BOSCH RT_II_230V Room Thermostat Instructions

BOSCH RT_II_230V Room Thermostat

User manual

• Room thermostat II 230 V

Product Description

The room thermostat II 230 V allows you to control your wired heating applications conveniently via your Smart Home system.

Description of the symbols

• Warning! Note about hazards
• Note: Additional important information
• Note about the installation video

Intended use

The Bosch Smart Home room thermostat II 230 V is intended exclusively for controlling wired heating applications, such as underfloor heating. Any other use is considered improper use.

Safety instructions

• Read this user manual completely before installing or commissioning the device and pay particular attention to the hazard information.
• Keep the user manual in a safe place throughout the entire service life of the device.
• The installation of this device and work on the 230 V network must only be carried out by an electrician.
• The device is not a toy! Do not allow children to play with it. Never leave the packaging material lying around unattended. Plastic film and small parts may pose a danger to children.
• This device may be used by children from 8 years of age and by persons with reduced physical, sensory or mental capacities, or a lack of experience and knowledge provided these persons are supervised or have been instructed in the safe use of the device, and understand the corresponding risks.
• When remotely or automatically controlling a device, it is not always possible to guarantee that commands are actually executed or that the correct device status is displayed in the app and on other Smart Home display devices because of external circumstances. This may lead to material damage and/or personal injury. Therefore, you must ensure to the greatest extent possible that no person is endangered at the time of remote operation or automated control. Please take special care when setting up or adjusting the remote control or when using the automated control and check the desired functionality at regular intervals.
• Do not paint over the device! Do not apply wallpaper or paste over the device!
• The device is not suitable for disconnection.
• For safety and approval reasons (CE/UKCA), the device may not be modified, and/or no changes may be made to the device without authorization.
• Any use other than that which is described in the user manual is considered improper and leads to the exclusion of guarantee and liability.
• We accept no liability for material damage or personal injury which is caused by improper use or by not observing the safety instructions. In these cases, any guarantee claim becomes void! We accept no liability for consequential damage.
• Do not use the device if it has damage visible from the outside, for example, to the housing, control elements or connection sockets, or if it has a malfunction. If in doubt, please contact our service team.
• Only operate the device indoors and do not expose it to moisture, vibrations, constant sunlight or other sources of heat, extreme cold temperatures and mechanical stress.
• Do not open up the device. It does not contain any parts to be maintained by the user. If a fault occurs, have the device checked by a specialist.
• Only use the device together with original components and recommended products from Bosch partners.
• Only operate the device with the control element attached.

Notes

• The range within buildings can deviate greatly from the range in open spaces. In addition to the transmitting power and the receiving properties of the receiver, environmental factors such as humidity, as well as the local structural situation, play an important role.
• The device is only intended for use in residential environments.
• The device is only intended for private use.

Product Overview

LED display (2) ****

information.
b| Humidity| Displays room humidity in normal operation.
c| Secondary temperature display| Reserved for the display of further temperature values (if applicable, optional accessories required)
d| Status indicators
 | – Power supply loss| Appears when the 230 V power supply is down.
 | – Connection status| Wireless connection to the controller is active. In the event of constant flashing, there is a connection problem with the controller.
 | – Child lock| Operation on the device is locked.

Can be set via the app and on the device.

 | – Open window| The system has detected an open window in the room. Heating/cooling mode paused.
e| Cooling mode| The device/system is set to cooling mode.
f| Heating mode| The device/system is set to heating mode.
g| Room control modes
 | – Automatic| Room control is controlled via a schedule.
 | – Manual| Temperature at constant value. Can be changed via a rotary knob.
 | – Rest mode| Heating or cooling mode paused.
h| Value display| Displays actual and set temperature. Other text information in case of an error or during configuration.

The status LED (3) shows the status of the room thermostat using flashing codes.

