KEPO AC 15 Installation And Operating Manual page 16

In the stand-by mode (Figure 9) the boiler raises temperature by 2°C once the desired value is reached, and
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then it shuts down. When the set temperature (of water or boiler room) drops by 2°C below the set value, the
boiler will automatically perform the entire startup procedure.
This mode is recommended with well-insulated rooms, i.e. where the boiler will not have to turn on and off too
frequently, as well as where there are temperature oscillations in the transitional period.
In case this mode is turned off, the boiler will reach the set temperature and go back into the modulation
mode, reducing power until it enters the operating stage 1, where it will maintain fire with minimum power.
During operation, the boiler automatically performs a 20-second cleaning of the fire pot every 20
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minutes. It then reduces pellet dosage and turns up exhaust gas ventilator. The display then shows the
CLEANING FIRE POT message, as shown in Figure 10.
Figure 9
Figure 10
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