Siemens RDF110 Bedienungsanleitung

N3057en

2014

-10-28

Building Tech

nologies

3057

RDF110

RDF110.2

RDF110/IR

RDF110.2/IR

Room Temperature

Controllers with LCD

RDF110…

for 2

-pipe fan coil units

for compressors in

DX type equipment

Output for on / off valve actuator or 1-stage compressor

3-speed fan control: Automatic or manual

Adjustable commissioning and control parameters

Optional display of room temperature or setpoint

Minimum and maximum setpoint limitation

Operating voltage AC 230 V

Additional features of RDF110

Automatic heating / cooling changeover

Operating modes: Normal operation, Economy (Energy saving) and Protection

(Standby)

Input for heating / cooling changeover or return air temperature sensor

Potential-free input for operating mode changeover (key card contact, etc.)

Function for avoiding damage resulting from moisture

Additional features of RDF110.2

Manual heating / cooling changeover

Operating modes: Normal operation, Protection (Standby)

Optional

Infrared remote control (RDF110/IR, RDF110.2/IR)

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Use

For controlling the room temperature in individual rooms and zones that are

•heated or cooled with 2-pipe fan coil units

•cooled with a single compressor in DX type equipment

The controller controls

•a 3-speed fan

•either a valve actuator in a 2-pipe system, or

•a 1-stage compressor in DX type equipment

Suitable for use in systems with

•automatic heating / cooling changeover (RDF110)

•continuous heating or cooling mode (RDF110)

•manual heating / cooling changeover (RDF110.2)

Functions

•Changeover between heating and cooling mode is either automatic by a QAH11.1

changeover cable temperature sensor or manually

•Maintenance of room temperature either with integrated temperature sensor or

external room / return air temperature sensor (only with RDF110 and RDF110/IR)

•Selection of operating mode with an external changeover switch (only with

RDF110 and RDF110/IR) or with the operating mode button on the controller

•3-speed fan control (automatic or manual)

•Output for 2-position (on / off) valve actuator or 1-stage compressor

•Optional with infrared remote control (only with RDF110…/IR)

Controller

The controller acquires the room temperature via its built-in sensor and maintains the

setpoint by delivering 2-position valve control commands or compressor output

commands. With the RDF110, an external room temperature sensor (QAA32) or

external return air temperature sensor (QAH11.1) can be used instead.

The switching differential is 2 K in heating mode and 1 K in cooling mode (adjustable

via parameters P08 and P09).

The display shows the acquired room / return air temperature or the setpoint of the

current operating mode. This can be selected via parameter P18. Factory setting is

display of the current room temperature.

The heating and cooling symbols on the display show the status of the fan coil.

This means that the symbols are also shown while the controller operates in the neutral

zone.

If required, room temperature and setpoint can also be displayed in °F in place of °C by

changing parameter P17.

Operating modes

The following operating modes are available:

In Normal operation, the controller maintains the setpoint, which can be adjusted via

the buttons. The fan can be set to automatic or manual fan speed: Low, medium

or high.

The setpoint setting range can be limited to a minimum (P05) and maximum (P06). This

helps prevent the waste of energy, thus saving costs.

Temperature control

Display

Normal operation

Tip!

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Siemens Room Temperature Controllers N3057en

Building Technologies 2014-10-28

When external operating mode changeover is activated, the controller switches to

Economy (Energy saving) mode. In this operating mode, the relevant setpoints of

heating or cooling are maintained. These setpoints can be adjusted via control

parameters P01 and P02. The default fan speed in Economy (Energy saving) mode is

automatic fan.

When the controller is in Protection (Standby) mode , the relevant setpoints of

heating or cooling are maintained. These setpoints can be adjusted via control

parameters P03 and P04. Factory setting of both setpoints is OFF, which means that

the controller is not activated when in Protection (Standby) mode.

To avoid damage due to moisture in very warm and humid climatic zones resulting from

lack of air circulation in Economy (Energy saving) mode, the fan can be kept running all

the time (e.g. in hotel rooms during unoccupied periods), when setting parameter P20

to “ON in dead zone”. In this case, the fan keeps running at minimum fan speed 1.

