PORTABLE FORCED AIR HEATER (WITH BUILT-IN THERMOSTAT) OWNER’S MANUAL 50 SIDE Heater Sizes: 70,000 110,000 150,000 and 165,000 Btu/Hr 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.
70,000 110,000 150,000 AND 165,000 BTU/HR PORTABLE FORCED AIR HEATER SAFETY b)Only the type of fuel specified on the • Use only in well vented areas. Before heater's data plate shall be used. using heater, provide at least a three- INFORMATION c) All flame, including the pilot light, if square-foot opening of fresh, outside...
OWNER’S MANUAL PRODUCT UNPACKING IDENTIFICATION Remove all packing items applied to heater for shipment. 70,000 Btu/Hr Model Remove all items from carton. Hot Air Check items for shipping damage. If Upper Shell Outlet heater is damaged, promptly inform dealer where you bought heater. Lower Shell Fan Guard...
70,000 110,000 150,000 AND 165,000 BTU/HR PORTABLE FORCED AIR HEATER ASSEMBLY FUELS Place cap nuts on axle ends. Gently tap with hammer to secure. The 110,000 150,000 and 165,000 Btu/Hr Place heater on wheel support frame. WARNING: Use only kerosene models are furnished with wheels and Make sure air inlet end (rear) of heater or No.
OWNER’S MANUAL THEORY OF OPERATION Extension Cord Wire Size Require- ments OPERATION 6 to 10 feet long, use 18 AWG rated cord WARNING: Review and un- 11 to 100 feet long, use 16 AWG The Fuel System: The air pump forces derstand the warnings in the rated cord air through the air line.
70,000 110,000 150,000 AND 165,000 BTU/HR PORTABLE FORCED AIR HEATER STORING, PREVENTATIVE WARNING: Never service heater while TRANSPORTING, MAINTENANCE it is plugged in, operating, or hot. Severe burns and electrical shock can occur. OR SHIPPING SCHEDULE Note: If shipping, transport companies re- Item How Often How To...
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 1. Wrong pump pressure 1. See Pump Pressure Adjustment, page 9 off heater after a short period of time 2.
70,000 110,000 150,000 AND 165,000 BTU/HR PORTABLE FORCED AIR HEATER SERVICE AIR OUTPUT, AIR INTAKE, AND LINT FILTERS PROCEDURES IMPORTANT: Remove fan from motor shaft before removing motor from heater. Remove upper shell (see column 1). The weight of the motor resting on the fan Remove filter end cover screws using could damage the fan pitch.
OWNER’S MANUAL SERVICE FUEL FILTER SPARK PLUG 1. Remove side cover screws using 5/16" Remove upper shell (see page 8). PROCEDURES nut-driver. Remove fan (see page 8). Continued 2. Remove side cover. Remove spark plug wire from spark plug. PUMP PRESSURE 3.
70,000 110,000 150,000 AND 165,000 BTU/HR PORTABLE FORCED AIR HEATER SERVICE Nozzle Face Pump Plate Blade Nozzle Air Intake Filter PROCEDURES Seal Continued Filter End Cover NOZZLE Nozzle 1. Remove upper shell (see page 8). 2. Remove fan (see page 8). Insert 3.
OWNER’S MANUAL SPECIFICATIONS REPLACEMENT PARTS Output Rating (Btu/Hr.) 70,000 110,000 150,000 165,000 Fuel Use Only Kerosene or No. 1 Fuel Oil Note: Use only original replacement parts. Fuel Tank Capacity This will protect your warranty coverage for (U.S. Gal.) 13.5 13.5 parts replaced under warranty.
OWNER’S MANUAL PARTS LIST 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. 70,000 BTU/HR PART PART...
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70,000 110,000 150,000 AND 165,000 BTU/HR PORTABLE FORCED AIR HEATER ILLUSTRATED PARTS BREAKDOWN 110,000 150,000 AND 165,000 BTU/HR Burner Head Assembly 10-1 10-3 10-2 10-4 10-5 10-6 10-7 10-17 10-8 10-16 10-9 10-15 10-10 10-13 10-14 10-11 10-13 10-12 Motor and Pump Assembly 103301...
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OWNER’S MANUAL PARTS LIST 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 110,000 150,000 AND and description of the desired part. 165,000 BTU/HR PART PART...
70,000 110,000 150,000 AND 165,000 BTU/HR PORTABLE FORCED AIR HEATER PARTS LIST WHEELS AND HANDLE PARTS LIST 150/165 KEY PART PART MODEL MODELS NUMBER DESCRIPTION QTY. QTY. HA2203 Handle 2 (if equipped) — HA2204 Handles — 2 (if equipped) M12345-33 Screw, #10-24 x 1 3/4"...
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OWNER’S MANUAL ACCESSORIES Purchase accessories and parts from your nearest dealer or service center. If they can not supply these accessories or parts, either contact your nearest Parts Central or DESA International for referral information. Parts Centrals are listed in the Authorized Service Center booklet supplied with heater.
WARRANTY AND REPAIR SERVICE 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.