5 Operation
5.1 Activate the termostat
CD0000455
Power on/reset display
CD0000453
The software version is displayed after power on, or after a product
reset.
Current mode
CD0000454
After the power has been set on or the thermostat has been reset,
the thermostat runs current mode (Comfort or ECO).
Thermostat key descriptions
CD0000428
A
B
C
Key/icon
Description
―
Minus/decrease
O
OK
+
Plus/increase
Press a key on the thermostat T-27 to initiate an action related to that
key.
― and + keys
The keys
–
and
+
are used to
•
Adjust setpoint temperature
•
Move from one parameter to the next/previous one in the
settings menu
O (OK) key
The key
O
(OK) is used to
•
Display temperature measure
•
Toggle between current status data, and values of available
sensors connected to the thermostat
•
Enter and exit the settings menu (holding the key for about
3 seconds
)
•
Confirm a setting
5.2 LCD display descriptions
CD0000456
A
E
D
C
F
H
B
G
Symbols/icons
The figure shows all possible symbols and characters that can be
shown on the display:
Item
Icon
Description
A
Comfort/ECO modes
Visible depending on the selected
mode
B
Temperature
Value from internal or external
temperature sensor
C
Locked display and keys
D
Settings
E
Settings menu number
F
Heating/cooling demand on the
display
G
Temperature unit
Uponor Base thermostat display T-27 230V
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Installation and operation manual
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