17
- if during frosty weather the room
temperature is too low, and when it gets
warmer - it is too high, it is recommended to
decrease the Curve translation and to select
a higher heating curve.
Buildings with poor thermal insulation require
higher heating curves, whereas for buildings
which have good thermal insulation, the
heating curve can have lower value.
The regulator can increase or decrease the
preset temperature, calculated in accordance
with the heating curve, if it exceeds the
temperature range for the given circuit.
8.18 Description of settings for night-
time decreases
The regulator allows to set intervals for
decreasing preset temperature of boiler,
heating curves, hot utility water tank, and
operation time of the circulating pump.
The intervals allow to decrees the preset
temperature at specified periods of time –
e.g. at night, or when the users leave the
heated rooms (e.g. when the household
members got to work/school). This allows to
decrease the preset temperature
automatically, without losing thermal comfort
and with decreased fuel consumption.
To activate time intervals - set the
parameter: Night time decrease for the given
heating circuit at ON.
Night time decrease may be set separately
for working days, Saturdays and Sundays
Fig. 6 Time interwal setting window.
Select decrement of the set temperature and
beginning and end of respective time
interval. Three intervals within 24 hours are
available.
The example of night time decrease of preset
boiler temperature from 22:00 to 06:00 next
day and from 09:00 to 15:00 is given below.
Setting of time intervals for 24
hours (one day) should start from
00:00
Fig. 7 Example of time interwal setting
In the given example the regulator will set
the decrease of preset boiler temperature by
3°C from 00:00 to 06:00, and will keep the
preset value (without decrease) from 06:00
to 09:00, then it will set the decrease by
5°C from 09:00 to 15:00, and will keep the
preset value (without decrease) again from
15:00 to 22:00, and again will set the
decrease by 3°C from 22:00 to 23:59.
Time interval is disregarded when
its decrease is set at "0” even
though "from..." to ..." values have
been entered.
Decrease of preset boiler
temperature in selected time
intervals is indicated by the symbol:
on main screen
Boiler Wight time decrease
Boiler Wight time decrease/ Saturday