General Information; Pellet Storage - SWEBO PB/20 Installation And Maintenance Instructions Manual

Rev no. Date
PBM1:12 2018-01-22
1

GENERAL INFORMATION

The PB20 pellet burner is intended to replace oil burners, other types of pellet burner or for installation in existing boilers without
burners and for installation in one of the boilers compartments. Thanks to its small size and accompanying adapter plate it is
suitable for most types of boiler.
In terms of function a pellet burner does not differ greatly from an oil burner, it fires up or increases a power stage automatically
when the boiler temperature drops, or goes out or decreases a power stage when the desired temperature is reached. This
burner is also equipped with an extremely advanced and flexible electronic control system with a large number of adjustment
options with the possibility of modulated output. Modulated output means that the burner can operate in four independent power
stages. This means fewer firings as well as better operation. Both the fan and fuel feed can be adjusted separately for the four
power stages, further information can be found in section 6.
Often, the old overheat thermostat can also used for the new burner, which further facilitates the installation.
In line with development over the last few years, the required maintenance of the pellet burner has been reduced drastically and
can be considered to be minimal on these burners. (read more in chapter 10)

1.1 Pellet storage

Stores can be designed relatively generously according to what the space allows. However, Swebo's 300 litre ready pellet store
or bulk store are recommended.
Regardless of the choice of store, it is extremely important that the feed auger's angle towards the horizontal never
exceeds 45° and that the auger is installed in such a way that the blue tube exits at the side of the drop pipe when it
hangs freely. An example of a well planned out boiler room is shown below.
SWEBO Bioenergy
Manual pellet burner PB20
Page
5 (36)