Desa PORTABLE FORCED AIR HEATERS - Manuals

Page 2 - CONTENTS; SECTION; Carbon Monoxide Poisoning:; WARNINGS; SAFETY; DANGER; Carbon monoxide poisoning may lead to death!

2 102437 Safety Information ......................................................................... 2Product Identification .................................................................... 4Unpacking ..................................................................................... 4Theory ...

Page 3 - Continued

3 102437 SAFETY INFORMATION Continued WARNINGS (Continued) • Use only kerosene or No. 1 fuel oil to avoid risk of fire or explosion. Never use gasoline, naphtha, paint thinners, alcohol, or other highly flammable fuels. • Fueling a) Personnel involved with fueling shall be qualified and thoroughly f...

Page 4 - The Ignition System:; PRODUCT; UNPACKING

4 102437 THEORY OF OPERATION The Fuel System: The air pump forces air through the air line. The air is then pushed through the burner head nozzle. This air causes fuel to lift from the tank.A fine mist of fuel is sprayed into the combustion chamber. The Air System: The motor turns the fan. The fan p...

Page 5 - FUELS; WARNING; VENTILATION; WARNING; To Start Heater

5 102437 WARNING ! Use only kerosene or No. 1 fuel oil to avoid risk of fire orexplosion. Never use gasoline, naphtha, paint thinners,alcohol, or other highly flammable fuels. Do not use heavy fuels such as No. 2 fuel oil or No. 2 Diesel. Using heavy fuelswill result in: • clogged fuel filter and no...

Page 6 - OPERATION; Item; OR SHIPPING; To Stop Heater; PREVENTATIVE

6 102437 OPERATION Continued Item How Often How To Fuel tank Flush every 150-200 hours See Storing, Transporting, or of operation or as needed. Shipping, above. Air output and Replace every 500 hours of See Air Output, Air Intake, lint filters operation or once a year. and Lint Filters, page 9. Air ...

Page 7 - SHOOTING; OBSERVED FAULT

7 102437 Fuel filter Clean twice a heating season See Fuel Filter, page 10. or replace as needed. Spark plug Clean and regap every 600 See Spark Plug, pages 10 hours operation or replace and 11. as needed. Fan blades Clean each season or as needed. See Fan, page 9. Motor Not required/permanently lub...

Page 8 - Upper Shell Removal; Fan

8 102437 SERVICE PROCEDURES WARNING ! Upper Shell Removal 1. Remove screws along each side of heater using 5/16" nut-driver. Thesescrews attach upper and lowershells together. 2. Lift upper shell off.3. Remove fan guard. Never service heater while it is plugged in, operating, orhot. Severe burns...

Page 9 - Fuel Filter; Spark Plug

9 102437 Pump PressureAdjustment 1. Remove pressure gauge plug from filter end cover. 2. Install accessory pressure gauge (part number HA1180). 3. Start heater (see Operation, page 6). Allow motor to reach full speed. 4. Adjust pressure. Turn relief valve to right to increase pressure. Turnrelief va...

Page 10 - Nozzle

10 102437 11. Tighten spark plug with spark plug mounting nut. 12. Release hex-body of spark plug from vise. 13. Replace burner strap onto combus- tion chamber. 14. Attach spark plug wire to spark plug. 15. Attach fuel and air line hoses to nozzle assembly. 16. Replace fan (see page 9).17. Replace f...

Page 11 - Pump Rotor; WIRING

11 102437 50 ROTOR PFA/P 056 Pump Rotor (Procedure if rotor is binding) 1. Remove upper shell (see page 9). 2. Remove filter end cover screws using 5/16" nut-driver. 3. Remove filter end cover and air filters. 4. Remove pump plate screws using 5/16" nut-driver. 5. Remove pump plate.6. Remove...

Page 12 - Parts Under Warranty; REPLACEMENT; SPECIFICATIONS

12 102437 TECHNICAL SERVICE You may have further questions about installation, operation, or troubleshooting.If so, contact DESA International’s Technical Service Department at 1-800-323-5190. Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced unde...

Page 13 - ACCESSORIES

13 102437 MAINTENANCE KITS Btu/Hr 35,000 50,000 55,000 Flame-Out Control Part No. HA3003 HA3003 HA3003 Spark Plug Part No. HA3013 HA3013 HA3013 Filter Kit Part No. HA3014 HA3014 HA3014 Nozzle Kit Part No. HA3006 HA3021 HA3021 Rotor/Air Pump Kit Part No. HA3004 HA3005 HA3005 Photocell Part No. HA3019...

Page 15 - PARTS LIST

15 102437 20 101205-01 Motor Bracket 1 21 M30865-02 Bushing 2 22 M11271-8 Clip Nut 6 23 M50104-02 Bushing 1 24 M11084-26 Screw, #10-16 x 3/8" 6 25 M10908-14 Screw, #8-32 x 3/8" 1 26 098511-18 Lower Shell (white) 1 098511-12 Lower Shell (yellow) 1 098511-81 Lower Shell (black) 1 27 M29652-04 ...

Page 16 - WARRANTY AND REPAIR SERVICE; WARRANTY SERVICE; LIMITED WARRANTY

WARRANTY AND REPAIR SERVICE WARRANTY SERVICE Should your heater require service, return it to yournearest authorized service center. Proof of purchase mustbe presented with the heater. The heater will be inspected.A defect may be caused by faulty materials or workman-ship. If so, DESA International ...