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Related Manuals for Desa B50G
Summary of Contents for Desa B50G
- Page 1 PORTABLE FORCED AIR HEATERS OWNER’S MANUAL Heater Models: B50G and REM50B IMPORTANT Read and understand this manual before assembling, starting, or servic- ing heater. Improper use of heater can cause serious injury. Keep this manual for future reference. ® G 004...
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Page 2: Table Of Contents
CONTENTS SAFETY INFORMATION SECTION Safety Information ... 2 Product Identification ... 4 Unpacking ... 4 Theory of Operation ... 4 Fuels ... 5 Ventilation ... 5 Operation ... 6 Storing, Transporting, or Shipping ... 7 Preventative Maintenance Schedule ... 7 Troubleshooting ... - Page 3 SAFETY INFORMATION Continued 102016 WARNINGS • 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 familiar with the manufacturer's instructions and applicable federal, state, and local regula- tions regarding the safe fueling of heating units.
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Page 4: Product Identification
Reset Button Power Cord 35/50/70,000 BTU/HR DOMESTIC Figure 1 - Models B50G and REM50B 1. Remove all packing items applied to heater for shipment. 2. Remove all items from carton. 3. Check items for shipping damage. If heater is damaged, promptly inform dealer where you bought heater. -
Page 5: Fuels
FUELS VENTILATION 102016 WARNING 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. Do not use heavy fuels such as No. 2 fuel oil or No. 2 Diesel. Using heavy fuels will result in: •... -
Page 6: Operation
OPERATION Review and understand the warnings in the Safety Information Section, pages 2 and 3. They are needed to safely operate this heater. Follow all local codes when using this heater. To Start Heater 1. Follow all ventilation and safety information. 2. -
Page 7: Storing, Transporting, Or Shipping
STORING, TRANSPORTING, OR SHIPPING PREVENTATIVE MAINTENANCE SCHEDULE 102016 Note: If shipping, transport companies require fuel tanks to be empty. 1. Drain fuel tank. Note: Some models have drain plug on underside of fuel tank. If so, remove drain plug to drain all fuel. If heater does not have drain plug, drain fuel through fuel cap opening. -
Page 8: Troubleshooting
TROUBLE- SHOOTING OBSERVED FAULT Heater ignites, but flame-out control shuts off heater after a short period of time. Heater will not ignite, but motor runs for a short period of time. Motor does not start when heater is plugged in, fan rotates slowly or does not turn. -
Page 9: Service Procedures
SERVICE PROCEDURES 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. IMPORTANT: Remove fan from motor shaft before removing motor from heater. -
Page 10: Pump Pressure Adjustment
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. Turn relief valve to left to decrease pressure. -
Page 11: Nozzle
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 fan guard and upper shell. Nozzle 1. Remove upper shell (see page 9). 2. -
Page 12: Specifications
Spark Plug Ignitor Motor Board Figure 19 - Wiring Diagram You may have further questions about operation or troubleshooting. If so, contact DESA International's Technical Service Dept. at 1-800-323-5190. .003"/.004" Gap Sandpaper Measured With Feeler Gauge Figure 18 - Sanding Rotor... -
Page 13: Replacement Parts
Usually, we will ask you to return the defective part to the factory. Parts Not Under Warranty Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Parts Dept. at 1-800-972-7879 for information. When calling DESA International, have ready ACCESSORIES... -
Page 14: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS BREAKDOWN 12-1 12-2 12-3 12-18 12-17 12-16 12-15 MOTOR & PUMP 30 EAI/EBI 12-4 12-5 12-6 12-7 12-8 12-9 12-14 12-13 12-11 12-12 PFA/P 003 12-10 102016... - Page 15 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 Models B50G and number and description of the desired part. REM50B...
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Page 16: Warranty And Repair Service
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. If so, DESA International will repair or replace the heater without charge. REPAIR SERVICE Return the heater to your nearest authorized service center.