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Start-up

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CAUTION! 

The heating system will malfunction 

if the controls are incorrectly set. 

This can damage the heating system. 

Only a technician may adjust the settings 

of the heating system.

Set the heating mode when starting the controller.

 

Press 

M

 in the default display.

MENU briefly appears in the function display (8). 

A help text as a marquee appears at the bottom 

edge of the display.

 

Press the 

+

 / 

-

 buttons until INSTALLER 

SETTINGS appears.

 

■ Select INSTALLER SETTINGS with 

O

.

CODE is displayed, and code number 0 flashes.

 

■ Select code 7 with 

+

 / 

-

, confirm with 

O

.

H1 and the marquee text HEATING TYPE are 

displayed.

 

Press 

O

.

ROOM 

is the default. When switching the heating 

mode, all the user and installer settings are reset to 

the default.

 

Press 

+

 / 

-

 to set the desired heating mode 

and confirm with 

O

.

The heating mode is set.

Additional settings are available under "Installer 

settings".

Installer settings
Overview 3

A marquee at the bottom of the display shows 

information for an individual menu items identified 

with H1 to H11.

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Some menu items are not available under the 

control modes set under H1.

The abbreviations for the relevant control mode for 

each menu item are indicated in the table.

The abbreviations have the following meaning:

R

 = Room temperature controller

F

 = Floor temperature controller

L

 =  Room temperature controller with a limiting 

function

(The menu displays and set all values are in 

UPPERCASE, and the 

presettings are bold

)

H1  HEATING TYPE

R F L

Selection of the control method depending on the 

heating mode:

 

ROOM 

= Room temperature controller with 

the setting of whether or not a remote sensor is 

connected: 

EXTERNAL SENSOR = YES/

NO

 

FLOOR = Floor temperature controller

 

LIMITER = Room temperature controller with 

limiter

Select with 

+

 / 

-

, confirm with 

O

.

H2  CONTROL MODE

R F L

Select the control mode:

 

PWM

 = Pulse width modulation with the cycle 

time set in minutes: 

10

, 15 ... 30.

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For fast heating systems, select a short cycle 

time, for slow heating systems, select a long 

cycle time. The minimum on/off time is 10% of 

the cycle time.

 

ON/OFF = Two-point control with setting option 

of the hysteresis (

OFF

, 0.1 °C, 0.2 °C … 5.0 °C) 

and the minimum switch-on/switch-off time of the 

relay in minutes (1, 2 … 

10

 ... 30).

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If the hysteresis is not set, the relay switches 

with the minimum on/off time even when the 

temperature differences are very small.

Select with 

+

 / 

-

, confirm with 

O

.

H3  MIN/MAX FLOOR TEMP

L

Setting the upper and lower limit for the floor 

temperature:

 

LOWER LIMIT FLOOR TEMP

: The floor should 

not be colder than the temperature set here 

(

OFF

, 10.0 °C, 10.5 °C … 35.0 °C).

 

UPPER LIMIT FLOOR TEMP

: The floor should 

not be warmer than the temperature set here 

(OFF, 10.0 °C, 10.5 °C … 

35.0

 

°C

 ... 40.0 °C, 

OFF).

Set the temperatures with 

+

 / 

-

 and confirm with 

O

.

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To deactivate the upper or lower limit, set the 

lower temperature limit < 10°C, or the upper 

temperature limit > 40°C with 

+

 / 

-

 . OFF is 

displayed.

H4  HEATING OR COOLING

R

Switching the controller between heating and 

cooling mode:

 

HEATING

 

– COOLING

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Precondition for switching to cooling mode: 

H2 - CONTROL = ON/OFF

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H4 = Heating: If there is an error, heating takes 

place for 30 % of the time. 

H4 = Cooling: If there is an error, the relay 

is off.

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When switching to cooling mode, H6 - FROST 

PROTECTION is automatically set to OFF, 

and H7 - OPTIMUM START is set to NO.

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The switching times and temperatures of 

heating mode are used.

Select with 

+

 / 

-

, confirm with 

O

.

H5  VALVE PROTECTION

R

L

Protection of the valve from seizing after 

long periods with no control. Every 24 hours, 

calculated from the last switch-on of the voltage of 

RESET (H11), the valve is opened for the time set 

here in minutes: OFF, 1, 2, 

3

 … 10.

Set the opening time with 

+

 / 

-

 and confirm with 

O

.

H6  FROST PROTECTION

R F L

Setting the frost protection temperature:

 

For H1 = ROOM or LIMITER:

 

OFF, 

5.0 °C

, 5.5 °C … 30.0 °C

 

For H1 = FLOOR:

 

OFF, 

10.0 °C

, 10.5 °C … 40.0 °C

Press 

+

 / 

-

 to set the temperature and confirm 

with 

O

.