Flashes orange

| Pairing mode (is active)

or device is communicating

with the controller

| Please wait
Flashes green| Pairing mode (successful) or process confirmed| –

Flashes red 1x

| Pairing mode (not successful) or process failed| If this is the first pairing attempt, please try again. Otherwise, reset the device to the factory settings and contact the service department if necessary.
Flashes red every

15 seconds

| Functional error| Look for information in the Smart Home app. Contact the service team if necessary.

Notes regarding installation

݃ The standards and directives applicable in your country must be observed during planning, set-up, operation, and maintenance.

• The device is part of the building installation. Operation of the device is only permitted at 230 V/50 Hz AC voltage. Work on the 230 V network may only be carried out by an electrician. The applicable accident prevention regulations must be observed here. To avoid an electric shock on the device, please switch off the main power. Failure to observe the installation instructions may result in fire or other hazards.
• Mounting must be carried out following the applicable requirements. Failure to observe the requirements may result in damage to property and/or injury or even danger of death.
• Please also note any additional information on the product.
• A 230-volt alternating current power supply is required for this product (the device must have a phase and neutral conductor).
• The product is only intended for fixed installation in in-wall switch boxes with a minimum depth of 35 mm and a screw distance of 60 mm (in accordance with DIN 49073-1) in indoor areas.
• The supplied wire bridge (connection “COM” and “L” connections) may only be installed with 230 VAC consumers. Non-observance can lead to the destruction of the device, fire, or electrical accident! If necessary, remove an existing thermostat.
• When connecting the device terminals, ensure that permitted wires and wire cross-sections are used.
• The consumers connected to the relay outputs must have sufficient insulation.
• Observe the technical data, in particular the maximum permissible switching power of the relay and the type of consumer to be connected, before connecting a consumer. The device should only be loaded to the specified power limit. Overloading may result in destruction of the device, fire, or an electrical accident. Among other things, reliable switching off of the connected consumer cannot be guaranteed.
• ݃ The power circuit to which the device and the load are connected must be secured with a circuit breaker in accordance with EN 60898-1 (trigger characteristics B or C, max. 16 A rated current, min. 6 kA breaking capacity, energy limitation class 3). Installation guidelines in accordance with the applicable national standards, e.g. VDE 0100 HD384, or IEC 60364, must be observed. The circuit breaker must be easily accessible for the user and labeled as a disconnecter for the device.
• ݃ When using the device in wet rooms such as bathrooms, a minimum distance of 60 cm from wet areas, such as a bathtub, shower, or wash basin must be maintained.

Installation and mounting

Before you start: Be sure to shut off the power circuit breaker! If necessary, remove an existing thermostat. Connect the room thermostat II 230 V according to the connection diagram that suits you.

Operation with 230 V devices

supply.
NO| Switching output for consumers
S1/S2| Connections for external sensors or potential-free contacts.
T| External temperature sensor (available as optional accessory),

e.g. installed in the floor.

| 24 V actuator

Operation with 24 V devices

supply.
NO| Switching output for consumers
S1/S2| Connections for external sensors or potential-free contacts.
T| External temperature sensor (available as optional accessory),

e.g. installed in the floor.

| 24 V actuator

Operation with boiler

Connection Description

L| External conductor (230 VAC)
N| Neutral conductor
COM| Voltage-free input.
NO| Voltage-free input.
S1/S2| –

Attach the in-wall housing to the wall box using suitable screws. Pay attention to correct orientation (Bosch writing at the top and readable). Place the control unit on the in-wall unit and press it in until it clicks into place. Now switch the power back on. As soon as the room thermostat is connected to the power supply, pairing mode starts and is active for 3 minutes. Pairing mode can be restarted at any time by pressing the system button (4). The room thermostat can also be operated independently, with no connection to the Smart Home system. The range of functions is then essentially limited to displaying and controlling the room temperature in conjunction with the connected heat generator according to the preset target temperature in the manual operating mode (without a time program). In the event that an initial start-up is required without a Smart Home system (e.g. new build), basic settings can be made on the device via an installer mode. To this end, press and hold the rotary knob (4) for at least 3 seconds until the display shows “INS”. By turning the knob (4) you can make a selection and confirm the selection by pressing it.

