Moehlenhoff RD 40203, RD 45203, RD 20203, RD 25203, RD 40203-10 User Manual

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RD 40203 | RD 45203
RD 20203 | RD 25203

131496.1533

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Contents

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ENG 4

1 About these instructions ...............................................5

1.1 Validity, storage and forwarding of the instructions 5

1.2 Symbols 5

2 Safety............................................................................6

2.1 Intended use 6

2.2 General safety notes 6

3 Device overview ............................................................8

4 Operation ......................................................................9

4.1 Setting the target temperature 9

4.2 Navigation and settings 9

4.2.1 Lifestyle functions menu 11

4.2.2 Settings menu 15

4.2.3 Service menu 20

5 Comfort and protection functions ...............................23

5.1 Comfort functions 23

5.1.1 Smart Start/Smart Stop function 23

5.1.2 Heating/cooling change-over 23

5.2 Protection functions 23

5.2.1 Valve protection function 23

5.2.2 Antifreeze protection 23

6 Maintenance ...............................................................24

6.1 Troubleshooting 24

6.2 Cleaning 25

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1 About these instructions

1.1 Validity, storage and forwarding of the instructions

These instructions apply to the room thermostats of the following

types:

- RD 40203-10 – Standard 24V,

- RD 20203-10 – Standard 230V,

- RD 45203-40 – Comfort 24V,

- RD 25203-40 – Comfort 230V,

- RD 45203-60 – Control 24V,

- RD 25203-60 – Control 230V.

These instructions include information necessary for the operation
of the devices. The room thermostats are designated as “Stand­ard”, “Comfort” and “Control” in order to point out differences
between these types. These instructions must the read completely
and thoroughly before commencing any work with the devices.
These instructions must be kept and to be handed over to future
users. You can view and download these instructions and the asso­ciated installation instructions under www.ezr-home.de.

1.2 Symbols

The following symbols are used in this manual:
Hazard symbols: Identifies a hazard

Information: Identifies important or useful information

¾ User action
9 Result from an action

• List without fixed order

1., 2. List with fixed order

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The room thermostat controls, directly or via a connection unit,
thermal actuators connected in a room-by-room temperature con­trol system. It is suitable for 24V or 230V components, depending
on the variant. The unit serves for

• a fixed installation,

• the registration of the actual temperature (room temperature),

• the setting of the target temperature (comfort temperature)

• the control of the actual temperature by activating actuators
in heating operation (Standard) or heating/cooling operation
(Comfort, Control) in an assigned zone,

• the connection of an external sensor (Control).

Every other use, modification and conversion is expressively forbid­den and leads to dangers the manufacturer cannot be held liable
for.

All safety notes in these instructions must be observed in order to
avoid accidents with personal damage or property damage.

• Only an authorised electrician may open the device. It may only
be opened in de-energised state.

• Always disconnect from the mains network and secure against
unintended activation before opening.

• Only use the device if it is in flawless state.

• Observe the performance limits of the device and the environ­mental conditions.

• This device is not intended to be used by persons (including
children) with restricted physical, sensory or mental skills or who
lack experience or knowledge. If necessary, these persons must

2 Safety

2.1 Intended use

2.2 General safety notes

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be supervised by a person responsible for their safety or receive
instructions from this person on how to use this unit.

• Ensure that children do not play with this device. Children must
be monitored if necessary.

• In case of emergency, disconnect the complete room-by-room
temperature control system.

General safety notes

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3 Device overview

Display

Mo Tu We Th Fr Sa Su

0 6 12 18 24

Rotary control with
turn/press mechanism
and fine ratchet

Room thermostats

Type Symbol Meaning Symbol Meaning

Standard

Comfort

Control

Lifestyle functions
menu

Temperature unit

Settings menu

Target/
actual temp.

Heating Min. temperature

Operating lock Max. temperature

Switching off

Make/confirm
entry

Automatic operation

Correction of actual
temp. measuring

Day operation Back

Night operation

Service menu Display illum.

Cooling Factory settings

Holiday function Time indications

Time

Comfort programs

Week day

Setting the min.floor
temperature

1

0 6 12 18 24

Time scale

1

Displayed if an external floor sensor is registered.

