Frost Protection; Switching On/Off The Heating Mode; Switching On/Off The Ventilation Mode; Switching On/Off The Overtime Timer (Extend Timer) - Mark OptiTherm Livret Technique

4.3 Frost protection

The OptiTherm is supplied with a frost protection function. This means that when the room
temperature falls below the set frost temperature, the air heater(s) are automatically switched on.
That is also the case when the heating mode is not switched on. The frost temperature is set as
standard at 5°C, you can change that, if you wish, for that see §5.2 change temperature setting.
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4.4 Switch heating mode on/off.
To switch the heating mode on or off, you push the button "heating".
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The flame symbol will now appear on the display so that you can see that the heating mode is
switched on. With heating request, the status bar will also appear on the display.
4.5 Switch ventilation mode on/off.
To switch the ventilator of the air heater on or off, you push the button "ventilation".
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The ventilator symbol will now appear with I or II on the display so that you can see that the ven-
tilator is switched on.
Note!
The ventilation mode can be used at the same time as the heating mode. So if you wish during
heating mode you can have the ventilator running continuously.
4.6 Switch overtime timer on/off
When you want to switch to another operation mode outside the program switch times you can
make use of the overtime timer
See the image below:
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– Switch on overtime timer
or increase the time duration.
– Switch off overtime timer
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9 0 .
08:00
2 0 .
08:00
2 0 .
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1x = 00:15
2x = 00:30
3x = 00:45
enz...
: press in
Every time this button is pushed in, the time duration is in-
creased by 15 mins.
: keep
remaining disappear from the screen
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hold
± 3sec.
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button
button pushed in until the symbol and the time