Underfloor-heating room thermostat 230V help

If the display of your room thermostat remains blank, proceed as follows:

Check power connection: Have the power connection of the flush-mounted unit checked bya qualified electrician to ensure that the unit is correctly connected.

Remove control unit: Carefully remove the control unit from the flush-mounted unit.

Press control button:Press the control button of the control unit several times for several seconds.

Reinstall control unit:Carefully place the control unit back onto the flush-mounted unit.

Contact service:If the display remains blank, please contact our service team for further assistance.

These steps will help you safely and professionally resolve possible installation problems.

Power supply:If the power supply is compatible with our Underfloor-heating room thermostat 230V and the actuators are controlled via cable, there are no known incompatible water-based underfloor heating systems.

Incompatible:Systems without a cable connection between actuator and thermostat cannot be controlled.

Current status:Currently, we cannot yet offer you historical data on the progression of the room thermostat.

Future planning:Since this is a frequent customer requirement, we plan to introduce this feature in the medium term.

A room thermostat for underfloor heating can be used for multiple rooms under certain conditions. Here are the details:

1. Control via the actuator

Manifold: The smart thermostats for underfloor heating control the actuator on the manifold.

Multiple heating loops: In some systems, multiple heating loops are controlled via one actuator, which do not necessarily have to run in the same room.

2. Open room concepts

Open ground floor: In open room concepts without partition walls (e.g., an open ground floor), multiple heating loops can be controlled by one actuator, even if they extend across multiple rooms.

3. Subsequent room separation

Heating loop across multiple rooms: If a heating loop is subsequently routed across multiple rooms (e.g., when an open kitchen is separated from the living room by a wall), a room thermostat can control this heating loop.

Summary

- Multiple heating loops: A room thermostat can control multiple heating loops if they run via the same actuator on the manifold.

- Open room concepts: In open room concepts without partition walls, control across multiple rooms is possible.

- Subsequent room separation: A heating loop that is subsequently routed across multiple rooms can also be controlled by a room thermostat.

1. Wait at least 24h

Automatic registration: Your Room thermostat is still functional and will usually automatically reconnect to the Smart Home Controller after a short time.

Change temperature on the device: If you change the temperature on the Bosch Smart Home Room thermostat, the device will attempt to send its status to the Bosch Smart Home Controller.

2. Troubleshooting for prolonged unavailability

Restart Bosch Smart Home Controller: If the problem persists and the Room thermostat does not reconnect, briefly unplug the Bosch Smart Home Controller and plug it back in.

Summary

Short waiting period: First wait a short time, as the Room thermostat normally reconnects automatically.

Controller restart: If problems persist, restart the Bosch Smart Home Controller.

The room thermostat for underfloor heating uses a proprietary radio standard in the frequency range around 868 MHz.

Summary

- Radio standard: Proprietary radio standard

- Frequency range: Around 868 MHz

No, the room thermostat cannot be accidentally mounted upside down. Here are some tips for correct mounting:

1. Orientation using the display

Display as orientation: The display of the room thermostat is designed so that it is not readable if the thermostat is mounted upside down.

2. Fastening the flush-mounted unit

Pay attention to labeling: When fastening the flush-mounted unit, pay attention to the labeling. The Bosch logo should be readable.

3. Attaching the control unit

Use guide elements: When attaching the control unit, pay attention to the guide elements on the flush-mounted unit.

Proceed carefully: Proceed carefully to avoid damaging the contact pins on the back.

Summary

- Display as orientation: The display prevents incorrect mounting.

- Pay attention to labeling: The Bosch logo should be readable.

- Use guide elements: Pay attention to the guide elements and proceed carefully.

To determine whether you need the 230V version or the 24V version of the room thermostat for your underfloor heating, proceed as follows:

1. Check the valve's type plate

Read the type plate: Look at the type plate of the valve to be controlled. There you will find the information whether it is a 230V or 24V installation.