Control sequences

Used in conjunction with a valve, either for heating / cooling with changeover, heating

only or cooling only.

Used in conjunction with a 1-stage compressor for cooling only or heating only.

Heating mode Cooling mode

T[°C] Room temperature

SDH Switching differential “Heating”

W Room temperature setpoint

SDC Switching differential “Cooling”

Y11 Control output “Valve” or “Compressor”

The valve or compressor receives the OPEN command via control output Y11 when

1. the acquired room temperature lies by half the switching differential below the

setpoint (heating mode) or above the setpoint (cooling mode), and

2. control output Y11 was not energized for more than the “Minimum output off time”

(factory setting 1 minute, adjustable via parameter P16)

The valve or compressor receives the CLOSE command via control output Y11 when

1. the acquired room temperature lies by half the switching differential above the

setpoint (heating mode) or below the setpoint (cooling mode), and

2. control output Y11 was energized for more than the “Minimum output on time”;

(factory setting 1 minute, adjustable by parameter P15)

Control output Y12 delivers a control command which is inverted to the control

command at output Y11 and which can be used for normally open valves.

With the RDF110, the changeover between cooling and heating takes place either

automatically via a heating / cooling changeover sensor or a remote changeover

switch. If the controller was set to ”Cooling only” or ”Heating only”, changeover will not

be possible (parameter P22, factory setting ”Cooling only”).

Economy (Energy

saving) mode

(only with RDF110 and

RDF110/IR)

Protection (Standby)

Avoiding damage

due to moisture

(only with RDF110

and RDF110/IR)

Water-based fan coil

application

Compressor-based

application

OFF

Note:

Heating / cooling

mode

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Building Technologies 2014-10-28

With the RDF110.2, when pressing the heating / cooling changeover button , the

controller will change from heating to cooling, or vice versa.

The minimum output on time and off time of Y11 can be adjusted from 1…10 minutes

via parameters P15 and P16. Factory setting is 1 minute. In this case, any readjustment

of the setpoint or of heating / cooling mode changeover will be used immediately for

computing the output status and output Y11 may not hold the minimum on / off time of

1 minute.

If parameter P15 or P16 is set to a level above 1 minute, the minimum on / off time of

Y11 will be maintained as set, even if the setpoint or changeover mode has been

readjusted.

Fan operation

The fan operates either in automatic mode or at the selected speed when using manual

mode. In automatic mode, the fan speed depends on the setpoint and the current room

temperature. When the room temperature reaches the setpoint, the control valve will

close and the fan switch off: Temperature-dependent fan control (see diagram below).

The individual switching differentials of the fan speeds can be adjusted via control

parameters P08 – P13.

Heating mode Cooling mode

SDH

SDHSDH2SDH3

Valve

Fan

SDC

SDC3

SDC2SDC

Valve

Fan

Y11Y11

Temp

3058D03

If desired, fan control can be set to ”Temperature-independent”, which means that

ventilation is always on, even within the dead zone, using at least fan speed 1. This can

be selected individually for Normal operation using parameter P21 and for Economy

(Energy saving) mode using parameter P20 (also refer to “Avoiding damage due to

moisture”).

In automatic mode, a dwelling time of 2 minutes (factory setting) is active. The fan

maintains that speed for at least 2 minutes before it switches to the next speed. This

dwelling time can be adjusted from 1…5 minutes using parameter P14.

When the fan starts from standstill, it starts with fan speed 3 for 1 second in order to

guarantee a safe fan motor start (to overcome inertia and friction).

Minimum output

on time / off time Y11

Ventilation always on

Dwelling time

Fan start

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Siemens Room Temperature Controllers N3057en

Building Technologies 2014-10-28

External sensor input B1-M

With the RDF110, a return air / external room temperature sensor or heating / cooling

changeover sensor can be connected to terminal B1-M. The function of this sensor

input is determined by parameter P22.

Sensor input B1-M is not galvanically separated from the AC 230 V mains supply.

