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Technical Documentation V1.0

tado° Smart Thermostattado° Extension Boxtado° Additional Thermostat

ENGLISH

tado° – Technical Documentation V1.0 2

Product Overview

Compatibility

Model Predictive Control

Mobile and Web App UI

Smart Thermostat UI

System Components• tado° Bridge• tado° Smart Thermostat• tado° Extension Box

Support

Technical Specifications

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Content


Product Overview

tado° Smart Thermostat tado° Extension Kit

• Measures temperature, humidity & luminosity.• Displays the measured temperature and allows

adjusting operation and set point.• Controls heating when wired to the heating

system• Acts as a sensor and remote control when

installed in combination with the Extension Box (depends on the existing heating setup).

• Required for the replacement of hot water controlling programmers (UK only).

• Recommended for heating system setups without a room thermostat (the Extension Box acts as a reciever; the Smart Thermostat as a wireless sensor and remote control.

• Controls heating based on sensor data from the tado° Smart Thermostat.

• Typically installed next to the boiler or as a replacement for an existing external control-ler.

• Compatible with the UK standard backplate.

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tado° Smart Thermostat tado° Extension Box

tado° Bridge Power adapter

USB cable

Labels Labels 4-wire cable Euroblock-2 plug RAST5-2 plug

Screw Terminal

Screw-driver Sticky pads

Screws Screwswall plugs wall plugs

Housing screw

AAA Batteries

Insulating caps

Ethernet cable

tado° Bridge and its accessories tado° Extension Kit accessories Installation accessories

link

router

internet


Product Overview

tado° Additional Thermostat

• Additional themostat for heating systems with serveral zones.

• One thermostat is required per zone.

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tado° Additional Thermostat

tado° Additional Thermostat accessories

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Labels

Sticky pads

Screws

wall plugsHousing screw AAA Batteries

Compatibility

tado° is compatible with almost all central heating systems, including:

• combi, system and heat-only boilers• conventional and condensing boilers• common Y-, S- and W-plan setups• hydronic underfloor systems• electric underfloor systems with a maximum switching current of 6 A• air source and ground source heat pumps (heating only)• zoned systems (one Smart Thermostat per zone)• switched live systems• potential free (dry contact) systems• low voltage systems with analog interfaces• low voltage systems with digital bus interfaces

tado°s compatibility with specific heating systems can be checked on tado.com/check

Compatibility



tado° does not require presence or absence time programing. Patents have been filed for the algorithms which automatically adjust the heating output to the user‘s needs. A building model is automatically created for each household to enable tado°‘s proprie-tary model predictive control to include weather forecasts into the control strategy as well and to thus optimize the energy demand and comfort at home.



Heating OperationsThere are three different heating operations.

Off: When set to Off, tado° only heats when the room temperature drops below 5°C to advoid frost damage.Auto: When set to Auto, tado° controls your heating based on your location and sche-dule. You can adjust your prefered home and sleep temperatures. The optimal away temperature is set by tado° automatically.Manual: When set to Manual, tado° keeps the room temperature at the selected set point.

Hot WaterFor hot water there are four operations.

Off: When set to Off, no hot water is prepared.Auto: When set to Auto, tado° prepares hot water when you are at home.Schedule: When set to Schedule, tado° prepares hot water according to the settings in the dedicated hot water schedule. It can be set in the web application.Manual: When set to manual, tado° prepares hot water constantly.


tado° is built for mobile phones and web use. Accordingly, tado° settings are most comfortably controlled using the tado° mobile app. It is available for iOS (> Version 7.1), Android (> Version 2.3) and Window Phone (> Version 8.1). The download is free.

Besides control of settings and management of data, the tado° app also provides a detailed report of the heating history and a feature to compute a savings estimate.

The tado° Web App is accessible on computers and tablets and contains the same features as the mobile app.


