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Errors, functions and actions of the regulator – summary
Errors and functions Actions or operation of the regulator
Power shortage After the power supply is restored, the operation state is reset as it
was before the power shortage (the boiler is started or stopped
again).
Too high boiler temperature < 90 °C: the fan is stopped
> 89 °C: the fan is started
Incorrectly measured values of
the boiler temperature
The flue gas fan and the supply pump are stopped. The boiler cannot
be started.
Incorrectly measured values of
flue gas
The boiler can be started. The regulator works with the alternative air
V1 and V2. It is necessary to turn the boiler off manually after
burning down!
Incorrectly measured values of
O
2
sensor (Lambda probe)
No line plot is displayed during the heating up.
It is possible to start the boiler, the regulator works with the
alternative air V1 and V2.
Automatic stop functionby the
flue gas sensor
If the boiler works for
30 min
utes and the flue gas temperature
decreases by 25 % during 15 minutes, the boiler is stopped.
The STB is started The surplus heat outtake is stopped
if the boiler temperature is
< 85 °C. Then, if the boiler temperature increases> 86 °C, the surplus
heat outtake.
Function of the switch contact When the boiler is in operation
: WK/AK
is closed
When the boiler is turned off and the flue gas temperature is<100 °C:
WK/RK is closed
The CPU error All the relays are tu
r
ned off by the
Hardware Watchdog
Protection against freezing By the boiler stopped with the temperature< 7 °C:
Start of the supply pump, Y1 and Y2 = 100 %.
If the boiler temperature increases to > 8 °C, the supply pump is
stopped.
Y1=0 %, Y2= 100 %.
Protection of the flue gas fan and
the flue gas sensor against
overheating
Flue gas temperature
> 350
°C, the flue gas fan is turned off
Flue gas temperature< 299 °C, the flue gas fan is turned on
Short circuit of the„+“ button Button of the regulator does not react even to a significant pressure
Function of access (Menu) The menu automatically disappears after the safety time elapses
Safety test Takes max. 30 min and it is automatically terminated or interrupted,
if the boiler temperature is> 110 °C,or the„+“button has not been
pressed for 30 seconds
Operating range of the
automatic adjustment of the
return connection to the
particular value.
Between 60 °C and 80 °C
Operation without settings is
controlled by technician
The regulator is adjusted after the setting by producer.
Data storing Only when there is enough energy> 160V.
54


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