Siemens RDF510.2 Manuel utilisateur

CB1N3064en

24.08.2010

BuildingTechnologies

for2-pipe fancoil units; foruse with compressors inDXtype equipment

•Outputfor on/offvalve actuator,3-wire on/off valve actuator or 1-stage

compressor

•3-speed fan control: Automatic or manual

•Manualheating/cooling changeover or continuous Cooling onlyor

Heatingonly

•Operatingmodes: Comfort, Protection

•Adjustablecommissioning and controlparameters

•Optionaldisplay of roomtemperature orsetpoint

•Minimum andmaximum setpoint limitation

•Display temperature in incrementsof0.5 Cor 1 F

•Operating voltage: AC 230 V

•Mounting on recessed rectangular conduitbox withfixing centre 60.3 mm

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Siemens Semi-flush-mountRoom Thermostatswith LCDCB1N3064en

BuildingTechnologies 24.08.2010

Use

For controllingthe room temperature in individual rooms and zonesthatare:

•heatedorcooled with 2-pipe fan coil units

•cooledwith a single compressorin DX type equipment

The controllercontrols:

•a3-speed fan

•eithera valve actuator in a2-pipe system,or

•a3-wire ball valve actuator in a 2-pipe system, or

•a1-stage compressor in DXtype equipment

Suitable foruse in systems with:

•continuous heating orcooling mode

•manualheating/cooling changeover

Functions

•Changeover between heating andcooling mode is manually

•Maintenance ofroomtemperature withintegrated temperature sensor

•Selection ofoperatingmode with the operatingmode button on the controller

•3-speed fan control (automatic or manual)

•Outputfor 2-position (on/off) valve actuator, 3-wire (on/off) valve actuator or 1-

stage compressor

•Buttonlock (automatic ormanual)

Controller

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

the setpoint by delivering 2-position valve control commands orcompressor output

commands.

The switching differential is1 K inheating mode and1 Kin cooling mode (adjust-

ablevia parameters P08 and P09).

The display can show currentroomtemperature or the setpointadjusted by user.

This can be selected via parameterP18 (factory setting is the currentroom tem-

perature).

The heating and cooling symbols on the display show the status of thefan

coil.This means thatthe symbols are also shown while the controller operates in

the dead zone.

Ifrequired, room temperature and setpoint can also be displayedin Fin place of

C by changing parameter P17.

Operating modes

The following operating modesare available:

In Comfort mode,the controller maintains the setpoint,which can be adjusted via

the + and –buttons.The fan can be setto automatic ormanual fan speed:Low,

mediumor high.

The setpointsetting range can be limited to a minimum(P05)and maximum (P06).

This helps preventthe waste of energy,thus saving costs.

Whenthe controlleris in Protection mode , the relevant setpoints of heating or

coolingare maintained.These setpoints can be adjusted via control parameters

P03 and P04. Factory setting ofP03 is 8 C; whereas P04 is OFF, which means

thatthe controlleris notactivatedwhen in Protection mode.

To avoid damage due to moisture in very warmandhumid climatic zones resulting

from lack of aircirculation in normal operation (Comfortmode ),the fan can be

Temperaturecontrol

Display

Comfort Mode

Tips

ProtectionMode

Avoiding damage

duetomoisture

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Siemens Semi-flush-mountRoomThermostatswith LCDCB1N3064en

BuildingTechnologies 24.08.2010

kept running all the time (e.g.in apartments orshops during unoccupied periods),

whensetting parameter P21 “ONindead zone”. In this case, the fan keeps running

at minimum fan speed 1.

Controlsequences

Usedin conjunction with a valve,eitherforheating/cooling with changeover, heat-

ing only or cooling only.

Usedin conjunction with a 1-stage compressor for cooling only orheating only.

Heatingmode Cooling mode

T[ C] Room temperature SDHSwitchingdifferential “Heating”

WRoom temperature setpoint SDCSwitchingdifferential “Cooling”

Y11 Control output “Valve”or “Compressor”

The valve orcompressor receives OPEN command via control outputY11 when:

•the acquired room temperature lies by half the switching differential belowthe

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

•control outputY11 was not energized formore than 1 minute (the “Minimum

output off time”is a fix value)

The valve orcompressor receives CLOSE command via control output Y11 when:

•the acquired room temperature lies by half the switching differential above the

setpoint(heatingmode)or below thesetpoint(cooling mode),and

•control outputY11 was energized formore than 1 minute (the “Minimumoutput

on time”is a fix value)

Control output Y12 deliversa control command which is inverted to the control

command atoutputY11 and which can be used foropen valves normally.

