PORTABLE FORCED AIR HEATER (WITH BUILT-IN THERMOSTAT) OWNER’S MANUAL 200,000 Btu/Hr B200T IMPORTANT: Read and understand this manual before assembling, starting, or servicing heater. Improper use of heater can cause serious injury. Keep this manual for future reference.
B200T 200,000 BTU/HR PORTABLE FORCED AIR HEATER SAFETY INFORMATION WARNINGS IMPORTANT: Read this Owner’s Manual carefully and completely before trying to assemble, operate, or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.
OWNER’S MANUAL PRODUCT IDENTIFICATION UNPACKING 1. Hot Air Outlet 2. 3. Upper Shell Lower Shell Fan Guard Fuel Cap Fuel Tank Side Cover Flame-out Control Reset Button Power Cord Thermostat Knob Figure 1 - 200,000 Btu/Hr Model 104473 Remove all packing items applied to heater for shipment. Remove all items from carton. Check items for shipping damage. If heater is damaged, promptly inform dealer where you bought heater.
B200T 200,000 BTU/HR PORTABLE FORCED AIR HEATER ASSEMBLY 2. This model is furnished with wheels and handles. Wheels, handles, and the mounting hardware are found in the shipping carton. 3. Tools Needed • Medium Phillips Screwdriver • 3/8" Open or Adjustable Wrench • Hammer 1. Slide axle through wheel support frame. Install wheels on axle. IMPORTANT: When installing wheels, point extended hub of wheels toward wheel support frame (see Figure 2). 4. 5. Place cap nuts on axle ends.
OWNER’S MANUAL THEORY OF OPERATION OPERATION WARNING: Review and understand the warnings in the Safety Information section, page 2. They are needed to safely operate this heater. Follow all local codes when using this heater. 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.
B200T 200,000 BTU/HR PORTABLE FORCED AIR HEATER STORING, TRANSPORTING, OR SHIPPING PREVENTATIVE MAINTENANCE SCHEDULE Note: If shipping, transport companies require fuel tanks to be empty. 1. Drain fuel tank. Note: This model has a drain plug on underside of fuel tank. Remove drain plug to drain all fuel. Be sure all fuel is removed. 2. Replace drain plug. 3. If any debris is noted in old fuel, add 1 or 2 quarts of clean kerosene to tank, stir, and drain again.
OWNER’S MANUAL TROUBLESHOOTING WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. OBSERVED FAULT POSSIBLE CAUSE REMEDY Heater ignites, but flame-out control shuts off heater after a short period of time. 1. Wrong pump pressure 2. Dirty air output, air intake and lint filters 1. See Pump Pressure Adjustment, page 9 2. See Air Output, Air Intake and Lint Filters, page 8 3. See Fuel Filter, page 9 4. See Nozzle, page 10 5.
B200T 200,000 BTU/HR PORTABLE FORCED AIR HEATER FAN SERVICE PROCEDURES WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. UPPER SHELL REMOVAL 1. 2. 3. Remove screws along each side of heater using 5/16" nut-driver. These screws attach upper and lower shells together. Lift upper shell off. Remove fan guard. Upper Shell Screw IMPORTANT: Remove fan from motor shaft before removing motor from heater.
OWNER’S MANUAL SERVICE PROCEDURES Continued 2. 3. 4. 5. FUEL VALVE 1. 1. 2. 3. PUMP PRESSURE ADJUSTMENT 1. FUEL FILTER Remove pressure gauge plug from filter end cover. Install accessory pressure gauge (part number HA1180). Start heater (see Operation, page 5). Allow motor to reach full speed. Adjust pressure to 6.0 PSI. Turn relief valve to right to increase pressure. Turn relief valve to left to decrease pressure. Stop heater. Remove pressure gauge.
B200T 200,000 BTU/HR PORTABLE FORCED AIR HEATER SERVICE PROCEDURES Continued NOZZLE 9. 1. 2. 3. 10. 11. SPARK PLUG 1. 2. 3. 4. 5. 6. 7. 8. 9. Remove upper shell (see page 8). Remove fan (see page 8). Remove spark plug wire from spark plug. Remove spark plug and wave spring washer from burner head using 13/16" open-end wrench. Clean and regap spark plug electrodes to .110 gap. Install spark plug and wave spring washer in burner head. Torque 40 to 60 inch-pounds.
OWNER’S MANUAL SERVICE PROCEDURES Continued PUMP ROTOR Nozzle Seal Nozzle Face Nozzle (Procedure if rotor is binding) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Remove upper shell (see page 8). Remove filter end cover screws using 5/16" nut-driver. Remove filter end cover and air filters. Remove pump plate screws using 5/16" nut-driver. Remove pump plate. Remove rotor, insert, and blades. Check for debris in pump. If debris is found, blow out with compressed air. Install insert and rotor.
B200T 200,000 BTU/HR PORTABLE FORCED AIR HEATER ILLUSTRATED PARTS BREAKDOWN 2 1 3 B200T 4 7-1 6 49 7 9 10 50 39 5 16 7-8 8 19 23 7-3 13 24 7-4 7-7 14 11 12 28 45 23 15 7-5 43 25 17 26 44 7-6 Burner Head Assembly 27 29 18 22 21 30 38 20 37 48 47 31 46 40 10-1 32 10-2 42 35 10-3 10-4 10-5 33 34 10-6 36 41 44-1 10-7 10-17 10-8 44-4 44-6 10-16 44-5 10-9 10-15 10-18 Motor and Pump Assembly 10-10 10-14 44-7 10-11 44-4 10-13 10-12 12 44-8 Fuel Valve Assemb
OWNER’S MANUAL PARTS LIST B200T This list contains replaceable parts used in your heater. When ordering parts, be sure to provide the correct model and serial numbers (from the model plate), then the part number and description of the desired part. KEY NO.
B200T 200,000 BTU/HR PORTABLE FORCED AIR HEATER PARTS LIST SPECIFICATIONS Continued PARTS AVAILABLE - NOT SHOWN PART NUMBER DESCRIPTION 099650-01 098224-48 097644-07 M9900-192 100621-02 Clip (Secures Thermostat and Power Cord Wires) General Information Decal Tradename Decal Combustion Chamber Grounding Wire Thermostat Decal QTY. WHEELS AND HANDLE PARTS LIST KEY PART NO. NUMBER 1 2 3 4 5 6 7 PART DESCRIPTION HA2204 M12345-33 M12831-3 NTC-3C 097896-04 M28526 M16801-2 QTY.
OWNER’S MANUAL WIRING DIAGRAM REPLACEMENT PARTS Power Plug 120V/60Hz Thermostat Green White White B Blue Blue Flame-Out Control White White Green Motor Green/Yellow Ignitor Spark Plug Red Terminal Board Red Black Relay Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty.
WARRANTY AND REPAIR SERVICE KEEP THIS WARRANTY Model No. Serial No. Date of Purchase (To be filled in by purchaser) LIMITED WARRANTY DESA International warrants this product and any parts thereof, to be free from defects in materials and workmanship for one (1) year from the date of first purchase when operated and maintained in accordance with instructions. This warranty is extended only to the original retail purchaser, when proof of purchase is provided.
