Room thermostat II help

### Using the sensor input on the Room thermostat II (battery)

The sensor input on the Room thermostat II enables the connection of an external temperature sensor. Here is the most important information:

#### Functions of the sensor input:

External temperature sensor: You can connect a cable with an external temperature sensor of type NTC 10 kOhm to measure the temperature at a different location, such as on the floor.

Floor sensor: The external sensor can be used specifically as a floor sensor to monitor the floor temperature

#### Accessories:

Sensor cable: The sensor cable of type NTC 10 kOhm is available as an optional accessory in the Bosch Smart Home e-shop.

By using an external temperature sensor, you can make temperature measurement more flexible and adapt it to your needs.

### Installation of the Bosch Smart Home Room thermostat II (battery)

#### Required materials

• Bosch Smart Home App
• Accessories from the Room thermostat II (battery) packaging

#### Step-by-step instructions

#####Preparation

Download the Bosch Smart Home App to your smartphone.

Open the packaging and prepare the accessories.

#####Start Bosch Smart Home App

Open the Bosch Smart Home App on your smartphone.

The Smart Home App will automatically guide you through the individual installation steps.

#####Follow instructions

Follow the instructions in the Smart Home App precisely.

Further details and information can be found in the enclosedOperating instructions.

#### Tips

Make sure your smartphone is connected to the internet.

Keep the Bosch Smart Home Room thermostat II and accessories within easy reach.

#### Further support

If you have any questions or problems, you can consult the operating instructions at any time or contact

Customer Support

.

### Bosch Smart Home Room thermostat II:

Protection class: IP 20

First digit "2": Protected against solid foreign objects with a diameter of less than 12.5 mm and against access with a finger.

Second digit "0": No protection against water and moisture.

### Bosch Smart Home Room thermostat II 230 V:

Protection class: IP 21

First digit "2": Protected against solid foreign objects with a diameter of less than 12.5 mm and against access with a finger.

Second digit "1": Protected against vertically falling dripping water.

##### Installation notes:

Room thermostat II (IP 20):

Do not install in damp or wet environments.

Suitable for dry indoor spaces.

Room thermostat II 230 V (IP 21):

Can be installed in environments where it is occasionally exposed to vertically falling dripping water.

Not suitable for use in areas with high humidity or direct water contact.

#### Summary:

The Room thermostat II is not protected against water and moisture and should only be used in dry indoor spaces.

The Room thermostat II 230 V offers limited protection against vertically falling dripping water and can be installed in slightly humid environments, but not in areas with high humidity or direct water contact.

### Error code E02 on the Bosch Smart Home Room thermostat II (battery)

#### What does error code E02 mean?

Error code E02 is displayed together with a red flashing of the light ring on the Room thermostat II 230V. This error indicates a problem with the internal temperature sensor.

#### Troubleshooting steps

Check the external temperature sensor:

Are you using an external temperature sensor (e.g. floor sensor or outdoor temperature sensor)?

If yes, make sure that the temperature sensor is connected correctly.

Check settings:

If no external temperature sensor is used, go to the device settings of the Room thermostat II 230V.

Change the sensor connection setting to"Not used".

These steps should resolve error code E02.

Your Room thermostat II / Room thermostat II 230 V is still functional. It only logs on to the Smart Home controller again after a short time.

### Connecting radiator thermostats to a Room thermostat II

#### Compatibility and quantity

Radiator thermostat II: You can connect any number of Radiator thermostat II to a Room thermostat II.

Radiator thermostats I: These are no longer compatible with the Room thermostat II.

#### Device configuration

If you have connected multiple Radiator thermostat II to a Room thermostat II, you can view the overview of controlled devices on the device configuration page of the Room thermostat II.

#### Requirements and installation

Requirements: Make sure you only use Radiator thermostat II, as the older models (Radiator thermostats I) are not supported.

Installation: Follow the instructions in the user manual of your Room thermostat II to correctly connect and configure the Radiator thermostat II.

This way you can ensure that your Room thermostat II works optimally with the Radiator thermostat II.

### Activating the child lock on the Room thermostat II / Room thermostat II 230 V

You can activate the child lock of your Room thermostat II in two ways: via the Bosch Smart Home App or directly on the device.

1.Activation via the Bosch Smart Home App:

Follow these steps:

• Open the Bosch Smart Home App.
• Go to the device settings.
• Select the corresponding Room thermostat II / Room thermostat II 230 V.
• Set the "Child lock" option to "on".