If the temperature falls below the set frost protection 

temperature, heating is turned on.

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To deactivate the frost protection with a button 

-W

select the OFF setting under the lowest 

temperature.

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Frost protection mode is only possible when 

the control is shut off; see user settings: 

G4 - OFF HEATING PERMANENT = YES

H7  ECO SETTING

R F L

Presetting of the ECO temperature:

 

For H1 = ROOM or LIMITER:

 

OFF, 5.0 °C, 5.5 °C … 

18.0 °C

 … 30.0 °C

 

For H1 = FLOOR:

 

OFF, 10.0 °C, 10.5 °C … 

18.0 °C

 … 40.0 °C

Press 

+

 / 

-

 to set the temperature and confirm 

with 

O

.

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The temperature set here is only used when 

the ECO input is activated (see ...).

H8  VALVES NORMALLY OPEN

R

L

Reverse of the relay switching behaviour for using 

actuators that are normally open:

 

YES = 

activated

 

NO

 = deactivated

Select YES/NO with 

+

 / 

-

, confirm with 

O

.

H9  ENERGY COUNTER RESET

R F L

Reset to zero the energy cost meter set under  

G8/G9 (see user settings).

 

YES = 

reset

 

NO

Select YES/NO with 

+

 / 

-

, confirm with 

O

.

H10  FLOOR TEMPERATURE DISPLAY

L

Display of the current floor temperature for service 

purposes.
H11  RESET ALL

R F L

Reset to the defaults all of the settings made in the 

menus for the installer and user.

 

YES = 

reset

 

NO

Select YES/NO with 

+

 / 

-

, confirm with 

O

.

Overview 3: Installer settings

Open the settings menu and make settings

The display shows the menu code H1 in the display 

(8) and, beneath that, the marquee HEATING TYPE.

 

Press 

+

 / 

-

 to select the desired menu.

The menu ID and a help text appear at the 

bottom edge of the display (7) and (11).

 

■ Confirm with 

O

.

The first settable value flashes in the display.

 

Set the desired value by pressing 

+

 / 

-

.

 

■ Confirm with 

O

.

The second settable value flashes.

 

Repeat the aforementioned steps until all the 

values are set.
The display returns to higher-level and displays 

the menu ID.

Appendix

Do not dispose of this product in household 

waste. Dispose of the device in a facility 

designated for electronics waste. 

Consult the local recycling authorities.

C

This symbol confirms that the product is in 

conformance with the relevant guidelines.

Technical data

Operating voltage: 

AC 230 V ~

Rated frequency: 

50 Hz

Output: 

N/O contact relay, non-floating

Switching current 

 

- as a room temperature controller 

  or room temperature controller with limiter:

 

 

10 mA ... 10 (4) A, 230 V~ 

- as a floor temperature controller:

 

 

10 mA ... 16 (4) A, 230 V~ 

Power consumption: 

~ 1.2 W

Degree of protection: 

IP 30

Protection class:  II (with corresponding installation)

Pollution category: 

2

Ambient temperature: 

- Operation: 

0°C to 40 °C (without thawing)

- Storage: 

-20°C to 70°C (without thawing)

Temperature setting range (in increments of 0.5 °C): 

- As a room temperature controller: 

5°C ... 30 °C  

- as a floor temperature controller: 

10°C ... 40 °C

Temperature display: 

In increments of 0.1°C

Output signal: 

Pulse width modulation (PWM)

 

 

or two-point control ( on/off)

PWM cycle time: 

Adjustable (10 ... 30 min)

Hysteresis: 

Adjustable (with two-point control)

Minimum switching time:  

Adjustable (1 ... 30 min)

Rated impulse voltage: 

4 kV

Temperature for the ball thrust test: 

75 ± 2°C

Voltage and current for the EMC  

emitted interference test: 

230 V, 0.1 A

Software class: 

A

Accuracy: 

< 4 min/year

Reserve power: 

~ 10 years (lithium cell)

Help in case of problems

Overviews 4 and 5 describe a few error messages 

and problems as well as probable causes and 

solutions.

Error message/problem

Possible cause

 

– Suggestions for troubleshooting

Display of device errors

Errors in the hardware configuration can be shown 

on the display. In this case, ERR and an error type 

are displayed as marquee text.

ERR CONFIGURATION

The controls and insert do not match.

 

– Only use matching components.

 

Turn the power off and on.

ERR COMMUNICATION

Communication problem between the controls and 

insert.

 

– Remove the controls and put them back on.

 

Turn the power off and on.

ERR  EXT SENSOR

External remote sensor broken/shorted/missing.

 

Check whether the remote sensor is connected.

The limits of the display range are exceeded.