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4 Operation

WARNING
Danger to life in case of swallowing!

The rotary control can be taken off; children might swallow it.

¾ Do not lay down the rotary control near children.

The navigation and settings of the room thermostat are performed
with the rotary control:

+-

The target temperature is set by turning the rotary control
to the left or to the right. Rotating to the left decreases the
temperature, rotating to the right increases it.

By pressing the rotary control, menus are opened and func­tions are activated, and changed settings are applied.

+-

By rotating the rotary control, settings can be done and
functions and menus can be chosen.

Comfort temperatures for day and night operation can be
stored. A manual or automatic change between the oper­ating modes day and night operation changes to the stored
temperature. The target temperature can be changed with
the rotary control, independent from the active operating
mode. You can find more information in section Lifestyle
functions menu.

4.1 Setting the target temperature

4.2 Navigation and settings

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Menu selection

Lifestyle functions (Standard, Comfort, Control)

Includes all important basic functions.

Settings (Standard, Comfort, Control)

Includes extended functions and numerous setting pos­sibilities.

Service (Comfort, Control)

Includes various system parameters. An optimal tuning
of the overall system can be obtained by corresponding
settings.

Back

Leaves the menu selection and returns to the basic level.

The available menus depend on the room thermostat variant.

Basic level

In the basic level, all room thermostats show the current actual
temperature as well as active functions. The Control variant addi­tionally is equipped with a clock function.

A basic level and three menus are available for navigation and set­tings:

Navigation and settings

• A selected menu resp. a selected function is displayed
with a flashing symbol.

• If no operation is performed, the display returns to the
basic level after approximately 5 seconds.

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4.2.1 Lifestyle functions menu

This menu allows the setting of the lifestyle functions. Depending
on the room thermostat variant, the settings listed in the graphic
are available. The following pages contain detailed information.

• For the selection of an operating mode (day, night, au­tomatic operation) only the inactive modes are available
for selection.

• If no operation is performed, the display returns to the
basic level after approximately 30 seconds.

Standard, Comfort and Control
Only Control

+-

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Description Steps

Day operation

Standard

Adjustment to the set target tempera­ture.

Comfort, Control

Adjustment to the set comfort temper­aturein the menu Settings.

¾ Confirm the selection by

pressing.
9 Day operation is activated.
9 The basic level is displayed.

Night operation

Standard

The software internally lowers the tar­get temperature set for day operation
by 2°C.

¾ Confirm the selection by

pressing.
9 Night operation is selected.
9 The basic level is displayed.

The symbol flashes if the target
temperature is changed. The
temperature change is applied
for day operation. Subsequently,
the software re-calculates the re­duction temperature for night
operation.

Comfort, Control

Adjustment to the set reduction tem­peraturein the Settings menu.

¾ Open the menu selection by pressing.
¾ Select the menu Lifestyle functions.
¾ Activate the menu by pressing again.
¾ Select the desired function.

Lifestyle functions menu

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Description Steps

Automatic operation

Standard, Comfort

The signal of an external system clock
(e. g. from a Control room thermostat)
activates day or night operation.

Control

Automatic temperature control
according to the Comfort programs in
the Settings menu.

¾ Confirm the selection by

pressing.

9 Automatic operation is

activated.

9 The basic level is displayed.
9 Control: The time scale is

displayed.

Holiday function

Automatic reduction to the set

holiday temperaturein the Set­tings menu.

Activate

¾ Confirm the selection by

pressing.

¾ Set the number of holiday

days by rotating.
¾ Confirm the entry.
9 The holiday function is acti-

vated immediately.
9 The basic level is displayed.

A subsequent change of
the target temperature
deactivates the holiday
function.

Deactivate

¾ Observe the operating steps

under “Activation”.
¾ Set the number of holiday

days to 00 by rotating.

Lifestyle functions menu

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Lifestyle functions menu

Description Steps

Operating lock

Blocks the room thermostat.

The actual temperature and
all active functions are still displayed,
the possibility to change the target
temperature and the operation are de­activated.

Activate

¾ Confirm the selection by

pressing.

9 The operating lock is acti-

vated.
9 The symbol is displayed.
9 The basic level is displayed.

