PORTABLE FORCED AIR HEATERS “USER’S MANUAL” DuraHeat® MODEL: DFA45 DFA65 DFA120 DFA170T C US C US LISTED Before the first use of this heater, please read this USER’S MANUAL very carefully. This USER’S MANUAL has been designed to instruct you as to the proper manner in which to assemble the heater, maintain the heater, store the heater, and most importantly, how to operate the heater in a safe and efficient manner. Please keep this manual for future reference. WORLD MARKETING OF AMERICA, INC. RT.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! DANGER IMPROPER USE OF THIS HEATER CAN RESULT IN SERIOUS INJURY OR DEATH FROM BURNS, FIRE, EXPLOSION, ELECTRICAL SHOCK AND/OR CARBON MONOXIDE POISONING. WARNINGS: 1. RISK OF INDOOR AIR POLLUTION! • Use this heater only in well ventilated areas. Provide at least a three-square foot (2800 sq. cm.) opening of fresh outside air for each 100,000 BTU/hr. of heater rating. • People with breathing problems should consult a physician before using the heater.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! CONTENTS OF USER’S MANUAL ITEM PAGE # PRECAUTIONS - SAFETY GUIDE 1. INTRODUCTION 2. FEATURES 3. UNPACKING AND ASSEMBLY 4. KEROSENE (1-K OR NO. 1 FUEL OIL) 5. OVERVIEW OF HEATER DESIGN 6. FUELING YOUR HEATER 7. OPERATION 8. LONG TERM STORAGE OF YOUR HEATER 9. MAINTENANCE 10. TROUBLE SHOOTING GUIDE 11. WIRING DIAGRAM 12. SPECIFICATIONS 13 EXPLODED PARTS DRAWING 14. PARTS LIST 1 2 2 4 6 7 8 8 9 9 13 14 15 16 17 1.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! Figure 2. DFA120 MODEL Handle Upper Shell Hot Air Outlet Upper Shell Fan Guard Lower Shell Fuel Gauge Fuel Cap Side Cover Power Cord Lamp Fuel Tank Power/Reset Switch Figure 3.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 3. UNPACKING AND ASSEMBLY 1. REMOVE THE HEATER AND ALL PACKING MATERIALSFROM THEBOX. (Fig. 4) NOTE: Save the shipping carton and packing materials for future storage. DFA45/ 65 Wheel Support Frame Wheels Handle Screws and Nuts Axle Split Pin and Washer No No Yes Yes No No DFA120 DFA170T Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Figure 4. DFA45/DFA65 MODEL Handle Screws Figure 5.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 2. ASSEMBLING A. For DFA45/DFA65 Model only (Figure 6) Screw Tools Required • Medium Phillips Screwdriver 1. Align the holes on the upper shell with the 2 mounting holes on the handle as shown in Figure 6. Handle 2. Secure each hole with a screw. Figure 6 B. For DFA120 and DFA170T only (Figure 7) These models are furnished with wheels and handles. Wheels, handles, and the mounting hardware are found in the shipping carton.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! Handle Screw Hot Air Outlet Fuel Tank Flange Air Inlet Wheel Support Frame Extended Hub Nut Wheel Axle Plane Washer Split Pin Figure 7. Wheel and Handle Assembly, DFA120/DFA170T MODELS ONLY 4. KEROSENE (1-K) It is EXTREMELY IMPORTANT for the proper operation of this heater that you use the correct grade of kerosene. The correct grade of kerosene is identified as 1-K kerosene.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 5. OVERVIEW OF HEATERS DESIGN Fuel System: This heater is equipped with an electric air pump that forces air through the air line connected to the fuel intake and then through a nozzle in the burner head. When the air passes in front of the fuel intake it causes fuel to rise from the tank and into the burner nozzle. This fuel and air mixture is then sprayed into the combustion chamber in a fine mist.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 6. FUELING YOUR HEATER NEVER FILL THE HEATER FUEL TANK IN THE LIVING SPACE: FILL THE TANK OUTDOORS. DO NOT OVERFILL YOUR HEATER AND BE SURE HEATER IS LEVELED. IMPORTANT NOTICE REGARDING FIRST IGNITION OF HEATER: The first time you light the heater, it should be done outdoors. This allows the oils, etc. used in manufacturing the heater to burn off outside. WARNING!!: NEVER REFILL HEATER FUEL TANK WHEN HEATER IS OPERATING OR STILL HOT. 7. OPERATION A.) B.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! TO STOP HEATER 1. Turn switch to “OFF” and unplug power cord. TO RESTART HEATER 1.Wait 10 seconds after stopping heater. 