 

– Determine the cause and eliminate it.

Overview 4: Display of device faults

Other problems and operating errors

The room is heating up too slowly.

The floor temperature is limited by the maximum 

limiter.

 

– Adjust the upper limit (H3).
The room temperature is too hot.

The floor temperature is limited by the minimum 

limiter.

 

Adjust the lower limit (H3).

No entries can be made.

Access protection is enabled.

 

– Disable access protection (G6).
The desired temperature cannot be set.

The temperature limitation prevents the desired 

setting.

 

– Adjust the temperature limitation (G7).
The temperature display does not change.

The target temperature display is activated.

 

– Activate the display of the room temperature (G10).

Overview 5: Other problems and operating errors

Accessories

Remote sensor (not included in the delivery)

Type: 

FF 7.8

Length: 

4 m (can be extended up to 50 m)

Wire: 

Flexible, finely stranded

Stripped end: 

8 mm

Fig. 7: External remote sensor

Resistance/temperature table for remote sensor 

FF 7.8

Temperature [°C]

Resistance [k

W

]

 10

 66.8

 20

 41.3

 25

 33

 30

 26.3

 40

 17.0

 50

 11.3

Table 1: Resistance/temperature table for 

remote sensor FF 7.8

Warranty

We reserve the right to modify technical and formal 

characteristics of the product insofar as this supports 

technical progress.

Our products are under guarantee within the scope 

of the statutory provisions.

Please return the device with a description of the 

problem to our Central Service Centre:

ALBRECHT JUNG GMBH & CO. KG

Service Centre

Kupferstr. 17-19

44532 Lünen

Germany

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Only install the temperature controller in non-

conductive plastic flush-mounted boxes with 

a diameter of 60 mm!

 

Align the insert (7) in the appliance box (22).

 

■ Fix the insert with fastening screws (23). 

Install the insert so that the plastic tongue (21) 

functions as insulation against the fastening 

screw (Fig. 5).

(7)

(5)

(1)

Fig. 6: Mounting the controls

 

Mount the design frame (5) and secure by 

attaching the controls (1).

Connecting the remote sensor

A remote sensor can be used instead of the internal 

sensor to measure the room temperature. The menu 

item H1 can be used to select whether the remote 

sensor is to be used.

An external remote sensor is necessary for 

the modes "Floor temperature controller" and 

"Room temperature controller with limiter". 

The remote sensor line carries mains voltage and 

can be extended to 50 m with appropriate lines. 

In order to prevent signal faults, do not run the 

remote sensor line together with power lines. It is 

recommendable to run the remote sensor in ducting.

 

Connect the remote sensor according to the 

connection diagram (Fig. 4, item (20)).

 

■ When inserting and removing the connecting 

line using an appropriate tool, press the release 

buttons (Fig. 4/7, item (24)).

Connecting an external switch to the ECO input

To control the temperature to a preset value 

automatically, it is necessary to connect an external 

switch, e.g. a timer.

 

Connect the connecting line of the external 

switch according to the connection diagram.

 

■ When inserting and removing the connecting 

line using an appropriate tool, press the release 

button (Fig. 4, item (25)).

Information for electrically 

skilled persons

Installation and electrical connection

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DANGER! 

Electric shock from touching live parts. 

Electric shock can be fatal. 

Before working on the device, 

disconnect the connecting lines and 

cover surrounding live parts!

Installation site

The controller should be installed at a location in the 

room which is easily accessible for use.

When using the internal temperature sensor, 

the chosen installation site should:

 

– Enable free circulation of air

 

Not be in a draft (such as an open window or doors)

 

– Not be located behind curtains, cabinets, shelves, 

etc.

 

– Not be exposed to direct sunlight

 

Not be directly influenced by sources of heat

 

Not be adjacent to external walls

 

Be 1.5 m above the floor

Connecting and installing the controller

(7)

(1)

Fig. 3: Remove the controls from the insert

 

Remove the controls (1) from the insert (7).

 

Remove a maximum of 8 mm of the insulation 

from the connecting lines.

Sensor

N

N

L

TRD..231..

AC 230V ~ 50Hz

10(4)A / -R,-L

T40

16(4)A / -F

RTR mit Display

Made in Germany

ECO

L

N 230 V~, 50 Hz

(17)

(18)

(25)

(24)

(20)

Fig. 4: Connection diagram
The connection terminals (18) for mains and 

switching current are designed for solid or flexible 

conductors with cross-sections of 1 to 2.5 mm

2

.

 

Connect the controller according to the 

connection diagram (Fig. 4).

 

If necessary, connect an external remote sensor 

(20) (see "Connecting the external remote 

sensor").

(7)

(22)

(23)

(21)

Fig. 5: Installation

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