NOBO NTB-2R Room and Floor Thermostat Instruction Manual
- June 10, 2024
- NOBO
Table of Contents
OBO NTB-2R Room and Floor Thermostat
Product Information
The NTB-2R Room & Floor Thermostat is a product manufactured by Glen Dimplex Nordic AS. It is designed to control heating systems in residential and commercial buildings. The thermostat is compatible with both room and floor sensors, and features a user interface with four buttons and a slider.
The product has the following technical specifications:
- Rated voltage: 230V~
- Rated current: 16 A
- Protection class: IP21
- Floor sensor (included): 22kOhm, 1-pole, cut-off function
- Radio frequency: 868MHz, max 10mW
The product is compliant with EU Directive 2014/53/EU and should be recycled at the end of its service life.
Product Usage Instructions
Important: The product must only be installed by a certified electrician. The floor sensor must be installed in a tube that is sealed at the end. The product must only be used in installations that are in accordance with current National regulations. If a floor sensor, other than the one included in the package, is used in the installation, please note that the sensor connector is not isolated from live phase. Products with an electronic thermostat cannot guarantee protection against frost damage. Provide extra protection for exposed installations.
Assembly
- Mount the power unit in the wall connection box.
- Place the frame on top of the power unit.
- The interface unit clicks into place inside the frame. Make sure the locking mechanisms are fastened both at the top and the bottom.
Disassembly
Warning: Make sure the product is disconnected from mains before disassembly! The interface unit can be removed using a flat screwdriver. Loosen the locking mechanism both at the top and bottom, and pull out the interface unit. The frame is now loose and can be removed. Loosen the screws on the wall connection box and pull out the power unit.
User Interface
Switch the thermostat on and off by using the slider on the left side. Up = On, Down = Standby. The thermostat has four buttons, one in each corner, with the following symbols:
- Set the desired temperature. Inside the menu, these buttons are used for scrolling up and d wn.
- Will override the current status. Inside the menu, this button takes you back to the previous level.
- Opens the menu. Inside the menu, this button will confirm a selection or setting.
Menu Overview
- Set Clock: Press and hold A and 22 for 5 seconds.
- Day and Clock Setting: Set the day and time.
- Weekly Program: Program the weekly timer.
The product is available in multiple languages including Norsk, Suomi, Italiano, English, Deutsch, and Polski.
Important:
- The floor sensor must be installed in a tube that is sealed at the end.
- The product must only be used in installations that are in accordance with current National regulations.
- If a floor sensor, other than the one included in the package, is used in the installation, please note that the sensor connector is not isolated from live phase.
Sensor functionality
The thermostat has four different sensor functions:
Floor sensor:
- Measures the temperature in the floor.
- Temperature setting 7-40°C.
Room sensor + floor sensor (Wooden floors):
- MUST BE USED for wooden floors and temperature sensitive materials. Measures air and floor temperatures.
- Temperature setting 7-40°C, however the floor temperature is limited to max. 27°C.
Room sensor
- Measures the air temperature in the room. Temperature setting 7-40°C.
Power regulator
Intended for cases where a room or floor sensor is not applicable. The load is
switched on/off between 0-100% within a cycle of 20 minutes.
Settings: 0 – 10 ( 0 = 0%, 5 = 50%, 10 = 100% )
The product must only be installed by a certified electrician
Connect the power unit according to the instructions at the back. Available sensor options are:
- Room sensor (Integrated in the thermostat).
- Floor sensor (External temperature sensor). 22kOhm at 25˚C (default setting) Other compatible floor sensor values:
- 47kOhm at 25˚C 10kOhm at 25˚C
- 15kOhm at 25˚C 2kOhm at
- 25°C 12kOhm at 25˚C
The thermostat automatically detects if a floor sensor is connected, and will then use the default settings Floor sensor (22kOhm at 25˚C). The settings can be changed via the setup wizard or the menu if a sensor with a different value is applied. If the sensor cable has a shield, do not terminate the shield to ground.