Therefore, only a cable temperature sensor and wiring with sufficient insulation must be

used.

When P22 is set to “Automatic H/C changeover”, the sensor input acts to ensure

automatic heating / cooling changeover. The water temperature acquired by the

changeover sensor (QAH11.1 + ARG86.3) is used to switch from heating to cooling

mode, or vice versa. When the water temperature lies above 28 °C (parameter P24),

the controller switches to heating mode; below 16 °C (parameter P23), it switches to

cooling mode. If, immediately after switching on, the water temperature lies between

the 2 changeover points, the controller will start in heating mode. The water

temperature is acquired at 30-second intervals and the operating state is updated.

Automatic H / C changeover

Operating mode

Cooling mode

Water temperature

Heating mode

The QAH11.1 cable temperature sensor for automatic heating / cooling changeover can

be replaced by an external switch (suited for mains voltage) for manual remote

changeover:

3058Z03

QAH11.1

Contact open heating mode

Contact closed cooling mode

With parameter P99 (diagnostic value), automatic heating / cooling changeover can be

checked.

When parameter P22 is set to “Cooling only” or “Heating only”, sensor input

B1-M can be used to connect an external room temperature (QAA32) or a return air

temperature sensor (QAH11.1). Changeover is automatic if a sensor is detected at the

sensor input. With parameter P98 (diagnostic value), the sensor status can be checked.

The following table summarizes the relation between parameter P22, the external

sensor B1-M and variables which the controller uses for maintaining the temperature:

Parameter

P22

Variables:

The controller….

No sensor at

B1-M

QAH11.1/QAA32 at

B1-M

Heating only

is in H/C mode

Heating

controls according to

Internal sensor

Sensor at B1

Cooling only

is in H/C mode

Cooling

controls according to

Internal sensor

Sensor at B1

Automatic

H/C

changeover

is in H/C mode Heating

depending on the

temperature of sensor B1-

controls according to

Internal sensor Internal sensor

Automatic heating /

cooling changeover

Remote heating /

cooling changeover

External room or

return air temperature

sensor

Summary

B1-M and P22

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Siemens Room Temperature Controllers N3057en

Building Technologies 2014-10-28

External operating mode changeover D1-GND

With the RDF110, a potential-free operating mode changeover switch (window switch,

key card contact, etc.) can be connected to status input D1-GND. No additional power

supply is required for detecting the position of the external switch.

When the switch closes due to an open window, or unoccupied hotel room for instance,

the operating mode will change to Economy (Energy saving). During this external

operating mode changeover, neither the setpoint nor the control parameter nor fan

mode can be changed. When pressing the setpoint or fan mode buttons, ECO will flash

on the display, indicating that the operating mode is overridden from a remote location.

The operating action of the switch (N.C. or N.O.) can be selected via parameter P19.

Error handling

When the room temperature is out of the measuring range, which means above 49 °C

or below 0 °C, the display shows the limiting temperature in flashing figures, e.g. “0 °C”

or “49 °C”.

If the current setpoint is not OFF (see parameters 1 – 4), the controller is in heating

mode and the temperature is below 0 °C, output Y11 will be energized. In all other

cases, Y11 is deenergized. When the temperature returns to the measuring range, the

controller will resume Normal operation.

In case of an external sensor failure (short-circuit or open-circuit), the controller will

immediately switch back to the internal sensor to ensure control.

Should both the external and internal sensor fail, the display will flash “Err” to call the

user‘s attention.

Infrared remote control

The RDF110/IR and RDF110.2/IR have an infrared receiver built in. Together with the

IRA210 infrared remote control, the following operations can be performed from a

remote location:

•Selection of operating mode: Protection (Standby) / Normal operation

•Adjustment of setpoint in Normal operation

•Selection of fan mode: Automatic or manual fan speed

Using parameter P25, infrared remote control can be disabled.

Temperature out

of range

External sensor

failure

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Siemens Room Temperature Controllers N3057en

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Control parameters

With the RDF110 and RDF110.2, a number of control parameters can be readjusted to

optimize the 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

will be maintained.

