Master B35CEL Owner's Manual

ing or servicing heater. Improper use of heater can cause serious injury. Keep this manual for future reference. R Heater Sizes: 35,000 70,000 100,000 150,000 Btu/Hr Models: B35CEL, B70CEL, B100CEL, and B150CEL PORTABLE FORCED AIR HEATERS OWNER’S MANUAL

R SAFETY INFORMATION WARNINGS IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, oper- ate, or service this heater. Im- proper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning. DANGER: Carbon monoxide poisoning may lead to death! Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, and/or nau- sea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, per- sons with heart or lung disease or anemia, those under the influence of alcohol, and those at high altitudes. Make certain you read and understand all warnings. Keep this manual for reference. It is your guide to safe and proper operation of this heater. • 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. • Fueling a) Personnel involved with fueling shall be qualified and thoroughly familiar with the manufacturer's instructions and applicable regulations regarding the safe fueling of heating units. b) Only the type of fuel specified on the heater's data plate shall be used. c) All flame, including the pilot light, if any, shall be extinguished and the heater allowed to cool, prior to fueling. d) During fueling, all fuel lines and fuel- line connections shall be inspected for leaks. Any leaks shall be repaired prior to returning the heater to service. e) At no time shall more than one day's supply of heater fuel be stored inside a building in the vicinity of the heater. Bulk fuel storage shall be outside the structure. f) All fuel storage shall be located a minimum of 762cm (25 feet) from heaters, torches, welding equipment, and similar sources of ignition (exception: the fuel reservoir integral with the heater unit). g) Whenever possible, fuel storage shall be confined to areas where floor penetrations do not permit fuel to drip onto or be ignited by a fire at lower elevation. h) Fuel storage shall be in accordance with the authority having jurisdiction. • Never use heater where gasoline, paint thinner, or other highly flammable vapors are present. • Follow all local ordinances and codes when using heater. • Heaters used in the vicinity of tarpaulins, canvas, or similar enclosure materials shall be located a safe distance from such materials. The recommended minimum safe distance is 304.8cm (10 feet). It is further recommended that these enclo- sure materials be of a fire retardant na- ture. These enclosure materials shall be securely fastened to prevent them from igniting or from upsetting the heater due to wind action. • Use only in well-vented areas. Before us- ing heater, provide at least a 2800 square cm (three-square-foot) opening of fresh, outside air for each 30 kw (100,000 Btu/ Hr) of rating. • Use only in places free of flammable va- pors or high dust content. • Use only the electrical voltage and fre- quency specified on model plate. • Use only a three-prong, grounded exten- sion cord. • Minimum heater clearances from com- bustibles: Outlet: 250 cm (8 Ft.) Sides, Top, and Rear: 125 cm (4 Ft.) • Locate heater on a stable and level sur- face if heater is hot or running or a fire may occur. • When moving or storing heater, keep heater in a level position or fuel spillage may occur. • Keep children and animals away from heater. • Unplug heater when not in use. • When used with thermostat, heater may start anytime. • Never use heater in living or sleeping areas. • Never block air inlet (rear) or air outlet (front) of heater. • Never move, handle, refuel, or service a hot, operating, or plugged-in heater. • Never attach duct work to front or rear of heater.

Upper Shell Power Cord Fuel Tank Fan Guard Lower Shell Side Cover Fuel Tank Upper Shell Hot Air Outlet Handle Fan Guard Air Filter End Cover Fuel Cap Power Cord ON/OFF Switch with Light ON/OFF Switch with Light PRODUCT IDENTIFICATION Figure 1 - B35CEL and B70CEL Models Figure 2 - B100CEL and B150CEL Models UNPACKING 1. Remove all packing items applied to heater for shipment. 2. Remove all items from carton. 3. Check items for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater. 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. Do not use heavy fuels such as No. 2 fuel oil or No. 2 Diesel. Using heavy fuels will result in: • clogged fuel filter and nozzle • use of non-toxic anti-icer in fuel during very cold weather IMPORTANT: Use a KEROSENE ONLY container. Be sure storage container is clean. Foreign matter such as rust, dirt, or water will cause the flame-out control to shut down heater. Foreign matter may also re- quire you to clean fuel system often.

R Screw Wheel Support Frame Wheel Cap Nut Nut Extended Hub Front Handle Axle Rear Handle Air Inlet Fuel Tank Flange Hot Air Outlet ASSEMBLY (FOR B100CEL AND B150CEL MODELS ONLY) These models are furnished with wheels and handles. Wheels, handles, and the mounting hardware are found in the shipping carton. 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 3). Figure 3 - Wheel and Handle Assembly 2. Place cap nuts on axle ends. Gently tap with hammer to secure. 3. Place heater on wheel support frame. Make sure air inlet end (rear) of heater is over wheels. Line up holes on fuel tank flange with holes on wheel sup- port frame. 4. Place front handle and rear handle on top of fuel tank flange. Insert screws through handles, fuel tank flange, and wheel support frame. Attach nut finger tight after each screw is inserted. 5. After all screws are inserted, tighten nuts firmly. VENTILATION WARNING: Follow the mini- mum fresh, outside air ventilation requirements. If proper fresh, out- side air ventilation is not provided, carbon monoxide poisoning can occur. Provide proper fresh, out- side air ventilation before running heater. Provide a fresh air opening of at least 2800 square cm (three square feet) for each 30kw (100,000 Btu/Hr) rating. Provide extra fresh air if more heaters are being used. Example: A 44kw (150,000 Btu/Hr) heater requires one of the following: • a two-car garage door [4.9 meter (16 feet) opening] raised 9 cm (3.5 inches) • a single-car garage door [2.75 meter (9 feet) opening] raised 15.25 cm (6 inches) • two, 76 cm (30 inch) windows raised 28 cm (11 inches)

