Electronic pellet burner controller - NPBC-V6T-2
Unfolding-
This control menu is for the process of smoothly unfolding the fire after its ignition.
The upper field sets the fans' speed, main fan and exhaust fan and the duration of burning of the
first fuel dose. In the bottom field sets for how long the burner should work on P1 and P2 power
levels before switching to the required power level according to the boiler's temperature. The
bottom field sets the time for holding for each power level in the process of smoothly increasing
from the power of the smallest P1 to reaching the nominal level according to the boiler's set
temperature.
Power P1, Power P2, Power P3, Suspend
- Identical menus for setting the parameters of each
power level from smallest P1 to desired level for maintaining of the fire. For the dosage to the
amount of pellets, is set the Feed selection, which is the operating time of the fuel auger, and row
Cycle, which is the time between two fuel supply periods. To burn the fire properly it needs to add
sufficient air. So, you must adjust the speed of the main fan (row Fan) and the exhaust fan(row
exhaust fan).
The Power P3 must be set to maximum possible power, that burner can achieve. The power P2
should be 50% from P3,and P1 to be 20% from P3.With these settings the controller will be able
smoothly to modulate the power of the burner in range from 20% to 100%, changing the power if
it is necessary for each new cycle. For example: if you need power 75%, the controller will switch
between P3 and P2 and then again to P3 on equal time intervals. In this case the average power
will be (100+50)/2 = 75. The time for switching will depend on the whole system inertia and the
set temperature differences in the menu
Service Settings » Power Modulation.
The shortest
switch time interval could be the cycle which is 20-30 seconds. For such a short period of time,
the temperature of the heating installation can't change significantly and it's impossible for a
human to sense the ripples between the power levels. When also adding power level ''Suspend'',
witch will be smaller than P1, the burner will have wider rage of modulation.
User Manual / ver. 1.2
http://www.naturela-bg.com/en/
page 37 of 41
Waiting time for
burning the first dose
and fans speed
After burning the first dose
It will work it will work for
60 sec. with power P1 and
another 60 with power P2
Calculated power of
base entered
caloric and capacity
on the fuel auger 1
At every 30 seconds
fuel auger turns on
for 3 seconds
Fuel number 1
Power number P1
