Manual & Technical Documentation V1.1
tado° Smart Thermostat
tado° Extension Kit
ENGLISH
tado° – Manual & Technical Documentation V1.1
2
Product Packages
Compatibility
Intelligence & Security
Functions
Smart Thermostat
• Usage
• Menu Structure
• Special States
• Pairing & Reset
• Interfaces
• Correct placement of the
Smart Thermostat as a Sensor
Extension Box
• Usage
• Pairing & Reset
• Mechanical Design
• Interfaces
Bridge
Installation
Support
Technical Specications
Regulatory Conformity
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Content
tado° – Manual & Technical Documentation V1.1
1
Product Packages
tado° Smart Thermostat tado° Extension Kit
• Measures temperature, humidity, noise & luminosity
• Displays the measured temperature and allows the adjustment
of 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 replacing an existing external controller
• Compatible with the UK standard backplate
1
2
tado° Smart Thermostat tado° Extension Boxtado° Bridge Power Adapter
USB Cable
Labels Labels 4-Wire Cable Euroblock-2 Plug RAST5-2 Plug
Screw Terminal
Screwdriver
Sticky Pads x2
Screws x2
Screws x2
Dowels x2 Dowels x2
Housing Screw
AAA Batteries x3
Insulating Caps x4
Ethernet Cable
TADO° BRIDGE & ACCESSORIES TADO° EXTENSION BOX & ACCESSORIESSMART THERMOSTAT & ACCESSORIES
link
router
internet
Place this sticker on the
control panel of your heating
as a reminder.
RU-CL-01
NO NC COM
A–
+
Leave he ating set
to
al wa ys on !
Your tado˚ Smart Thermostat
turns the heating
on and off.
BU-CL-01
A–
+
NL 1 234
Use the stickers to label the cables as specified in the instructions.
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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 underoor systems
• electric underoor 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 specic heating systems can be checked at
www.tado.com
Compatibility
Model Predictive Control
tado° does not require presence or absence time programming. Patents have been
led for the algorithms which automatically adjust the heating output to the user‘s
needs. A building model is automatically created for each household which allows
tado°‘s proprietary model of predictive control to include weather forecasts in the
control strategy and therefore optimize energy usage and comfort at home.
Location Based Heating
The tado° Smart Thermostat controls the temperature automatically depending on the
residents location and distance from home and will only heat when it is really needed.
Encryption of Communication
Any communication between web browsers or smartphones and the tado° application
servers is encrypted with TLS 1.2 (SSL) Encryption with a 2048-bit Extended Validation
Certicate.
The communication between the tado° Bridge and the tado° Application Servers is
encrypted with TLS 1.2 (SSL) using 256-bit elliptical curve encryption.
The radio communication between the tado° devices uses AES-CCM encryption. The
key is exchanged by pairing the devices as part of the initial installation procedure.
Intelligence & Security
COMPATIBILITY CHECK
If tado° is bought online the compatibility is
checked during the installation process.
In cases where tado° is bought from an
installer, they will check the compatibility.
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Heating Operations
There are three different heating operations.
Off: When set to Off, tado° only heats when the room temperature drops below 5°C to
avoid frost damage.
Auto: When set to Auto, tado° controls the heating based on the residents location and
schedule. It can be adjusted to the preferred home and sleep temperatures. The
optimal away temperature is set by tado° automatically depending on the residents‘
location.
Manual: When set to Manual, tado° keeps the room temperature at the selected set
point temperature.
Hot Water Operations
The hot water functions of tado° are not supported by all heating systems. In the
application, the hot water functions are displayed only if the heating system supports
hot water control. For 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 according to anticipated need, eg.
based on the residents‘ location and statistical data about expected need.
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.
Meaning of Selected Symbols
When a ame is shown, tado° is requesting heat from the
heating system. This does not necessarily mean that the boiler
will start immediately or that a ame is present. Modern boilers
apply additional control logic regarding when to switch on or off
in response to a heat request.