Level
1| 2| 3
UFH|  |  | Potential application, e.g. 230 V/24 V actuators
NC|  | Normally closed actuator
HT| Heating mode
CL| Cooling mode
NO|  | Normally open actuator
HT| Heating mode
CL| Cooling mode
VFH| –| –| Potential-free application, e.g. boiler
RAD| –| –| Radiator, operation with 2nd generation Bosch Smart Home radiator thermostats

After connecting the room thermostat to the Bosch Smart Home system, you can also adjust all device settings in the Smart Home app. You can also use the explanatory videos and additional information on our website as an additional aid for mounting, installing, starting up, and restoring the factory settings on your Bosch Smart Home room thermostat II 230 V:

• https://www.bosch-smarthome.com/rom/room-thermostat-2-230V

Start-up

Ensure that you have a Bosch Smart Home controller and the Bosch Smart Home app and have successfully configured both. Now start the Bosch Smart Home app and select “Add new device”. Follow the instructions in the app.

Resetting to factory settings

You can reset the device to its factory settings as follows: Remove the control unit from the in-wall housing. When reinserting it, hold the rotary knob (4) until “RES” appears on the display. Release the rotary knob and press it again. The device then restarts. Please note that it can take a few seconds until the room thermostat is ready for operation again. When resetting to factory settings, the settings and information are only lost from the device and not from the Bosch Smart Home controller. To re-configure the device, first delete it from the device management section of the Bosch Smart Home app and then add it again in the usual pairing process.

Maintenance and cleaning

The device does not require maintenance. Leave any repairs to a specialist. Clean the device with a soft, clean, dry, and lint-free cloth. When cleaning, do not use any cleaning agents containing solvents.

Simplified declaration of conformity

Robert Bosch Smart Home GmbH hereby declares that the radio equipment type Bosch Smart Home BTH-RM230Z corresponds with the directive 2014/53/EU. The complete text of the EU Declaration of conformity is available via the following web address:

• https://eu-doc.bosch.com

Robert Bosch Smart Home GmbH hereby declares that the radio system type BTH- RM230Z complies with Regulation 2017. The full text of the declaration of conformity is available at the following internet address:

• https://gb-doc.bosch.com

Environmental protection and disposal

This symbol means that this product must be disposed of separately from general household waste. As an end user, you are obligated to dispose of the product via separate waste collection, for instance by passing it to an official collection point, in line with the relevant national regulations. By collecting waste separately, you are making a valuable contribution to protecting the environment and human health. This is because, by treating old equipment properly, on one hand, the potentially negative effects associated with the presence of hazardous substances are prevented, and, on the other hand, raw materials are conserved through their recovery. Please also note that the avoidance of waste is an even more valuable contribution to environmental protection. Wherever possible, as well as finding a further use for the device yourself or having it repaired, passing the device to a second user is also an ecologically valuable alternative to disposal. It is also possible to return these to the place you bought the product from, provided the distributor offers a returns service voluntarily or is legally obligated to do so.

Technical data

screw spacing of 60 mm
Switch output| Potential-free relay
Max. Switching power
Ohmic load| 3 A
Inductive load| 1 A
Capacitive load| –
Mode of operation| Type 1. B
Withstand voltage| 3,000 V
Ball pressure test temperature| 125 °C
Degree of soiling| 2
Design| Independently mounted, electronic control device

Technical modifications reserved

Spare parts/accessories

For information on available spare parts or accessories, please visit: https://www.bosch-smarthome.com/rom/spareparts

Service Information

• Robert Bosch Smart Home GmbH Schockenriedstraße 17
• 70565 Stuttgart-Vaihingen Germany
• service@bosch-smarthome.com
• @ www.bosch-smarthome.com/service

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