2. Consult a qualified electrician

Engage qualified personnel: If you are unsure, please contact a qualified electrician. They can measure the output voltage on the device.

Summary

- Check the type plate: Read the valve's type plate to determine the required voltage (230V or 24V).

- Consult a qualified electrician: If in doubt, contact qualified personnel.

To set the appropriate valves for your underfloor heating, follow these steps:

Without connection to the Smart Home Controller

Open configuration menu: Press the control dial of the room thermostat for 5 seconds until the configuration menu appears.

Set valve type:Select the appropriate valve type or change it as needed.

With connection to the Smart Home System

Open Smart Home App: Open the app that is connected to your Smart Home System.

Access device settings: Go to the device settings of the room thermostat.

Adjust valve type: Adjust the valve type according to your needs.

Important Notes

Heating pause & Cooling: Remember that depending on the season and usage, you can select the appropriate mode for each room (Heating, Heating pause, Cooling).

Favorites icon: Use the favorites in the app to quickly see which mode is active.

These steps will help you optimally set the valves of your underfloor heating and maximize comfort in your home.

To set the radiator type of your system, follow these steps:

Open Bosch Smart Home app: Open the Smart Home app on your smartphone or tablet.

Access device configuration page:

- Go to the "Devices" menu item.

- Select the corresponding room thermostat.

Set radiator type: On the device configuration page, you can set the radiator type of your system.

Summary

-Bosch Smart Home app: Use the app to make the settings.

- Device configuration page: Access the device configuration page and select the room thermostat.

- Set radiator type: Make the adjustments.

These steps will help you correctly set the radiator type of your system.

To determine the valve type of your underfloor heating, you can use the following methods:

Method 1:Heating installer or type plate

Ask heating installer:Contact your heating installer to find out the valve type.

Check type plate:Check the type plate of your valve in the heating circuit distributor. There you will find the necessary information.

Method 2: Connect and test thermostat

Connect thermostat: Connect the room thermostat to the valve.

Set temperature to maximum:Set the temperature on the thermostat to maximum.

Wait:Wait several minutes.

Does it get warm?: If it gets warm, you have the correct valve type.

Does it not get warm?: If it does not get warm, you must select the alternative valve type (normally closed/open) in the device settings.

Important notes

Device settings:After connecting to the Smart Home System, you can adjust the valve type at any time in the app via the device settings.

Availability: Please note that some functions and products may only be available in Germany and Austria.

These steps will help you determine the correct valve type for your underfloor heating and ensure that your heating system functions optimally.

If your underfloor-heating room thermostat displays a battery symbol, this means that the power supply is currently interrupted.

Steps to resolve

Check power supply:

- Check whether the room thermostat is correctly connected to the power supply.

- Ensure that no fuses have been tripped and all cable connections are intact.

Restore power supply:

- If the power supply is interrupted, restore it by checking the corresponding fuses and switching them on if necessary.

Important note

Commission a specialist company: Since this is a 230V product, installation and inspection of the wiring may only be carried out by a qualified electrician.

Summary

- Battery symbol: Indicates that the power supply is interrupted.

- Check power supply: Check the fuses and have the wiring inspected.

- Specialist company: Have the work carried out by a qualified electrician.

To set the flow temperature of your underfloor heating, follow these steps:

Open Bosch Smart Home App: Open the Bosch Smart Home App on your smartphone or tablet.

Access device configuration page:

- Go to the "Devices" menu item.

- Select the corresponding room thermostat for your underfloor heating.

Set flow temperature:On the device configuration page, you can adjust the flow temperature of your underfloor heating.

Important Notes

Low energy operation:If you operate your underfloor heating with a low flow temperature, make sure that the set temperature meets the requirements of your heating system.

Summary

- Bosch Smart Home App: Use the Bosch Smart Home App to make the settings.

- Device configuration page: Access the device configuration page and select the room thermostat.

- Set flow temperature: Adjust the flow temperature accordingly.

These steps will help you correctly set the flow temperature of your underfloor heating.

