PORTABLE FORCED AIR HEATER
Contents
1. 3 Start heater see Operation page 5 Allow motor to reach full speed 4 Using a flat blade screwdriver adjust pressure Turn relief valve to right to increase the pressure Turn relief valve to left to decrease the pressure Set pump pressure at 5 3 PSI for 115 000 Btu models 5 4 PSI for both 150 000 Btu models and 155 000 Btu models and 5 6 PSI for 165 000 Btu models 5 Stop heater see Operation page 5 Remove pressure gauge Replace pres sure gauge plug in filter end cover Relief Valve Pressure Gauge Plug Figure 7 Pressure Gauge Plug Removal Pressure Gauge Figure 8 Adjusting Pump Pressure Continued 104019 115 000 150 000 155 000 and 165 000 Btu Hr PORTABLE FORCED AIR HEATERS SERVICE PROCEDURES Continued A WARNING Never service heater while it is plugged in op erating or hot Severe burns and electrical shock can occur FUEL FILTER 1 Remove side cover screws using 5 16 nut driver Remove side cover 3 Pull upper fuel line off fuel filter neck Carefully pry bushing fuel filter and lower fuel line 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 Fuel Fitter Bushing and Lower Fuel Line Upper Fuel Line Side Cover Figure 9 Fuel Filter Removal IGNITOR 1 Remove upper shell and fan guard see page 7 2 Remove fan see page 72. 3 Remove 4 side cover screws with a 5 16 nut driver Remove side cover see Figure 9 4 Disconnect ignitor wires yellow from ignition control assembly see Figure 10 Pull the ignitor wires up through the hole in the lower shell Disconnect fuel line hose and air line hose Remove photocell from photocell bracket see Figure 10 a 6 Remove combustion chamber Stand combustion chamber on end with nozzle adapter bracket on top see Fig ure 11 7 Remove ignitor screw with a 1 4 nut driver Carefully remove ignitor from nozzle adapter bracket A CAUTION Donotbendorstrike ignitor element Handle with care 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 10 Torque 8 to 15 in lbs Do not over torque 10 Replace combustion chamber 1i 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 13 Connect and route fuel line hose and air line hose to nozzle assembly See Fuel and Air Line Replacement and Proper Routing page 9 14 Replace photocell in photocell bracket 15 Replace fan see page 7 16 Replace fan guard and upper shell see page 7 Combustion Nozzle Chamber Adapter Bra
3. fuel line approximately as shown in Figure 12 Note Hoses are not to be touching pho tocell bracket For 150 155 and 165 000 Btu heaters route air and fuel line approximately as shown in Figure 13 Note Hoses are not to be touching pho tocell bracket Replace side cover 7 Replace upper shell and fan guard see page 7 Pump End Cover Air Hose Figure 16 Air Hose to Barb Fitting Continued 104019 115 000 150 000 155 000 and 165 000 Btu Hr PORTABLE FORCED AIR HEATERS SERVICE PROCEDURES Continued PUMP ROTOR Procedure if Rotor is Binding 1 2 13 14 15 Perform steps 10 through 12 above Remove upper shell see page 7 Remove filter end cover screws using 5 16 nut driver Remove filter end cover and air filters see Figure 17 Remove pump plate screws using 5 16 nut driver Remove pump plate Remove rotor insert and blades Check for debris in pump If debris is found blow out with compressed air Install insert and rotor Check gap on rotor Adjust to 003 004 if needed see Figure 18 Note Rotate rotor one full turn to in sure the gap is 003 004 at tightest position Adjust if needed Install blades pump plate air filters and filter end cover Replace fan guard and upper shell Adjust pump pressure see page 7 Note If rotor is still binding proceed as follows Perform steps 1 through 6 above Place fine grade sandpaper 60