derstand the warnings in the Safety Information section, page 2. They are needed to safely op- erate this heater. Follow all local codes when using this heater. TO START HEATER 1. Follow all ventilation and safety infor- mation. 2. Fill fuel tank with kerosene or No. 1 fuel oil. 3. Attach fuel cap. 4. Plug power cord of heater into standard 230 volt/50 hertz, grounded (earthed) outlet. Use an extension cord if needed. Use only a three-prong, grounded (earthed) extension cord. Figure 5 - ON/OFF Switch, B35CEL and B70CEL Models Figure 6 - ON/OFF Switch, B100CEL and B150CEL Models THEORY OF OPERATION 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 cham- ber. The Air System: The motor turns the fan. The fan pushes air into and around the combustion chamber. This air is heated and provides a stream of clean, hot air. The Ignition System: The ignition control assembly provides power to the ignitor. This ignites the fuel/air mixture in the com- bustion chamber. The Flame-Out Control System: This sys- tem causes the heater to shut down if the flame goes out. EXTENSION CORD WIRE SIZE REQUIREMENTS Up to 30.5 meters (100 feet) long, use 1.0 mm2 (16 AWG) conductor 30.6 to 61 meters (101 to 200 feet) long, use 1.5 mm2 (14 AWG) conductor Push ON/OFF switch to ON (|) position and heater should start in 5 seconds. If heater does not start, see Troubleshooting (page 7). TO STOP HEATER Push ON/OFF switch to OFF (O) position. TO RESET HEATER 1. Push ON/OFF switch to OFF (O) posi- tion and wait 10 seconds (2 minutes if heater has been running). 2. Repeat steps under To Start Heater. Figure 4 - Cross Section Operational View | O ON/OFF Switch with Light | O ON/OFF Switch with Light Clean Heated Air Out Fuel Filter Air Line To Burner Air Output Filter Air Pump Air Intake Filter Cool Air In Fan Combustion Chamber Ignitor Motor Ignition Control Assembly Air For Fuel System Air For Combustion And Heating Fuel Nozzle Fuel Tank

R STORING, TRANSPORTING, OR SHIPPING Note: If shipping, transport companies re- quire fuel tanks to be empty. 1. Drain fuel tank. Note: Some models have drain plug on underside of fuel tank. If so, remove drain plug to drain all fuel. If heater does not have drain plug, drain fuel through fuel cap opening. Be sure all fuel is removed. 2. Replace drain plug if provided. 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 dur- ing future use. 4. Replace fuel cap or drain plug. Prop- erly dispose of old and dirty fuel. Check with local automotive service stations that recycle oil. 5. If storing, store heater in dry place. Make sure storage place is free of dust and corrosive fumes. IMPORTANT: Do not store kerosene over summer months for use during next heating season. Using old fuel could damage heater. PREVENTATIVE MAINTENANCE SCHEDULE How To See Storing, Transporting, or Ship- ping See Air Output, Air Intake, and Lint Filters, page 10 See Air Output, Air Intake, and Lint Filters, page 10 See Fuel Filter, page 8 See Fan, page 13 WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. Item Fuel tank Air output and lint filters Air intake filter Fuel filter Ignitor Fan blades Motor How Often Flush every 150-200 hours of operation or as needed Replace every 500 hours of operation or once a year Wash and dry with soap and water every 500 hours of op- eration or as needed Clean twice a heating season or as needed No maintenance required Clean every season or as needed Not required/permanently lu- bricated REMEDY 1. Check all electrical connections. See Wiring Diagram, page 23 2. If fan does not turn freely, see Pump Rotor, page 12 3. Replace ignition control assembly 4. Replace motor POSSIBLE CAUSE 1. Bad electrical connection between motor and ignition control assembly or ignition control assembly and power cord 2. Binding pump rotor 3. Defective ignition control assembly 4. Defective motor TROUBLESHOOTING WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. WARNING: High voltage! FAULT CONDITION Motor does not start five seconds after heater is plugged in (ON/OFF switch light remains on) HEATER WITH FUSED OR NON-FUSED IGNITION CONTROL ASSEMBLY

2. See Pump Pressure Adjustment, page 10 3. See Fuel Filter, page 8 4. See Nozzle Assembly, page 11 5. Drain and flush fuel tank with clean kerosene. See Storing, Transporting, or Shipping, page 6 6. Check electrical connections. See Wiring Diagram, page 23 7. Replace ignitor, see page 9 8. Replace ignition control assembly 1. See Pump Pressure Adjustment, page 10 2. See Air Output, Air Intake, and Lint Filters, page 10 3. See Fuel Filter, page 8 4. See Nozzle Assembly, page 11 5. Make sure photocell boot is properly seated in bracket 6. Clean photocell lens 7. Check electrical connections. See Wiring Diagram, page 23 8. Replace photocell 9. Replace ignition control assembly POSSIBLE CAUSE 1. No fuel in tank 2. Pump pressure incorrect 3. Dirty fuel filter 4. Obstruction in nozzle assembly 5. Water in fuel tank 6. Bad electrical connection between ignitor and ignition control assembly 7. Defective ignitor 8. Defective ignition control assembly 1. Pump pressure incorrect 2. Dirty air intake, air output, and/or lint filter 3. Dirty fuel filter 4. Obstruction in nozzle assembly 5. Photocell assembly not properly installed (not seeing the flame) 6. Dirty photocell lens 7. Bad electrical connection between photocell and ignition control assembly 8. Defective photocell 9. Defective ignition control assembly TROUBLESHOOTING Continued FAULT CONDITION Motor starts and runs but heater does not ignite (ON/OFF switch light remains on) Heater ignites but ignition control assembly shuts heater off after a short period of time (ON/OFF switch light remains on) WARNING: High voltage! WARNING: High voltage! HEATER WITH NON-FUSED IGNITION CONTROL ASSEMBLY ONLY REMEDY 1. Verify that power cord is plugged into an electrical outlet and that the circuit breaker in the electral panel is reset 2. Check electrical wiring and connections. See Wiring Diagram, page 23 3. Check ignitor wiring. If no problems are found, replace ignitor (see page 9) 1. Check motor wiring. If no problems are found, replace motor POSSIBLE CAUSE 1. No power to heater 2. Bad electrical connections 3. Electrical short in ignitor 1. Electrical short in motor FAULT CONDITION ON/OFF switch light does not come on when switch is turned to the ON (|) position and heater does not start ON/OFF switch light comes on when switch is turned to the ON (|) Position but turns off after five seconds ATTENTION: The ignition control has built-in protection against current overloads. Use the light in the ON/OFF switch to troubleshoot the fault condition. WARNING: High voltage! WARNING: High voltage!

