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tado°  – Manual & Technical Documentation V1.1

11

Interfaces

The tado° Extension Box has connectors for relays (labeled 1-4) as well as analog and 

digital interfaces (labeled A, -, +). Two relay wiring configurations 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 stan-
dard 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 Backplate

Switching 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.

Summary of Contents for RU01

Page 1: ...Manual Technical Documentation V1 1 tado Smart Thermostat tado Extension Kit ENGLISH...

Page 2: ...mostat 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 Installa...

Page 3: ...rols 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...

Page 4: ...r 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...

Page 5: ...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 Meanin...

Page 6: ...mmediately 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 throug...

Page 7: ...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 Ho...

Page 8: ...ion 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 Br...

Page 9: ...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 appe...

Page 10: ...ed 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 re...

Page 11: ...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 Conn...

Page 12: ...t 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...

Page 13: ...Jumper Position 2 Switched Live This wiring option corresponds to a 230V dual relay programmer In case a UK stan dard backplate is present and wired as a 230V dual relay central heating and hot water...

Page 14: ...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...

Page 15: ...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 i...

Page 16: ...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 C...

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