When "OFF" is displayed on the room thermostat for underfloor heating, it means:

- The valve is closed.

- No temperature control is taking place.

- This is the case, for example, when the "Summer Break" service is activated.

Important Notes

Frost protection function:This remains active to prevent freezing.

Calcification protection: This protection also remains active to protect the valve from calcification.

Requirements

Flush-mounted box: Ensure that there is a flush-mounted box with a depth of at least 50 mm behind the existing thermostat.

Electrician: If no suitable flush-mounted box is available, please consult a qualified electrician to have a suitable flush-mounted box installed. This is required for the installation of 230V devices anyway.

Installation assistance

Installation video: Watch our installation video linked in this article. If you experience problems displaying the video, you can also find our installation and reset videos on our Bosch Smart Home YouTube Channel at the following link.

If you want to reset your room thermostat to factory settings, proceed as follows:

Remove control unit: Carefully remove the control unit from the flush-mounted component.

Press control knob: Reinsert the control unit while holding down the control knob until "res" appears on the display.

Confirm: Briefly release the control knob and press it again until the LED flashes green.

Restart: The device will then restart and is reset to factory settings.

To set the radiator type of your system, use the Bosch Smart Home App. Proceed as follows:

Open app:Start the Bosch Smart Home App on your smartphone or tablet.

Access menu:Navigate to Menu > Management > Devices.

Select room thermostat:Select the corresponding room thermostat from your device list.

Set radiator type:On the device configuration page, you can adjust the radiator type of your system.

This setting enables optimal adaptation of the thermostat to your heating system.

Setting the target temperature for underfloor heating

The target temperature of your underfloor heating can be set in two simple ways: directly on the room thermostat or via the Bosch Smart Home App.

1. Setting directly on the room thermostat

Use control dial: Turn the control dial on the room thermostat to set the desired target temperature.

Display: The display shows the actual temperature by default. As soon as you change the target temperature, it is briefly displayed before the display switches back to the actual temperature.

2. Setting via the Bosch Smart Home App

Add favorites: Add the room thermostat to your favorites in the app for quick access.

Set temperature: Click on the thermostat in the app and set the desired target temperature.

Summary

The target temperature of your underfloor heating can be set either directly on the control dial of the room thermostat or conveniently via the Bosch Smart Home App. The app offers additional convenience, especially if you add the thermostat to your favorites.

To activate the child lock, follow these steps:

Open Bosch Smart Home App: Start the app on your smartphone or tablet.

Access menu: Navigate to Menu > Management > Devices.

Select room thermostat: Select the room thermostat you want to secure.

Activate child lock:Set the "Child lock" option to "on".

With these simple steps, you protect your room thermostat settings from unwanted changes.

Default display:By default, the measured actual temperature is displayed on the screen. This shows the current room temperature.

Setting the set temperature:When you turn the control dial, you can set the desiredSet temperature. This is briefly shown on the display before the device automatically switches back to displaying the actual temperature.

This way, you always maintain control over the current room temperature and can easily adjust the desired temperature.

Controlling the room thermostat via the Twist

The room thermostatcannot be controlled directly via the Twist. However, the Twist enables central setting of the target temperature for all heating-relevant devices, including the room thermostat. Here is the most important information:

Functions of the Twist

Set target value: Via the Twist, you can set the desired room temperature for all connected heating devices. This target value is automatically transmitted to the room thermostat and other heating-relevant devices.

Temperature adjustment:

Short press: Increases or decreases the temperature by 0.5°C.

Long press: Increases or decreases the temperature by 2°C.

Prerequisite: The room control function must be set up on the Twist for the temperature control to work.

Important notes

The Twist controls the room thermostat indirectly by specifying the target temperature for the entire system.

Summary

The Twist cannot directly control the room thermostat, but serves to centrally set the target temperature for all heating-relevant devices. The prerequisite is that room control has been set up as a function on the Twist.

