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We recommend to use high-quality alkaline batteries
only. Operation of the heating control using accumula-
tors or conventional zinc-carbon batteries is possible,
operating time and radio range of the heating control
will, however, be reduced.
Furthermore, there will be a risk of malfunctions.
Make sure to insert the batteries correctly to avoid
damage to the electronic components of the heating
control.
• Closethebatterycompartment.
• Theheatingcontrolperformsashortdisplaytest.After
the display test, you have to set date and time).
• Ifthebatterysymbol(“
“)isdisplayedontheLCdis-
play, the battery voltage is low and the batteries should
be replaced as soon as possible.
The same applies, if the radio range decreases or if data are
nolongerdisplayedontheLCdisplay.
6. Wall mounting of “FHT8R“
a) Choosing an appropriate mounting location
Make sure to choose an appropriate location for mounting
the “FHT8R” heating control. This has to meet the follow-
ingrequirements:
•centralpositionintheroomwherethetemperatureisto
be controlled
•easyaccessforconvenientoperation
•mountingateyelevelforeasyreadingofthedisplay
•nomountingonabadlyinsulatedouterwall
•nodirectsunlight
•nointerferencefromheatsourcessuchasradiators,TV
sets, lamps, refrigerators,etc.