Deactivate

¾ Press the rotary control for >

5 seconds.
9 The symbol is deactivat-

ed, operation is possible

again.

Switching off

Switches the room thermostat

off. Temperature control is
deactivated. The protective functions
(valve protection and antifreeze protec­tion) remain active.

For the room thermostat Control, the
comfort programs from the Settings
menu are still applied. Queued switch­ing signals are given out to connected
thermostats via the reduction output.

¾ Confirm the selection by

pressing.
9 All functions are deactivated.
9 The symbol is displayed.
9 The target temperature is

displayed

Switching on

¾ Press the rotary control for >

5 seconds.
9 The basic level is displayed.
9 All active functions are

displayed.

Back

Leaves the menu.

¾ Confirm the selection by

pressing.
9 The display is in basic level.

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4.2.2 Settings menu

Extended settings can be made in this menu. Depending on the
room thermostat type, the settings listed in the graphic are availa­ble. The following pages contain detailed information.

If no operation is performed, the display returns to the basic
level after approximately 30 seconds.

Standard, Comfort and Control
Comfort, Control

Only Control

+-

0 6 12

1

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¾ Open the menu selection by pressing.
¾ Select the settings menu.
¾ Activate the menu by pressing again.
¾ Select the desired setting.

Description Steps

Comfort temperature
Heating

Setting the target tempera­ture for day operation.

¾ Confirm the selection by

pressing.
¾ Set the target temperature.
¾ Confirm the entry by

pressing.
9 This is displayed in the Set-

tings menu.

Reduction temperature
Heating

Setting the target tempera­ture for night operation.

¾ Confirm the selection by

pressing.
¾ Set the target temperature.
¾ Confirm the entry.
9 This is displayed in the Set-

tings menu.

Comfort temperature
Cooling

Setting the target tempera­ture for day operation.

¾ Confirm the selection by

pressing.
¾ Set the target temperature.
¾ Confirm the entry.
9 This is displayed in the Set-

tings menu.

Reduction temperature
Cooling

Setting the target tempera­ture for night operation.

¾ Confirm the selection by

pressing.
¾ Set the target temperature.
¾ Confirm the entry.
9 This is displayed in the Set-

tings menu.

Settings menu

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Description Steps

External floor sensor

Setting the minimum floor
temperature.

¾ Confirm the selection by

pressing.
¾ Make the setting.
¾ Confirm the entry.
9 The display flashes in the

Settings menu.

This function is displayed if the
connection of an external floor
sensor is defined in the Service
menu under Parameter 040.

Holiday temperature

Setting the target temper­ature for the holiday func-
tion in the Lifestyle functions
menu.

¾ Confirm the selection by

pressing.
¾ Set the target temperature.
¾ Confirm the entry.
9 This is displayed in the Set-

tings menu.

Target temperature
limitation

Setting of the maximum and
minimum settable target tem­perature.

¾ Confirm the selection by

pressing.
¾ Set the minimum temper-

ature.
¾ Confirm the entry.
¾ Set the maximum temper-

ature.
¾ Confirm the entry.
9 This is displayed in the Set-

tings menu.

Time indications

Setting of time and weekday.

¾ Confirm the selection by

pressing.
¾ Set the time (hh:mm) and

the weekday by rotating and

apply by pressing.
9 This is displayed in the Set-

tings menu.

Settings menu

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Description Steps

0 6 12

Comfort programs

In automatic operation there
is a control with the switching

times of the comfort programs:

• Week (Mon–Sun)

• Weekdays (Mon-Fri)

• Weekend (Sat–Sun)

• Day (Mon, Tue, Wed, Thu, Fri, Sat,
Sun)

Every weekday can include four
switching times (P1 - P4). After reach­ing the starting time, the comfort
temperature is adjusted. Outside the
switching times control is performed
according to the reduction tempera­ture. The predefined switching times
can be adapted individually:

Mon–Fri: 5.00 am - 8.00 am

3.00 pm - 10.00 pm

Sat - Son: 6.00 am - 11.00 pm

¾ Confirm the selection by

pressing.

9 The display switches to the

comfort program overview;
the display indicates “day”.

¾ Select and activate a com-

fort program.

