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Commissioning:
In order to put the control unit and the boiler to automatic operation it is necessary that the water outlet
temperature fell below 65 ° C. If this condition is not fulfilled, the control unit will not start.
When putting the boiler back into normal operation, proceed as follows:
1.
Leave the boiler so long out of operation until the outlet water temperature (see display) drops below 65 ° C.
To accelerate let run the pump.
2.
Then press the red reset button of emergency thermostat. Then you must hear a click of the trigger. The
reset button is under the black plastic cap and is accessible without the tool by opening upper boiler door
labeled "EMERGENCY THERMOSTAT".
3.
After pressing of button and the screen corfirmation, the boiler automatically returns to the original mode.
Comment:
If you can not after pressing the trigger to the security thermostat confirm the alarm message,
check the emergency thermostat of burner.
9.5 ERROR - OVERHEATING, OPERATING THERMOMETER
The control unit is equipped with a programming routine which emergency back-up any control of emergency
thermostat. When operating thermometer indicates temperature higher than 100 ° C, the boiler control unit
ensures boiler´s shut down.
This is indicated by the inscription on the display:
It is enabled only circulating pump for heat dissipation of the heat exchanger.
Under normal circumstances, there is no overheating of the boiler, so this condition is considered an emergency.
It requires operator intervention (service), which must evaluate why this situation occurred.
Possible causes
defective emergency thermostat
broken wire between the control unit and
emergency thermostat
emergency thermostat probe is not inserted in the
sump
Commissioning:
Is entitled to a professionally trained person.
9.6 ERROR – OVERHEATING IN FUEL PATH
By adding thermostat to the burner in the enter area of fuel we can increase the security of boiler. The boiler is
protected against reverse blazing and against reverse thrust of combustion products in the fuel transport path. It
is a measure beyond the requirements of ČSN EN 303.5 for more security.
If the temperature at the connecting plastic hose rises to about 85 ° C security thermostat will close its contact
and the control unit stops the operation of the boiler. This is indicated as well as overheating of security
thermostat.
The temperature rise of burner´s monitored areas should not occur under normal circumstances. Therefore, this
condition is considered as an emergency.
It requires operator intervention (service), which must evaluate why this situation occurred.
Automatic boiler for wood pellets
Elimination
replace emergency thermostat
replace the faulty wire
insert and fasten the probe in the sump
64
Performed by
service
service
service
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