Buderus Hydronic Systems G215 User Manual
Boiler maintenance11
11 Boiler maintenance
11.1 Why is regular maintenance important?
Heating systems should be regularly maintained for the
following reasons:
– to achieve a high level of efficiency and to operate
the system economically (low fuel consumption),
– to achieve a high level of operational reliability,
– to maintain the cleanest possible combustion.
Offer an annual inspection and maintenance contract
(depending on requirements) to your customer. You can
check in the inspection and maintenance reports
(Î Chapter 11.6, page 54) what should be included in
such contracts.
NOTICE
You may order spare parts from your local
distributor.
11.2 Preparing the boiler for cleaning
z Shut down the heating system (Î Chapter 10.1,
page 49).
DANGER TO LIFE
from electric shock.
WARNING!
z Remove the burner door panel or the burner hood
from the boiler.
z Disconnect electrical supply to burner.
WARNING!
z Before you open the control: shut off
electrical supply and secure against
accidental activation.
DANGER TO LIFE
through the explosion of volatile gases.
z Work on gas components must be
carried out by qualified and authorized
personnel only.
50
We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Logano G215 US oil/gas-fired boilers • Issue 2014/10
Boiler maintenance 11
11.3 Boiler cleaning
The boiler can be cleaned with brushes and/or by a wet
method. Cleaning equipment is available as accessory.
DANGER OF BURNS
by touching hot boiler parts.
CAUTION!
z Open burner door by removing the two hexagon bolts
on the sides.
11.3.1 Cleaning the boiler with cleaning brushes
z Note the position of the flue gas baffle plates to
enable their correct re-installation later.
z Remove the flue gas baffle plates from the flue gas
flues.
z Clean the flue gas baffle plates with one of the two
cleaning brushes.
z Wear appropriate protective gloves or
use pliers.
3
2
1
z Clean the flue passages by turning the round
cleaning brush.
Fig. 67 Open the burner door
1 Combustion chamber
2 1. flue gas pass
3 2. flue gas pass
Fig. 68 Brushing out the flue gas passages
We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Logano G215 US oil/gas-fired boilers • Issue 2014/10
51
Boiler maintenance11
z Clean the combustion chamber with a flat brush.
Remove the debris from the combustion chamber,
the flue passages and the flue connection.
z Install the flue baffle plates in their original position.
z Check sealing rope on burner door. Replace
damaged or hardened sealing rope.
NOTICE
You can obtain suitable sealing rope from
your local Buderus distributor.
z Close burner door with the two hexagon bolts
(approx. 90 lbs/inch) Tighten the hexagon bolts
evenly to properly seal the burner door.
11.3.2 Wet cleaning (chemical cleaning)
When using a wet cleaning method use a suitable
cleaning agent (soot or accumulation of debris).
Proceed with the wet cleaning in the same order as
described for cleaning with brushes (Î Chapter 11.3.1,
page 51).
NOTICE
Observe the instructions for use of the
cleaning agent. You may need to proceed
differently from the method described here
in some circumstances.
z Cover the control panel with plastic to prevent spray
from entering the control panel.
z Spray cleaning agent evenly into the flue gas passes.
z Close burner door and start up the heating system.
z Heat the boiler to a temperature of at least 160 °F.
z Shut down the heating system.
z Brush out the hot gas flues.
Fig. 69 Brushing out the combustion chamber
52
We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Logano G215 US oil/gas-fired boilers • Issue 2014/10
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