R Figure 9 - Fuel Filter Removal, B35CEL and B70CEL Models UPPER SHELL REMOVAL 1. Remove screws and lock washers along each side of heater using 5/16" nut- driver. These screws attach upper and lower shells together. 2. Lift upper shell off. 3. Remove fan guard. FUEL FILTER (B35CEL and B70CEL Models) 1. Remove side cover screws using 5/16" nut-driver. 2. Remove side cover. 3. Pull rubber fuel line off fuel filter neck. 4. Carefully pry bushing and fuel filter out of fuel tank. 5. Wash fuel filter with clean fuel and re- place in tank. 6. Attach rubber fuel line to fuel filter neck. 7. Replace side cover. FUEL FILTER (B100CEL and B150CEL Models) 1. Remove side cover screws using 5/16" nut-driver. 2. Remove side cover. 3. Pull upper fuel line off fuel filter neck. 4. Carefully pry bushing, lower fuel line, and fuel filter out of fuel tank. 5. Wash fuel filter with clean fuel and re- place in tank. 6. Attach upper fuel line to fuel filter neck. 7. Replace side cover. SERVICE PROCEDURES WARNING: Never service heater while it is plugged in, op- erating, or hot. Severe burns and electrical shock can occur. Upper Shell Fan Guard Figure 7 - Upper Shell Removal, B35CEL and B70CEL Models Figure 8 - Upper Shell Removal, B100CEL and B150CEL Models Fuel Filter Side Cover Fuel Line Fan Guard Upper Shell Fuel Filter, Bushing, and Lower Fuel Line Upper Fuel Line Side Cover Figure 10 - Fuel Filter Removal, B100CEL and B150CEL Models

page 8). 2. Remove fan (see page 13). 3. Remove 4 side cover screws with a 5/16" nut driver. Remove side cover (see Figure 9 or 10, page 8). 4. Disconnect ignitor wires (yellow) from ignition control assembly (see Figure 11). Pull the ignitor wires up through the hole in the lower shell. 5. Disconnect fuel line hose and air line hose. Remove photocell from photocell bracket (see Figure 11). Combustion Chamber Photocell Bracket Photocell Assembly Air Line Hose Fuel Line Hose Combustion Chamber Photocell Bracket Ignitor Wires Ignitor Nozzle Adapter Bracket Ignition Control Assembly Side Cover Figure 11 - Disconnecting Ignitor Wires from Ignition Control Assembly Ignitor Ignitor Screw/Washer Assembly Nozzle Adapter Bracket Nozzle Adapter Bracket Opening Ignitor Element Figure 12 - Ignitor Replacement CAUTION: Do not bend or strike ignitor element. Handle with care. 6. Remove combustion chamber. Stand combustion chamber on end with nozzle adapter bracket on top (see Fig- ure 12). 7. Remove ignitor screw with a 1/4" nut driver. Carefully remove ignitor from nozzle adapter bracket. 10. Replace combustion chamber. 11. Route the ignitor wires back down through the hole in the lower shell. Connect wires to the ignition control assembly. 12. Replace side cover (see Figure 9 or 10, page 8). 13. Connect and route fuel line hose and air line hose to burner head. See Fuel and Air Line Replacement and Proper Routing, page 11. 14. Replace photocell in photocell bracket. Route wires as shown in either Figure 17, 18, or 19, page 11. 15. Replace fan (see page 13). 16. Replace fan guard and upper shell (see page 8). 8. Carefully remove replacement ignitor from styrofoam packing. 9. Carefully guide ignitor into opening in nozzle adapter bracket. Do not strike ignitor element. Attach ignitor to nozzle adapter bracket with screw us- ing a 1/4" nut driver (see Figure 12). Torque .90 to 1.69 N-m (8 to 15 in-lbs) Do not over torque.

R AIR OUTPUT, AIR INTAKE, AND LINT FILTERS 1. Remove upper shell (see page 8). 2. Remove filter end cover screws using 5/16" nut-driver. 3. Remove filter end cover. 4. Replace air output and lint filters. 5. Wash or replace air intake filter (see Preventative Maintenance Schedule, page 6). 6. Replace filter end cover. 7. Replace fan guard and upper shell. IMPORTANT: Do not oil filters PUMP PRESSURE ADJUSTMENT 1. Remove pressure gauge plug from filter end cover. 2. Install accessory pressure gauge (part number 4109.427). 3. Start heater (see Operation, page 5). Allow motor to reach full speed. 4. Adjust pressure. Turn relief valve to right to increase pressure. Turn relief valve to left to decrease pressure. See specifications below for correct pres- sure for each model. 5. Remove pressure gauge. Replace pres- sure gauge plug in filter end cover. Figure 13 - Air Output, Air Intake, and Lint Filters, B35CEL and B70CEL Models Figure 15 - Pressure Gauge Plug Removal Pressure Gauge Plug Pressure Gauge Figure 16 - Adjusting Pump Pressure Pump Pressure Model (Bar/PSI) B35CEL 0.200/2.9 B70CEL 0.338/4.9 B100CEL 0.338/4.9 B150CEL 0.380/5.5 (B35CEL and B70CEL Models Shown) Relief Valve SERVICE PROCEDURES Continued Air Intake Filter Lint Filter Filter End Cover Air Output Filter Fan Guard Air Intake Filter Filter End Cover Lint Filter Air Output Filter Figure 14 - Air Output, Air Intake, and Lint Filters, B100CEL and B150CEL Models Fan Guard Plastic Cap

