12.0 CHANGING COMPONENTS
12.5Injectors (Fig. 54)
1.Remove the burner as described in Section 12.4.
2.Undo the screws securing the injector manifold to the inlet elbow and remove the manifold.
3.Unscrew and replace injectors as required and examine the sealing gasket, replacing as necessary. Reassemble in reverse order.
12.6Electrodes (Fig. 54)
Injector
Inlet Elbow
InjectorManifold
Fig. 54
Gasket
1.Remove the four screws securing the combustion box door and remove the door.
2.Draw the burner out of the combustion box, pulling the electrode grommets from the slots in the combustion box lower panel.
3.Disconnect the lead and grommet from the electrode being replaced. Undo the securing screw and withdraw the electrode to the burner.
4.Reassemble in reverse order.
12.7Insulation (Fig. 55)
1.Remove the four screws securing the combustion box door and remove the door.
2.Slide the side insulation pieces carefully out of their carriers.
3.To replace the rear insulation piece it is necessary to remove the heat exchanger as described in Section 12.3 and slide out the side pieces.
4.The combustion box door insulation piece can be replaced by carefully bending up the two retaining tabs.
5.Replace all insulation pieces and reassemble in reverse order.
13.8
Electrodes 
Electrode
Grommets
Electrode
Leads
Side Insulation
Combustion
Box Door
Fig. 55
Burner
Rear Insulation
Side Insulation
Front Insulation
Publication No. 5111811 | 31 |
