Automatic boiler for wood pellets
Instructions for installation and operation
Note:
The most frequent cause of this situation is that the temperature of water in MENU 2 has
been adjusted too high - for example over 90°C. Under these circumstances, the FALL state may
convert into the ALARM state.
Precaution: Reduce the output temperature in MENU 2 down to 80°C, for example.
Having the control unit and thus also the boiler been put into operation, it is necessary for the
output water temperature to drop under 65°C. If this condition is not met, it will not be possible to put the
control unit into operation.
When the boiler is being put into normal operation again, proceed as follows:
1) Leave the boiler out of operation until the output water temperature (see the display unit) drops
under 65 °C.
2) Then depress the reset key of the safety thermostat until the reset signal (clicking) is heard. (The
reset key of red colour is accessible without any tool by removing the top part of the jacket and by
unscrewing its black cap.)
3) Now turn the control unit off with switch for approximately 10 seconds and then turn it on again.
The boiler will thus get into operation in the same programme mode as it was before the failure.
8.2 STOP STATE – DUE TO WATER TEMPERATURE DROP
If the boiler does not reach the expected temperature of 30 °C within 10 minutes after ignition, the
control unit will assess this situation as abnormal and operation of the boiler will be stopped.
Reasons may be:
−
low-quality fuel
−
lack of fuel
−
impassable transport routes, etc.
This situation is indicated by the following script on the display unit:
STOP STATE
Useless idle operation of the boiler or pouring of unburnt fuel on the burner and ash pan is prevented
when the operation of the boiler is stopped.
After the operator has removed the reason for the STOP state, the automatic operation of the boiler
can be resumed by depressing the key
AUTO/MANUAL
.
8.3 STOP STATE – BLOCKED FEEDER
Motor protection of feeders with pulse sensors will stop the operation of the control unit, if the
expected number of pulses does not come to the input of the control unit. Operator is notified of this
situation with the script " BLOCKED FEEDER x" on the display unit.
It is protection of motors against damage as well as a fire protection element (if only the feeder 2 gets
blocked, this might result in filling the whole transport route with fuel or the fuel might get burning up to the
bin).
The STOP state will prevent from overloading and destruction the corresponding motor of feeder.
The reason may be:
−
inappropriate fuel
−
foreign object in the transport route
Precaution: Remove the reason for blocked feeder by cleaning the transport route.
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Summary of Contents for KP 10
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