¾ Select a switching time P1

to P4.

¾ Set the start time and the

end time by rotating and
apply by pressing.

¾ Return to the comfort

program overview with
“BACK”.

¾ Set further switching times

or change to the Settings
menu with “BACK”.

• Automatic operation must be
activated.

• The comfort and reduction
temperatures must be set in
the Settings menu.

• The current time indications
must be set.

Temperature correction

Corrects a deviating measure­ment of the actual tempera-

ture of the internal sensor by ±2°C in

0.1°C increments.

¾ Confirm the selection by

pressing.
¾ Set the correction value.
¾ Confirm the entry.
9 This is displayed in the

Settings menu.

Settings menu

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Description Steps

Display illumination

Sets the brightness of the dis­play illumination in five levels:

0 Off
25 Level 1
50 Level 2
75 Level 3
100 Level 4

¾ Confirm the selection by

pressing.

¾ Set the brightness of the

display illumination.
¾ Confirm the entry.
9 The Settings menu is

displayed.

The display of the setting is sig­nalled by the time scale.

Factory settings

Restores the factory settings.
All previously made settings
will be reset.

¾ Confirm the selection by

pressing.
¾ Select the entry “Yes” for

resetting.
¾ Press the rotary control for

5 seconds.
9 A restart is performed.

The basic level is displayed

subsequently.

The entry “No” cancels
the process.

Back

Leaves the menu.

¾ Confirm the selection by

pressing.
9 The basic level is displayed.

Settings menu

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4.2.3 Service menu

Room thermostats Comfort and Control!

An optimal tuning of the overall system can be reached by corre­sponding settings of the system parameters. In order to avoid a
faulty configuration, this menu is protected by a 4-digit PIN (stand­ard: 1234).

¾ Open the menu selection by pressing.
¾ Select the Parameter menu.
¾ Activate the menu by pressing again.
¾ Select the menu entry “Code”.
¾ Activate the PIN entry by pressing.
¾ Enter the 4-digit PIN (standard: 1234). Select the individual ci-

phers by rotating and confirm by pressing.
¾ Start the entry by activating the function “PAr”.
¾ Select the individual ciphers of the parameter number by rotat-

ing and confirm by pressing.
¾ Activate the entry by selecting “SET” and by pressing.
¾ Perform the setting according to the subsequent parameter list.
¾ Return to the basic level by selecting “BACK” 2 times.

CAUTION
Damage to the installation!

Faulty configuration can lead to errors and installation damage.

¾ Only authorised specialists may perform settings.

If no operation is performed, the display returns to the basic
level after approximately 30 seconds.

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No. Description Setting

010

Heating system

Sets the existing heating system:

• Floor heating, standard (FBH St.)

• Floor heating, low energy (FBH NE)

• Radiator (RAD)

• Convector, passive (KON pas)

• Convector, active (KON akt)

0 = FBH St.
1 = FBH NE
2 = RAD
3 = KON pas
4 = KON akt

Standard: 0

020

Blocking of cooling

Deactivates the cooling function.

0 = activated
1 = deactivated

Standard: 0

030

Operating lock

Protects the deactivation of the operating
lock with a PIN.

0 = deactivated
1 = activated

Standard: 0

031

PIN operating lock

Sets the PIN for parameter 30.

0 ... 9999

Standard: 0000

040

External sensor (only Control)

Registration of an external room sensor or
floor sensor. The registration of a room sen­sor deactivates the internal sensor. If a floor
sensor is used, the minimum floor tempera­ture can be set via the Settings menu in the
function “External floor sensor”.

0 = no external

sensor
1 = room sensor
2 = floor sensor

Standard: 0

041

Correction of actual temperature of
external sensor
(only Control)

Corrects a deviating measurement of the ac­tual temperature.

-2 ... +2°C

Standard: 0 °C

050

Duration of the display illumination

Sets the duration of further illumination of
the display after use.

0 ... 30sec.
in 5 second incre­ments

Standard: 15sec.

Service menu

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No. Description Setting

090

Signalling of switching output

Signalises the control of switching outputs by
a flashing heating resp. cooling symbol.