4. Thermostat M27694 Adjusting Screw 1 Air Gauge Kit M22997 Plug 1 Fuel Tank Filter Screen M12461 31 Screw 10 32 x 1 10 Rotor Kit M22456 1 M22009 M8643 M12244 1 Output Filter 1 Filter Kit M11637 M12179 M12244 1 Mt1637 Lint Filter 1 M51150 01 M50820 02 Barb Fitting 1 Pump Kit M27694 M10993 1 M22997 M8 amp 643 Blade 4 M8940 M50631 Rubber Bumper 2 115 000 150 000 155 000 and 165 000 Btu Hr PORTABLE FORCED AIR HEATERS PARTS LIST WHEELS AND HANDLE PARTS LIST PARTS AVAILABLE NOT SHOWN KEY PART PART PART 2 NUMBER DESCRIPTION NUMBER DESCRIPTION HA2203 Handle 115 Btu 2 a saad 098493 01 General Information Decal HA2204 Handle 150 155 165 Btu 2 if equipped 097644 06 Tradename Decal B115 M12345 33 097204 16 097773 06 097643 01 097204 11 097773 02 097773 05 097644 08 097204 10 Tradename Decal R115 Tradename Decal REM115 Tradename Decal B150J Tradename Decal R155B Tradename Decal REM150E Tradename Decal REM155B Tradename Decal B165A Tradename Decal R165A Screw 10 24 x 1 3 4 8 B115 B150J B165A R115 REM115 R155B REM150E REM155B R165A 6 Wheel Support Frame 1 3 M12342 3 M12831 3 Wheel Support Frame 150 155 165 Btu Hex Nut 10 24 B115 B150J B165A 8 R115 REM115 R155B NTC 3C VNNMNAHYNYNANYND REM15
5. and lower shells together Lift upper shell off Remove fan guard Upper Figure 4 Upper Shell Removal FAN IMPORTANT Remove fan from motor 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 above 2 Use 1 8 Allen wrench to foosen set screw which holds fan to motor shaft 3 Slip fan off motor shaft 4 Clean fan using 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 5 7 Place setscrew on flat of shaft Tighten setscrew firmly 40 50 inch pounds 8 Replace fan guard and upper shell Setscrew Figure 5 Fan Cross Section AIR OUTPUT AIR INTAKE AND LINT FILTERS 1 Remove upper shell see Upper Shell Removal 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 5 6 Replace filter end cover 7 Replace fan guard and upper shell IMPORTANT Do not oil filters Air Intake Filter Filter End Cover Fan Guard Figure 6 Air Output Air intake and Lint Filters PUMP PRESSURE ADJUSTMENT 1 Remove pressure gauge plug from filter end cover see Figure 7 2 Install accessory pressure gauge part number HA 1180
6. be obtained free of charge Send a self addressed stamped envelope to the address listed below List the heater model number and the date located in the lower right corner of this page A service manual may be purchased from the address listed below Send a check for 5 00 payable to DESA International When writing for information regarding your heater be sure to include the model number and serial number as shown on the model plate Each Service Center is independently owned and operated We reserve the right to amend these specifications at any time without notice KEEP THIS WARRANTY Model No Serial No Date of Purchase To be filled in by purchaser UN 104019 01 NOT A UPC _ P O Box 90004 Bowling Green KY 42102 9004 For information write DESA International P O Box 90004 Bowling Green Kentucky 42102 9004 ATTN Customer Service Department When writing always include mode number and serial number 104019 01 Rev E 11 98
7. drain plug 3 Ifany debris is noted in old fuel add 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 and 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 A WARNING Never service heater while it is plugged in operating or hot Severe burns and electrical shock can occur item How Often How To Flush every 150 200 hours of operation or Fuel tank Air output and lint filters as needed Replace every 500 hours of operation or once a year See Storing Transporting or Shipping above See Air Output Air Intake and Lint Filters page 7 Air intake filter Wash and dry with soap an waterevery500 See Air Output Air Intake and Lint Filters hours of operation or replace as needed page 7 Fuel filter Clean twice a heating season orreplace as See Fuel Filter page 8 needed Ignitor No maintenance required Fan blades Clean each season or as needed See Fan page 7 Motor Not required permanently lubricated 104019 115 000 150 000 155 000 and 165 000 Btu Hr POR