Troubleshooting: Underfloor-heating room thermostat 230V not reachable

If your underfloor-heating room thermostat 230V is not reachable, you can perform the following steps to resolve the issue:

1. Check the display

Error messages: Check if the display of the room thermostat shows an error message.

Instructions: Follow the corresponding instructions in the user manual to resolve the errors.

2. Check power supply

Interruption: If no display appears on the screen, the power supply may be interrupted.

3. Check signal strength

Range: Make sure that the room thermostat is within range of the Bosch Smart Home Controller.

Universal Switch: If the signal strength is insufficient, a Bosch Smart Home Universal Switch can help as a signal amplifier.

4. Restart the Smart Home Controller

Restart the Bosch Smart Home Controller to resolve possible connection issues.

5. Reset the room thermostat

If the problem persists, reset the room thermostat to factory settings. Follow the steps described above for the reset:

Remove battery.

Reinsert battery and hold the control dial pressed.

Wait until "rES" appears on the display and complete the reset.

Summary

Check the power supply, signal strength, and possible error messages on the display. If necessary, restart the Smart Home Controller or reset the room thermostat. A Bosch Smart Home Universal Switch can help improve the range.

To turn off your smart underfloor heating in summer and activate summer mode, follow these steps:

1. Activate summer mode

Open Bosch Smart Home App:Open the Bosch Smart Home App on your smartphone or tablet.

Select room thermostat:Go to the "Devices" menu item and select the corresponding room thermostat for your underfloor heating.

Set summer mode:Activate summer mode in the room thermostat settings.

2. Summer mode display

OFF symbol on the display: The room thermostat displays an OFF symbol on the display.

Summer mode notification in the app:A notification is displayed in the Smart Home App indicating that summer mode is active.

Effect of summer mode

- Underfloor heating shutdown: In summer mode, the underfloor heating thermostats are turned off.

- Ignoring scenarios and automations: Scenarios and automations ignore the temperature settings for the corresponding room as long as summer mode is active.

Summary

- Activate summer mode: Use the Bosch Smart Home App to set summer mode for your room thermostat.

- OFF symbol and notification: The OFF symbol on the display and the notification in the app indicate that summer mode is active.

- Effect: The underfloor heating is turned off and temperature settings are ignored.

If the measured temperature is significantly lower than the set temperature, the following factors may play a role:

1. Average of temperatures

Radiator thermostats in the same room: If you have assigned Radiator thermostats and Room thermostats to the same room in the system, the measured temperature is determined as the average of all measured temperatures.

Local conditions:Each Radiator thermostat reacts individually to the local conditions at the respective radiator.

2. Check the Radiator thermostats

Free accessibility:Ensure that the Radiator thermostats are freely accessible and not blocked by furniture or curtains.

Avoidance of heat accumulation: Prevent heat accumulation around the Radiator thermostats, as this can distort the measurement.

3. Expand system

Add Room thermostat:Consider expanding your system with a Room thermostat. A Room thermostat measures the actual room temperature more accurately and thus improves the control of the Radiator thermostats.

Summary

Average of temperatures: Note that the measured temperature is an average of all thermostats in the room.

Free accessibility and heat accumulation: Check the position and accessibility of the Radiator thermostats.

Add Room thermostat:An additional Room thermostat can improve measurement accuracy and control.

Please note that cooling mode only works in conjunction with a heat pump that also supports this function. To set the cooling mode for your underfloor heating, follow these steps:

Open menu:Go to the menu of your room thermostat.

Select Heating Pause & Cooling:Select the "Heating Pause & Cooling" option.

Select mode: Select the appropriate mode for each room:

Heating:For rooms that should be heated.

Heating pause: For rooms that are temporarily not in use.

Cooling:For rooms that should be cooled.

Practical note

Favorites icon: Even without opening the service, you can see which mode is currently active by the corresponding icon in the favorites.

If the measured temperature is significantly higher than the set temperature, the following factors may play a role:

1. Check heat sources and thermostat position

Heat sources in the room: Check whether there are additional heat sources in the room, such as sunlight, electrical appliances, or other radiators.

