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Removing the Side Cover
Ignition Electrode Block
2
1. Remove the M6 screw (one per panel) on the top rail
and bottom support bracket. Then lift up and remove the
panel.
2. Reinstall the side cover when finished in reverse order.
Note: Install side cover prior to installing the front covers.
Refer to the Installation and Service
Instructions applicable to this boiler.
1. Disconnect the ignition cables from the ignition electrodes.
2. Remove the two M6 (5 mm hex) screws and washers
from the ignition electrode block and set aside.
3. Remove the ignition electrode block from the burner door.
4. Remove the ignition electrode block gasket from the
burner door.
5. Remove the four M12 (19 mm or c in. hex)
burner door bolts and washers and set aside.
Note: To access the burner door, disconnect gas line
and plugs 40/156, 53 and 40 from the burner
control bracket and plugs 90 and 41 from the
burner control.
6. Reinstall the new ignition electrode block and gasket.
7. Open the burner door and check dimensions between
electrodes as well as electrode and burner as shown.
Carefully adjust if necessary.
8. Reinstall in reverse order.
9. Torque the M12 (19 mm hex socket cap screws)
ignition electrode 13 lb.ft (18 Nm).
10.Torque the M6 (5 mm hex) burner door bolts to
35 lb.in (4 Nm).
IMPORTANT
If adjustment to the electrode is necessary, be careful not
to damage the ceramic sleeve of the electrode.
WARNING
Leak test the reconnected gas line.
Electrode Block Installation
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