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TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
CAUTION! You must use gas
analyzer when setting the burner.
The Pell pellet burner is equipped with
two-step output adjustment and their
setting depends on the boiler and heat
requirements of the heating installation.
11.1. Calibration of auger fuel feed rate.
The auger fuel feed rate changes
depending on the density and size of the
fuel used. Therefore it is necessary to
calibrate the main auger every time you
change the type of the fuel used.
CAUTION! It is recommended to
use the same fuel throughout
the heating season.
Once you have installed the pellet auger
according to the instructions in the
manual, fill the hopper with fuel (pellets).
Connect the power supply of the pellet
auger directly to the power mains. The
auger is now in operation. Wait about
15-20
minutes for the pellet auger to
fill with pellets. The auger is filled with
pellets when pellets begin to fall from the
T-branch of the auger at the point where
the auger hose is attached.
Filling of the pellet auger is necessary
when the fuel in the hopper has been
depleted or when fuel has been changed.
Once you have ensured that the pellet
auger has been filled, take an empty
plastic bag and fixed it securely on the
pellet auger, at the place of the auger
hose. Reconnect the auger to the power
socket and measure the amount of pellets
collected in the bag over a period of 15
minutes using scales/weighing scale.
(In our example, the amount of pellets
collected in the bag over a
15
-minute
period is
7875
grams. (
900 sec
). We
then divide
7875
by
900
and get
8.75
grams of pellets per 1 second. Repeat
the measurement in order to obtain
conclusive results.
11.2. Burner output adjustment.
In the burner output settings menu you
can adjust the running time of the main
auger (
Feed
); main running interval
(
Cycle
) and fan output (
Fan
).
Example for Pell 25 model:
we select
mode Cycle =
20 sec.
The heating value of
your fuel is
4.8 kWh/kg
. (manufacturers
indicate the heating value of the fuel on
the packing – take it from there). We then
employ the following formula to calculate
the number of seconds for setting the
operation of the main auger for these 20
seconds.
t
FEED
= 25 000/(4.8 x 180 x 8.75)
hence
t
FEED
=
3.3 sec.,
where
25 000
is the desired
output of the burner in Watts (W),
4.8
is
the heating value of the fuel in kWh/kg
,
180
is the number of burning cycles per
1 hour,
8.75
is the amount of pellets in
grams fed by the auger per 1 second.
This way the output mode can be
changed and instead the number
25 000
– 25kW
, we input the desired kilowatts
(40 kW=40000 W, 70 kW=70000 W etc.).
Take also note of the fuel heating value
which would change the value for the
feed and the burner output.
Using the above procedure, you can
set any of the two output modes of the
burner.
Mode
: Max Power Setup
- It is
indicated by two flames.
Pellet auger running time (Feed)
–
3.3
sec. (25kW)
Main combustion cycle (Cycle)
–
20 sec.
(recommended)
