Programming The Thermostat - Computherm Q7RF Operating Instructions Manual

3. PROGRAMMING THE THERMOSTAT

3.1 A brief introduction to programming
• Programming means the setting of switching times and selection of
accompanying temperature levels. The device can be programmed for a
one-week period. Its operation is automatic, and it will cyclically repeat the
programs that have been keyed in. For each day, beside 1 fixed switching
time, 6 adjustable switching times can be set. For all switching times a
different temperature can be assigned between 5 and 35°C, in 0.5°C
increments. The temperature set for a given switch will remain valid until
the start time of the next switch. Accordingly, the thermostat will keep the
temperature set for switching time
After switching time
until the time of the next switch (
• The start time of switch
temperature can be adjusted. So under the factory default settings, the
thermostat performs only one switch (
00:00
from
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-efficiency 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.
As opposed to common belief, keeping a flat warm requires more energy
than heating it up. (When using a stove, more gas is needed to keep a pan
of water boiling than to just keep it warm.)
• The 1 6 switches are deactivated by factory default (their start time is
-
P P
--:--
), but they can be activated at need. Their start time can be freely
set between
that their start time should be in increasing order and a difference of at least
10 minutes should be between them. This minimum 10-minute difference
is going to be preserved even if a previously activated switch is modified,
in order to avoid co-occurring or overlapping switches. In such a case,
the device automatically increases the start time of the affected switches
until a difference of at least 10 minutes between them is reached. If the
start time of a switch would be later than
modification, then that switch is deactivated instead.
• In order to enter the programming mode, press the "SET" button and
hold it down and press the "PROG" button, too. During the programming
the values being adjusted are flashing on the display. The modification
of these values can always be done using the large
The confirmation of a value is always done by pressing the "PROG"
button, after which the next value can be adjusted. The program can be
1 the temperature selected to switch
P
0 is
P
00:00
until the next day.
00:10 23:50
and
0 until switching time
P
2 ).
P
00:00
, which cannot be changed, only its
0 ) every day, which is in effect
P
at 10-minute intervals given the constraint,
23:50
- 7 -
1 is reached.
P
1 will be valid
P
because of this automatic
and buttons.