9
Inspection and maintenance
Logano plus GB402 - Subject to technical modifications!
44
9.6
Cleaning the burner and heat exchanger
Clean the boiler wet or dry.
Long and short cleaning blades are available as
accessories for dry cleaning. Cleaning equipment is
available as an accessory for wet cleaning.
B
Shut down the heating system (
Æ
Chapter 8).
B
Close the main gas shut-off valve.
B
Allow the boiler to cool down.
B
Remove siphon [2] from the outlet of condensate
tray [1] and position a bucket underneath the tray.
Fig. 43 Removing the siphon
1
Condensate tray outlet
2
Siphon
9.6.1
Removing and cleaning burner
B
Undo toggle clip [1] at the top of the ventilation air
hose.
B
Pull off ventilation air hose [2] together with the
connector from ventilation air collector [3].
Fig. 44 Undoing the ventilation air hose
1
Toggle clip
2
Ventilation air hose
3
Ventilation air collector
B
Undo the 4 screws from gas valve flange [1] and undo
the gas connection.
Fig. 45 Undoing the gas connection
1
Screws