Position of the room thermostat:Make sure that the room thermostat is not installed near heat sources or direct sunlight.

2. Radiator thermostats in the same room

Average of temperatures:If you have assigned radiator thermostats and room thermostats to the same room in the Bosch Smart Home system, the measured temperature is determined as the average of all measured temperatures.

Create separate rooms:To fully utilize the boost mode and ventilation detection functions for your radiators, we recommend creating separate rooms in the system.

3. System learning phase

Heating and cooling behavior: The system learns the heating and cooling behavior of your room during the first few days. During this time, there may be larger deviations between the set and measured temperature.

Summary

- Check all heat sources in the room and the position of the room thermostat.

- Make sure that radiator thermostats and room thermostats are correctly assigned.

- Give the system a few days to learn the heating and cooling behavior of your room.

Functions:

The underfloor-heating room thermostats 230V feature an automatic valve protection function or limescale protection.

If a valve has not been moved for 14 days, it is automatically opened for five minutes. This prevents the valve from seizing and calcifying.

The 14-day interval is longer than for radiator thermostats, as the lower temperatures in the underfloor heating circuit (approx. 30°C instead of 60°C for radiators) result in significantly less limescale buildup.

Requirements:

The room thermostat must be correctly installed and connected to the underfloor heating system.

The function is automatically activated and requires no additional settings.

Summary:

The automatic valve protection function ensures that the valves of your underfloor heating system are moved regularly to prevent limescale buildup and seizing.

This function is particularly important because the lower temperatures in the underfloor heating circuit cause less limescale formation, but regular movement of the valves is still necessary.

This protection function contributes to the longevity and efficiency of your underfloor heating system.

**Recommendation for operation with Smart Home Controller**

To optimally use all functions of your Smart Home system, we recommend using a Smart Home Controller. Without this controller, the room thermostats regulate the actuator valves in "Normally Open" (nO - normally open when de-energized) mode. After a reset to factory settings, the default setting is also "nO".

**Behavior of the room thermostat after switching on**

After switching on the mains voltage, the room thermostat goes through several phases in the first 30 minutes:

1. **Start mode (0-10 minutes)**:

- The room thermostat is in start mode.

- The relay is continuously activated.

2. **2-point control (10-30 minutes)**:

- The relay is operated via 2-point control.

- When the temperature falls below the set temperature, the relay is switched on.

- When the temperature exceeds the set temperature, the relay is switched off.

3. **PWM mode (from 30 minutes)**:

- After 30 minutes, the control switches to PWM mode (pulse width modulation).

Without a Bosch Smart Home Controller, the room thermostat does not receive updates, which are necessary for safe operation, so please ensure that the room thermostat regularly connects to a Bosch Smart Home Controller.

Requirements:

Underfloor heating in combination with a heat pump.

The heat pump must support a cooling function.

Settings:

In the Bosch Smart Home App, you can activate the "Cooling" operating mode if the above requirements are met.

Summary:

The "Cooling" operating mode is supported if you have underfloor heating and a compatible heat pump with cooling function.

For more information on compatible heating systems from Bosch Thermotechnology, please visithere.

With the correct configuration and use of the cooling function, you can ensure a comfortable indoor climate in both summer and winter.

To turn on the backlight of your Bosch Smart Home room thermostat, simply press thecontrol dial of the operating unitbriefly. This will activate the lighting.

The clicking of your underfloor heating is caused by the operating method of the room thermostat:

Technology: The device uses pulse width modulation (PWM) based on 15-minute intervals. The internal relay is triggered every 15 minutes, which causes the clicking. This method is state of the art and ensures precise control of the heating output.

No damage:Damage to your heating system or the control valves is not to be expected. Heating systems are equipped by the manufacturer with self-protection that handles such loads without any problems.

The clicking is therefore a normal operating noise and no cause for concern. It shows that the thermostat is working correctly.

