PB-1525 Wood Pellet Burner System: Installation and Operation Manual
Rev 1.0, OCTOBER 2011
Page 48 of 67
on the amount of pellets burned, the firing rate of the system, the total
number of start/stop cycles between cleanings, the wood pellets being
burned during the season and the operation of the Optional automatic
burn chamber cleanout unit. Initially, it is recommended that the burner
be cleared of clinker buildup every 3-4 days in order to begin to predict
the amount of buildup experienced in your particular installation. Typical
cleanout periodicity is between 7-10 days during the heating season and
10-14 days during the non heating months when the system may be used
to provide domestic hot water only.
With the addition of the automatic burn chamber cleanout option, these
numbers can be adjusted upwards to give up to 4-weeks of uninterrupted
burn time. If this system is installed and operational it is still recommended
to check the burn chamber per the initial schedule above and adjust the
cleanout cycles as required. In addition, when checking the burn
chamber at regular intervals it will be necessary to remove the clinkers
from the bottom of the firebox in the boiler to ensure proper operation.
This can be done with a simple ash removal shovel inserted through the
burn chamber opening when the inner burn chamber is removed; the
boiler/furnace door does not need to be opened or removed for this
operation.
Every installation is different, and wood pellets from various manufacturers
can vary widely. In the initial weeks of operation with your system, keep a
log of your cleanouts using the hours and start/stop cycle counter on the
controller. Begin to learn the cleanout cycle that best suits the operation
of your system.
Remember, if you change the brand of pellet being used or your usage
pattern, you may also need to change your cleanout routine.
PELLET QUALITY MATTERS! If you burn pellets with a high ash or high
impurity content you will have to clean both your burn chamber and
boiler/furnace more frequently.
WARNING!
If using a vacuum to clean the boiler, use only one approved
for the removal of wood ash and let the boiler/furnace cool
down entirely before cleaning. Pieces of unburned pellets
and glowing embers may be present that can start fires.
CAUTION!
Failure to properly clean the PB-1525 can result in failed
operation of the system resulting in property loss or damage due
