Dura Heat DFA80T User Manual page 12

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NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
E.) NOZZLE
REMOVE DIRT IN NOZZLE AS NEEDED (SEE PAGE 16).
(For DFA50/80T/135C/180CV Models Only)
- Remove upper shell (See page 10).
- Remove fan blade (See page 10).
- Remove fuel and air line hoses from nozzle adaptor.
- Remove ignitor wire from spark plug.
- Remove spark plug from nozzle adaptor using medium
phillips screwdriver.
- Turn nozzle adaptor 1/9 turn(40°) to counter clock wise
and pull toward motor to remove. (See Figure 14)
- Place plastic hex-body into vise and lightly tighten.
- Carefully remove nozzle from nozzle adaptor using 5/8"
socket wrench.
- Blow compressed air through face of nozzle.
(this will remove any dirt in nozzle)
- Reinstall nozzle into nozzle adaptor until nozzle seats.
Tighten 1/3 turn more using 5/8" socket wrench.
(40~45 inch-pounds)
- Reinstall nozzle adaptor to burner head.
- Reinstall spark plug to nozzle adaptor.
- Attach ignitor wire to spark plug.
- Attach fuel and air line hoses to nozzle adaptor.
- Reinstall fan blade and upper shell.
(For DFA220CV Model Only)
- Remove upper shell (See page 10).
- Remove fan (See page 10).
- Remove fuel and air line hoses from nozzle adaptor.
- Remove ignitor wire from spark plug.
- Remove spark plug from nozzle adaptor using medium
phillips screwdriver.
- Turn nozzle adaptor 1/8 turn (45°) to counter clock wise
and pull toward motor to remove. (See Figure 15)
- Place plastic hex-body into vise and lightly tighten.
- Carefully remove nozzle from nozzle adaptor using 5/8"
socket wrench.
- Blow compressed air through face of nozzle.
(this will remove any dirt in nozzle)
- Reinstall nozzle into nozzle adaptor until nozzle seats
Tighten 1/3 turn more using 5/8" socket wrench
(40~45 inch-pounds)
- Reinstall nozzle adaptor to burner bracket
- Reinstall spark plug to nozzle adaptor.
- Attach ignitor wire to spark plug.
- Attach fuel and air line hoses to nozzle adaptor.
- Reinstall fan blade and upper shell.
- Reinstall upper shell.
Fuel Line
Air Line
Nozzle Face
Nozzle
Nozzle Adaptor
Figure 14. Nozzle Replacement
Figure 15. Nozzle Replacement
11
Combustion Chamber
Screw
Ignitor Wire
Spark Plug
Nozzle Adaptor
Burner Head
Nozzle Adaptor