50
Installation and maintenance instructions Gas Boiler Logano GC124 II/SP • Issue 07/2006
We reserve the right to make any changes due to technical modifications.
Boiler inspection and maintenance
16
22.
Remove top boiler insulation.
23.
Unscrew cleaning cover from the venting manifold.
24.
Cover control with foil to prevent entry of metal dust
into the control.
25.
Use boiler brush to clean out flue gas passages.
26.
Clean combustion chamber and bottom insulation.
27.
Replace cleaning cover, install screws, and replace
insulation.
16.5.2 Wet cleaning (chemical cleaning)
For wet cleaning use a suitable cleaning agent depend-
ing on the degree of build-up of dirt (soot or scale).
Use the same procedure as described for cleaning with
brushes (
Î
Chapter 16.5.1, page 47).
28.
Cover control with foil to prevent entry of spray into
the control.
29.
Ventilate boiler room well during cleaning.
30.
Spray flue gas vents evenly with the cleaning agent.
31.
Replace and install the burner in reverse order of
removal and disassembly.
32.
Place the heating system in operation.
33.
Heat the boiler water to a temperature of at least
122°F.
34.
Take the boiler out of operation.
35.
Allow boiler to cool.
36.
Remove burner.
37.
Brush out flue gas passages.
38.
Clean combustion chamber and bottom insulation.
39.
Continue to ventilate boiler room well.
40.
Install burner.
41.
Reattach boiler jacket.
Fig. 48
Clean out the gas passages
1
Cleaning brush
2
Insulation
3
Foil
1
2
3
2
1
2
3
USER NOTE
Observe the directions for use of the
cleaning agent. In some case you may
need use a different procedure from that
described here.
Fig. 49
Wet cleaning boiler
