PORTABLE FORCED AIR HEATER (WITH BUILT-IN THERMOSTAT) OWNER’S MANUAL 200,000 Btu/Hr Model RM200T 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.
00,000 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 Tank Fuel Cap Side Cover Flame-out Control Reset Button Power Cord Thermostat Knob Figure 1 - RM200T Model 103607 3 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.
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.
200,000 BTU/HR PORTABLE FORCED AIR HEATER STORING, TRANSPORTING, OR SHIPPING 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. This will prevent excess debris from clogging filters during future use. 4.
OWNER’S MANUAL TROUBLESHOOTING Note: For additional help, visit DESA International’s Technical Service web site at www.desatech.com. 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 3. Dirty fuel filter 4. Dirt in nozzle 5.
200,000 BTU/HR PORTABLE FORCED AIR HEATER PUMP PRESSURE ADJUSTMENT SERVICE PROCEDURES 1. Fan WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. 2. Motor 3. UPPER SHELL REMOVAL 1. 2. 3. Flush 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 Motor Shaft 4. 5.
OWNER’S MANUAL Bushing, Lower Fuel Line, and Fuel Filter SERVICE PROCEDURES Continued FUEL FILTER 1. 2. 3. 4. 5. 6. 7. Remove side cover screws using 5/16" nut-driver. Remove side cover. Pull lower fuel line off the fuel valve fitting. Carefully pry bushing, lower fuel line, and fuel filter out of fuel tank. Wash fuel filter with clean fuel and replace in tank. Attach lower fuel line to fuel valve fitting. Replace side cover. Screw FUEL VALVE 1. 2. 3.
200,000 BTU/HR PORTABLE FORCED AIR HEATER Side Electrode SERVICE PROCEDURES Continued SPARK PLUG 1. 2. 3. 4. 5. 6. 7. 8. 9. Remove upper shell (see Upper Shell Removal, page 8). Remove fan (see Fan, page 8). Remove spark plug wire from spark plug (see Figure 12). 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 (see Figure 13). Install spark plug and wave spring washer in burner head. Torque 40 to 60 inch-pounds.
OWNER’S MANUAL PUMP ROTOR SERVICE PROCEDURES (Procedure if Rotor is Binding) 1. Continued 2. Nozzle Face 3. 4. Nozzle Seal 5. 6. 7. Nozzle 8. 9. Burner Head Air Line Fitting Figure 16 - Removing Nozzle Fuel Line Fitting Remove upper shell (see Upper Shell Removal, 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.
200,000 BTU/HR PORTABLE FORCED AIR HEATER ILLUSTRATED PARTS BREAKDOWN 2 1 3 RM200T 4 7-1 6 49 7 9 7-2 10 50 39 5 16 7-8 8 7-3 19 23 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 10-7 10-17 44-1 10-8 44-4 44-7 10-16 44-5 10-9 10-15 10-18 10-10 10-14 10-11 10-13 Motor and Pump Assembly 44-6 44-8 44-4 44-2 44-3 10-12 12 Fue
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. RM200T KEY NO.
200,000 BTU/HR PORTABLE FORCED AIR HEATER WHEELS AND HANDLE PARTS LIST KEY PART NO. NUMBER 1 2 3 4 5 6 7 PART DESCRIPTION 105227-01 M12345-33 M12831-3 NTC-3C 097896-04 M28526 M16801-2 Output Rating (Btu/Hr.) 200,000 Fuel Use Only Kerosene or No. 1 Fuel Oil Fuel Tank Capacity (U.S. Gal.) 13.5 Fuel Consumption (Gal. Per Hr.) 1.4 Pump Pressure (PSI) 6.0 Electric Requirements 120 V/60 Hz Amperage (Normal Run) 4.5 Hot Air Output (CFM) 600 Motor RPM 3450 Motor HP 1/4 Shipping Weight (Approx.
OWNER’S MANUAL WIRING DIAGRAM REPLACEMENT PARTS Power Plug 120V/60Hz 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.