0 = deactivated
1 = activated

Standard: 1

110

Control direction switching output

Sets the control direction of connected actu­ators:

• Normally closed (NC)

• Normally open (NO)

0 = NC
1 = NO

Standard: 0

161

Antifreeze temperature

Activates the antifreeze protection function
when the temperature falls below the set
temperature.

5 ... 10 °C

Standard: 5

170

Smart Start/Smart Stop function
(only Control)

Teaches the temperature behaviour of the
room.

0 = deactivated
1 = activated

Standard 1

190

Valve protection function

Cyclic opening of the valve in order to avoid
clogging.

0 ... 28 days

Standard: 14

191

Valve activation duration

Time for triggering actuators for performing
the valve protection function.

0 ... 10 minutes

Standard: 5 min

Service menu

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5 Comfort and protection functions

Only room thermostat Control:

The Smart Start/Smart Stop function (parameter 170) automati­cally calculates the required line-up times, so that the set comfort
temperature is present at the start and end times of the comfort
programs.

The room thermostat is equipped with protection functions for
avoiding damage to the overall installation.

In order to increase the user comfort, the room thermostat in­cludes functions for controlling the comfort temperature.

In periods without valve activation (e. g. outside the heating peri­od), all valves are opened cyclically. This avoids a clogging of the
valves (parameters 190 and 191).

Room thermostats Comfort and Control

The change-over function switches the entire installation between
heating and cooling using an external signal.

5.1 Comfort functions

5.1.1 Smart Start/Smart Stop function

5.1.2 Heating/cooling change-over

5.2 Protection functions

5.2.1 Valve protection function

Independent from the operating mode, the room thermostat is
equipped with an antifreeze function (parameter 161). When the
temperature falls below the antifreeze protection temperature, all
connected actuators are activated and the valves are opened.

5.2.2 Antifreeze protection

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6 Maintenance

6.1 Troubleshooting

Display Meaning Possible elimination

Measuring
temperature of
internal/external
sensor exceeded

Internal sensor/room sensor

• Remove external heat sources in the
direct environment and wait until
the sensor has cooled down again.

• Reposition the room sensor if
necessary.

• Have the room thermostat/room
sensor checked and replaced if
necessary.

Floor sensor

• Have the floor sensor checked and
replaced if necessary.

0004 Malfunction in

external sensor
(room/floor
sensor)

• No external sensor connected.

• Reset to the factory settings.

• Deactivate the external sensor in
the Service menu under parameter

040.

• Have the external checked and
replaced if necessary.

0010 Malfunction in

internal sensor

• Reset to the factory settings.

• Have the room thermostat checked
and replaced if necessary.

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This manual is protected by copyright. All rights reserved. It may
not be copied, reproduced, abbreviated or transmitted, neither in
whole nor in parts, in any form, neither mechanically nor electroni­cally, without the previous consent of the manufacturer.
© 2015

131496.1533

6.2 Cleaning

Only use a dry and solvent-free, soft cloth for cleaning.

Maintenance

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Indhold

DAN/NOR

DAN/NOR 26

1 Om denne vejledning ..................................................27

1.1 Gyldighed, opbevaring og videregivelse af denne vejled­ning 27

1.2 Symboler 27

2 Sikkerhed ....................................................................28

2.1 Bestemmelsesmæssig brug 28

2.2 Generelle sikkerhedshenvisninger 28

3 Oversigt over enheden ................................................30

4 Betjening ....................................................................31

4.1 Indstilling af den ønskede temperatur 31

4.2 Navigation og indstillinger 31

4.2.1 Menu Lifestyle-funktioner 33

4.2.2 Menu Indstillinger 37

4.2.3 Menu service 42

5 Komfort- og beskyttelsesfunktioner ............................45

5.1 Komfortfunktioner 45

5.1.1 Smart start/Smart stop-funktion 45

5.1.2 Change over opvarmning/køling 45

5.2 Beskyttelsesfunktioner 45

5.2.1 Ventilbeskyttelsesfunktion 45

5.2.2 Frostbeskyttelsesfunktion 45

6 Vedligeholdelse ...........................................................46

6.1 Fejlafhjælpning 46

6.2 Rengøring 47

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1 Om denne vejledning

1.1 Gyldighed, opbevaring og videregivelse af denne
vejledning

Vejledningen gælder for rumtermostaterne af typen

- RD 40203-10 – Standard 24V,

- RD 20203-10 – Standard 230V,

- RD 45203-40 – Komfort 24V,

- RD 25203-40 – Komfort 230V,

- RD 45203-60 – Control 24V,

- RD 25203-60 – Control 230V.