The parameters can be changed as follows:

1. Set the controller to Protection (Standby) .

2. Press buttons and simultaneously for 3 seconds. Release them and,

within 2 seconds, press button again for 3 seconds. Then, the display will

show “P01“.

3. Select the required parameter by repeatedly pressing buttons and :

P01 P02 P22 P98

+- +

- -

3057z03

P99 -

-P25

4. By pressing buttons and simultaneously, the current value of the selected

parameter appears, which can be changed by repeatedly pressing buttons

or .

5. By pressing buttons and simultaneously again or 5 seconds after the last

press of a button, the last parameter will be displayed again.

6. If you wish to display and change additional parameters, repeat steps 3

through 5.

7. 10 seconds after the last display or setting, all changes will be stored and the

controller returns to Protection (Standby).

Parameters not used by the RDF110.2 are not available and cannot be displayed.

The factory setting of the control parameters can be reloaded as follows:

1. Set the controller to Protection (Standby) .

2. Press buttons and simultaneously for 3 seconds. Release them and,

within 2 seconds, press operating mode selector button 2 times.

Then, the display will show “888“ during the reloading process.

Parameter settings

Note:

Parameter reset

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Para-

meter

Meaning Setting range Factory

setting

P01

Setpoint of heating in Economy (Energy saving) mode

(WheatEco)

OFF, 5 °C…WcoolEco 16 °C1)

P02

Setpoint of cooling in Economy (Energy saving) mode

(WcoolEco)

OFF, WheatEco…40 °C 28 °C

P03

Setpoint of heating in Protection (Standby) (WheatStb)

OFF, 5 °C…WcoolStb

OFF

P04

Setpoint of cooling in Protection (Standby) (WcoolStb)

OFF, WheatStb …40 °C

OFF

P05

Minimum setpoint limitation in Normal operation (WminComf)

5 °C…WmaxComf

5 °C

P06

Maximum setpoint limitation in Normal operation (WmaxComf)

WminComf…40 °C

35 °C

P07

Sensor calibration

-3…+3 K

0 K

P08

Switching differential heating mode SDH

0.5…+4K

2 K

P09

Switching differential cooling mode SDC

0.5…+4K

1 K

P10

Switching differential fan speed 2 in heating mode SDH2

0.5…+4K

1 K

P11

Switching differential fan speed 2 in cooling mode SDC2

0.5…+4K

1 K

P12

Switching differential fan speed 3 in heating mode SDH3

0.5…+4K

1 K

P13

Switching differential fan speed 3 in cooling mode SDC3

0.5…+4K

1 K

P14

Dwelling time of auto fan speeds

1…5 minutes

2 min

P15

Minimum output on time (Y11)

1…10 minutes

1 min

P16

Minimum output off time (Y11)

1…10 minutes

1 min

P17

Selection of °C or °F

°C or °F

°C

P18 Display of temperature or setpoint

OFF: Setpoint

ON: Room (or return air)

temperature

P19 Operating action of remote changeover input

0: Normally open (N.O)

1: Normally closed (N.C.)

01)

P20 Fan control in Economy (Energy saving) mode

OFF in dead zone

ON in dead zone

OFF1)

P21 Fan control in Normal operation

OFF in dead zone

ON in dead zone

OFF

P22 Heating / cooling mode

0: Heating only

1: Cooling only

2: Automatic H/C

changeover

1: Cooling

only1)

P23

Heating / cooling changeover switching point cooling

10…25 °C

16 °C1)

P24

Heating / cooling changeover switching point heating

27…40 °C

28 °C1)

P25 Infrared receiver (only with RDF.../IR)

0: Disabled

1: Enabled

P98 Active temperature sensor

0: Internal sensor

1: External sensor

Diagnostic

value

P99 Value of current heating / cooling changeover temperature

reading and indication of current mode

100 = input open mode

0…49 °C = cur. temp. value

00 = input bridged 

mode

OFF= not commissioned as

automatic H/C changeover

Diagnostic

value1)

