- 36 -
12.
MAINTANACE AND SERVICING
13.1 FOR PELLET
Do not open any part on the boiler or burner when the system is running. Please stop the burner
and wait up to no flame condition, after 30 minutes disconnect the power supply and always wait
until all the parts are cooled down before cleaning and servicing operations.
In order to extend the lifetime and increase efficiency at every heating season or once a year please
call your authorized service to;
Clean the boiler heat exchanger surfaces
Check the combustion parameters
Check the security and operational devices
Check the adequate chimney draught
Cleaning period depends on plant features, fuel and combustion parameters so after first
commissioning please control the burner and boiler heat exchange surfaces once a month, if they
need any cleaning. After few controls you can decide the period of cleaning you will need.
Stop the burner
Wait for cooling the boiler (min 2 hour)
Stop the circulation pump
Disconnect the main power supply
Dismantle the burner and check the combustion pipe. If it needs cleaning please dismantle
the combustion pipe and clean all surfaces.
Dismantle the top boiler jacket
Dismantle the boiler top cover
Take out the turbulators
Clean the 2
nd
pass pipes by tube brush
Open the bottom ash door and control the ash box. If needed clean manually.
Put back all the dismantled part in its proper place in reverse order.
Connect the main power
And run the system.
Again once a year call your authorized service for checking the combustion parameters, security and
operational devices.
Do not alter the security devices preset values
Reset the burner fault maximum 3 times and still not firing call your authorized service
If the flue gas seals in any part of the boiler and flue gas exhaust is not functioning properly and
there is a flue gas leakage stop the burner and please call an authorized service for repair or
replacement.
Check the makeup water analysis periodically to avoid the formation of scale and corrosion which
initially reduces the system efficiency and in long term will permanently damage the boiler.
Periodically check the safety and operational equipments.
During the long shut off periods run the circulation pump(s) and anti-condensation pump 5
min/month in order to avoid pump shaft lock-out.
Frequent make up water need should be nonexistent it is a symptom of leakage which should be
repaired as soon as possible. Adding water to the system will shorten the life of the boiler
dramatically.
System water never fully drained if it is not necessary. Corrosion is very rapid in empty systems.
New water filling means adding new scale and oxygen to the system. Both reasons cause to shorten
the boiler service life and cause loss of efficiency.
