Instruction/ maintenance manual of the product PORTABLE FORCED AIR HEATERS Desa
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ARL LOGO G 004 ® IMPORTANT Read and understand this manual before assembling, starting, or servicing heater. Improper use of heater can cause serious injury.
2 102437 Safety Information ......................................................................... 2 Product Identification .................................................................... 4 Unpacking ..........................................
3 102437 SAFETY INFORMA TION Continued W ARNINGS (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.
4 102437 THEOR Y OF OPERA TION 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.
5 102437 W ARNING ! 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.
6 102437 OPERA TION 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.
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.
8 102437 SER VICE PROCEDURES W ARNING ! Upper Shell Removal 1. Remove screws along each side of heater using 5/16" nut-driver. These screws attach upper and lower shells together. 2. Lift upper shell off. 3. Remove fan guard. Never service heater while it is plugged in, operating, or hot.
9 102437 Pump Pressure Adjustment 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.
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.
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.
12 102437 TECHNICAL SER VICE 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 under warranty.
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.
14 102437 ILLUSTRA TED P ARTS BREAKDOWN Motor and Pump Assembly 12-11 12-18 12-17 12-16 12-15 12-14 12-13 12-12 12-10 12-1 12-2 12-3 12-4 12-5 12-6 12-7 12-8 12-9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1.
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 098511-1.
W ARRANTY AND REP AIR SER VICE WARRANTY SERVICE Should your heater require service, return it to your nearest authorized service center. Proof of purchase must be presented with the heater. The heater will be inspected. A defect may be caused by faulty materials or workman- ship.
An important point after buying a device Desa PORTABLE FORCED AIR HEATERS (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Desa PORTABLE FORCED AIR HEATERS yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Desa PORTABLE FORCED AIR HEATERS - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa PORTABLE FORCED AIR HEATERS you will learn all the available features of the product, as well as information on its operation. The information that you get Desa PORTABLE FORCED AIR HEATERS will certainly help you make a decision on the purchase.
If you already are a holder of Desa PORTABLE FORCED AIR HEATERS, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Desa PORTABLE FORCED AIR HEATERS.
However, one of the most important roles played by the user manual is to help in solving problems with Desa PORTABLE FORCED AIR HEATERS. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa PORTABLE FORCED AIR HEATERS along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center