When pressing the Heat/Cool mode selector,thecontroller will change from heat-

ing to cooling, or vice versa.

Ifthe controller is set to “Cooling only”or “Heating only”,changeover will notbe

possible. Onlythe corresponding mode can be selected by the Heat/Coolmode

selector (parameterP22, factory settingis “manual changeover”).

The minimum outputon/off time ofY11 and Y12fixed at 1 minute. Itmeans that

any readjustment of the setpoint or ofHeat/Cool mode changeoverwill be hold for

1 minute before Y11and Y12react.

Fan operation

The fan operates either inautomatic mode or at the selected speed when using

manual mode.In automatic mode,the fan speed depends on the setpoint andthe

currentroom temperature. Whenthe roomtemperature reaches the setpoint,the

control valve will close andthe faneitherremains in fan speed 1 or switches off

(parameterP21, factory setting:ONin deadzone).

In “Temperature-dependent”fan control the fan switches off(seediagram below).

The individual switching differentials ofthe fan speed 1 (Q1 only) can be adjusted

Water-based fan coil

application

Compressor based

application

OFF

Notes:

Heat/Cool mode

Minimumoutput

on/offtime Y11,Y12

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Siemens Semi-flush-mountRoom Thermostatswith LCDCB1N3064en

BuildingTechnologies 24.08.2010

via control parameters P08 andP09.The individual switching differentials of the

fan speed 2 and 3 (Q2 and Q3) are fixed at 1 K.

Heating mode Coolingmode

SDH

SDHSDH2SDH3

Valve

Fan

SDC

SDC3SDC2SDC

Valve

Fan

Y11Y11

Temp

3058D03

Ifdesired,fan control can be set to “Temperature-independent”,which means that

ventilation is alwayson, even withinthe dead zone,using at leastfan speed 1.This

can be selected individually for normal operation (Comfort mode ) using parame-

terP21. Please also refer to “Avoiding damage due to moisture”.

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

maintains that speed for atleast 2 minutes before itswitches to the nextspeed.

This dwelling time can be adjusted from 1…5 minutes using parameterP14.

Whenever the fan starts fromstandstill,it starts with speed 3 for 1 second in order

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

Error handling

Whenthe room temperature is outofthemeasuringrange, which means above 49

C or below 0 C, the display shows the limiting temperature in flashing figures (“0

C”or “49 C”).

Ifthe current setpoint isnot OFF(seeparameters P03)and the controlleris in

heating mode, whenthe temperature isbelow0 C,outputY11 will be energized.

In all other cases, outputY11 will be de-energized until the temperature returns to

the measuringrange, and then the controller will resume Normal operation (Com-

fortmode ).

Controlparameters

A number ofcontrol parameters can be readjusted to optimize the control perform-

ance. These parameters can also be setduring operation withoutopening the unit.

In the event of a power failure,all control parameter settings will be maintained.

The parameters canbe changed as follows:

1. Set the controller to Protection mode .

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

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

“P03”.

3. Select the required parameterby repeatedly pressing buttons+ and –:

Ventilation

alwayson

Dwelling time

Fanstart

Temperatureout

ofrange

Parameter settings

5 /12

Siemens Semi-flush-mountRoomThermostatswith LCDCB1N3064en

BuildingTechnologies 24.08.2010

4. By pressing buttons + and –simultaneously,the currentvalue of the selected

parameterappears, which can be changed byrepeatedly pressing buttons +

or –.

5. By pressing buttons + and –simultaneously again,the nextparameterwill be

display.Or,5 secondsafter the lastpress of the button, the lastparameterwill

be displayedagain.

6. Ifyou wish to display and changeadditional parameters, repeat steps 3

through 5.

7. Otherwise, press +or –until “End”is displayed, and then press +and –simul-

taneously tosave the change andexitparameterentry mode.

The factory setting of the control parameters canbe reloaded asfollows:

1. Set the controller to Protection mode .

2. Press buttons+ and –simultaneously for3 seconds. Release them and, within

2 seconds, press Fan mode button twice.