Hoses (B100CEL Model Only) Figure 20 - Removing Nozzle/Adapter Assembly Figure 21 - Nozzle and Nozzle Adapter NOZZLE ASSEMBLY 1. Remove upper shell (see page 8). 2. Remove fan (see page 13). 3. Remove fuel and air line hoses from nozzle assembly (see Figure 17, 18 or 19). 4. Turn nozzle assembly 1/4 turn to left and pull toward motor to remove (see Figure 20). 5. Place plastic hex-body into vise and lightly tighten. 6. Carefully remove nozzle from the nozzle adapter using 5/8" socket wrench (see Figure 21). 7. Blow compressed air through face of nozzle. This will free any dirt in nozzle area. 8. Inspect nozzle seal for damage. 9. Replace nozzle into nozzle adapter un- til nozzle seats. Tighten 1/3 turn more using 5/8" socket wrench 4.5 to 5.1 N- m (40 to 45 in-lbs). See Figure 21. 10. Attach nozzle assembly to burner strap. 11. Attach fuel and airline hoses to nozzle assembly. See Fuel and Airline Re- placement and Proper Routing. 12. Replace fan (see page 13). 13. Replace fan guard and upper shell (see page 8). Continued Figure 19 - Removing Air and Fuel Line Hoses (B150CEL Model Only) FUEL AND AIR LINE REPLACEMENT AND PROPER ROUTING 1. Remove upper shell (see page 8). 2. Remove side cover screws using 5/16" nut driver. 3. Remove side cover. 4. Inspect fuel and air line hoses for cracks and/or holes. If fuel line hose is damaged, disconnect from nozzle adapter (see Fig- ure 17, 18, or 19) and from fuel filter (see page 8). If air line hose is damaged, dis- connect from nozzle adapter (see Figure 17, 18, or 19) and from barb fitting on pump end cover (see Figure 22). 5. Install new air and/or fuel line. Attach one end of air line hose to barb fitting on pump end cover (see Figure 22) and the other end to nozzle adapter (see Figure 17, 18, or 19). Attach one end of fuel line hose to fuel filter (see page 8) and the other end to nozzle adapter (see Figure 17, 18, or 19). For B35CEL and B70CEL model heat- ers, route air and fuel lines approxi- mately as shown in Figure 17. Note: Hoses are not to be touching pho- tocell bracket. For B100CEL model heater, route air and fuel lines approximately as shown in Figure 18. Note: Hoses are not to be touching pho- tocell bracket. For B150CEL model heater, route air and fuel lines approximately as shown in Figure 19. Note: Hoses are not to be touching pho- tocell bracket 6. Replace side cover. 7. Replace upper shell and fan guard (see page 8). Figure 22 - Air Hose to Barb FItting Nozzle Face Nozzle Nozzle Seal Nozzle Adapter Air Line Fitting Fuel Line Fitting Nozzle/ Adapter Assembly Combustion Chamber Fuel Line Hose Nozzle/ Adapter Assembly Combustion Chamber Photocell Bracket Air Line Hose Fuel Line Hose Nozzle/ Adapter Assembly Combustion Chamber Air Line Hose Photocell Bracket Figure 17 - Removing Air and Fuel Line Hoses (B35CEL and B70CEL Models Only) Fuel Line Hose Nozzle/ Adapter Assembly Combustion Chamber Photocell Bracket Air Line Hose Barb Fitting Air Hose Pump End Cover Nozzle Adapter Bracket Nozzle Adapter Bracket Nozzle Adapter Bracket

R PUMP ROTOR (Procedure if Rotor is Binding) 1. Remove upper shell (see page 8). 2. Remove filter end cover screws using 5/16" nut-driver. 3. Remove filter end cover and air filters. 4. Remove pump plate screws using 5/16" nut-driver. 5. Remove pump plate. 6. Remove rotor, insert, and blades. 7. Check for debris in pump. If debris is found, blow out with compressed air. 8. Install insert and rotor. 9. Check gap on rotor. Adjust to .076/.101 mm (.003"/.004") if needed (see Fig- ure 25). Note: Rotate rotor one full turn to ensure the gap is .076/.101 mm (.003"/.004") at tightest position. Adjust if needed. 10. Install blades, pump plate, air filters, and filter end cover. 11. Replace fan guard and upper shell. 12. Adjust pump pressure (see page 10). Note: If rotor is still binding, proceed as follows. 13. Perform steps 1 through 6 above. 14. Place fine grade sandpaper (600 grit) on flat surface. Sand rotor lightly in “figure 8” motion four times (see Fig- ure 26). 15. Reinstall insert and rotor. 16. Perform steps 10 through 12 above. Figure 23 - Rotor Location, B35CEL and B70CEL Models Figure 24 - Rotor Location, B100CEL and B150CEL Models Insert Blade Rotor Pump Plate Air Intake Filter Air Output Filter Pump Plate Insert Rotor Blade Filter End Cover Air Intake Filter Air Output Filter Fan Guard Fan Guard Filter End Cover Figure 26 - Sanding Rotor Figure 25 - Gap Adjusting Screw Locations SERVICE PROCEDURES Continued Gap Adjusting Screw Gap Adjusting Screw Blade .076/.101 mm (.003"/.004") Gap Measured With Feeler Gauge Rotor Sandpaper

