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KEROSENE/DIESEL PORTABLE FORCED AIR HEATERS
OWNER’S MANUAL
New
Straight
Shell
Design
HEATER SIZES: 40,000 50,000 55,000 60,000 70,000 110,000
115,000 155,000 165,000 AND 200,000 BTU/HR MODELS
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.
TABLE OF CONTENTS
Safety Information ............................................... 2 Preventative Mainten
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e) At no time shall more than one day's supply SAFETY INFORMATION of heater fuel be stored inside a building in the vicinity of the heater. Bulk fuel storage WARNING: This product con- shall be outside the structure. tains and/or generates chemicals f) All fuel storage shall be located a minimum known to the State of California of 25 feet (762cm) from heaters, torches, to cause cancer or birth defects, welding equipment, and similar sources of or other reproductive harm. ignition (exception: th
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SAFETY INFORMATION Hot Air Thermostat Knob Outlet Continued (Thermostat Fan Guard • Never move, handle, refuel, or service a hot, Models Only) operating, or plugged-in heater. • Never attach duct work to front or rear of heater. • Never attach heater to external fuel tank. • Heaters used in the vicinity of tarpaulins, can- vas, or similar enclosure materials shall be lo- cated a safe distance from such materials. The recommended minimum safe distance is 10 feet Fuel (304.8cm). It is further reco
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FUELS VENTILATION WARNING: Use only kero- WARNING: Provide a fresh sene, #1/#2 diesel/fuel oil, JET A air opening of at least three or JP-8 fuels to avoid risk of fire square feet (2,800 square cm) or explosion. Never use gaso- for each 100,000 Btu/hr rating. line, oil drained from crankcases, Provide extra fresh air if more naphtha, paint thinners, alcohol heaters are being used. The mini- or other highly flammable fuels. mum ventilation requirements must be followed to avoid risks Use only kero
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ASSEMBLY OPERATION (FOR 110/115/155/165/200 MODELS IMPORTANT: Review and under- ONLY) stand the warnings in the Safety These models are furnished with wheels and a Information section, page 2. handle. Some models are furnished with a second They are needed to safely oper- handle also. Wheels, handle(s), and the mounting ate this heater. Follow all local hardware are found in the shipping carton. ordinances and codes when Tools Needed using this heater. • Medium Phillips Screwdriver • 3/8" Open o
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The operating voltage range of the heater is 108 OPERATION to 132 Volts (120 Volts +/- 10%). Prior to plug- Continued ging heater into generator the output voltage TO RESTART HEATER should be verified (if generator is equipped with the automatic idle feature, the output voltage Wthout ON/OFF Switch should be measured with the generator running at 1. Unplug extension cord from outlet and wait full speed). If the voltage does not measure in 10 seconds. (Wait two minutes if heater has this range
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PREVENTATIVE MAINTENANCE SCHEDULE WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. Item How Often How To Fuel tank Flush every 150-200 hours of operation See Storing, Transporting, or or as needed Shipping, page 6 Air output and lint filters Replace every 500 hours of operation or See Air Output, Air Intake, and once a year Lint Filters, page 9 Air intake filter Wash and dry with soap and water every See Air Output, Air Intake,
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TROUBLESHOOTING Continued FAULT CONDITION POSSIBLE CAUSE REMEDY Motor starts and runs but heater 1. No fuel in tank 1. Fill tank with kerosene does not ignite 2. Pump pressure incorrect 2. See Pump Pressure Adjust- ment, page 10 3. Dirty fuel filter 3. See Fuel Filter, page 10 4. Obstruction in nozzle 4. See Nozzle Assembly, page 13 5. Water in fuel tank 5. Drain and flush fuel tank with clean kerosene. See Storing, Transporting, or Shipping, page 6 WARNING: High voltage! 6. Bad electrical connec
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4. Clean fan using a soft cloth moistened with SERVICE PROCEDURES kerosene or solvent. 5. Dry fan thoroughly. WARNING: To avoid risk of 6. Replace fan on motor shaft. Place fan hub burn and electrical shock, never flush with end of motor shaft (see Figure 13). attempt to service heater while it 7. Place setscrew on flat of shaft. Tighten setscrew is plugged in, operating, or hot. firmly (40-50 inch-pounds/4.5-5.6 n-m). 8. Replace fan guard and upper shell. UPPER SHELL REMOVAL Fan 1. Remove scre
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FUEL FILTER SERVICE PROCEDURES 1. Remove side cover screws using 5/16" nut- Continued driver. 6. Replace filter end cover. 2. Remove side cover. 7. Replace fan guard and upper shell. 3. Pull upper fuel line off fuel filter neck (see IMPORTANT: Do not oil filters. Figure 18 or 19). Air Intake Filter 4. Carefully pry bushing, fuel filter, and lower fuel line (110/115/155/165/200 Models only) Filter End out of fuel tank (see Figure 19). Cover 5. Wash fuel filter with clean fuel and replace in tank.
