64
operating mode.
b) Selecting the temperature unit (“°C°F”)
You may set whether the temperature is to be displayed in
degrees Celsius (°C) or degrees Fahrenheit (°F).
• Press the “PROG” key until “Sond” is displayed (for spe
cial function).
• Use the selection wheel to select the special function
“°C°F”.
• To confirm your selection, briefly press the “PROG” key.
• Use the selection wheel to switch between “°C” and
“°F”.
• To confirm your selection, briefly press the “PROG”
key. The heating control returns to the normal operating
mode.
c) Setting of date and time (“dAt”)
• Press the “PROG” key until “Sond” is displayed.
• Use the selection wheel to select the special function
“dAt”.
• To confirm your selection, briefly press the “PROG” key.
d) Setting the safety code (“CodE”)
To protect the heating control against interference from oth
er radio systems the device uses a safety code consisting
of two parts. Each part of the code comprises 100 setting
options. This means that there are 10,000 different safety
codes available.
To ensure communication between the “FHT8R” heating
control and the “FHT8V” valve operating mechanism/s
the same safety code has to be set for all devices in a
room.