8. igni tor and ignition control assembly Defective ignitor Defective ignition control assembly 6 7 8 Check electrical connections See Wir ing Diagram page 11 Replace ignitor see page 8 Replace ignition control assembly Heater ignites but ignition control assembly shuts heater off after a short period of time p A A w O o Pump pressure incorrect Dirty air intake air output and or lint filter Dirty fuel filter Obstruction in nozzle assembly Photocell assembly not properly in stalled not seeing the flame l 2 See Pump Pressure Adjustment page 7 See Air Output Air Intake and Lint Fil ters page 7 See Fuel Filter page 8 See Nozzle Assembly page 9 Make sure photocell boot is properly seated in bracket A WARNING High voltage Dirty photocell lens Bad electrical connection between pho tocell and ignition control assembly Defective photocell Defective ignition contro assembly www desatech com Clean photocell lens Check electrical connections See Wir ing Diagram page 11 Replace photocell Replace ignition control assembly yA yer 6 104019 OWNER S MANUAL SERVICE PROCEDURES A WARNING Never service heater while it is plugged in op erating or hot Severe burns and electrical shock can occur UPPER SHELL REMOVAL i Remove screws along each side of heater using 5 16 nut driver These screws attach upper
9. 0 REM155B R165A 6 097896 04 Wheel Master and Remington 2 097896 01 Wheel Reddy 2 M28526 Cap Nut 2 M51015 01 Axle 115 Btu 1 M16801 2 Axle 150 155 165 Btu 1 CD 14 104019 OWNER S MANUAL REPLACEMENT PARTS Note Use only original replacement parts This will protect your warranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call DESA International s Techni cal Service Dept at 1 800 323 5190 When calling DESA International have ready your name your address model number of your heater how heater was malfunctioning purchase date Usually we will ask you to return the defec tive part to the factory PARTS NOT UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call DESA International s Parts De partment at 1 800 972 7879 for referral in formation Parts Centrals are listed in the Authorized Service Center booklet supplied with heater When calling DESA International have ready e model number of your heater the replacement part number TECHNICAL SERVICE You may have further questions about op eration or troubleshooting If so contact DESA International s Technical Service Dept at 1 800 323 5190 You can also visit DESA International s technical services w
10. 0 grit on flat surface Sand rotor lightly in figure 8 motion four times see Fig ure 19 Reinstall insert and rotor Pump Plate Air Intake Filter Filter End Air Output Filter Fan Guard Figure 17 Rotor Location Gap Adjusting Screw ove A KEE 003 004 Gap Measured LP With Feeler Gauge oO A EE Rotor Gap Adjusting Screw Figure 18 Gap Adjusting Screw Locations Sandpaper 2 Figure 19 Sanding Rotor IGNITION CONTROL ASSEMBLY Procedure for Replacing Fuse A WARNING High Voltage l Unplug heater 2 Remove side cover screws 4 using 5 16 nut driver to expose ignition con trol assembly 3 Remove fuse cover see Figure 20 Remove fuse from fuse clips 5 Replace fuse with fuse of the same type and rating GMA 10 Do not substi tute a fuse with a higher current rating 6 Replace fuse cover 7 Replace side cover Fuse Figure 20 Replacing Fuse 104019 OWNER S MANUAL WIRING DIAGRAM Power Plug 120V 60Hz E Motor Return Photocell eT Photocell Figure 21 Wiring Diagram SPECIFICATIONS Output Rating Btu Hr 115 000 150 000 155 000 165 000 Fuel Use Only Kerosene or No 1 Fuet Oil Fuel Tank Capacity U S Gal 9 0 13 5 13 5 13 5 Fuel Consumption Gal Per Hr 85 1 1 1 14 1 2 Electric Requirements 120 V 60 Hz Amperage Normal Run 3 6 3 6 3 6 3 6 Hot Air Output CFM 490 550 550 575 Motor RPM 3440 3440 3440 3440 Motor HP 1 5 1