shaft before removing motor from heater. The weight of the motor resting on the fan could damage the fan pitch. 1. Remove upper shell (see page 8). 2. Use 1/8" allen wrench to loosen set- screw which holds fan to motor shaft. 3. Slip fan off motor shaft. 4. Clean fan using a soft cloth moistened with kerosene or solvent. 5. Dry fan thoroughly. 6. Replace fan on motor shaft. Place fan hub flush with end of motor shaft (see Figure 28). 7. Place setscrew on flat of shaft. Tighten setscrew firmly 4.5 to 5.6 N-m (40 to 50 in-lbs). 8. Replace fan guard and upper shell. Motor Shaft Setscrew Figure 27 - Fan, Motor Shaft, and Setscrew Location Motor Shaft Fan Setscrew Figure 28 - Fan Cross Section Fan Flush SERVICE PROCEDURES Continued Unacceptable Acceptable WARNING: Unplug heater before servicing. Remove Old Assembly 1. Using the 5/16" nut driver or socket wrench, remove the four side cover screws (see Figure 29). 2. Disconnect the nine wires from the ignition control assembly. 3. Using needle nose pliers, squeeze the tab on the printed circuit board support and lift up on the edge of the ignition control assembly (see Figure 30). Repeat this for the other four printed circuit board sup- ports then remove the assembly. CAUTION: Ignition control assembly contains electrostatic components. Handle the assem- bly by the edges of the printed circuit board. Do not touch any of the quick connect terminals or electronic components. Figure 29 - Removing Cover Side Cover Figure 30 - Removing Circuit Board Side Cover Ignition Control Assembly Printed Circuit Board Supports (5) Installing the New Assembly 1. Align the five holes in the assembly with the five printed circuit board sup- ports in the side cover. 2. Holding the assembly by the edges of the printed circuit board, apply down- ward pressure until all five tabs on the printed circuit board supports springlock into place. Pull up on assembly to verify this (see Figure 31). 3. Connect the nine wire leads to the ignition control assembly as shown in the wiring diagram on page 23. Figure 31 - Attaching Circuit Board to Tabs CAUTION: Double check connections. Connecting igni- tion control assembly wrong could result in damage to the ignition control assembly and/ or other components in the heater assembly. 4. Using the 5/16" nut driver or socket wrench reinstall side cover to heater. Tighten screws until snug. Do not over torque! Unacceptable Acceptable IGNITION CONTROL ASSEMBLY

R 1 2 3 4 5 6 7 8 9 10 11 12 13 16 9-2 9-1 9-3 9-4 9-5 17 18 19 20 21 22 23 24 26 27 28 29 30 34 35 36 32 33 9-6 15 14 31 42 41 43 40 38 37 39 25 ILLUSTRATED PARTS BREAKDOWN B35CEL MODEL Motor and Pump Assembly 12-11 12-18 12-17 12-16 12-15 12-14 12-13 12-12 12-10 12-1 12-3 12-4 12-5 12-6 12-7 12-8 12-9 12-2 12-19

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 4110.130 Handle 1 2 4103.842 Upper Shell 1 3 4160.602 Screw 2 4 4109.590 Screw/Lockwasher 6 5 4100.638 Combustion Chamber 1 6 4103.529 Screw, #6-32 x 3/8" 2 7 4100.657 Photocell Bracket 1 8 4103.590 Photocell Assembly 1 9 ∗∗ Burner Strap Assembly 1 9-1 4100.648 Nozzle Assembly 1 9-2 4110.132 Ignitor Kit 1 9-3 4100.664 Nozzle Adapter 1 9-4 4109.560 Nozzle Adapter Bracket 1 9-5 4100.669 Screw, #6-32 x 7/8" 1 9-6 4100.660 Belleville Washer 1 10 4110.124 Screw/Lockwasherr 2 11 4100.662 Fan 1 12 ∗∗ Motor and Pump Assembly 1 12-1 4106.098 Motor 1 12-2 4101.532 Pump Body 1 12-3 4108.635 Insert 1 12-4 4103.441 Rotor 1 12-5 4109.724 Pump End Cover 1 12-6 4109.736 Lint Filter 1 12-7 4109.690 Intake Filter 1 12-8 4109.674 Filter End Cover 1 12-9 4108.528 Screw, #10-32 x 1" 3 12-10 4102.133 Adjusting Screw 1 12-11 4102.141 Pressure Relief Spring 1 12-12 4102.125 Plug 1 12-13 4108.379 Steel Ball, 1/4" Diameter 1 12-14 4109.708 Output Filter 1 12-15 4108.536 Screw #10-32 x 1 1/8" 6 12-16 4100.661 Nylon Elbow, 90° 1 12-17 4101.666 Blade 4 12-18 4108.590 Screw, #10-32 x 3/4" 2 12-19 4100.666 Plastic Cap 1 13 4103.685 Fan Guard 1 KEY PART NO. NUMBER DESCRIPTION QTY. ∗∗ Not available as an assembly; order parts separately 14 4110.038 Power Cord 1 15 4150.528 Strain Relief Bushing 1 16 4108.486 Hex Lock Nut, 1/4-20 2 17 4110.124 Screw/Lockwasher, 1/2" 4 18 4150.553 Rubber Bumper 2 19 4100.635 Side Cover 1 20 4110.187 Motor Bracket 1 21 4101.151 Bushing 1 22 4104.170 Clip Nut 6 23 4101.152 Bushing 1 24 4110.124 Screw/Lockwasher, 1/2" 6 25 4110.133 Screw 1 26 4100.636 Lower Shell 1 27 4104.147 Rubber Airline 1 28 4109.567 Fuel Line 1 29 4110.135 Fuel Filter 1 30 4100.541 Rubber Bushing 1 31 4100.656 Nylon Locknut 1 32 4100.654 PCB Support 5 33 4110.142 Ignition Control Assembly 1 34 4103.891 Fuel Cap (Includes Gasket) 1 35 4110.136 Fuel Tank 1 36 4100.671 Shell Heat-Shield 1 37 4110.134 Nut 3 38 4110.075 Vinyl Foam Gasket 1 39 4100.527 Lockwasher 1 40 4110.036 Wire Assembly (Brown) 1 41 4100.667 ON/OFF Switch 1 42 4104.336 Switch Cover 1 43 4110.037 Wire Assembly (White) 1 PARTS AVAILABLE - NOT SHOWN 4105.292 Filler Neck Screen 1 4110.049 Wire Tie 1 4110.138 Tradename Decal 2 4110.139 Decal Package 1 4110.137 Ignition Control Assembly Fuse 1

