Desa BC40 - Manuel (Page 12)

www.desatech.com 111168-01A 12
Figure 21 - Removing Air and Fuel Line
Hoses (165T Model Only)
Fuel Line
Hose
Combustion
Chamber
Nozzle/
Adapter
Assembly
Air Line
Hose
Figure 19 - Removing Air and Fuel Line
Hoses, (40/55T/70T Models Only)
Fuel Line
Hose
Combustion
Chamber
Nozzle/
Adapter
Assembly
Air Line
Hose
Photocell
Bracket
Burner Strap
Figure 20 - Removing Air and Fuel Line
Hoses, (115T Model Only)
Photocell
Bracket
Burner Strap
Combustion
Chamber
Burner Strap
Photocell
Bracket
Fuel Line
Hose
Air Line Hose
Nozzle/
Adapter
Assembly
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.
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 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
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).
Nozzle
Assembly
Burner Strap
Figure 22 - Removing Nozzle Assembly,
All Models
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 hex-body into vise and lightly
tighten.