2. Activation directly on the Room thermostat II:

Follow these steps:

• Press the system button on the room thermostat for 3 seconds.
• Keep the button pressed until the display shows "LCK".
• The child lock is now activated.

### Meaning of the pause symbol in the room thermostat II / room thermostat II 230V

What does the pause symbol indicate?

The pause symbol in the display of the room thermostat II / room thermostat II 230V indicates that the valve is being closed and no regulation is taking place. This occurs, for example, when the "heating pause" is active in the "Climate Manager" service.

Function details:

Heating pause:

When the "heating pause" is activated, the valve is closed and the heating regulation is paused.

This can be useful to save energy when heating is not needed.

Frost protection function:

Despite the heating pause, the frost protection function remains active.

This function prevents the room temperature from falling below a certain value to avoid frost damage.

Anti-calcification protection:

The anti-calcification protection also remains active.

This function ensures that the valve is moved regularly to prevent calcification and maintain functionality.

### Connecting radiator thermostats to a Room thermostat II

#### Compatibility and quantity

Radiator thermostat II: You can connect any number of Radiator thermostat II to a Room thermostat II.

Radiator thermostats I: These are no longer compatible with the Room thermostat II.

#### Device configuration

If you have connected multiple Radiator thermostat II to a Room thermostat II, you can view the overview of controlled devices on the device configuration page of the Room thermostat II.

#### Requirements and installation

Requirements: Make sure you only use Radiator thermostat II, as the older models (Radiator thermostats I) are not supported.

Installation: Follow the instructions in the user manual of your Room thermostat II to correctly connect and configure the Radiator thermostat II.

This way you can ensure that your Room thermostat II works optimally with the Radiator thermostat II.

### Historical Data of the Room thermostat II

#### Availability in the Bosch Smart Home App

Currently, the Bosch Smart Home App does not display historical data for the Room thermostat II.

#### Alternative: Third-Party Apps

You may be able to view historical data of our Bosch Smart Home devices in third-party apps. Here are some options:

Apple HomeKit: This app might display historical data for you.

Home Assistant: This platform may also provide access to historical data.

Please check the respective apps to see if they provide the desired information.

### Display of humidity measured by the Room thermostat II

Requirements:

A Bosch Room thermostat II

The Bosch Smart Home App

Installation:

Ensure that the room thermostat is correctly installed and connected to your Bosch Smart Home system.

Measured value display:

Directly on the Room thermostat II: The measured humidity is displayed directly on the display of the room thermostat.

In the Bosch Smart Home App: You can also view the humidity in the Bosch Smart Home App under the room overview.

This way you always have the humidity in view and can ensure a pleasant room climate.

### Battery Life of the Room thermostat II

The batteries of the Room thermostat II last approximately 1 year with typical use.

#### Notes on Battery Monitoring

Early warning: If the battery capacity drops below a critical level, you will receive a notification via the Bosch Smart Home App.

Display on the device: The display of the Room thermostat II shows a battery symbol and the LED starts flashing red when the batteries are almost empty.

Please replace the batteries as soon as you notice these warnings to ensure uninterrupted operation of the thermostat.

### Resetting the Room thermostat II to factory settings

If you want to reset your Room thermostat II to factory settings, follow these steps:You can restore the device as follows:

Open battery compartment: Open the battery compartment of the Room thermostat II and remove one of the batteries.

Press rotary knob: Press and hold the rotary knob.

Insert battery: Reinsert the battery while holding the rotary knob pressed.

Observe status LED: Keep the button pressed until the status LED of the Room thermostat II flashes orange and "RES" is displayed on the screen.

Release button and press again:Now release briefly and press and hold the button again until the LED lights up green.

Restart:The device will then restart. Please note that it may take a few seconds until the Room thermostat II is ready for operation again.

Important note:

When resetting to factory settings, only the settings and information on the device are lost, not on the Bosch Smart Home Controller.

Re-pairing: To re-pair the device, first delete it in the device management of the Bosch Smart Home App and then add it again via the usual pairing process.

Please also refer to the video instructions for reset on the Bosch Smart Home YouTube channel:

link

Under Menu >> Services >> Climate Manager >> Heating Pause & Cooling, you can activate or deactivate the heating pause for each room.

