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9
9
SERVICE PROCEDURES
Continued
IGNITOR
1. Remove upper shell and fan guard (see page 8).
2. Remove fan (see page 13).
3. Remove 4 side cover screws with a 5/16" nut driver. Remove
side cover (see Figure 9 or 10, page 8).
4. Disconnect ignitor wires (black) from ignition control assem-
bly (see Figure 11). Pull the ignitor wires up through the hole
in the lower shell.
5. Disconnect fuel line hose and air line hose. Remove photocell
from photocell bracket (see Figure 11).
6. Remove combustion chamber. Stand combustion chamber on
end with nozzle adapter bracket on top (see Figure 12).
7. Remove ignitor screw with a 1/4" nut driver. Carefully remove
ignitor from nozzle adapter bracket.
Combustion
Chamber
Photocell
Bracket
Photocell
Assembly
Air Line
Hose
Fuel Line
Hose
Combustion
Chamber
Photocell
Bracket
Ignitor
Wires
Ignitor
Nozzle Adapter
Bracket
Ignition
Control
Assembly
Side Cover
Figure 11 - Disconnecting Ignitor Wires from Ignition Control
Assembly
Ignitor
Ignitor Screw/
Washer Assembly
Nozzle
Adapter
Bracket
Nozzle Adapter
Bracket Opening
Ignitor
Element
Figure 12 - Ignitor Replacement
CAUTION: Do not bend or strike ignitor element.
Handle with care.
8. Carefully remove replacement ignitor from styrofoam packing.
9. Carefully guide ignitor into opening in nozzle adapter bracket.
Do not strike ignitor element. Attach ignitor to nozzle adapter
bracket with screw using a 1/4" nut driver (see Figure 12).
Torque .90 to 1.69 N-m (8 to 15 in-lbs) Do not over torque.
10. Replace combustion chamber.
11. Route the ignitor wires back down through the hole in the lower
shell. Connect wires to the ignition control assembly.
12. Replace side cover (see Figure 9 or 10, page 8).
13. Connect and route fuel line hose and air line hose to burner
head. See Fuel and Air Line Replacement and Proper Rout-
ing, page 12.
14. Replace photocell in photocell bracket. Route wires as shown
in either Figure 17 or 18, page 11.
15. Replace fan (see page 13).
16. Replace fan guard and upper shell (see page 8).
SERVICE PROCEDURES