Yes, the room thermostat is compatible with heat pumps as it works with all water-based underfloor heating systems.

Automatic adjustment:During the first days of operation, the device automatically learns the time intervals for heating and cooling the rooms and adjusts the control accordingly.

Optimization for heat pumps:In the device settings of the thermostat, you can select the heating device type. For heat pump systems, it is recommended to select the "Low energy" type to adjust the initial control parameters and optimize the learning time.

With these functions, the thermostat ensures efficient and adapted control of your underfloor heating in combination with a heat pump.

Using a room thermostat for multiple rooms

A room thermostat, especially for underfloor heating systems, is fundamentally designed to control a single room. However, there are certain structural conditions under which a room thermostat can control multiple rooms:

Possible scenarios

Shared heating loops:

In some heating systems, one actuator controls multiple heating loops that do not necessarily have to run in the same room.

Example: An open ground floor without partition walls, where the heating loops cover multiple areas.

Heating loop across multiple rooms:

If a heating loop runs across multiple rooms, a room thermostat can control this loop.

Example: An open kitchen that was later separated from the living room by a wall but still uses the same heating loop.

Important notes

Control across room boundaries is only possible if the structural conditions allow it, such as shared heating loops or open room concepts.

For precise temperature control, it is recommended to use a separate room thermostat for each room, provided the heating loops are separate.

Summary

A room thermostat can control multiple rooms if the heating loops or actuators run across room boundaries. In most cases, however, room-by-room control with separate thermostats is more practical.

Protection against moisture and water for the room thermostat

The Bosch Smart Home room thermostats, including the models for underfloor heating, have protection class IP 20. This protection class means the following:

Meaning of protection class IP 20

First digit "2":

The device is protected against solid foreign objects with a diameter of more than 12.5 mm.

It is also protected against access with a finger, which increases safety during operation.

Second digit "0":

The room thermostat is not protected against water or moisture. It should therefore only be used in dry indoor spaces.

Important notes

Avoid moisture: Do not install the room thermostat in humid rooms or in places where it could come into contact with water.

Area of application: The device is designed for dry living spaces and should be used accordingly.

Control of the Room thermostat via Amazon Alexa

Yes, the Room thermostat, including the Room thermostat for underfloor heating, can be controlled via Amazon Alexa. Here is the most important information about voice control:

Requirements

Bosch Smart Home Controller: The controller is required to connect the Room thermostat with Alexa.

Bosch Smart Home App: The app (for iOS or Android) is needed to set up the Alexa integration.

Voice commands

Set temperature:

Example: "Alexa, set living room to 23°C."

Increase or decrease temperature:

Example: "Alexa, increase living room by 2 degrees" or "Alexa, decrease living room by 2 degrees."

Summary

The Room thermostat can be conveniently controlled via Amazon Alexa by using simple voice commands. The prerequisite is the setup of the Bosch Smart Home Controller and the Bosch Smart Home App.

Functions of ventilation detection for the Underfloor-heating room thermostat 230V

The Room thermostat for underfloor heating offers two options for ventilation detection to efficiently control heating during ventilation:

1. "Temperature drop" service

How it works:

You can individually set how much the temperature may drop within a specific time period.

As soon as the set conditions are met (e.g., a rapid temperature drop), the heating process is automatically terminated.

Advantage: This function works independently of additional devices and detects temperature changes directly.

2. Combination with door/window contacts

How it works:

Door/window contacts from Bosch Smart Home immediately detect when a window is opened.

This information is forwarded to the Room thermostat, which then immediately terminates the heating process in the room.

Advantage: This method is faster and more reliable, as it reacts directly to the opening of a window without having to wait for a temperature drop.

Summary

The Room thermostat for underfloor heating can switch off the heating during ventilation either via the "Temperature drop" service or in combination with door/window contacts. The combination with door/window contacts offers a particularly fast and precise response. Both options contribute to energy efficiency and comfort.