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

Para-

meter

Meaning Settingrange Factory

setting

P03

Setpoint of heating in Protection

Mode (WheatStb) OFF, 5 C…WcoolStb 8 C

P04

Setpoint of cooling in Protection

Mode (WcoolStb) OFF, WheatStb…40 C OFF

P05

Minimumsetpointlimitation in

ComfortMode(WminComf) 5 C…WmaxComf 5 C

P06

Maximum setpoint limitation in

ComfortMode(WmaxComf) WminComf…40 C 35 C

P07

Sensorcalibration -3…3K 0 K

P08

Switching differentialheating mode

(SDH) 0.5…4 K 1K

P09

Switching differentialcooling mode

(SDC) 0.5…4 K 1K

P14

Dwelling time of auto fan speeds1…5mins 2 min

P17

Selection of C or F Cor F C

P18

Displayof temperature or setpoint

OFF: Setpoint

ON: Room(or return air)

temperature ON

P21

Fan control in Normal operation

(Comfortmode) OFF indead zone

ON in dead zone ON

P22

Heat/Coolmode 0: Heating only

1: Cooling only

3: Manual H/C changover

3: Manual

P26

Buttonlock

(Pressing 7 secondson the oper-

ating mode button,the buttons will

be locked or unlocked respec-

tively)

0: Disabled

1: Auto lock

2: Manual lock

0:Disabled

Parameter reset

Controlparameterlist

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Siemens Semi-flush-mountRoom Thermostatswith LCDCB1N3064en

BuildingTechnologies 24.08.2010

Equipment combinations

Type ofunit Type

reference Data

Sheet

Electromotoric on/offvalveandactuator

MVI421..

MXI421.. N4867

Electromotoric actuator (for zone valves) SFA21/18

SFA21.. N4863

N4863AP

Thermal actuator (for radiator valves,small

valves and zone valves) STA21... N4877

Thermal actuator (for terminal unit valves) STP21... N4878

Electric actuator (forzone valves)* SUA…N4832

Conduit box forsemi-flush-mount thermostat

ARG71

S55770-T137

N3009

*Only availablein AP, UAE, SA and IN.

Ordering

Whenordering, please indicate the product name,product number and SSNnum-

ber:

Room Thermostat, RDF510.2, S55770-T189

Valves and actuators shouldbe orderedseparately.

Example:

7 /12

Siemens Semi-flush-mountRoomThermostatswith LCDCB1N3064en

BuildingTechnologies 24.08.2010

Mechanical design

The controller consists of 2parts:

•Front panel which comprised bythe electronics, the operating elements and the

built-in roomtemperature sensor

•Mounting base with the power electronics

The rearofthe mounting base containsthe screw terminals which fit on a rectan-

gularconduit box with fixing centres 60.3 mm.The frontpanel engages in the

mounting base and snaps on.

Display of theroomtemperature, setpoints and control parameters

②Symbol used when displaying the current roomtemperature

③Fan mode and fan speed indicator

Automatic fan active

Manual fan active

④Fan mode button

−changing the fan mode (Auto/manual)

−changing the fan speed (Low/Medium/High)

⑤Heat/Cool mode selector

−For thechangeoverbetween cooling mode andheating mode ifP22 =3

Or:Operating mode button

−Fortheselection of comfortmode andprotection mode

Or:Button lock

−Press and hold for 7seconds, to lockedand unlocked the buttons manually

⑥Buttonsfor adjusting the setpointsand control parameters

⑦Mode indicator

Heat/Cool Mode indicator:

Cooling mode active

Heating mode active

Operating Mode indicator:

Comfortmode active

Protection mode active

Setting andoperat-

ing elements

Legend:

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Siemens Semi-flush-mountRoom Thermostatswith LCDCB1N3064en

BuildingTechnologies 24.08.2010

Mounting andinstallation

The room controllercan be mounted ona recessed rectangularconduit box with

fixing centres of60.3 mm.The mounting location on a wall should notbe in niches

or bookshelves,notbehind curtains, above or near heatsources and wind outletor

inlet, and not exposed to direct solar radiation. Mounting heightis about 1.5 m

above the floor.

You can also referto the Mounting Instructions M3064 enclosed with the controller.

•Wiring, fuse and earthing must be installed in compliance with local regulations.

•The cables to the controller, fan and valves carry AC230 Vmains voltage and

mustbeappropriate sized.

•Only valves rated forAC 230 V may beused.

•The AC 230 Vmains supply line must have an external fuse or circuitbreaker

with a rated currentofno more than 10A.

•Nometal conduits.

•Nocables providedwith a metal sheath.

•Disconnectfrom supply before openingthe cover.

After applying power, the controller makes aresetduring which all LCDsegments

displayed, indicating that the resethas been correctly made. This takes about 3

seconds. Then, the controller is ready for commissioning by qualified HVAC staff.

