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time PROG is reached. After switching time PROG the
temperature selected to switch PROG will be valid until
the time of the next switch (PROG ).
• The start time of switch PROG is , which cannot be
changed, only its temperature can be adjusted. So under
the factory default settings, the thermostat performs only
one switch (PROG ) every day, which is in eect from
until the next day.
Note: Setting just one switch for a day (factory default
setting) is reasonable only if a constant temperature is
needed all day. (For example, if for every weekday a
constant 16 °C, and for every weekend a constant 22
°C is needed.) Otherwise, from both a comfort and an
energy-eciency point of view, it is recommended to
activate more than one switch for each day. Furthermore,
it is advised that a comfort temperature is used only those
times, when the room or building is in use, since every
1 °C decrease of temperature saves approximately 6%
energy during a heating season.
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