Functions of summer mode

Summer mode is a practical function that allows you to deactivate the heating function in individual rooms during the warm season. Here are the most important details:

What does summer mode do?

Deactivation of heating: After activating summer mode, the thermostats in the corresponding room are switched off so that no heating power is provided.

Ignoring scenarios and automations: All temperature settings, scenarios and automations connected to the heating are ignored for the room.

Display:

The symbol "OFF" appears on the display of the thermostats.

A "Summer mode" notification is displayed in the Bosch Smart Home App.

How do I activate summer mode?

In the Bosch Smart Home App, go to Menu >> Services >> Summer break.

Activate or deactivate summer mode room by room, as needed.

Summary

Summer mode switches off the heating function in selected rooms and ignores all heating scenarios and automations. This saves energy and is particularly useful during the warm season. Activation is conveniently done via the Bosch Smart Home App.

Market diversity:There are many variants of underfloor heating systems, both wired and radio-based. For wired systems, most manufacturers use either 230V or 24V. Radio-based actuators are not compatible with the Bosch Smart Home Underfloor-heating room thermostat 230V.

Advantages of 24V systems

Safety: 24V systems operate with low voltage (<50 volts), which is not life-threatening for adults.

Silent operation: The 24V device uses a semiconductor element (triac) instead of a relay, which enables silent operation.

Yes:An offset setting is possible with our room thermostats, similar to the Bosch Smart Home radiator thermostat.

Instructions for setting

Open Bosch Smart Home App: Start the app on your smartphone or tablet.

Access device settings: Navigate to the device settings.

Select room thermostat: Select the corresponding device under "Room thermostats".

Make offset setting: You can now adjust the offset setting to compensate for differences between the measurements at the thermostat and the measurement in the center of the room.

Individual measurements:Each device measures the sensor values at its specific location in the room.

Measurement tolerances: Small deviations in the measured values can result from the measurement tolerances of the devices.

Local conditions: Different positions in the room (e.g. ceiling, wall, window, doors) influence the measured values.

Consider heat-up time: Underfloor heating systems require a bit more time to heat up a room due to their energy-efficient nature. Factor in this heat-up time when setting the heating times.

Setup instructions

1. Open Bosch Smart Home App: Launch the app on your smartphone or tablet.

2. Schedule and automations: Go to the schedules under room control.

3. Set heating times: Define the desired heating times and take into account the longer heat-up time of the underfloor heating.

Technical data

Current: The room thermostats for underfloor heating can switch a maximum current of 1 ampere.

Power at 230 volts: At a voltage of 230 volts, this corresponds to a maximum switching capacity of 230 watts.

Power at 24 volts: At a voltage of 24 volts, this corresponds to a maximum switching capacity of 24 watts.

Summary

Maximum current: 1 ampere

Maximum switching capacity at 230 volts: 230 watts

Maximum switching capacity at 24 volts: 24 watts

Not available: The boost function in the Bosch Smart Home app is specifically designed for rapid heating with our smart radiator thermostats.

Room thermostat underfloor heating:This function is not offered for the room thermostat in combination with underfloor heating.

Protection against voltages hazardous to touch:Protection classes define measures that protect against hazardous voltages.

24V systems:For 24V room thermostats, protection is ensured by using extra-low voltage, which is not life-threatening for adults.

230V systems:For 230V room thermostats, double or reinforced insulation is required to ensure protection against the higher voltages.

You can find the operating instructions for the Bosch Smart Home Underfloor-heating room thermostat 230Vhere.

Settings:

Check the settings in the Bosch Smart Home App. Make sure that the room is configured correctly and the desired temperatures are set.

Range:

Check whether the Room thermostat is installed within range of the Bosch Smart Home Controller.

Installation:

The installation of the Underfloor-heating room thermostat 230V may only be carried out by a qualified electrician. Have the connections on the Room thermostat checked for correct wiring.