Effect of the heating pause:

Display:After activation, the heating pause is indicated by a pause symbol on the display of the corresponding thermostats and a notification in the Smart Home app.

Function:The thermostats will then be switched off, e.g. in summer.

Scenarios and automations:They will then ignore the temperature settings for the corresponding room.

### Activating the lighting on the Room thermostat II / Room thermostat II 230 V

To activate the lighting of your Bosch Smart Home Room thermostat II or Room thermostat II 230 V, proceed as follows:

Room thermostat II: Press the system button on the control unit briefly.

Room thermostat II 230 V: Press or turn the system button on the control unit briefly.

These simple steps ensure that the display of your room thermostat is illuminated.

### Controlling the radiator thermostat I with the Room thermostat II

**Question:** Can I control the radiator thermostat I on the Smart Home Controller I with the Room thermostat II?

**Answer:** Unfortunately, the Room thermostat II and the radiator thermostat I are not fully compatible.

- **Compatibility:** Both devices can be paired with the controller, but full functionality is not guaranteed.

- **Recommendation:** For optimal use, we recommend the Bosch Smart Home Room thermostat I.

We hope this information helps you!

###Bosch Smart Home Room thermostat II

The Bosch Smart Home Room thermostat II is an ideal addition to your Radiator thermostat II. It offers you more flexibility and precision in temperature control in your home.

####Features

Flexible placement: The Room thermostat II can be placed anywhere in the room, not just directly on the radiator.

Precise temperature measurement: Measure the temperature where it matters most to you, especially in large rooms or with concealed radiators.

Energy savings: Heat the room only as much as necessary and save energy in the process.

Increased comfort: Enjoy a more comfortable room temperature through more precise control.

####Requirements

Radiator thermostat II: The Room thermostat II works optimally in combination with the Bosch Radiator thermostat II.

Bosch Smart Home System: To use the Room thermostat II, you need the Bosch Smart Home System.

With the Bosch Smart Home Room thermostat II, you can optimize your heating control while saving energy.

Radio standard:

Both thermostats, the Room thermostat II and the Room thermostat II 230 V, communicate with the Bosch Smart Home Controller via the Zigbee radio standard (2.4 GHz).

Requirements:

A Bosch Smart Home Controller

A stable Zigbee connection between the Room thermostat II and the Controller. Can be optimized, for example, by the Bosch Smart Home compact plug-in switch.

Advantages of Zigbee:

Energy-efficient: Zigbee is known for its low energy consumption, which extends the battery life of the devices.

Reliable: Zigbee provides a stable and secure connection for your Smart Home devices.

Expandable: You can easily expand your Zigbee network by adding more compatible devices.

Both Room thermostat II models offer reliable and wireless communication with your Bosch Smart Home System to ensure a comfortable and well-regulated room climate.

###Differences between Room thermostat II and Room thermostat II 230 V

####Room thermostat II 230 V

Power supply: Requires a 230V power supply.

Switching actuator: Features a switching actuator (relay) to switch heat generators with wired control. This can be done with or without potential.

####Room thermostat II

Power supply: Operates on 4x AAA batteries

Switching actuator: Does not have its own switching actuator (relay). It can only send information to other smart devices wirelessly via the Bosch Smart Home Controller.

Both room thermostats offer different solutions depending on the specific requirements of your heating control.

###Delivery scope of the Bosch Smart Home Room thermostat II

The delivery scope of the Bosch Smart Home Room thermostat II includes:

1 x Room thermostat II with battery power supply
4 x AAA battery
1 x Wall mounting plate
1 x Stand base
1 x Set for adhesive mounting
Warranty and legal information

####Additional information

For further details on the delivery scope, please visit the product page of the Bosch Smart Home Room thermostat II in our webshopLink.

###Different measured values for Room thermostat II and Twinguard

It is possible that the Room thermostat II 230 V, the Room thermostat II and the Twinguard measure different temperatures and humidity levels in the same room. Here are the reasons for this:

####1. Different positions in the room

Ceiling, wall, window, doors: The devices may be located at different positions in the room. Temperature and humidity can vary depending on proximity to windows, doors or radiators.

####2. Measurement tolerances

Device-specific tolerances: Each device has its own measurement tolerances. These small deviations can lead to different measured values.

####3. Local conditions

Air circulation and heat sources: Different air circulation and heat sources in the room can influence the measured values. For example, a device near a radiator can measure higher temperatures.