Owner's Manual

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OWNER’S MANUAL
SERVICE
PROCEDURES
Continued
Figure 12 - Removing Air and Fuel Line
Hoses (115,000 Btu/Hr Models Only)
Nozzle/
Adapter
Assembly
Combustion
Chamber
Figure 14 - Removing Nozzle/Adapter
Assembly
Nozzle
Face
Nozzle
Nozzle
Seal
Nozzle
Adapter
Air Line
Fitting
Fuel Line
Fitting
Figure 15 - Nozzle and Nozzle Adapter
NOZZLE ASSEMBLY
1. Remove upper shell (see page 7).
2. Remove fan (see page 7).
3. Remove fuel and air line hoses from
nozzle assembly (see Figure 12 or 13).
4. Turn nozzle assembly 1/4 turn to left
and pull toward motor to remove (see
Figure 14).
5. Place plastic hex-body into vise and
lightly tighten.
6. Carefully remove nozzle from the
nozzle adapter using 5/8" socket
wrench (see Figure 15).
7. Blow compressed air through face of
nozzle. This will free any dirt in nozzle area.
8. Inspect nozzle seal for damage.
9. Replace nozzle into nozzle adapter until
nozzle seats. Tighten 1/3 turn more
using 5/8" socket wrench (40-45 inch-
pounds). See Figure 15.
10. Attach nozzle assembly to burner strap.
11. Attach fuel and airline hoses to nozzle
assembly. See Fuel and Air Line
Replacement and Proper Routing.
12. Replace fan (see page 7).
13. Replace fan guard and upper shell (see
page 7)
Continued
Fuel Line
Hose
Nozzle/
Adapter
Assembly
Combustion
Chamber
Figure 13 - Removing Air and Fuel Line
Hoses (155,000 Btu/Hr Models Only)
Burner
Strap
Photocell
Bracket
Air Line
Hose
FUEL AND AIR LINE
REPLACEMENT AND
PROPER ROUTING
1. Remove upper shell (see page 7).
2. Remove side cover screws using 5/16"
nut driver.
3. Remove side cover.
4. Inspect fuel and air line hoses for cracks
and/or holes. If fuel line hose is
damaged, disconnect from nozzle
adapter (see Figure 12 or 13) and from
fuel filter (see page 8). If air line hose
is damaged, disconnect from nozzle
adapter (see Figure 12 or 13) and from
barb fitting on pump end cover (see
Figure 16).
5. Install new air and/or fuel line. Attach
one end of air line hose to barb fitting
on pump end cover (see Figure 16) and
the other end to nozzle adapter (see
Figure 12 or 13). Attach one end of fuel
line hose to fuel filter (see page 8) and
the other end to nozzle adapter (see
Figure 12 or 13).
For 115,000 Btu heater, route air and
fuel line approximately as shown in
Figure 12.
Note: Hoses are not to be touching
photocell bracket.
For 155, 000 Btu heater, route air and
fuel line approximately as shown in
Figure 13.
Note: Hoses are not to be touching
photocell bracket.
6. Replace side cover.
7. Replace upper shell and fan guard (see
page 7).
Figure 16 - Air Hose to Barb Fitting
Barb Fitting
Air Hose
Pump End Cover
Fuel Line
Hose
Nozzle/
Adapter
Assembly
Combustion
Chamber
Air Line
Hose
Burner
Strap
Photocell
Bracket