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Atmos A25 Manual

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Operation and maintenance manual - EN
EN
www.atmos.cz EN-63
If the function (parameter S34) is turned on in the boiler, the following practice is used for
boilers DCxxSP(X)/(EP), CxxSP, ACxxSP:
If the boiler is burning out but the wood container still contains enough wood, we may directly
switch the boiler switch from wood to pellets.
The pellet burner will perform a DIAGNOSTIC which will be used to ascertain the current status
of the boiler (temperature of exhausts, temperature of the boiler, temperature in the accumulation
tank)
If the conditions for immediate start of the burner are not met (see above), the burner will remain
on standby, where the flue exhaust fan will remain in operation (if set) so that the wood can
properly finish burning (S6 = 4). AUTOSTART will start flashing on the burner screen.
If the AUTOSTART sign flashes slowly, the conditions set by the function (S34 = 1 or S34 = 2)
are not met.
If the AUTOSTART sign flashes quickly, the previous conditions are met, but the conditions set
by function (S15 = 2) are not, which means that the temperature on the accumulation tank did not
drop below the value set by S16 or the regulation thermoregulator on the boiler is not activated, i.e.
the end switch is not pressed (a star is not displayed on the boiler screen near the thermoregulator
symbol)
If all the conditions are met, the burner will start automatically.
INFO – In case of an electric outage, the burner will perform a DIAGNOSTIC and, if all
conditions are met, will burn out and return to normal operation. Otherwise it will await the
fulfillment of previous conditions (drop of exhaust and water temperature).
If we want to use wood to heat up the boiler, it suffices to place the switch on the wood
position. However, it is better to first keep the switch on the „0“ position for 10 - 15 minutes
so that the burner can properly burn out. This is an ideal time to prepare the fuel for stoking.
WARNING – DCxxSP(X)/(EP), CxxSP, ACxxSP boilers do not allow you to control the
solar heating function directly from the pellet burner. Additionally the TK and TSV sensors
are used for measuring the temperature of the boiler and exhausts during this function.
• Parameter S35 – characterizes the limit (max.) temperature of the boiler TK, during which the
burner will automatically start during the AUTOSTART function (S34 = 2)… (75 °C)
• Parameter S36 – characterizes the limit (max.) temperature of the exhausts TSV, during which the
burner will automatically start during the AUTOSTART function (S34 = 2)… (80 °C)
WARNING – after placing the exhaust sensor TSV on a side of the burner flue pipe, the
TSV temperature is not the exact temperature of the exhausts but the difference temperature
for the automatic start function. If we want to place the exhaust sensor directly on or into the
flue pipe to measure the exhaust temperature precisely, it is necessary to always use a sensor
with a higher heat resistance of up to 400 °C.
• Parameter S37 – characterizes the requires temperature of the boiler TK during which the pump in
the boiler circuit will be activated. This will only occur if the required temperature is reached and
the boiler is in OPERATION or burn-out mode (S14=13 with modules AD02 or AD03)… (75 °C)
It is also necessary to re-check or set parameters S38, S39, S40
… 63 …


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