Off Auto ManualSchedule

ManualAutoOff


Smart Thermostat UI

Smart Thermostat UI

tado°s Smart Thermostat has a user interface which is activated by pressing the button on the bottom right. First the current temperature is displayed. The mechanical button on the bottom right can be used to flip through the menu. The next press switches to the Operation / Mode screen. After pressing the button once more, the setpoint temperature is displayed and can be adjusted using the cap-touch buttons, which light up when settings can be changed. On heating systems that support hot water prepe-ration, the current hot water state (on/off or temperature on specific systems) and hot water operation are accessible by pressing the mechanical button again.

Control elements

the mechanical button activates and traverses through the menu

switch operation and ad-just setpoint temperature

LED matrix display

Mechanical push button

Touch arrows


Smart Thermostat UI

Hot Water (not supported by all heating systems)

Shown for relay hot water systems

Auto Operation Shown for digital bus hot water systems

Hot Water Schedule Operation

Hot WaterManual Operation (ON)

Hot waterOff

Hot WaterAuto Operation

HEATING HOT WATER (not supported by all heating systems)

Operation / Mode(press twice)

Change Settings(press three times)

State(press once)

State(press four times)

Hot Water Operation(press five times)

Current Temp.

Home Temp.

Home Temp.

Sleep Temp.

Hot Water On

Hot Water Off

Hot WaterCurrent Temperature

Away Temp.

Man Temp.

Preheat (Animation)

Home

Sleep

Away

Not setable

Manual Operation

Off

Privacy Mode


tado° Bridge

The tado° Bridge is the intermediary device between a tado° Smart Thermostat and the tado° Servers. It is connected to a router via an ethernet cable and communicates wirelessly with the Smart Thermostat.

System Components – tado° Bridge

Connecting the Bridge

link

router

internet

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TROUBLESHOOTING: If the Bridge is unable to connect to the router (“router” light continues to flash) or to tado° servers (“internet” light continues to flash) check the ether-net cable and/or reset the device by unplugging and plugging the power cable back in. If the Bridge is still unable to connect, there may be an issue with the configuration of the router. More information is available at tado.com/support.

Connect the ethernet port to the router and the USB port to power via the power adapter.

The Bridge should be connected and checked before proceeding with the installation of the tado° Smart Thermostat and/or the Extension Box. The “router” and “internet” lights must be solid.

Connecting Checking

link

router

internet

link

router

internet

link

router

internet


System Components – tado° Smart Thermostat

tado° Smart Thermostat

The tado° Smart Thermostat replaces existing thermostats or acts as a wireless thermostat together with the tado° Extension Box for heating systems that do not yet have a thermostat. It measures room temperature and allows to modify operation and set point temperature. If it is wired to the boiler it directly controls the heating. If is is not wired, it communicates to the boiler via the tado° Extension Box.

The tado° Smart Thermostat is powered by three AAA batte-ries which are included in the package. The paper strip must be removed from the thermostat to activate the power sup-ply. Batteries typically last for two years. tado° will inform you via email and/or push notification when it is time to replace the batteries.

Correct Placement of the Smart Thermostat

In those cases where tado° Smart Thermostat does not replace an existing wired thermostat, it can be placed in any appropriate location. When installing the Smart Thermostat please observe the following points:

• place the Smart Thermostat in a location which is representative for the tempera-ture which should be set. This is usually the living room

• place the Smart Thermostat on an inside wall at approx 1.5 m from the ground• do not place the Smart Thermostat in a place where it is exposed to direct sunlight

at any time of the day• place the Smart Thermostat away from any draft (near a door or window) or hea-

ting sources such as radiators or electric devices

1,50m

tado° Installation

tado° provides installation instructions specific to every heating setup. Those instructions are provided as online webflow. This documentation at hand is no replacement of these instructions and is a documentation of tado° devices and features, not of the installation process itself.

WARNING: While the self installation of the tado° system is possible, tado° strongly recommends booking of a professional installation by one of our tado° installation profes-sionals.

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tado°s Smart Thermostat supports both 230V and low voltage interfaces. The wiring diagram on the back of the device shows the wiring for the relay operation, three iso-lated parking slots for excess wiring (from the thermostat which is to be replaced) and three low voltage terminals for analog and bus connection.

