Buderus Logamax Plus GB142-24 Installation Instructions Manual page 50

12 Maintenance
 Loosen both sets of retaining clips (fig. 44, pos. 4 and 5)
of the burner cover and remove the burner cover with the
fan unit and the gas burner fitting (fig. 45, pos. 1).
 Remove the gas/air distributor plate (fig. 45, pos. 2), the
orifice plate (GB142-24, GB142-30 and GB142-60 only,
fig. 45, pos. 3) and the burner (fig. 45, pos. 4). Note that
the orifice plate of the GB142-60 has a different shape.
 Clean the gas/air distributor plate, the orifice plate
(GB142-24, GB142-30 and GB142-60 only) and the
burner using compressed air.
 Remove the baffle plate and clean it using compressed
air (fig. 46).
 Flush the heat exchanger with water.
 Re-assemble all parts in reverse order of disassembly.
NOTICE
It is important to inspect and properly replace
the rubber gaskets.
 Switch on the heating system using the main switch.
 Press the "Chimney Sweep"
point is displayed. Leave the boiler on for approx.
10 minutes.
50 Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
d
button until the decimal
1
Fig. 45 Cleaning the burner cover, gas/air distributor plate,
orifice plate and burner
Fig. 46 Baffle plate
Fig. 47 Cleaning the heat exchanger
2
3
4