Assembly
- Mount the power unit in the wall connection box.
- Place the frame on top of the power unit.
- The interface unit clicks into place inside the frame. Make sure the locking mechanisms are fastened both at the top and the bottom.
Disassembly:
- Make sure the product is disconnected from mains before disassembly!
- The interface unit can be removed using a flat screwdriver. Loosen the locking mechanism both at the top and bottom, and pull out the interface unit. The frame is now loose and can be removed.
- Loosen the screws on the wall connection box and pull out the power unit.
User interface
- Switch the thermostat on and off by using the slider on the left side. (A)
- Up = On
- Down = Stand by.
The thermostat has four buttons, one in each corner, with the following symbols:
- Set the desired temperature.
- Inside the menu, these buttons are used for scrolling up and down.
- Will override the current status.
- Inside the menu, this button takes you back to the previous level.
- Opens the menu.
- Inside the menu, this button will confirm a selection or setting.
- Opens the menu.
- Inside the menu, this button will confirm a selection or setting.
Menu overview
Default settings
Setup wizard
In the case of an installation where the default settings are not appliccable,
the setup wizard can be a useful tool.
Go to “Menu > Advanced > Start wizard” to edit the thermostat settings step by
step.
The settings can later be altered via the menu, or by running the wizard once
more.
Energy Control
- The Thermostat has an integrated radio revceiver for Nobø Energy Control, Nobø Orion 700 and also for direct connection with Nobø Sense MSW magnet switch.
- Connect the thermostat to Nobø Energy Control by using automatic search in the app. Slide the switch from standby to on while the app is searching for units.
- While searching, the thermostat will show its ID-code in the display. The ID-code can be used for manual registration (Orion 700).
- When connected to Nobø Energy Control, the temperature can be set either on the thermostat or via the app. Changes will automatically be syncronised between the thermostat and the app. (Does not apply when in power regulator mode.)
- When connected to Orion 700, temperature settings can be adjusted on the thermostat only.
Setting the day and time
At first startup the thermostat will ask you to set the current day and time
.
- Use the buttons to select the current day.
- Confirm the selection by pressing .
- Next, use the buttons to set the hour (24H clock). Confirm again with . Repeat to set the minutes.
- After a power outage or similar, you may need to set the day and time again. If needed, the thermostat will go directly to the settings screen when the power is turned back on.
- To correct an incorrect day and time setting, enter the “Menu > Set time”.
- The current day and time is hidden when the keylock is on, and when the backlight is dimmed down.
- Day and time setting is unavailable when NTB-2R is connected to Nobø Hub or Orion 700.
Main screen
-
A: Displays the set temperature.
- When operating as a power regulator, the set power output is displayed.
-
B: Icon showing the current mode:
Comfort (Red background)- Eco (Green background)
- Away (Blue background)
- Off (Grey background)
-
C: Thermometer bar showing the measured temperature on the sensor. The small arrow (D) corresponds with the set temperature. The thermometer bar will rise and fall according to the measured room or floor temperature. When the heating element is on, the bar pulsates.
Also see “Calibrate the set temperat
- Overriding the current mode Pressing once will change the thermostat mode from Comfort to Eco, or vice versa. The override lasts until the next change in the thermostat’s weekly program. In the case of a weekly program with no changes, the override will be terminated at 03:00.
- Press again to stop the override manually.
- If the thermostat is connected to Nobø Energy
- Control or Nobø Orion 700, the override will last until a new signal is sent from the energy control system.To end the override manually, press .
- If the current thermostat mode is Away or Off, pressing the override button will change the mode to Comfort.
- When operating as a power regulator, NTB-2R will use the same power output in Away mode as in Eco mode.
Local weekly program
- The thermostat can be programmed with a local weekly program to save energy during periods when you are asleep or away. A weekly program fit for your schedule will save energy without compromising your comfort.