Vejledningen indeholder informationer, som er nødvendige for
betjeningen af enhederne. For at vise forskelle mellem de enkelte
typer betegnes rumtermostaterne som ”Standard“, ”Komfort“ og
”Control“. Inden der arbejdes med enhederne skal denne vejled­ning læses komplet og grundigt. Vejledningen skal opbevares og
videregives til efterfølgende brugere. Det er muligt at se og down­loade vejledningen og den dertil hørende installationsvejledning på

www.ezr-home.de.

1.2 Symboler

Følgende symboler bruges i vejledningen:
Faretegn: Markerer en fare

Information: Kendetegner en vigtig og nyttig informationer

¾ En brugers aktive handling
9 Resultat, som fremkommer ved en handling

• Optælling uden fast rækkefølge

1., 2. Optælling med fast rækkefølge

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Rumtermostaten styrer direkte eller via en tilslutningsenhed tilslut­tede termiske aktuatorer i et reguleringssystemet til enkeltrum. Alt
efter udførelsen egner den sig til 24 V- eller 230 V-komponenter.
Enheden er beregnet

• til en stationær installation,

• registrering af den faktiske temperatur (rumtemperatur),

• indstilling af den ønskede temperatur (behagelig temperatur),

• regulering af den faktiske temperatur ved styring af aktuatorer
ved opvarmnings- (Standard) eller opvarmnings-/køledrift (Kom­fort, Control) i et tildelt område,

• tilslutning af en ekstern sensor (Control).

Enhver anden brug, ændringer og ombygninger er udtrykkeligt for­budte og fører til farer, som producenten ikke er ansvarlig for.

For at undgå ulykker med personskader og materielle skader skal
alle sikkerhedshenvisninger i denne vejledning overholdes.

• Det er kun tilladt for en autoriseret fagmand at åbne enheden i
spændingsfri tilstand

• Inden enheden åbnes, skal den slukkes og sikres mod utilsigtet
genindkobling.

• Enheden må kun bruges i teknisk upåklagelig tilstand.

• Enhedens effektgrænser og omgivelsesbetingelserne skal tilgo­deses.

• Personer (herunder børn) med begrænsede fysiske, sensoriske
eller mentale evner, manglende erfaring eller manglende viden

2 Sikkerhed

2.1 Bestemmelsesmæssig brug

2.2 Generelle sikkerhedshenvisninger

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må hverken bruge denne enhed eller arbejde med den. Disse
personer skal i givet fald være under opsyn eller få instruktioner
af en person, som er ansvarlig for deres sikkerhed, vedrørende
brugen af produktet.

• Kontrollér, at ingen børn leger med produktet. Hold i givet fald
børn under opsyn.

• I nødsituationer skal hele reguleringen af de enkelte rum gøres
spændingsfri.

Generelle sikkerhedshenvisninger

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3 Oversigt over enheden

Skærm

Mo Tu We Th Fr Sa Su

0 6 12 18 24

Drejeknap med drej­tryk-mekanik og fine
stop.

Rumtermostat

Type Symbol Betydning Symbol Betydning

Standard

Komfort

Control

Menu Lifestyle-funk­tioner

Temperaturenhed

Menu indstillinger Ønsket/faktisk temp.

Opvarmning Minimumstemperatur

Betjeningsspærre

Maksimaltemperatur

Slukke

Foretage/bekræfte in­dtastning

Automatisk drift

Korrektur måling af
faktisk temperatur

Dagdrift Tilbage

Natdrift

Menu service Skærmbelysning

Afkøling Fabriksindstillinger

Feriefunktion Tidsangivelser

Klokkeslæt

Komfort-programmer

Ugedag

Indstilling af
minimumsgulvvarme­temperatur

1

0 6 12 18 24

Tidsskala

1

Vises, når der er tilmeldt en ekstern gulvsensor.