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Operation

a) Power ON/OFF

•  Press the   button to switch the wall thermostat ON or OFF.
•  When the thermostat is switched off, the display goes out and no temperature control takes 

place.

b) Set time and weekday

 

The wall thermostat must first be on and in normal operating mode (exit "System set-

tings"). Settings will exit and be saved if no keys are pressed for approx. 10 seconds.

1.  Press   and the minutes will flash.

 

 - Press   or   to adjust values.
 - Press   to save the setting.

2.  Adjust the hours:

 - Press   or   to adjust values.
 - Press   to save the setting.

3.  Adjust the day of week (1 = Monday... 7 = Sunday). 

 - Press   or   to adjust values.
 - Press   to save the setting.

4.  Settings will be saved and the thermostat will returns to normal operation.

c) Switch between automatic and manual mode

  The wall thermostat must first be on and in normal operating mode (exit "System 

settings"). 

1.  Press   to switch between automatic   and manual mode  .

 - Automatic mode: The temperature settings will be based the active program preset.
 - Manual mode: The temperature can be set manually using the   or   buttons.

d) Manual override automatic mode

  The wall thermostat must first be on and in normal operating mode (exit "System 

settings"). 

•  If a different temperature is temporarily needed during automatic mode, you can set it using 

the   or   buttons. Both the   and   symbols will show on the display.

•  The manual override remains active until the automatic mode setting reaches the next time 

interval. When that happens:

 - The manual override will be disabled the thermostat will return to automatic mode. 
 - The   symbol will disappear.

e) Keypad lock

•  Press and hold   for approx. 5 seconds to turn the parental control lock ON / OFF.
•  The   lock symbol will show to indicate that the parental lock is ON.

  Depending on the "System settings" → "General" → “A3”, two different parental 

control locks are possible:

 

0 = All buttons except the power   button will be locked.

 

1 = All buttons will be locked.

Holiday mode

  The wall thermostat must first be on and in normal operating mode (exit "System 

settings"). Use holiday mode to set a time and temperature for the days you will be 

away.

Activate
1.  Press and hold   for approx. 3 - 5 seconds until the   symbol shows on the display. 
2.  Turn holiday mode "on".

 - Press   or   to adjust values.
 - Press   to save the setting.

3.  Set the number of days you will be away "1 - 30".

 - Press   or   to adjust values.
 - Press   to save the setting.

4.  Set the temperature.

 - Press   or   to adjust values.
 - Press   to save the setting.

5.  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

2: Outdoor

3: Home

4: Outdoor

5: Home

6: Sleep

06:00 

08:00

11:30

13:30

17:00

22:00

20 °C

15 

°C

15 °C

15 °C

15 °C

15 °C

Weekday intervals

  Weekday intervals are based on the selected program. Refer to section "System 

settings" → "General" → “A6".

Program Icon

Weekday interval

0

5 days same / 2 days same

1

6 days same / 1 day same

2

7 days same

b)  Program a weekly schedule

General setting
1.  Press   to turn the power OFF.
2.  Press and hold   for approx. 3 - 5 secs to enter settings mode.
3.  Press SET to toggle to setting "A6".
4.  Press   /   to select a program (0, 1, 2).
5.  Press   to exit settings mode. Settings will also be saved if no buttons are pressed for 

approx. 10 sec.

Program a schedule
1.  Press power   to turn the power ON.
2.  If the backlight is off, press   to turn it on, then press and hold   for approx. 3 - 5 secs 

to enter settings mode. 

  The first period icon "1: Wake up" will show, and the time will flash.

3.  Set the time (hours: minutes)

 - Press   or   to adjust values.
 - Press   to save and set the next value.

4.  Set the temperature

 - Press   or   to adjust values.
 - Press   to save and set the next period

  The next period icon "2: Outdoor" will show, and the time will flash.

5.  Repeat steps 3 and 4 to set all 6 periods for the day.
6.  Settings will be saved if no buttons are pressed for approx. 10 sec. 

c) Switch programmed schedule ON/OFF

•  Press   to switch the programmed schedule ON or OFF. 
•  The   icon appears when the programmed schedule is ON.

System settings and defaults

Adjusting system settings may cause your thermostat to behave unexpectedly. Read the in-

structions carefully before adjusting any settings. Refer to section "Troubleshooting" for further 

information.

a) General

1.  Press   to turn the power OFF.
2.  Press and hold   for approx. 3 - 5 secs to enter general settings mode. 

 - Press   to toggle through settings "A1" to "AE".
 - Press   /   to adjust values. 

3.  Press   to exit settings mode. Settings will also be saved if no buttons are pressed for 

approx. 10 sec.

Description

Settings / defaults

A1

Temperature offset

Setting range: -9 to +9 °C; Default: Measured temperature ±0.5 °C

A2

Switching differential 

(hysteresis)

Setting range: 0.5 to 5 °C; Default: 1 °C 
Example: For a setting of 1 °C and the thermostat temperature set to 

20 °C, the thermostat will switch heating on at 19 °C and off at 21 °C.

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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