tado° – Manual & Technical Documentation V1.1
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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 pla-
ced 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
