller

Y1 Regulating unit

L, Ln Live, AC 230 V

N Neutral, AC 230 V

Lx Live, AC 24 ... 250 V

Q11, Q12 N.C. contact (for N.O. valves)

Q11, Q14 N.O. contact (for N.C. valves)

Nx Neutral, AC 24 ... 250 V

Application examples

2222S01

2222S02

T T

Room temperature controller with direct

control of a gas-fired wall-hung boiler

Room temperature controller with direct

control of a gas-fired floor-standing boiler

2222S03

Room temperature controller with direct

control of a heating circuit pump (pre-control

by manual mixing valve)

F1 Thermal reset limit thermostat

F2 Safety limit thermostat

M1 Circulating pump

N1 RDD10... room temperatures controller

Y1 3-point valve with manual adjustment

Y2 Magnetic valve

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Siemens Building Technologies Room temperature controllers CE1N3031en

HVAC Products 24.09.2003

Dimensions

119

23,8

3031M01

89,45

3031M02

28 28

2828

26 30

3530

11,8

112,3

Controller

Baseplate

2003 Siemens Building Technologies AG Subject to alteration

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