SERVICE PROCEDURES
Continued
7.Remove ignitor screw with a 1/4" nut driver. Carefully remove ignitor from nozzle adapter bracket.
CAUTION: Do not bend or strike ignitor element. Handle with care.
Combustion
Chamber
Burner Strap
Photocell
Bracket
Air Line Hose
Nozzle/
Adapter
Assembly
Fuel Line
Hose
8. | Carefully remove replacement ignitor from |
| styrofoam packing. |
9. | Carefully guide ignitor into opening in nozzle |
Figure 20 - Removing Air and Fuel Line
Hoses, (115T Model Only)
| adapter bracket. Do not strike ignitor element. |
| Attach ignitor to nozzle adapter bracket with |
| screw using a 1/4" nut driver (see Figure 18, page |
| 11). Torque 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 (see Figure 17, |
| page 11). |
12. | Replace side cover (see Figures 15 and 16, |
| page 11). |
13. | Connect and route fuel line hose and air line |
Combustion
Chamber
Burner Strap
Photocell
Bracket
Air Line
Hose
Nozzle/
Adapter
Assembly
Fuel Line
Hose
| hose to nozzle adapter assembly. See Fuel and |
| Air Line Replacement and Proper Routing, |
| page 13. |
14. | Replace photocell in photocell bracket. Route |
| wires as shown in Figure 19, 20, or 21. |
15. | Replace fan (see Fan, page 9). |
16. | Replace fan guard and upper shell (see Upper |
| Shell Removal, page 9). |
Combustion |
|
Chamber | Nozzle/ |
| |
| Adapter |
Burner Strap | Assembly |
Photocell
Bracket
Air Line | Fuel Line |
Hose | Hose |
Figure 19 - Removing Air and Fuel Line
Hoses, (40/55T/70T Models Only)
Figure 21 - Removing Air and Fuel Line
Hoses (165T Model Only)
NOZZLE ASSEMBLY
1.Remove upper shell (see Upper Shell Re- moval, page 9).
2.Remove fan (see Fan, page 9).
3.Remove fuel and air line hoses from nozzle assembly (see Figure 19, 20, or 21).
4.Turn nozzle assembly 1/4 turn to left and pull toward motor to remove (see Figure 22).
5.Place plastic
Burner Strap
Nozzle
Assembly
Figure 22 - Removing Nozzle Assembly, All Models
12 | www.desatech.com |
