8. Operate Uponor Thermostats
Batteries for thermostats
All thermostats use two alkaline 1.5 V AAA batteries. Ensure
that the batteries are correctly inserted in the thermostats.
Clean thermostats
Use a dry soft cloth to clean the thermostats.
Do not use detergent or any other liquids.
8.1 Operate Thermostat with display T-75
The thermostat displays the room temperature during normal
operation, as shown in the illustration below.
The table below describes the numbered items in the
illustration.
Item Description
1
LCD display
2
Temperature sensor for ambient temperature
3
+ and - keys to set temperatures
4
Thermostat registration button
Thermostat with display T-75 icons
The table below describes the icons displayed on the Uponor
Thermostat with display T-75.
Icon Description
Temperature display with menus and a precision of 0.1°
Displayed when setting the temperature set point
Displayed during radio transmission
Temperature format for the display
Low battery indicator
Change temperature format
To change the temperature format to Celsius or Fahrenheit:
1 Simultaneously press the + and - keys until the
SEL menu appears.
2 Press + or - to change the temperature format
(°C or °F) and wait until the thermostat returns
to the initial display.
Adjust temperature
Use the + or - key of the thermostat to adjust the temperature.
To reset the temperature set point to the startup value of 22.0°C
(72.0 °F), gently press the + and - keys simultaneously.
To change the temperature set point:
1 Press the + or - key. The set point icon and value
are displayed.
2 Press + or - to change the set point value:
For °C, setting by 0.5 °C steps.
For °F, setting by 1 °F steps.
3 Wait until the radio transmission icon is displayed,
confi rming that the set point is changed, and the
display returns to normal.
Set minimum/maximum temperatures
The minimum and maximum temperatures (5 °C and 35 °C)
of the thermostat are set and cannot be changed unless the
system is equipped with Uponor Interface I-75/76.
Replace batteries
The thermostat is powered by batteries. Replace the batteries
of the thermostat when the symbol
is displayed. The
illustration below shows how to open the thermostat.
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