The Room thermostat is exclusively suitable for controlling actuators with a maximum current of 1 ampere (equivalent to 230 watts switching capacity for the 230 volt product variant or 24 watts for 24 volts).

The control system was designed for water-based underfloor heating systems. Operation with other types (e.g. electric) is not recommended.

Summary:

Check the settings in the Bosch Smart Home App.

Check the range and use a Zigbee repeater if necessary.

Have the wiring and installation of the Room thermostat checked by a qualified electrician.

By following these steps, you can ensure that your Underfloor-heating room thermostat works correctly and the desired room temperature is achieved.

Settings:

Check the setting for the valve type (normally open/normally closed) in the Bosch Smart Home App. Make sure this setting matches your underfloor heating correctly.

Installation:

Have the wiring on the room thermostat and actuator checked by a qualified electrician. The underfloor-heating room thermostat 230V must be installed by a qualified electrician. The wiring may also only be checked by a qualified electrician to ensure safety and correct function.

Services and automations:

Check in the Bosch Smart Home App whether all services and automations are configured correctly. Make sure that no automations are preventing the thermostat from switching off.

Valve:

Perform a visual inspection of the valve to identify possible defects. Look for visible damage or blockages that could prevent the valve from closing.

Note:

The room thermostat uses PWM control (pulse width modulation) instead of conventional 2-point control. This means that the thermostat regulates the heating output by rapidly switching the valve on and off. Make sure this control is functioning correctly.

Summary:

Check and change the setting for the valve type in the Smart Home App.

Have the wiring on the room thermostat and actuator checked by a qualified electrician.

Check the configuration of services and automations in the app.

Perform a visual inspection of the valve for possible defects.

By following these steps, you can ensure that your underfloor heating functions correctly and the room thermostat switches off properly.

Installation:

The installation of the Bosch Smart Home Underfloor-heating room thermostat 230V may only be carried out by a qualified electrician. This ensures the safety and correct function of the device.

Instructions for installation can be found in the operating manual.

The operating manual for the Room thermostat 24V can be foundhere.

The operating manual for the Room thermostat 230V can be foundhere.

Heating systems:

The Bosch Smart Home Room Thermostat Underfloor Heating 230V automatically learns the time intervals for heating up and cooling down the rooms during the first days of operation and adjusts the control accordingly.

Information:

Initial parameters: By selecting a heating device type, you set the initial parameters of the heating control.

Underfloor heating:

The control initially decides every 15 minutes how long the actuator of the underfloor heating receives power in the following 15 minutes.

The times are then automatically adjusted in the following days to the real behavior of the heating system.

Convector and electric radiator:

The room thermostat initially switches on and observes what happens subsequently.

The switching times are gradually adapted.

Summary:

The "Heating device type" setting helps the room thermostat to learn and adjust the optimal control parameters for your specific heating system.

This ensures efficient and comfortable heating control that is tailored to the individual needs of your heating system.

If your first-generation Bosch Smart Home Underfloor-heating room thermostat 230V is defective, you will receive a replacement device under warranty or guarantee.

Replacement device:

You will receive a Bosch Smart Home Room thermostat II 230V (model number: 8-750-002-388).

Next steps:

Warranty: Make sure that your device is still covered by warranty.

Customer service: Contact Bosch customer service to initiate the replacement process. Have your proof of purchase ready to expedite the process.

Important:The installation of the Room thermostat II 230V must be carried out by a qualified electrician.

### Problem: Defect on a Junkers / Bosch Home Comfort Underfloor-heating room thermostat 230V with material number 8750001003

#### Product details:

Product:Underfloor-heating room thermostat 230V

Material number: 8750001003

#### Important information:

This room thermostat is not manufactured by the Bosch Smart Home division.

For technical questions or warranty inquiries, please contact the manufacturer, Bosch Home Comfort, directly.

#### Contact information:

Customer service Bosch Home Comfort:

https://www.bosch-homecomfort.com/de/de/wohngebaeude/service-und-support/kundenservice/

Thank you for your understanding!