R 1 2 3 4 5 6 7 8 9 10 11 12 13 16 9-2 9-1 9-3 9-4 9-5 17 18 19 20 21 22 23 24 26 27 28 29 30 34 35 36 32 33 9-6 15 14 31 42 41 43 40 38 37 39 25 ILLUSTRATED PARTS BREAKDOWN B70CEL MODEL Motor and Pump Assembly 12-11 12-18 12-17 12-16 12-15 12-14 12-13 12-12 12-10 12-1 12-3 12-4 12-5 12-6 12-7 12-8 12-9 12-2 12-19

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 4110.130 Handle 1 2 4103.842 Upper Shell 1 3 4160.602 Screw 2 4 4109.590 Screw/Lockwasher 6 5 4100.639 Combustion Chamber 1 6 4103.529 Screw, #6-32 x 3/8" 2 7 4100.657 Photocell Bracket 1 8 4103.590 Photocell Assembly 1 9 ∗∗ Burner Strap Assembly 1 9-1 4100.647 Nozzle Assembly 1 9-2 4110.132 Ignitor Kit 1 9-3 4100.664 Nozzle Adapter 1 9-4 4109.560 Nozzle Adapter Bracket 1 9-5 4100.669 Screw, #6-32 x 7/8" 1 9-6 4100.660 Belleville Washer 1 10 4110.124 Screw/Lockwasherr 2 11 4100.662 Fan 1 12 ∗∗ Motor and Pump Assembly 1 12-1 4100.651 Motor 1 12-2 4101.317 Pump Body 1 12-3 4108.635 Insert 1 12-4 4108.627 Rotor 1 12-5 4109.724 Pump End Cover 1 12-6 4109.736 Lint Filter 1 12-7 4109.690 Intake Filter 1 12-8 4109.674 Filter End Cover 1 12-9 4108.528 Screw, #10-32 x 1" 3 12-10 4102.133 Adjusting Screw 1 12-11 4102.141 Pressure Relief Spring 1 12-12 4102.125 Plug 1 12-13 4108.379 Steel Ball, 1/4" Diameter 1 12-14 4109.708 Output Filter 1 12-15 4108.528 Screw #10-32 x 1" 6 12-16 4100.661 Nylon Elbow, 90° 1 12-17 4101.200 Blade 4 12-18 4108.588 Screw, #10-32 x 5/8" 2 12-19 4100.666 Plastic Cap 1 13 4103.685 Fan Guard 1 KEY PART NO. NUMBER DESCRIPTION QTY. ∗∗ Not available as an assembly; order parts separately 14 4110.038 Power Cord 1 15 4150.528 Strain Relief Bushing 1 16 4108.486 Hex Lock Nut, 1/4-20 2 17 4110.124 Screw/Lockwasher, 1/2" 4 18 4150.553 Rubber Bumper 2 19 4100.635 Side Cover 1 20 4110.187 Motor Bracket 1 21 4101.151 Bushing 1 22 4104.170 Clip Nut 6 23 4101.152 Bushing 1 24 4110.124 Screw/Lockwasher, 1/2" 6 25 4110.133 Screw 1 26 4100.636 Lower Shell 1 27 4104.147 Rubber Airline 1 28 4109.567 Fuel Line 1 29 4103.875 Fuel Filter 1 30 4100.541 Rubber Bushing 1 31 4100.656 Nylon Locknut 1 32 4100.654 PCB Support 5 33 4110.142 Ignition Control Assembly 1 34 4103.891 Fuel Cap (Includes Gasket) 1 35 4110.140 Fuel Tank 1 36 4100.671 Shell Heat-Shield 1 37 4110.134 Nut 3 38 4110.075 Vinyl Foam Gasket 1 39 4100.527 Lockwasher 1 40 4110.036 Wire Assembly (Brown) 1 41 4100.667 ON/OFF Switch 1 42 4104.336 Switch Cover 1 43 4110.037 Wire Assembly (White) 1 PARTS AVAILABLE - NOT SHOWN 4105.292 Filler Neck Screen 1 4110.049 Wire Tie 1 4110.138 Tradename Decal 2 4110.141 Decal Package 1 4110.137 Ignition Control Assembly Fuse 1

R 1 2 3 23 19 9 10 16 11 12 15 25 27 24 28 20 22 21 30 31 17 14 14 35 36 32 26 13 18 5 4 6 7 8 7-2 7-1 7-5 7-4 7-3 7-6 43 42 41 33 34 37 40 39 44 38 29 ILLUSTRATED PARTS BREAKDOWN B100CEL MODEL Motor and Pump Assembly 10-1 10-2 10-3 10-4 10-5 10-6 10-7 10-8 10-9 10-10 10-11 10-12 10-13 10-14 10-15 10-16 10-17 10-13

