PORTABLE FORCED AIR HEATER OWNER’S MANUAL Heater Sizes: 35,000 and 55,000 Btu/Hr H.S.I. Series 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.
35,000 And 55,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATERS 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 FUELS 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. Handle Hot Air Outlet Upper Shell Fan Guard Lower Shell Air Filter End Cover Fuel Tank Fuel Cap Side Cover Ignition Control Assembly (assembly on inside of side cover) Power Cord THEORY OF OPERATION The Air System: The motor turns the fan.
35,000 And 55,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATERS 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. 5. TO START HEATER 1. 2. 3. 4. Follow all ventilation and safety information. Fill fuel tank with kerosene or No. 1 fuel oil. Attach fuel cap. Plug power cord of heater into threeprong, grounded extension cord.
OWNER’S MANUAL TROUBLESHOOTING WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. FAULT CONDITION POSSIBLE CAUSE REMEDY Motor does not start five seconds after heater is plugged in. 1. No power to heater 1. Check circuit breaker in electrical panel. WARNING: High voltage! 2. Bad electrical connection between motor and ignition control assembly or ignition control assembly and power cord 3. Blown fuse on ignition control assembly 4.
35,000 And 55,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATERS PUMP PRESSURE ADJUSTMENT SERVICE PROCEDURES Fan WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. 1. Motor 2. 3. Flush UPPER SHELL REMOVAL 1. 2. 3. 4. 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. Motor Shaft Setscrew 5. 6.
OWNER’S MANUAL SERVICE PROCEDURES Continued WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. IGNITOR 1. 2. 3. 4. FUEL FILTER 1. 2. 3. 4. 5. 6. 7. Remove 4 side cover screws using 5/16" nut-driver. Remove side cover. Pull upper fuel line off fuel filter neck. Carefully pry bushing and fuel filter out of fuel tank. Wash fuel filter with clean fuel and replace in tank. Attach upper fuel line to fuel filter neck. Replace side cover.
35,000 And 55,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATERS Nozzle Face SERVICE PROCEDURES Combustion Chamber Continued NOZZLE ASSEMBLY 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Remove upper shell (see page 6). Remove fan (see page 6). Remove fuel and air line hoses from nozzle assembly (see Figure 12). Turn nozzle assembly 1/4 turn to left and pull toward motor to remove (see Figure 13). Place plastic hex-body into vise and lightly tighten.
OWNER’S MANUAL SPECIFICATIONS Output Rating (Btu/Hr) Fuel Fuel Tank Capacity (U.S. Gal.) Fuel Consumption (Gal. Per Hr.) Pump Pressure (p.s.i.) Electric Requirements Amperage (Normal Run) Hot Air Output (CFM) Motor RPM Motor HP Shipping Weight (Approximate Pounds) Heater Weight without Fuel (Approximate Pounds) 35,000 55,000 Use Only Kerosene or No. 1 Fuel Oil 3.0 5.0 .30 .44 3.0 3.4 120 V/60 Hz 2.0 2.
35,000 And 55,000 Btu/Hr H.S.I.
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's Parts Department at 1-800972-7879 for referral information. Parts Centrals are listed in the Authorized Service Center booklet supplied with heater. THERMOSTAT KIT - HA1210 Keeps your building at the temperature you select day and night. Helps economize on fuel.
35,000 And 55,000 Btu/Hr H.S.I.
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. REM35C REM55B R35E R55B KEY NO.
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.