The control parameters ofthecontroller can be set to ensure optimum performance

of the entire system(please referto “ParameterSettings”).

•Depending onthe application, the Heat/Cool mode must be setvia parameter

P22.Factory setting is “Manual Heat/Cool changeover”.Whenusingin “Cooling

only”or “Heating only”,P22 mustbe setaccordingly.

•Ifthe roomtemperature displayed by the controller does notaccordwith the

roomtemperature effectively measured,the temperature sensor can berecali-

brated.In thatcase,parameter P07 mustbe changed.

•For comfort and energy savingreasons,itis suggested to reviewthe setpoints

and setpointranges (parameters P03…P06) and,if necessary,tochangethem

accordingly

Disposal

The device is classified as waste electronic equipment in terms ofthe European

Directive 2002/96/EC(WEEE) and should not be disposed of as unsorted munici-

pal waste.

Adhere to all relevant national laws.

Regarding disposal, use the systems setup forcollecting electronic waste.

Observe all local and applicablelaws.

Wiring

Commissioning

Heat/Cool mode

Calibrating sensor

Setpointand range

limitation

9 /12

Siemens Semi-flush-mountRoomThermostatswith LCDCB1N3064en

BuildingTechnologies 24.08.2010

Technicaldata

Operating voltage AC 230V+10/-15%

Frequency 50/60 Hz

Powerconsumption Max. 4VA

Fan control Q1, Q2, Q3-N

Rating AC 230V

Max. 4(2) A

Control outputY11-N(N.O.) /Y12-N (N.C.)

Rating AC 230V

Max. 4(2) A

Switching differential, adjustable from 0.5...4 K

Heatingmode (factory setting)

Cooling mode (factorysetting)

Setpoint setting range

Normal operation (Comfortmode)

Protection mode

5...40 C

OFF, 5...40 C

Factory setting ofsetpoints

Normal operation (Comfortmode)

Protection heating mode

Protection cooling mode

20 C

8 C

OFF

Built-in roomtemperature sensor

Measuring range

Accuracy at 25 C

Temperaturecalibration range

0…49 C

<±0.5 K

±3K

Resolution of settings and display

Setpoints

Current temperature value displayed

0.5 C

Operation

Climatic conditions

Temperature

Humidity

to IEC721-3-3

class 3K5

0...50 C

<95% r.h.

Transport

Climatic conditions

Temperature

Humidity

Mechanical conditions

to IEC721-3-2

class 2K3

-25...60 C

<95 % r.h.

class 2M2

Storage

Climatic conditions

Temperature

Humidity

to IEC721-3-1

class 1K3

-25...60 C

<95 % r.h.

conformity to

EMC directive

Lowvoltage directive

2004/108/EC

2006/95/EC

N474 C-Tick conformity to

EMC emission standard AS/NSZ 61000.6.3:2007

Reduction of hazardous substances 2002/95/EC

Powersupply

Outputs

Operational data

Environmental

conditions

Norms and standards

10/12

Siemens Semi-flush-mountRoom Thermostatswith LCDCB1N3064en

BuildingTechnologies 24.08.2010

Productstandards

Automatic electrical controls for household

and similar use

Special requirements fortemperature-

dependent controls

Electronic control type

EN 60730 –1

EN 60730 –2-9

2.B (micro-disconnection on

operation)

Electromagnetic compatibility

Emissions

Immunity

IEC/EN61 000-6-3

IEC/EN61 000-6-1

Devices of safety class IIas perEN 60 730

Pollution class normal

Degree ofprotection of housing IP 30 as per EN60529

Connection terminals solid wires orprepared

stranded wires

2x 0.4-1.5 mm2or1 x0.4-

2.5 mm2

Weight 0.17 kg

Color ofhousing front white,RAL9003

Connection terminals

L, NOperating voltage AC 230 V

Q1 Control output “Fanspeed 1”AC 230 V

Q2 Control output “Fanspeed 2”AC 230 V

Q3 Control output “Fanspeed 3”AC 230 V

Y11 Control output “Valve”AC230V(N.O.)

or output for compressor

Y12 Control output “Valve”AC230V(N.C.)

Connection diagrams

Application: 2-pipe fan coil unit

AC 230 V

M13-speed fan

N1RDF510.2

Y1 Zone Valve

Application: Compressor in DX type equipment

AC 230 V

M13-speed fan

N1RDF510.2

C1Compressor

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