1 7-1 4100.645 Nozzle Assembly 1 7-2 4110.132 Ignitor Kit 1 7-3 4100.669 Screw, #6-32 x 7/8" 1 7-4 4109.560 Nozzle Adapter Bracket 1 7-5 4100.663 Nozzle Adapter 1 7-6 4100.660 Belleville Washer 1 8 4110.124 Screw/Lockwasher, 1/2" 2 9 4105.062 Fan 1 10 ** Motor and Pump Assembly 1 10-1 4100.652 Motor 1 10-2 4101.317 Pump Body 1 10-3 4108.588 Screw, #10-32 x 5/8" 2 10-4 4108.635 Rotor Insert 1 10-5 4108.627 Pump Rotor 1 10-6 4101.325 Pump End Cover 1 10-7 4101.358 Intake Filter 1 10-8 4108.643 Filter End Cover 1 10-9 4108.379 Steel Ball, 1/4" Diameter 1 10-10 4102.141 Relief Spring 1 10-11 4102.133 Adjusting Screw 1 10-12 4102.125 Plug 1 10-13 4108.528 Screw, #10-32 x 1" 10 10-14 4101.341 Output Filter 1 10-15 4101.333 Lint Filter 1 10-16 4104.118 Barb Fitting 1 10-17 4101.200 Blade 4 11 4150.553 Rubber Bumper 2 12 4110.186 Motor Mounting Bracket 2 12 4100.649 Button Plug 1 14 4110.142 Igniton Control Assymbly 1 PARTS LIST B100CEL Model 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. ** Not available as an assembly; order parts separately KEY PART NO. NUMBER DESCRIPTION QTY. 15 4108.486 Hex Lock Nut, 1/4-20 2 16 4103.659 Fan Guard 1 17 4100.632 Drain Plug (Includes “o” Ring) 1 18 4110.070 Button Plug 1 19 4110.032 Fuel Line 1 20 4100.630 Fuel Filter 1 21 4110.147 Fuel Line Tube 1 22 4100.541 Rubber Bushing 1 23 4110.147 Airline 1 24 4100.637 Lower Shell 1 25 4101.112 Bushing 1 26 4101.232 Bushing 1 27 4110.124 Screw/Lockwasher, 1/2" 6 28 4104.170 Clip Nut 8 29 4110.133 Screw, 1 30 4110.149 Fuel Tank 1 31 4103.891 Fuel Cap (Includes Gasket) 1 32 4100.654 P.C. Board Support 5 33 4150.528 Strain Relief Bushing 1 34 4110.038 Power Cord 1 35 4100.670 Side Cover 1 36 4110.124 Screw/Lockwasher, 1/2" 4 37 4100.656 Nylon Locknut 1 38 4110.036 Wire Assembly (Brown) 1 39 4100.667 ON/OFF Switch 1 40 4104.336 Switch Cover 1 41 4100.527 Lockwasher, #10 1 42 4110.134 Nut 3 43 4103.850 Edge Liner 1 44 4110.037 Wire Assembly (White) 1 PARTS AVAILABLE - NOT SHOWN 4105.292 Filler Neck Screen 1 4110.049 Wire Tie 1 4110.138 Tradename Decal 2 4110.146 Decal Package 1 4110.137 Ignition Control Assembly Fuse 1

R 1 2 3 23 19 9 10 16 11 12 15 25 27 24 28 20 22 21 30 31 17 14 14 35 36 32 26 13 18 5 4 6 7 8 7-2 7-1 7-5 7-4 7-3 7-6 43 42 41 33 34 37 40 39 44 38 29 ILLUSTRATED PARTS BREAKDOWN B150CEL MODEL Motor and Pump Assembly 10-1 10-2 10-3 10-4 10-5 10-6 10-7 10-8 10-9 10-10 10-11 10-12 10-18 10-14 10-15 10-16 10-17 10-13

1 7-1 4100.646 Nozzle Assembly 1 7-2 4110.132 Ignitor Kit 1 7-3 4100.669 Screw, #6-32 x 7/8" 1 7-4 4109.560 Nozzle Adapter Bracket 1 7-5 4100.663 Nozzle Adapter 1 7-6 4100.660 Belleville Washer 1 8 4110.124 Screw/Lockwasher, 1/2" 2 9 4105.062 Fan 1 10 ** Motor and Pump Assembly 1 10-1 4100.652 Motor 1 10-2 4101.532 Pump Body 1 10-3 4108.590 Screw, #10-32 x 3/4" 2 10-4 4108.635 Rotor Insert 1 10-5 4103.441 Pump Rotor 1 10-6 4101.325 Pump End Cover 1 10-7 4101.358 Intake Filter 1 10-8 4108.643 Filter End Cover 1 10-9 4108.379 Steel Ball, 1/4" Diameter 1 10-10 4102.141 Relief Spring 1 10-11 4102.133 Adjusting Screw 1 10-12 4102.125 Plug 1 10-13 4108.528 Screw, #10-32 x 1" 4 10-14 4101.341 Output Filter 1 10-15 4101.333 Lint Filter 1 10-16 4104.118 Barb Fitting 1 10-17 4101.666 Blade 4 10-18 4108.536 Screw, #10-32 x 11/8" 6 11 4150.553 Rubber Bumper 2 12 4110.186 Motor Mounting Bracket 1 13 4100.649 Button Plug 1 14 4110.142 Ignition Control Assembly 1 PARTS LIST B150CEL Model 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. ** Not available as an assembly; order parts separately KEY PART NO. NUMBER DESCRIPTION QTY. 15 4108.486 Hex Lock Nut, 1/4-20 2 16 4103.659 Fan Guard 1 17 4100.632 Drain Plug (Includes “o” Ring) 1 18 4110.070 Button Plug 1 19 4110.032 Fuel Line 1 20 4100.630 Fuel Filter 1 21 4110.147 Fuel Line Tube 1 22 4100.541 Rubber Bushing 1 23 4110.147 Airline 1 24 4100.637 Lower Shell 1 25 4101.112 Bushing 1 26 4101.232 Bushing 1 27 4110.124 Screw/Lockwasher, 1/2" 6 28 4104.170 Clip Nut 8 29 4110.133 Screw, 1 30 4110.149 Fuel Tank 1 31 4103.891 Fuel Cap (Includes Gasket) 1 32 4100.654 P.C. Board Support 5 33 4150.528 Strain Relief Bushing 1 34 4110.038 Power Cord 1 35 4100.670 Side Cover 1 36 4110.124 Screw/Lockwasher, 1/2" 4 37 4100.656 Nylon Locknut 1 38 4110.036 Wire Assembly (Brown) 1 39 4100.667 ON/OFF Switch 1 40 4104.336 Switch Cover 1 41 4100.527 Lockwasher, #10 1 42 4110.134 Nut 3 43 4103.850 Edge Liner 1 44 4110.037 Wire Assembly (White) 1 PARTS AVAILABLE - NOT SHOWN 4105.292 Filler Neck Screen 1 4110.049 Wire Tie 1 4110.138 Tradename Decal 2 4110.145 Decal Package 1 4110.137 Ignition Control Assembly Fuse 1