Similiar to a greenhouse, sunshine can signicantly increase the
inside temperature of a room. Possible solar inuence is shown
using the sun symbol in the report.
Functions
tado° has been developed for mobile phone and web use. The
settings are most easily 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 app is free.
Besides the 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.
Functions
Manual
AutoOff
Off Auto ManualSchedule
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Smart Thermostat Smart Thermostat – Usage
Usage
The tado° Smart Thermostat has a user interface which is activated by pressing the button in the bottom right corner. First,
the current temperature is displayed. The mechanical button on
the bottom right can be used to ip 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 touch arrow buttons, which light up when settings can be changed.
Setting changes are stored after 3 seconds which is indicated by a ashing of the setting. Saving the setting can also be achieved by pushing the mechanical push button.
The setting is stored and the UI switches to the next menu point.
On heating systems that support hot water preparation, the current hot water state
(on/off or temperature on specic systems) and hot water operation are accessible
by pressing the mechanical push button again. The activation notications are shown
immediately after pressing the mechanical push button for activating the UI.
Please read the chapter “Installation” before installing.
CONTROL ELEMENTS
The mechanical push
button activates and
moves through the menu
The touch arrows switch
operation and adjust
setpoint temperature
LED matrix display
Mechanical push button
Touch arrows
Serial Number
& Authentication
Code
Terminal Blocks
Wall mounted Backplate
Back of the Device
Battery Case
Wiring Diagram
!
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 didn‘t have a wired thermostat
before. It measures room temperature and allows the user to
modify operation and set point temperature. If it is wired to the
boiler it directly controls the heating. If it is not wired, it communicates with the boiler via the tado° Extension Box.
The tado° Smart Thermostat is powered by three AAA batteries which are included in
the packaging. The paper strip must be removed from the battery case to activate the
power supply. Batteries typically last for two years. tado° informs the user via email
and/or push notication when it is time to replace the batteries.
Mechanical Design
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Smart Thermostat – Menu Structure
Hot Water (not supported by all heating systems)
Shown for relay hot
water systems
Auto Operation
Auto Operation
Shown for digital bus
hot water systems
Hot Water
Schedule Operation
Hot Water
Manual Operation (On)
Hot water
Off
Hot Water
Auto Operation
HEATING
HOT WATER
(not supported by all heating systems)
2. Operation / Mode
(2x button push)
3. Change Settings
(3x button push)
1. State
(1x button push)
4. State
(4x button push)
5. Hot Water Operation
(5x button push)
Current Temperature
Home Temperature
Home Temperature
Sleep Temperature
Hot Water On
Hot Water Off
Hot Water
Current TemperatureAway Temperature
Manual Temperature
Preheat (Animation)
Home
Sleep
Away
Not
setable
Manual Operation
Off
Presence & absence not visible
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Smart Thermostat – Special States
Not congured
FLASH NOTIFICATIONS
NOT CONFIGURED
POSSIBLE ERROR STATES
SMART THERMOSTAT
POSSIBLE ERROR STATES
SMART THERMOSTAT + EXTENSION KIT
Fallback operation
Smart Thermostat has
no radio link to Bridge
Smart Thermostat has
no radio link to Bridge
Conrmation required by a press of the button
Conrmation required by a press of the button
Flash once in sequence before the possible error states loop starts
Open window
Legionnaires
protection
Update
Empty battery
Extension Kit has no
radio link to Bridge
No connection to internet
No connection to internet
The activation notications are shown immediately after pressing the mechanical
button to activate the user interface.
The error states display any connection error.
The states and behaviour are different if an Extension Kit is used.
If the installation is not yet nished the wrench icon is displayed.
Activation Notications
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RESETPAIRING
Pressing and holding the button
until pairing symbol ashes
Pressing and holding the button
until the pairing symbol has
appeared and turned off
Releasing the button
Waiting until
successfully paired
Releasing the button
Pairing for 1 minute
Successfully paired
Screen turns off
Pairing Symbol
Screen turns off
Reboot screen appears
after 3 seconds
Smart Thermostat – Pairing & Reset
The Smart Thermostat can be reset for troubleshooting.As part of the installation the Smart Thermostat and the Bridge need to be paired.
