Wood-pellet burner
Nani 35
17. Self cleaning operation
Self cleaning can be activated only when the burner is equipped with an electro-
valve and it is connected with an air-compressor.
Minimum requirements for air-compressor:
10Lt at 7bar, or 6Lt at 8 bar
SELF CLEANING FREQUENCY TIME
:
It is the maximum time the burner can work
without interrupted by Self Cleaning procedure.
SELF CLEANING TIME
: It is the time the electro-valve is activated to remove the
ashes form the burner.
Activation of self cleaning:
It is activated by changing the parameter “SELF CLEANING
TIME” from “Off” to “
x
sec” (for example 3sec)
18. Burners safety systems
For total, fail-safe security, the burner is equipped with four safety systems:
1. The plastic pipe connecting the feeder with the burner. This tube will melt away from
the burner in event of a too high temperature, thereby breaking contact between pellets
fuel replenishment and the burner.
2. The burner’s fall-tube is equipped with a back-burn protection system which is
triggered at 65
o
C. The back-fire protection system is placed on the fall-tube. In the event
of the alarm being triggered always investigate the cause and rectify.
3. The Overheating Boiler sensor (STB sensor), which is activated when the boiler's
temperature is higher than 95
o
C. When this protection is activated, the light next to the
STB sensor is ON and the the feeder is turned off. The, you must reset the STB sensor, the
feeder to work again.
4. The photo sensor senses that ignition has taken place and is running normally.
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