When replacing a relay thermostat, connect COM and NO and optionally NC (if present in the current thermostat). Place any additional wires, such as a neutral wire into the parking slots without labeling next to the relay terminals. They do not have any function other than safely parking excess wires.

To replace an analog thermostat, use the three low voltage terminals on the right hand side. The analog output is connected to “A”, ground (GND) to “-” and the positive input (Vcc) to “+”.

When replacing a two-wired digital thermostat, the two low voltage terminals labeled with “-” and “+” are used. Typically digital bus interfaces are protected against polarity reversal, thus the order of connection does not matter.

When replacing wireless thermostats, the additional purchase of the tado° extension kit is recommended. tado°s Extension Box replaces an existing external reciever, extenal controller or is connected directly to the boiler. The tado° Smart Thermostat can then be placed in any suitable location without any wired connection being required.

Wiring

A

System Components – tado° Smart Thermostat

TROUBLESHOOTING: The tado° Smart Thermostat can be reset by pressing the but-ton on the front for more than 8s.


System Components – tado° Extension Box

tado° Extension Box

The tado° Extension Box acts as a communication link between the tado° Smart Thermostat and the boiler. It replaces extenal controllers, external receivers or is direct-ly connected to the boiler.

The Extension Box is powered by 230V mains connection for relays and by low voltage power supply when connected to analog or digital interfaces. For potential free relay wiring, an additional two wire power supply cable maybe required which is provided by tado° upon request.

Wiring

tado°’s Extension Box has both 230V and a low voltage interfaces. Two relay wiring configurations are possible and are distinguished by two different jumper positions. The first wiring option is a potential free wiring connection, where the power supply is separated from the relays. This wiring option is to connect low voltage single relays.In case a UK standard backplate is present and wired as a 230V dual relay (central heating and hot water) the tado° Extension Box can simply be mounted on the existing backplate and does not require any rewiring. For UK standard backplate where only one relay is wired, some rewiring might be required such that the wires correspond to tado°s “Relay Wiring 1” as indicated at the back of the Extension Box.

Relay Wiring 1Potential Free

Relay Wiring 2Switched Live1

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NL 12 34

COM NC NO

A NL 12 34 A

HWOFF

CHOFF

HWON

CHON

TROUBLESHOOTING: The tado° Extension Box can be reset by pressing the button on top for more than 8 seconds. After a reset, the box will start to look for a connection to the tado° bridge and the LED will blink during that process.

tado° Installation

tado° provides installation instructions specific to every heating setup. Those instructions are provided as online webflow. This documentation at hand is no replacement of these instructions and is a documentation of tado° devices and features, not of the installation process itself.

WARNING: While the self installation of the tado° system is possible, tado° strongly recommends booking of a professional installation by one of our tado° installation profes-sionals.

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Support Technical Specifications

For online support, please visit:tado.com/support

For phone support, please call:UK: +44 (0)20 35144881DE: +49 (0)89 416156640

tado° Smart Thermostat (Model RU01)Dimensions: circa 104 x 104 x 19 mm (L x B x H) / circa 132 g Operating voltage: 5-36V DC 0.2A / 4.5V DC (3xAAA batteries, 1,200 mA/h)Relay: max. 240V AC 6(4)A / max. 30V DC 6(4)ARadio: 868 MHz, Mesh (6LoWPAN) Display: 10 x 19 LEDs, 32 x 20 mmMaterial: PC+ABS Button: 1x Mechanical; 2x Capacitive TouchColour: white, flatCE, RoHS

tado° Extension Box (Model BU01)Dimensions: circa 150 x 102 x 28 mm (L x B x H) / circa 210 g Operating Voltage: 5-36V DC 0.2A / 100-240V AC 0.2ARelay: max. 240V AC 6(4)A / max. 30V DC 6(4)ARadio: 868 MHz, Mesh (6LoWPAN)Material: PC+ABS Colour: white, flatCE, RoHS

tado° Bridge (Model GW02)Dimensions: circa 89 x 52.5 x 25.5 mm (L x B x H) / circa 61 g Operating voltage: 5 V Radio: 868 MHz, Mesh (6LoWPAN)Material: PC+ABS Colour: white, flatCE, RoHS

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