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The tado° Smart Thermostat supports both 230V and extra low voltage interfaces. The
wiring diagram on the back of the device shows the wiring for the relay operation, three
isolated 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, COM and NO (and NC if present in the current
thermostat) should be connected. Any additional wires, such as a neutral wire are placed 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, the three extra low voltage terminals on the right
hand side are used. 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 extra low voltage terminals
labeled with “-” and “+” are used. Digital bus interfaces are typically 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. The tado° Extension Box replaces an existing external receiver or
external controller; or is connected directly to the boiler. The tado° Smart Thermostat
can then be placed in any suitable location without a wired connection being required.
Interfaces
Smart Thermostat – Interfaces
Correct Placement of the Smart Thermostat as a Sensor
In cases where the tado° Smart Thermostat does not replace an existing wired
thermostat, it can be placed in any appropriate location. When installing the Smart
Thermostat the following points should be observed:
• The Smart Thermostat should be placed in a location which is representative for
the temperature which should be set. This is usually the living room
• The Smart Thermostat should be placed on an inside wall at approx 1.5 m from
the ground
• Areas where the Smart Thermostat is exposed to direct sunlight at any time of the
day should be avoided
• The Smart Thermostat should be placed away from any draft (near a door or
window) or heating sources such as radiators or electric devices
1,50 m
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Usage
The Extension Box has one mechanical button and one
white LED that shines through the front housing. The
LED pulses slowly during normal operation.
tado° Extension Box
The tado° Extension Box acts as a communication
link between the tado° Smart Thermostat and the
boiler. It replaces external controllers, external receivers or is directly connected to the boiler.
The Extension Box is powered by a 230V mains
connection for relays or by a 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.
Extension Box
Please read the chapter “Installation” before installing.
!
Extension Box – Usage
LED Display
LED ACTION MEANING
Off No Power
Blinking Connecting
Blinking (Fast) Pairing
Pulsing (Slow) Normal Operation
Pairing & Reset
During installation the Extension Box needs to be paired with the Bridge. The Extension Box can be set into pairing mode by pressing the mechanical button for around
4-5 seconds (until the LED starts blinking fast) and subsequently releasing it. The
Extension Box automatically pairs with the Bridge. The LED willl start pulsing slowly
when it has contacted our servers (normal operation).
The Extension Box can be reset by pressing the mechanical button for more than 8
seconds until the LED turns off. The Extension Box then restarts when the button is
released.
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Mechanical Design
Extension Box – Mechanical Design
Contact pins
Jumper
Serial number &
authentication code
Backplate wiring diagrams
Screws to fasten housing
Holes for wall mounting
Terminal blocks
Wall Mounted Backplate
2. Tighten the screws at the bottom to fasten the device
Mounting
Back of the Device
1. Hook the device into the backplate and press it down
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Interfaces
The tado° Extension Box has connectors for relays (labeled 1-4) as well as analog and
digital interfaces (labeled A, -, +). Two relay wiring congurations are possible and are
distinguished by two different jumper positions.
Jumper Position 1: Potential Free Wiring Connection
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 some rewiring might
be required such that the wires correspond to tado°‘s “Relay Wiring 1” as indicated on
the back of the Extension Box.
Jumper Position 2: Switched Live
This wiring option corresponds to a 230V dual relay programmer. 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.
Extension Box – Interfaces
3 3
NLNL 1212 3434
A
1
2
1
2
2
1
Relay Wiring Diagrams
UK Standard BackplateSwitching the Jumper Position
Analog and Digital Connection
To connect an analog thermostat, the analog output is connected to “A”, ground
(GND) to “-” and the positive input (Vcc) to “+”.
To connect a two-wired digital thermostat, the two extra low voltage terminals labeled
with “-” and “+” are used. Digital bus interfaces are typically protected against polarity
reversal, thus the order of connection does not matter.