1) Not available with RDF110.2

Type summary

Type

Features

RDF110 With input for automatic heating / cooling changeover or return air

temperature sensor

With input for operating mode changeover

RDF110.2 With manual heating / cooling changeover

Without input for sensor

Without input for operating mode changeover

RDF110/IR

Same as RDF110 plus infrared remote control

RDF110.2/IR

Same as RDF110.2 plus infrared remote control

*) Type is not orderable any more

Control parameters of the RDF110 and RDF110.2

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Siemens Room Temperature Controllers N3057en

Building Technologies 2014-10-28

Equipment combinations

Type of unit

Type

Data Sheet

Infrared remote control

IRA210

Cable temperature sensor

QAH11.1

1840

Room sensor

QAA32

1747

Changeover mounting kit

ARG86.3

1840

Electromotoric on / off valve and actuator

MVI…/MXI…

4867

Electromotoric on / off actuator

SFA21...

4863

Thermal actuator (for radiator valve)

STA21...

4893

Thermal actuator (for small valves 2.5 mm)

STP21...

4878

Zone valve actuators

(only available in AP, UAE, SA and IN)

SUA… 4830

*) The documents can be downloaded from http://siemens.com/bt/download.

Accessories

Description

Type

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 112 x 130 mm

ARG70.2

Ordering

When ordering, please prodive name and type:

E.g. room temperature controller RDF110

The IRA210 infrared remote control is to be ordered as a separate item

The QAH11.1 can be used as a return air temperature or automatic heating / cooling

changeover sensor. In case it is used as a changeover sensor, the ARG86.3

changeover sensor mounting kit is to be ordered as a separate item.

Valve actuators are to be ordered as separate items.

Mechanical design

The controller consists of two parts:

•Plastic housing which accommodates the electronics, the operating elements and the

built-in room temperature sensor

•Mounting base

The housing engages in the mounting base and snaps on.

The base carries the screw terminals.

Setting and operating

elements

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Siemens Room Temperature Controllers N3057en

Building Technologies 2014-10-28

1 Display of the room temperature, setpoints and control parameters

2 Symbol used when displaying the current room temperature

3 Operating mode

Normal operation

Economy (Energy saving) mode

4 Protection (Standby) / fan mode status

Protection (Standby) mode

AUTO Auto fan active

fan speed low, medium, high

5 in cooling mode

in heating mode

6 Buttons for adjusting the setpoints and the control parameters

7 Button for changing fan operation and Protection (Standby) ( )

8 Manual heating / cooling changeover ( ) (only with RDF110.2)

9 Infrared receiver (only with RDF110…/IR)

Mounting and installation

The room controller can be mounted on a wall or inside the fan coil unit. The mounting

location on a wall should not be in niches or bookshelves, not behind curtains, above or

near heat sources and not exposed to direct solar radiation. Mounting height is about

1.5 m above the floor.

The controller can be fitted on a recessed conduit box.

When using a heating / cooling changeover sensor, then, before fitting the sensor,

thermal conductive paste must be applied to the location on the pipe where the sensor

is placed.

Also refer to the Mounting Instructions B3057 enclosed with the controller.

•Wiring, protection and earthing must be installed in compliance with local

regulations. It must be made certain that safety extra low-voltage lines (SELV

circuit) are clearly separated from AC 230 V mains voltage cable

•The cables to the controller, external sensor, fan and valves carry AC 230 V mains

voltage and must be appropriate sized

•Only sensors and valves rated for AC 230 V may be used

•The AC 230 V mains supply line must have a circuit breaker with a rated current of

no more than C 10 A

Warning!

No internal line protection for supply lines to external consumers

(Q1, Q2, Q3, Y11, Y12)

Risk of fire and injury due to short-circuits!

•Adapt the line diameters as per local regulations to the rated value of the installed

overcurrent protection device.

•Maximum 10 changeover contact inputs B1-M can be connected in parallel if an

external switch is used in place of a changeover sensor. The switch must be suited

for AC 230 V. The cable length must not exceed 80 m overall

•Maximum 10 operating mode changeover contact inputs D1-GND can be connected

in parallel. The cable length must not exceed 80 m overall

Legend

Wiring

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