2. Repeat steps under to start heater. 8. LONG TERM STORAGE OF YOUR HEATER 1. Drain fuel tank through fuel cap opening. 2. Using a small amount of kerosene, swirl and rinse the inside of the tank. NEVER mix water with the kerosene as it will cause rust inside the tank. Pour the kerosene out making sure that you remove it all.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! C.) AIR OUTPUT FILTER, LINT FILTER REPLACE EVERY 500 HOURS OF OPERATION OR ONCE A YEAR. - Remove upper shell and fan guard (See page 9). - Remove filter end cover screws using M5 nut driver. - Remove filter end cover. - Replace air output and lint filter. - Reinstall filter end cover. - Reinstall fan guard and upper shell. Air Output Filter Intake Filter Filter End Cover Lint Filter Figure 11. D.) FAN BLADES CLEAN EVERY SEASON OR AS NEEDED.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! F.) SPARK PLUG CLEAN AND REGAP EVERY 600 HOURS OPERATION OR REPLACE AS NEEDED. - Remove upper shell (See page 9). - Remove fan (See page 10). Burner - Remove ignitor wire from spark plug. Head Gap - Remove spark plug from burner head using medium phillips screwdriver. - Clean and regap spark plug electrodes to 3.5mm gap. - Install spark plug in burner head. - Attach ignitor wire to spark plug. Spark Plug - Reinstall fan and upper shell. Figure 14.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! I.) PUMP PRESSURE ADJUSTMENT - Remove pressure gauge plug from filter end cover. - Install accessory pressure gauge. - Start heater (See Operation, page 8) - Adjust pressure (Using a flat blade screwdriver) Turn relief valve to right to increase pressure. Turn relief valve to left to decrease pressure. Set pump pressure as noted below correct pressure for each model. - Stop heater (See Operation, page 8) - Remove pressure gauge.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 10. TROUBLE SHOOTING GUIDE TROUBLE Heater ignites but MAIN PCB assembly shuts heater off after a short period of time. (Lamp is flickering) Heater will not ignite but motor runs for a short period of time. (Lamp is flickering) POSSIBLE CAUSE 1. Wrong pump pressure 2. Dirty Air Output, Air Intake and Lint Filter 3. Dirty Fuel Filter 4. Dirt in Nozzle 5. Dirty Photocell Lens 6. Photocell Assembly not properly installed. (Not seeing the flame) 7.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 11. WIRING DIAGRAM A. WIRING DIAGRAM (DFA45/DFA65) B. WIRING DIAGRAM (DFA120) C.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 12. SPECIFICATIONS 760cm 300cm DFA45/DFA65 H D W DFA120 DFA170T 589cm 629cm 853cm 993cm 483cm 522cm W D MODEL DFA45 DFA65 DFA120 DFA170T BTU/Hr. 45,000 65,000 120,000 170,000 Fuel Consumption - Gal./Hr. .35 0.5 0.9 1.3 Fuel Tank Capacity - Gal. 5.0 5.0 10.0 13.0 Pump Pressure PSI 3.5 3.5 4.5 6.5 120VAC/60 120VAC/60 120VAC/60 120VAC/60 Amps 1.7 1.7 2.6 3.3 Phase 1 1 1 1 32/14.5 32/14.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 13. EXPLODED PARTS DRAWING NOTE: SPECIFY MODEL NUMBER AND PART NUMBER WHEN ORDERING PARTS.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 14. PARTS LIST KEY NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 16-1 16-2 16-3 16-4 16-5 17 17-1 17-2 17-3 17-4 17-5 17-6 17-7 17-8 17-9 17-10 17-11 17-12 17-13 18 19 DESCRIPTION Fuel Tank Assembly Fuel Gauge Fuel Filter Assembly Fuel Cap Power Cord Power Switch Display P.C.B.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 14. PARTS LIST KEY NO. 20 21 22 23 23-1 24 25 26 27 DESCRIPTION Side Cover R Side Cover L Fan Guard Main P.C.B. Assembly Fuse Clip Nut Upper Shell Handle Wheel Assembly ACCESSORIES Air Pressure Gauge Thermostat DFA45 280-5102-90 280-5102-91 285-3107-40 160-9200-080 FA1015 285-4105-00 285-5103-10 285-3106-80 ----- PART NO.
LIMITED WARRANTY: This limited warranty is extended to the original retail purchaser of this DuraHeat Heater and warrants against any defect in materials and workmanship for a period of one (1) year from the date of retail sale. World Marketing of America, Inc., at it's option, will either provide replacement parts or replace or repair the unit, within one (1) year of retail purchase. (Shipping costs, labor costs, etc. are the responsibility of the purchaser.