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Nozzle SERVICE PROCEDURES Combustion Adapter Continued Chamber Bracket IGNITOR Air Line Ignitor 1. Remove upper shell and fan guard (See Up- Hose per Shell Removal, page 9). Fuel 2. Remove fan (see page 9). Line 3. Remove 4 side cover screws with a 5/16" nut Ignitor Hose driver. Remove side cover (see Figures 18 or Wire 19, page 10). Photocell 4. Disconnect ignitor wires from ignition con- Bracket Ignition trol assembly (see Figure 20). Pull the ignitor Photocell Control wires up through the hol
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5. Place plastic hex-body into vise and lightly SERVICE PROCEDURES tighten. Continued 6. Carefully remove nozzle from the nozzle adapter Combustion using 5/8" socket wrench (see Figure 26). Chamber 7. Blow compressed air through face of nozzle. Nozzle This will free any dirt in nozzle area. Adapter 8. Inspect nozzle sleeve for damage. Bracket 9. Replace nozzle into nozzle adapter until nozzle Nozzle/ seats. Tighten 1/3 turn more using 5/8" socket Adapter Photocell wrench 4.5 to 5.1 N-m (40 to 45
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FUEL AND AIR LINE REPLACEMENT SERVICE PROCEDURES AND PROPER ROUTING Continued 1. Remove upper shell (see Upper Shell Re- (For 200 Model Only) moval, page 9). 1. Remove combustion chamber and ignitor by 2. Remove side cover screws using 5/16" nut following steps 1 through 7 under Ignitor, driver (see Figure 18 or 19, page 10). pages 11 and 12. 3. Remove side cover. 2. Carefully place the ignitor in a safe location. 4. Inspect fuel and air line hoses for cracks and/ 3. Remove two nozzle adapter br
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SERVICE PROCEDURES Blade Continued Pump Plate PUMP ROTOR Air (Procedure if Rotor is Binding) Intake 1. Remove upper shell (see Upper Shell Re- Filter moval, page 9). Insert 2. Remove filter end cover screws using 5/16" Rotor nut driver (see Figure 30 or 31). 3. Remove filter end cover and air filters. Air Output Filter 4. Remove pump plate screws using 5/16" Filter End Cover nut-driver. 5. Remove pump plate. Figure 31 - Rotor Location, 110/115/155/ 6. Remove rotor, insert, and blades (see Figure 1
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SERVICE PROCEDURES Continued Fuse Clips Fuse IGNITION CONTROL ASSEMBLY Cover WARNING: High voltage! Fuse 1. Unplug heater. 2. Remove side cover screws (4) using 5/16" nut- driver to expose ignition control assembly. 3. Remove fuse cover (see Figure 34). 4. Remove fuse from fuse clips (see Figure 34). 5. Replace fuse with fuse of the same type and rating (GMA-10). Do not substitute a fuse with Figure 34 - Replacing Fuse a higher current rating. 6. Replace fuse cover (see Figure 34). 7. Replace s
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WIRING DIAGRAMS Blue Photocell Photocell Blue Photocell White Ignitor White Green Motor Return Green AC Neutral (L2) Motor 120V (L1) Red Motor Black Ignitor Ignitor Yellow (40 Models) Blue Photocell Photocell Blue Photocell White Ignitor Green White Motor Return Black Green Motor AC Neutral (L2) 2 3 120V (L1) 1 Red ON/OFF Switch Motor Black Black with Light Ignitor Ignitor Yellow (50/55/60/70/110/115/155/165/200 Models) Figure 35 - Wiring Diagram without Thermostat (40/50/55/60/70/110/115/15
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WIRING DIAGRAMS Continued Blue Photocell Photocell Blue Photocell White Ignitor Green White Motor Return Green Motor AC Neutral (L2) 120V (L1) Red Motor Black Thermostat Ignitor Ignitor Yellow (40 Models) Blue Photocell Photocell Blue Photocell White Ignitor Green White Motor Return Black Green Motor AC Neutral (L2) 2 3 120V (L1) 1 Red ON/OFF Switch Motor Black Black with Light Thermostat Ignitor Ignitor Yellow (50/55/60/70/110/115/155/165/200 Models) Figure 37 - Wiring Diagram with Thermos
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ILLUSTRATED PARTS BREAKDOWN STANDARD MODEL R40, REM40, PK40, UK40, TK40, N40 THERMOSTAT MODELS R40T, REM40T, PK40T, UK40T, TK40T, N40T 4 1 2 5 110/115 Burner Head Assembly 9-1 35 9-2 9-5 3 9 6 7 11 9-4 9-3 8 21 10 12 18 13 20 22 16 23 24 25 28 26 27 30 29 34 38 37 39 36 33 19 17 15 14 32 31 www.desatech.com 113282-01C 18
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PARTS LIST 40 MODELS 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. KEY PART NO. NUMBER DESCRIPTION QTY. 1 M51104-01 Handle 1 2 098511-67 Upper Shell (Service Part Will Be Black) 1 3 M11084-29 Screw, #10-16 x 3/4" 2 1 4 M15823-27 Screw, #10-16 x 1 /2" 6 5 098512-58 Combustion Chamber 1 6 M10908-2 Screw, #6-32 x 3/8" 2 7 103154-0
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ILLUSTRATED PARTS BREAKDOWN STANDARD MODEL R50, REM50, R55C, R60A, PK55, UK55,TK50, TK55,B55C, REM60A, R70E, B70E, RM60A, PK60, UK60, PK70, UK70 THERMOSTAT MODELS R50T, REM50T, R55CT, R60AT, PK55T, UK55T,TK50T, TK55T, B55CT, REM60AT, R70ET, B70ET, RM60T, PK60T, UK60T, PK70T, UK70T 4 1 2 5 9-1 35 9-5 3 9 6 7 11 9-4 9-3 8 21 10 12 18 13 20 22 16 23 24 25 28 26 27 30 29 34 38 37 39 33 36 19 17 15 14 32 31 40 www.desatech.com 113282-01C 20