- If the thermostat is connected to Nobø Energy
- Control or Nobø Orion 700, the local weekly program is deactivated. The thermostat will then follow the program from the energy control system.
- To disconnect the thermostat from a Nobø Hub or
- Nobø Orion, NTB-2R must be deleted from the app or from the Orion unit. Next, in the NTB-2R menu, select “Advanced > Nobø Hub > Disconnect Hub”.
- When disconnected, the thermostat will resume the local weekly program.
Setting up a weekly program
A weekly program divides the week into time periods where the thermostat
will be in either Comfort or Eco mode. A time period is defined by setting:
Example
- The day(s) the period should be active.
- When the desired temperature should be reached.
- The mode, Comfort or Eco.
For example:
This period makes sure the desired comfort temperature is reached by 06:00 on
Monday through Friday. The thermostat calculates the startup time in order to
reach the right temperature at the right hour. (Does not apply when in power
regulator mode).A time period lasts until a new time period takes over. All
periods must be defined with a startup time and mode. It is adviced to make a
plan of the time periods needed, before programming the device.
Add a new time period
- Go to “Menu > Weekly program” to add a new time period to the weekly program. Select “+ Add new” to create a new period.
- First, select the day(s) for which the new time period should be active. A group of days (Mo – Fr, Sa – Su,
- Mo – Su), or a single day can be selected. Confirm by pressing .
- Next, set the time for when the desired temperature must be reached. Set the hour and minutes using and . The minutes can be set at 15 min intervals. Confirm with .
- Finally, the mode for the time period is selected.
- This can be either Comfort or Eco. Confirm with .
- The new time period can now be found in the list of active periods in the weekly program
Edit or delete a time period
- To edit or delete a time period in the weekly program, go to “Menu > Weekly program”. From the list of active time periods, select the one you want to edit or delete. Confirm the selection with .
- The next menu offers the choice to “Edit” or “Delete”. Confirm your selection with .
- Selecting “Edit” will take you to the setting of day(s), time and mode selection. Make the adjustments needed and confirm with .
- Deleting a time period will remove it from the weekly program and from the list of active time periods.
Backlight
- When the thermostat is operated, the display will light up to improve visibility. After a little while, the light will dim back down.
- Depending on the room’s brightness, one may wish to adjust the dimmed backlight level of the thermostat. Some rooms may require more light than others.
- To adjust the dimmed level of the backlight, select “Menu > Backlight” and then choose between: Max, Light, Normal, or Dark.
Calibrate the set temperature
The set temperature may deviate from the actual temperature depending on
thermal insulation, ventilation, thermostat position etc. If the set
temperature deviates significantly from the measured room or floor
temperature, the set temperature can be calibrated up to +/- 5°.
Important:
- The temperature in the room/floor must be stabilized in Comfort or Eco mode before calibrating the set temperature.
- When the temperature is stable, enter the menu and select: “Advanced > Calibrate”.
- The current set temperature is shown in the display.
- Press or to adjust the set temperature according to the measured temperature.
- Confirm the calibration by pressing .
Technical data
- Rated voltage: 230V~
- Rated current: 16 A
- Protection class : IP21
- Floor sensor (included): NTC, 22kOhm at 25˚C
- Cut-off function: 1-pole
- Radio frequency: 868MHz, max 10mW
- Ambient temperature-operation: -40˚C to +40˚C
Warning
Products with an electronic thermostat cannot guarantee protection against
frost damage. Provide extra protection for exposed installations.At the end of
its service life, the product must be recycled
Declaration of Conformity (DoC)
Glen Dimplex Nordic AS declares that the equipment described in this user guide, is in compliance with the essential requirements and other relevant provisions of EU Directive 2014/53/EU. If you require a copy of the original signed DoC, please send an e-mail to: [email protected]
Barn Road, Dunleer, Co Louth, A92 EH7P, Ireland