R WHEELS AND HANDLES B100CEL AND B150CEL MODELS KEY PART PART NO. NUMBER DESCRIPTION QTY. 1 4110.077 Handles 2 2 4110.144 Screw 8 3 4110.078 Wheel Support Frame 1 4 4110.143 Hex Nut, 8 5 4110.084 Wheel (2) 1 6 4110.085 Cap Nut 2 7 4110.078 Axle 1 1 2 3 5 6 4 7

10 (35,000) 20 (70,000) 30 (100,000) 44 (150,000) Fuel Use Only Kerosene or No. 1 Fuel Oil Fuel Tank Capacity (Liters/U.S. Gal.) 15.1/4.0 18.9/5.0 43.5/11.5 43.5/11.5 Fuel Consumption (Liters Per Hr./Gal. Per Hr.) 1.1/.28 1.97/.52 3.0/.79 4.1/1.1 Electric Requirements 230 V/50 Hz (Same All Models) Amperage (Normal Run) .8 1.0 1.2 1.2 Hot Air Output (CMM/CFM) 4/140 6.4/225 12/425 14.2/500 RPM 1425 2850 2850 2850 SPECIFICATIONS WIRING DIAGRAM (7) (2) (1) (8) (3) (4) (6) (N) (5) 1a 1 1b Power Plug 230 V/50Hz Ignition Control Green-Yellow Green-Yellow Ignitor Photocell White White Red Brown Brown Blue Blue Blue Blue ON/Off Switch Ignitor Ignitor Motor

R ACCESSORIES Purchase accessories from your local dealer. HEAVY DUTY WHEELS AND HANDLE KIT - 4103.925 For heavy duty applications. Makes your heater even more portable and convenient. For B35CEL and B70CEL models. AIR GAUGE KIT - 4109.427 For all models. Special tool to check pump pressure. STANDARD WHEELS AND HANDLE KIT - 4103.930 Makes heater even more portable and con- venient. Easy to assemble. For B35CEL and B70CEL models. A 008 IGNITION CONTROL ASSEMBLY/PHOTOCELL TESTER - 4106.058 Special tool used to test the ignition control assembly and photocell.

DESA Europe B.V. Innsbruckweg 144, 3047 AH Postbus 11158 3004 ED Rotterdam Holland Kerosene Portable Forced Air Heaters Model Numbers: B35CEL, B70CEL, B100CEL, B150CEL It is declared that these models conform to the Machinery Directive 98/37/EC, including 91/368/EEC and the Low Voltage Directive 73/23/EEC. It is further declared that these models conform to the EMC Directive 89/336/EEC, amended by 92/31/EEC and including EN50081-1 and EN50082-1. We declare that the models noted are in conformity. Company DESA Europe B.V. Name Augusto Millan Title Managing Director 23/05/02 — Rotterdam, Netherlands Date and Place Signature EC CONFORMITY DECLARATION

THOSE OF MERCHANTABILITY AND FITNESS FOR A PAR- TICULAR PURPOSE ARE LIMITED TO THE DURATION OF THIS EXPRESS WARRANTY. Any transportation charges, costs of installation, duty, taxes or any other charges whatsoever must be borne by the user. DESA International's obligation under this limited War- ranty shall not include any liability for direct, indirect, incidental, or consequential damage or delay. If requested by DESA International, Products or parts for which a warranty claim is made are to be returned transportation prepaid by user to the factory. Any improper use, including operation after discovery of defective or worn parts, operation beyond capacity, substi- tution of parts not approved by DESA International, or any alteration or repair by others in such manner as in DESA International's judgement affects the Product materially and adversely, shall void this Warranty. NO EMPLOYEE OR REPRESENTATIVE IS AUTHORIZED TO CHANGE THIS WARRANTY IN ANY WAY OR GRANT ANY OTHER WARRANTY UNLESS SUCH CHANGE IS MADE IN WRITING AND SIGNED BY AN OFFICER OF DESA INTERNATIONAL AT ITS HOME OFFICE. DESA International warrants new Products sold by it to be free from defects in material or workmanship for a period of one year after date of delivery to the first user and subject to the following conditions: DESA International's obligation and liability under this Warranty is expressly limited to repairing or replacing at DESA International's option, any parts which appear to DESA Interna- tional upon inspection to have been defective in material or workmanship when shipped from the factory. Such parts shall be provided at no cost to the user, at the business establishment of any factory authorized service center or the factory during regular working hours. The Warranty shall not apply to compo- nent parts or accessories of Products not manufactured by DESA International and which carry the warranty of the manu- facturer thereof, or to normal maintenance (such as pressure adjustments) or to normal maintenance parts (such as filters and spark plugs). Replacement or repair parts installed in the Product covered by this Warranty are warranted only for the remainder of this Warranty as if such parts were original compo- nents of said Product. DESA INTERNATIONAL MAKES NO OTHER EXPRESS WARRANTY. TO THE EXTENT PERMIT- TED BY LAW DESA INTERNATIONAL MAKES NO IMPLIED WARRANTY AND MAKES NO WARRANTY OF MER- CHANTABILITY OR FITNESS FOR ANY PARTICULAR PUR- CERTIFICATE OF GENERAL EQUIPMENT - LIMITED ONE YEAR WARRANTY WARRANTY SERVICE Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only Warranty applicable is our standard written Warranty. We make no other Warranty, expressed or implied. A Service Manual is available by writing to the Technical Service Department at: Corporate Headquarters 2701 Industrial Drive P.O. Box 90004 Bowling Green, Kentucky 42102-9004 U.S.A.