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Installation

E

D

B

A

F

Load

1 2

4

3

N   L

5

6

N

TC

L1

N1

Load

1.  To remove the front panel, slide the front part with the display upwards (A). The two parts 

are connected by a ribbon cable (B)

 

The ribbon cable can be disconnected if needed. Be careful not to damage it.

2.  On the back of the wall thermostat (C) there are 6 terminals for connecting the:

 - The main power supply
 - Electrical load
 - External NTC temperature sensor

•  Connect the mains power supply to the corresponding inputs 3 and 4. 
•  Connect the load (e.g., an electric radiator or electric floor heating) to corresponding outputs 

1 and 2. 

  If the load requires a protective earth connection it must be connected separately. 

The thermostat complies with protection class II and does not by itself require a 

protective earth connection.

3.  If using an external temperature sensor (probe), it should be connected to terminals 5 and 6 

(C). There is no polarity so it does not matter which way you connect the wires.

  When laying out the connection cable, make sure it is protected from sharp edges. 

Never fasten the connection cable with nails, screws or similar.

4.  Insert the wall thermostat into the flush-mounted/ surface-mounted box and fasten it using 

the included screws (D).

  Make sure that the cables are not damaged when inserting the wall thermostat into 

the flush-mounted/surface-mounted box.

5.  Reconnect the ribbon cable if needed. It can only be connected on way, do not use force 

when plugging in!

6.  Align the front panel (E) and push it down (F). It should lock into place.
7.  Switch on the voltage supply. 
8.  The wall thermostat is now operational.

Operating elements

a) Display

1

2

3
4
5

6

7

8

10

11

12

9

1  Six period program
2  External sensor active
3  Automatic mode
4  Manual mode
5  Holiday mode 
6  Time
7  Weekday (1 = Monday, 7 = Sunday)

8  Target temperature setting
9  Open window (activated)
10 Measured temperature 

(internal or external probe)

11 Keypad lock
12 Heating

b) Icons

Icon

Description

Icon

Description

Visible when the keypad is locked. 

Disappears when keypad is unlocked.

Auto mode: Weekly schedule program 

is running.

Visible when heating is ON. 

Disappears when heating is OFF.

Manual mode.

The open window icon shows if it has 

been activated.

Auto mode temporary manual 

override.

External NTC sensor (probe) 

temperature shown. 

Advanced setting "N2” should be set: 

"Advanced settings" → "BN" → "N2".

Holiday mode: Set the number of days 

you will be away and a temperature.

c) Button functions

Button

Function

Power ON / OFF.

•  Press to switch between “auto” and “manual” mode.
•  Advanced options setting: Turn power off, then press and hold 3 - 5 sec.
•  Programmable setting: Turn power on, then press and hold 3 - 5 sec.
•  With the power off, press and hold for approx. 3 - 5 secs to enter general settings. 
•  Confirms a setting.
•  During normal operation press to set the time and day of week.
•  During normal operation, press and hold 3 - 5 sec to enter “holiday mode” settings..
•  With the power off, press and hold for approx. 3 - 5 secs to enter advanced settings. 
•  Press to increase a value.
•  Press and hold to display the temperature measured by the external temperature sensor. 

 - External sensor should be connected.
 - Advanced setting “N3” should be enabled. Refer to "Advanced settings" → "BN" → 

"N3".

•  Press to temporarily override “auto” mode and increase the temperature (auto settings 

will be retained when exiting manual override).

•  Press to decrease value.
•  Press and hold to activate/deactivate the keypad lock.
•  Press to temporarily override “auto” mode and increase the temperature (auto settings 

will be retained when exiting manual override).

Summary of Contents for 2250409

Page 1: ... poles from the mains voltage Secure it against unauthorised reconnec tion e g with a warning sign Check to make sure there is no voltage with a suit able measuring instrument e g a digital multimeter Never connect the product to the power supply immediately after it has been trans ferred from a cold room into a warm one e g during transport The condensation that forms might destroy the device Mor...

Page 2: ...od program 2 External sensor active 3 Automatic mode 4 Manual mode 5 Holiday mode 6 Time 7 Weekday 1 Monday 7 Sunday 8 Target temperature setting 9 Open window activated 10 Measured temperature internal or external probe 11 Keypad lock 12 Heating b Icons Icon Description Icon Description Visible when the keypad is locked Disappears when keypad is unlocked Auto mode Weekly schedule program is runni...

Page 3: ...The symbol shows on the display to indicate that holiday mode is active Exit holiday mode Press to exit holiday mode and return to manual or auto mode Weekly schedule program a Overview 6 time periods You can configure temperature settings for 6 time periods throughout the day An icon will indicate which time period is active Default times and temperatures for each period are shown below 1 Wake up...

Page 4: ...n the display AD Ventilation mode working time Setting range 10 20 minutes Default 10 mins AE Reset all settings to defaults Press and hold OK for approx 3 5 secs until all segments show on the display The power will turn off when all settings have been reset b Advanced 1 Press to turn the power OFF 2 Press and hold for approx 3 5 secs to enter advanced settings mode Press to toggle through settin...

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