Essential recommendations for safety
•
If the system is fitted with an external hot water tank, isolate the DHW circuit before
draining the heating (primary) circuit.
•
Water flowing out of the drain valve may be extremely hot and could cause severe
scalding. Keep people away from the hot water discharge.
Set-up conditions
•
Boiler switched off using the ON/OFF master switch
•
DHW circuit (if any) isolated
•
External power supply isolated
•
Gas supply closed
Heating circuit draining procedure
1.
Close the isolating valves
(
1
).
2.
Connect the drain valve (
2
) to the sewer with a hose.
3.
Open the drain valve (
2
) to empty the heating circuit of the boiler.
4.
Close the drain valve (
2
) once the heating circuit of the boiler is empty.
Follow-on task
1.
None
DRAINING THE HEATING CIRCUIT OF THE BOILER
1
1
2
Compact Condens : A1003043 - 664Y7200 • A
EN
FR
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en
31
MAINTENANCE
REMOVAL, CHECK AND INSTALLATION OF THE BURNER ELECTRODES
Set-up conditions
•
Boiler shut down
•
External power supply isolated
•
Gas supply closed
•
Front panel open, refer to “Removal and Installation of the Front and Side Panels” on page 23.
Removal procedure
1.
Disconnect all the cables from the electrodes.
2.
Remove two mounting screws (
1
) and retain them for re-installation.
3.
Remove the 2 electrodes (
2
) and their gasket (
3
).
4.
Check the correct alignment of the electrode ends and that the gap corresponds to the value indi-
cated on the figure below.
5.
Replace the electrodes if required.
Installation procedure
1.
Install a new gasket.
2.
Install both electrodes (
2
) using their two retained screws (
1
).
Follow-on tasks
1.
Reconnect all the cables to the electrodes.
Essential recommendations for the correct operation of the appliance
•
Remove the electrodes to control them in case of ignition problems.
1
1
2
2
3
3
3,5± 0,5 mm