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tado° Bridge
The tado° Bridge is the intermediary device between the Smart
Thermostat, the Extension Box (if present) and the tado° Servers.
It is connected to a router via an ethernet cable and communicates wirelessly with the Smart Thermostat and the Extension Box.
Bridge Bridge LED Actions
Connecting the Bridge
INFO: Upon plugging in the Bridge, all three LEDs should light up once. If this doesn‘t
happen, the Bridge is either not sufciently supplied with power or is defective.
Connect the ethernet port to the router
and the USB port to power via the power
adapter.
Connect the ethernet port to the router and
the USB port to power via the router.
USB POWER ADAPTER USB JACK ON ROUTER
link
router
internet
link
router
internet
LINK LED ACTION
ROUTER LED ACTION
INTERNET LED ACTION
MEANING
MEANING
MEANING
Off
Off
Off
No power
No ethernet link detected
Off until IP address has been assigned
Blinking (Fast)
Blinking
Blinking
Pairing
Ethernet link detected. Awaiting
DHCP IP address assignment
Establishing connection to tado° Server
On
On
IP address assigned successfully
Connection to tado° Server
has been established
link
router
internet
link
router
internet
link
router
internet
link
router
internet
link
router
internet
link
router
internet
link
router
internet
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Installation
WARNING: While self installation of the tado° system is possible, tado° strongly
recommends booking a professional installation through one of our tado° installation
professionals.
Support
For online support, please visit:
support.tado.com
For phone support, please call:
UK: +44 (0)20 35144881
DE: +49 (0)89 416156640
INSTALLATION PROCESS
Have the tado° products at hand
Create an account
Select the heating system
Register devices
Professional installer booking
Self installation
with tado° installation instructions
tado° Installation
tado° provides installation instructions specic to every heating setup. These instructions are provided via an interactive installation assistant. The documentation at hand
is not a replacement for these instructions and is a general documentation of tado°
devices and features, not of the installation process itself.
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Technical Specications
tado° Smart Thermostat (Model RU01)
Dimensions: circa 104 x 104 x 19 mm (L x W x H) / circa 132 g
Operating voltage: 5-36V DC 0.2A / 4.5V DC (3xAAA batteries, 1,200 mA/h)
Battery Life (when operating on batteries) : ~ 2 years
Relay: max. 240V AC 6(4)A / max. 36V DC 6(4)A
Radio: 868 MHz, Mesh (6LoWPAN)
Display: 10 x 19 LEDs, 32 x 20 mm
Button: 1x Mechanical; 2x Capacitive Touch
Material: PC + ABS
Colour: white, matte
tado° Extension Box (Model BU01)
Dimensions: circa 102 x 150 x 28 mm (L x W x H) / circa 210 g
Operating Voltage: 5-36V DC 0.2A / 100-240V AC 0.2A
Relay: max. 240V AC 6(4)A / max. 36V DC 6(4)A
Radio: 868 MHz, Mesh (6LoWPAN)
Display: 1 x LED
Buttons: 1 x mechanical
Material: PC + ABS
Colour: white, matte
tado° Bridge (Model GW02)
Dimensions: circa 89 x 52.5 x 25.5 mm (L x W x H) / circa 61 g
Operating voltage: 5 V
Radio: 868 MHz, Mesh (6LoWPAN)
Material: PC + ABS
Colour: white, matte
Regulatory Conformity
EU Declaration of Conformity
tado° hereby declares that the tado° devices are in compliance with the essential
requirements and other relevant provisions of the following EU Directives:
• Low Voltage Directive 2014/35/EU
• EMC Directive 2004/108/EC
• R&TTE Directive 1999/5/EC
• RoHS Directive 2011/65/EU
A copy of the EU Declaration of Conformity is available at: tado.com/conformity
The WEEE symbol means that the tado° devices must be disposed of separately from
general household waste. When tado° devices reach the end of their lifespan, they
must be taken to a designated waste collection point for safe disposal or recycling.
This conserves natural resources, protects human health and helps the environment
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