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KEROSENE HIGH PRESSURE PORTABLE FORCED AIR
HEATERS OWNER’S MANUAL
TABLE OF CONTENTS
Safety Information ............................................... 2 Troubleshooting ................................................... 8
Product Identification ........................................... 3 Service Procedures ............................................11
Unpacking ........................................................... 3 Maintenance Kits .............................................. 15
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d) During fueling, all fuel lines and fuel-line SAFETY INFORMATION connections shall be inspected for leaks. Any IMPORTANT: Read this owner’s leaks shall be repaired prior to returning the heater to service. manual carefully and completely e) At no time shall more than one dayʼs supply before trying to assemble, of heater fuel be stored inside a building in operate or service this heater. the vicinity of the heater. Bulk fuel storage Improper use of this heater can shall be outside th
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SAFETY INFORMATION PRODUCT Continued IDENTIFICATION 13. Keep children and animals away from Hot Air heater. Outlet Upper Shell 14. Never start heater when combustion chamber is hot or if fuel has accumulated in combustion Lower chamber. Shell 15. Unplug heater when not in use. 16. This heater has a built-in thermostat. Plugged- in heater may start at anytime. 17. Never use heater in living or sleeping areas. 18. Never block air inlet (rear) or air outlet (front) Fuel Cap of heater. Fuel Ta
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THEORY OF OPERATION The Fuel System: The motor turns the fuel pump. The fuel pump pulls fuel from the fuel tank. The fuel pump pushes fuel through a filter and a solenoid valve and out the burner head nozzle. A fine mist of fuel is sprayed into the combustion chamber. The Air System: The motor turns the fan. The fan pushes air into and around the combustion chamber. This air is heated and provides a stream of clean, hot air. The Ignition System: The electronic ignitor sends voltage to the spark
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er valve of pump to allow air to escape. Quickly OPERATION close valve once fuel is seen. Wipe up any excess fuel. If equipped with canister fuel filter, remove the WARNING: Review and canister bottom and fill with fuel. Reassemble filter. understand the warnings in Wipe up any excess fuel. You may also have to do the Safety Information section, this after taking heater out of storage. page 2. They are needed to safely operate this heater. TO START HEATER 1. Follow all ventilation and saf
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ENGINE OFF STORING, OPERATION WITH TRANSPORTING OF PORTABLE GENERATOR SHIPPING WARNING: Before operating Note: If shipping transport companies require fuel tanks to be empty. heater or any appliance from a 1. Drain all fuel from fuel lines and pump/filter portable generator, verify that (see Fuel Filters, page 14). generator has been properly 2. Clean and flush fuel filter in fuel pump if connected to earth ground. Im- equipped (see Fuel Filters, page 14). proper grounding or failure to 3
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PREVENTATIVE MAINTENANCE SCHEDULE WARNING: Never service heater while it is plugged in, operating or hot. Severe burns and electrical shock can occur. Item How Often How To Fuel tank Flush every 150-200 hours of operation See Storing, Transporting or or as needed Shipping, page 6 Filler neck screen Check for particles in fuel when filling Lift out of fuel tank and rinse with fuel tank. Clean when dirty clean kerosene Fuel filter assembly (Fuel Clean twice a heating season or replace See Fuel F
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TROUBLESHOOTING WARNING: Never service heater while it is plugged in, operating or hot. Severe burns and electrical shock can occur. Only a qualified service person should service and repair heater. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Motor does not start when heater 1. No power or low voltage at 1. A) Check condition of power is plugged in and thermostat set- heater due to: cord or extension cord. Repair ting is higher than surrounding A) Damaged power cord or or replace if damaged air
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TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Heater will not ignite, but motor 1. A) Fuel tank empty 1. A) Add fuel to tank runs for a short period of time. B) Water in fuel B) Check fuel tank for bubbles C) Wrong fuel of water in bottom. If found, remove fuel (see Storing, Transporting or Shipping, page 6). Clean tank and fuel filters (see Fuel Filters, page 14). Fill with clean fuel C) Remove wrong fuel (see Storing, Transporting or Ship- ping, page 6). Clean tank a
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TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Heater ignites, but flame-out 1. Wrong pump pressure 1. Adjust pump pressure (see control shuts off heater after a Pump Pressure Adjustment short period of time sections, page 12) 2. Dirty fuel filters 2. Clean fuel filters (see Fuel Filters, page 14) 3. Dirt in nozzle 3. Replace nozzle (see Nozzle, page 11) 4. Dirty photocell lens 4. Clean photocell lens with clean cotton swab 5. Open or damaged photocell 5. Replace photocell
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SPARK PLUG SERVICE PROCEDURES 1. Remove upper shell (see Upper Shell Removal). 2. Remove spark plug wire from spark plug (see WARNING: Never service Figure 8). heater while it is plugged in, op- 3. Remove spark plug from burner head using erating or hot. Severe burns and 13/16" open-end wrench (see Figure 8). electrical shock can occur. Only 4. Replace spark plug if damaged or heavily a qualified service person should coated with carbon. service and repair heater. 5. Clean and regap spark
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PUMP PRESSURE ADJUSTMENT SERVICE PROCEDURES FOR HEATERS WITH FUEL FILTER Continued INTERNAL TO PUMP 8. Inspect nozzle for damage. If damaged or 1. Remove pressure gauge plug from fuel pump clogged, replace nozzle. port marked “GAUGE.” 9. Make sure plug is in place on burner head. 2. Install accessory pressure gauge (part num- 10. Replace nozzle into burner head and tighten ber 110380-01) to fuel pump port marked firmly (175-200 inch-pounds). “GAUGE” (see Figure 12). Do not use bleeder 11.
