7. Check the distance between the ignition electrode and the ground
electrode.
Tab.68 L3
Boiler model
Distances and tolerances to be
observed for the ignition elec
trode and the ground electrode
(mm)
SIRIUS THREE FS 130
4.5 +/-0.5
SIRIUS THREE FS 150
4.5 +/-0.5
SIRIUS THREE FS 200
4.5 +/-0.5
SIRIUS THREE FS 250
4.5 +/-0.5
8. Check there is no damage to the insulation on the inside surface of
the burner. The surface must be clean and free of any damage.
Replace the insulation if it is damaged.
9. Remount the burner.
11.2.5 Cleaning the siphon
SIRIUS THREE FS 130 and SIRIUS THREE FS 150
1. Remove the burner.
2. Access the siphon.
3. Disconnect the pipe leading from the rainwater holding tank.
4. Disconnect the condensate discharge pipe.
5. Remove the screw retaining the siphon.
6. Remove the siphon by pulling it towards you.
7. Clean the bottom of the siphon with water.
8. Completely fill the siphon.
9. Refit the siphon and fit the screw to hold the siphon in place.
10. Remount the burner.
Danger
Fill the siphon to the top. If the siphon is empty, there is a danger
of intoxication by exhaust gases.
SIRIUS THREE FS 200 and SIRIUS THREE FS 250
1. Open the spring clip retaining the siphon.
2. Remove the siphon by pulling it towards you.
3. Clean the bottom of the siphon with water.
4. Completely fill the siphon.
5. Refit the siphon and reattach the spring clip to hold the siphon in
place.
Danger
Fill the siphon to the top. If the siphon is empty, there is a danger
of intoxication by exhaust gases.
Fig.165
MW
-3
0
0
0
2
1
6
-0
1
L3
Fig.166
MW
-4
0
0
0
2
7
1
-1
4
3
5
6
Fig.167
MW
-4
0
0
0
2
7
2
-2
2
1
11 Maintenance
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7702639 - v03 - 10072018