Optima Company 600 - 1700 - Manual (Page 21)

21
Advanced menu
Hysteresis
Hysteresis settings can be made under Heating system temperature. The
hysteresis determines when the heat pump (compressor) is to start/stop in
relation to the heat curve’s value. The compressor continues slightly longer
than according to the curve and starts again when the fl ow temperature has
dropped somewhat below the value of the curve. In this way, the heat pump
is prevented from starting and stopping continuously.
There is usually no reason to adjust the hysteresis factory settings or those
having been set by the installer.
Set the desired room temperature
If you have a room sensor connected to the heat pump you can set the
required temperature in the room from the Room sensor settings menu. This
is carried out in the same way as in Menu (initial menu).
You can also set how much the sensor is to affect the heating system by
selecting Room sensor infl uence and adjusting the Change factor. Min = 0,
max = 10. A higher factor gives a greater infl uence from the room sensor.
After a heat lowering period, e.g. time control or holiday, the room sensor
infl uence is blocked for a set time, factory setting is 4 hours. Min = 0 and
max = 24 hours. The function Blocking time is under Room sensor infl uence
and means that the heat pump is given time to increase the fl ow tempera-
ture more slowly than if the room sensor is allowed to infl uence.
Time limited settings
Time control
The Time control heating function can be used to lower or increase the
temperature on different week days at chosen times.
1. Select Time control heating in the menu Time limited settings under
Temperature .
2. Select Day and time .
3. Enter the week day and the time at which time control is to occur.
Select On.
4. Select Save to save the change or Cancel to return without saving.
5. Select Change in temperature and set the desired value.
Min = -20ºC, max = +20ºC.
6. Select Save to save the change or Cancel to return without saving.
To remove a time control setting, fi nd the desired setting and select Off.
Time control is not recommended
in normal conditions as it can affect
consumption negatively.
Note