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FUEL LINES SERVICE PROCEDURES Continued (Procedure for Tightening Fuel Lines) 1. Remove upper shell (see Upper Shell Re- PUMP moval, page 11). (Procedure if Pump is Binding) 2. Use an adjustable wrench as a backup on 1. Remove upper shell (see Upper Shell Re- fittings. moval, page 11). 3. Use 7/16" wrench and tighten fuel lines at 2. Loosen hex screw on flange clamp at rear of solenoid valve, pump and fuel filter canister motor with 5/16" nut-driver (see Figure 13). (if equipped) (see Figures 1
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SERVICE PROCEDURES Fuel Pump (Filter Continued Under Cover) FUEL FILTERS A. Tank Fuel Filter 1. Disconnect fuel lines from pump and fuel filter canister (if equipped) with 7/16" wrench (see Fuel Figure 17 or 18). Lines 2. Carefully pry fuel filter loose from fuel tank with flat end of screwdriver. Fuel 3. Inspect fuel filter for water or dirt. Filter 4. Rinse fuel filter and fuel lines with clean kerosene. Figure 17 - Removing Tank Fuel Filter 5. Replace fuel filter into fuel tank. 6. Connec
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REPLACEMENT PARTS MAINTENANCE KITS Kit Part Number Note: Use only original replacement parts. This will protect your warranty coverage for parts Flame-Out Control HA3003 replaced under warranty. Spark Plug HA3012 PARTS UNDER WARRANTY TECHNICAL SERVICE Contact authorized dealers of this product. If they You may have further questions about installation, canʼt supply original replacement part(s), call operation or troubleshooting. If so, contact DESA DESA Heating Productsʼ Technical Servic
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ILLUSTRATED PARTS BREAKDOWN MODELS B350D, SB350D AND R350A 2 1 2 3 4 5 21 9 2 6 7 8 19 10 20 14 4 21 13 22 11 12 15 25 13 16 23 17 26 30 18 28 31 24 27 29 20 41 32 34 2 39 33 34 35 4 2 40 36 38 37 37 16 www.desatech.com 110098-01G
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PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Repair Service on the back page of this manual. MODELS B350D, SB350D AND R350A KEY NO. PART NO. DESCRIPTION QTY. 1 108436-02 Upper shell model B350D/SB350D (Yellow) 1 108436-01 Upper shell model R350A (White) 1 2 M11084-27 Screw, #10-16 x 1/2" 15 3 M50542-01 Combustion chamber & shield 1 4 M30865-02 Bushing 7 5 M50086 Air deflector 5 6 ** Burner head assembly 1 7
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ILLUSTRATED PARTS BREAKDOWN MODELS B600D, SB600D AND R600A 1 2 2 3 4 5 9 13 2 6 8 45 7 15 10 46 14 16 4 13 12 1 1 17 18 19 24 2 21 23 4 20 22 28 25 26 31 27 32 33 34 30 25 29 47 16 35 37 2 38 36 15 15 39 41 40 42 44 43 2 43 18 www.desatech.com 110098-01G
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PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Repair Service on the back page of this manual. MODELS B600D, SB600D AND R600A KEY NO. PART NO. DESCRIPTION QTY. 1 108396-02 Upper shell model B600D/SB600D (Yellow) 1 108396-01 Upper shell model R600A (White) 1 2 M11084-27 Screw, #10-16 x 1/2" 28 3 * Combustion chamber & shield 1 4 M30865-02 Bushing 5 5 M50157 Air deflector 5 6 ** Burner head assembly 1 7
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ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST BURNER HEAD ASSEMBLY 350,000 AND 600,000 BTU/HR 3 4 1 5 6 2 7 8 9 KEY NO. PART NO. DESCRIPTION QTY. 1 M10908-2 Screw, #6-32 x 3/8" (350,000 Btu/Hr Only) 2 2 103154-05 Photocell Bracket (350,000 Btu/Hr Only) 1 3 HA3012 Spark Plug 1 4 M50112 Nozzle (350,000 Btu/Hr) 1 M30765 Nozzle (600,000 Btu/Hr) 1 5 M51170-01 Plug 1 6 M50924-02 Burner Head Body 1 7 69246 Straight Nipple 1 8 M50077 Solenoid Valve 1 9 M50297 Compression Elbow 1 20 www.desate
