Nibe PB 10, Installation And Maintenance Instructions Manual

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8 NIBE PB 10
Installation
Commissioning and adjusting
Settings
Adjusting the burner
The burner must be adjusted even if the burner is factory
set. This depends on different operating conditions (boiler
manufacturer, draft, pellet diameter mm).
The circuit board's supply times can be altered depending
on the pellet diameter, output and screw angle (max 45º).
The factory set times are marked in the table in the section
called ”Adjusting control electronics”, as well as on the in-
side of the burner's protective cover. If the times have been
changed, note the new times in the manual.
Indication via LED
Indicators Explanation
Continuous yellow light on
LD2 Not able to ignite after two
attempts.
Continuous green light on
LD3 Lost light 30 seconds when
firing and unsuccessful reigni-
tion.
Continuous yellow and
green light at the same
time on LD2 and LD3 Fault on screw supply.
Flashing yellow light on LD2 Photocell fault
Flashing red light on LD1 Fan fault
Changing times and fan damper etc.
If the conditions are altered after the installer trimmed the
burner with the flue gas instrument, a new reading must
be taken for good combustion and pellet economy.
The flue gas temperature can be changed by increasing,
respectively, reducing, the supply intervals for the pellet
screw and continuing with the fan damper (for increased
supply open the damper and reduced supply less open fan
damper). The required flue gas temperature depends on
the type of chimney the boiler is connected to. Masonry
chimneys require higher temperatures than steel chimneys,
usually, a masonry chimney drops in temperature by 15 –
20 °C/ meter and a steel chimney by 5 – 10 °C/ meter. The
temperature should be around 80 C one meter below the
top, this prevents condensation and frost damage in the
chimney.