Compact Condens : A1003043 - 664Y7200 • A
en
32
EN
FR
NL
ES
IT
DE
PL
RU
MAINTENANCE
REMOVAL, CHECK AND INSTALLATION OF THE BURNER
Set-up conditions
•
Boiler shut down
•
External power supply isolated
•
Gas supply closed
•
Front and side panel(s) removed (refer to “Removal and Installation of the Front and Side Panels” on
page 23).
Removal procedure
1.
Disconnect all plugs and tubes from the fan assembly (
1
), the gas valve (4) and the electrodes (
6
),
as required.
2.
Release the gas connection (
5
).
3.
Release 4 attaching bolts (13) from the fan assembly flange (14). Discard the gasket (15). Retain the
bolts for re-installation.
4.
Release 4 screws (
2
) from the air inlet flange (
3
) and disconnect the air inlet. Retain the screws and
washers for re-installation.
5.
Using a socket wrench, release the burner hood (
8
) attaching nuts (
7
) and retain them for re-instal-
lation.
6.
Pull the burner assembly out of the exchanger (
11
).
7.
If required, clean the exchanger, see “Cleaning the Exchanger” on page 33.
8.
If not removed previously, remove, check and reinstall the electrodes, refer to “Removal, Check and
Installation of the Burner Electrodes” on page 31.
Installation procedure
1.
Check the burner hood insulation block (
9
) condition. Replace if required.
2.
Reinstall the burner assembly into the exchanger (
11
).
3.
Install the attaching nuts (
7
) of the burner hood (
8
) and fasten them in a crosswise pattern
4.
Install the fan assembly on the fan assembly flange (
14
), with a new gasket (
15
). Tighten 4 attaching
bolts (
13
) retained at removal.
5.
Install the air inlet on the air inlet flange (
3
) using 4 screws and washers (
2
) retained at removal.
6.
Reconnect the gas connection (
5
).
7.
Reconnect all plugs and tubes disconnected at removal, to the electrodes (
6
), the gas valve (
4
) and
the fan assembly (
1
), as required.
Follow-on tasks
None
Key
1.
Fan assembly
2.
Air inlet attaching screws and washers
3.
Air inlet flange
4.
Gas valve
5.
Gas connection
6.
Electrodes
7.
Burner attaching nuts
8.
Burner hood
9.
Burner hood insulation block
10. Burner tube
11. Heat exchanger
12. Flame sight glass
13. Fan assembly attaching bolts
14. Fan assembly flange
15. Fan assembly gasket
2
3
4
5
1
6
7
8
9
10
11
13
12
14 15
