Desa H.S.I. Series owner manual Remove side cover screws using 5/16 nut-driver

Page 11

Fuel Filter

(90,000 BTU/Hr Model)

1.Remove side cover screws using 5/16" nut-driver.

2.Remove side cover.

3.Pull upper fuel line off fuel filter neck.

4.Carefully pry bushing, lower fuel line, and fuel filter out of fuel tank.

5.Wash fuel filter with clean fuel and replace in tank.

6.Attach upper fuel line to fuel filter neck.

7.Replace side cover.

Fuel Filter

(150,000 BTU/Hr Model)

1.Remove upper shell (see page 10).

2.Remove fan (see page 19).

3.Loosen flare nut using 3/4" open-end wrench. Push fuel tube down, away from burner head. Fuel filter is located inside of fuel tube.

4.Lift out fuel filter.

5.Wash fuel filter with clean fuel and replace in fuel tube.

6.Connect fuel tube to burner head. Attach flare nut until nut seats against fuel tube and fitting. Tighten 1/4 turn more using 3/4" open-end wrench (100-130 inch- pounds/11.3-14.7 n-m).

7.Replace fan (see page 19).

8.Replace fan guard and upper shell.

Fuel Filter, Bushing,

and Lower Fuel Line

Upper

Fuel Line

Side Cover

Figure 13 - Fuel Filter Removal, 90,000 BTU/Hr Model

Fuel Filter

Combustion

Chamber

 

Burner

Head

Fuel Tube

Flare Nut

Figure 14 - Fuel Filter Removal, 150,000 BTU/Hr Model

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Contents Portable Forced AIR Heaters Contents Carbon monoxide poisoning may lead to death Safety InformationProduct Identification Tools Needed Unpacking AssemblyFuels TheoryOperation To Start Heater Ventilation OperationTo Restart Heater Operation Storage Preventative Maintenance ScheduleTo Stop Heater How Often How To TROUBLE- ShootingFuel Filter Service ProceduresUpper Shell Removal Remove side cover screws using 5/16 nut-driver Spark Plug Removal, 30,000 BTU/Hr Model Spark PlugSpark Plug Removal, 70/90/150,000 BTU/Hr Models Air Output, Air Intake, and Lint Filters Pump Pressure AdjustmentRemoving Air and Fuel Line Hoses, 30,000 BTU/Hr Model NozzleRemoving Burner Head, 70/90,000 BTU/Hr Models Removing Burner Head, 150,000 BTU/Hr Model Rotor Location, 30/70,000 BTU/Hr Models Pump RotorFan SpecificationsWiring Diagram, 30,000 BTU/Hr EDI Model Wiring DiagramsWiring Diagram, 30,000 BTU/Hr EEI Model 30,000 BTU/Hr EDI/EEI Parts BreakdownKEY Part QTY Number Description EDI EEI Parts List70,000 BTU/Hr EDI/EEI Burner Head AssemblyFHPF3-2C 90,000 BTU/Hr EDI/EEI Parts List 150,000 BTU/Hr EDI/EEI Illustrated Parts BreakdownWLM-4C 150,000 BTU/Hr EDI/EEIWheels and Handles for 90,000 Accessories Certificate of General Equipment Limited 90 DAY Warranty Warranty and Repair Service
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