Cleaning The Boiler - Bosch Buderus SB625WS Installation Instructions Manual

36 | Inspection and maintenance
System B (larger size)
▶ Put the door in its correct position.
▶ Tighten the main locking screws [1] until the packing starts to be
compressed.
Fig. 34 Position the door
Make sure that the door is properly adjusted after every
maintenance operation.
8.3

Cleaning the boiler

WARNING: System damage!
▶ Do not use abrasive cleaning pads or powder
detergents.
DANGER: Risk to life from electric shock!
▶ Before opening a unit: disconnect electrical power
and lock to prevent accidental reactivation.
NOTICE:
The combustion chamber and flues must be cleaned
periodically - at least once a year - by a qualified
technician.
Use a cloth damped in soapy water to clean the boiler's external
paneling.
To remove stubborn marks, use a cloth damped in a 50% mix of water
and denatured alcohol or a suitable cleaning product.
Carefully dry the boiler after cleaning.
Clean the boiler and remove any carbon deposits from the surfaces of
the heat exchanger at least once a year. This not only extends the
boiler's working life, but also keeps it efficient in terms of heat output
and consumption.
▶ Open the door [1] and pull out the turbulators [2].
6 720 805 218 (2013/02)
1
1
6 720 805 218-41.1T
▶ Use a flue brush [3] or other suitable tool to clean inside the
combustion chamber and the flue gas pipes.
Fig. 35 Clean the boiler
[1] Door
[2] Turbulator
[3] Flue brush
▶ Open the inspection port [3] and clean out any deposits from inside
the flue gas box.
If more thorough cleaning is required:
▶ Remove the outer panels.
▶ Unscrew the eight fixing bolts and pull firmly on the flue gas box [1] to
remove it from the boiler.
▶ Check at regular intervals that the condensate drain [2] is not
blocked.
Fig. 36
[1] Flue gas box
[2] Inspection port
[3] Condensate drain
1
2
3
6 720 805 218-42.1T
1
2
3
6 720 805 218-43.1T
SB625WS/SB745WS