11. 104019 OWNER S MANUAL OPERATION AX WARNING Review and un 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 three prong grounded extension cord Exten sion cord must be at least six feet long Extension Cord Wire Size Re quirements e 6to 10 feet long use 18 AWG rated cord 11 to 100 feet long use 16 AWG rated cord 101 to 200 feet long use 14 AWG rated cord 5 Plug extension cord into standard 120 volt 60 hertz three hole grounded out let Note Ignitor will preheat for five seconds then heater will start TO STOP HEATER Unplug extension cord from outlet TO RESET HEATER 1 Unplug extension cord from outlet and wait 10 seconds two minutes if heater has been running 2 Plug extension cord into standard 120 volt 60 hertz three hole grounded out let Note Ignitor will preheat for five seconds then heater will start STORING TRANSPORTING OR SHIPPING Note If shipping transport companies re quire fuel tanks to be empty l 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
12. 5 1 5 1 5 Shipping Weight Approximate Pounds 58 67 67 67 Heater Weight without Fuel Approximate Pounds 49 56 56 56 104019 11 115 000 150 000 155 000 and 165 000 Btu Hr PORTABLE FORCED AIR HEATERS ILLUSTRATED a8 PARTS BREAKDOWN B115 R115 REM115 B150J R155B REM150E REM155B R165A B165A 12 104019 OWNER S MANUAL 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 PARTS LIST B115 R115 REM115 B150J R155B REM150E REM1558 R165A B165A KEY PART KEY PART NO NUMBER DESCRIPTION QTY NO NUMBER DESCRIPTION 098511 138 09851 1 66 098511 135 Upper Shell Yellow Upper Shell Black Upper Shell White See OPTIONAL ACCESSORIES Not available as an assembly 104019 101206 01 101695 01 104068 02 Motor Mounting Bracket Button Plug Ignition Control Assembly 1 1 1 1 100647 01 Screw 10 16 x 1 2 8 NTC 4C Hex Lock Nut 1 4 20 2 098512 54 Combustion Chamber 115 1 M51114 01 Fan Guard 1 098512 59 Combustion Chamber 150 155 1 M27417 Drain Plug Includes o Ring 1 098512 60 Combustion Chamber 165 1 099213 01 Button Plug 1 103971 01 Photoceil B
13. PORTABLE FORCED AIR HEATER OWNER S MANUAL Heater Sizes 115 000 150 000 155 000 and 165 000 Btu Hr H S I Series IMPORTANT Read and understand this manual before assembling start ing or servicing heater Improper use of heater can cause serious injury Keep this manual for future reference 115 000 150 000 155 000 and 165 000 Btu Hr PORTABLE FORCED AIR HEATERS SAFETY INFORMATION A 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 AX DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning re semble the flu with headaches dizziness and or nausea 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 preg nant women persons 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
14. TABLE FORCED AIR HEATERS TROUBLESHOOTING A WARNING Never service heater while it is plugged in operating or hot Severe burns and electrical shock can occur Note For additional help visit DESA International s technical service web site at www desatech com FAULT CONDITION Motor does not start five seconds after heater is plugged in POSSIBLE CAUSE l No power to heater REMEDY l Check circuit breaker in electrical panel AX WARNING High voltage Bad electrical connection between mo tor and ignition control assembly or ig nition control assembly and power cord Btown fuse on ignition control assembly Binding pump rotor Defective ignition control assembly Defective motor 2 ON tan Check all electrical connections See Wiring Diagram page 11 See Ignition Control Assembly page 10 If fan does not turn freely see Pump Rotor page 10 Replace ignition control assembly Replace motor Motor starts and runs but heater does not ignite oo No fuel in tank Pump pressure incorrect Dirty fuel filter Obstruction in nozzle assembly Water in fuel tank MmARWN Fill tank with kerosene See Pump Pressure Adjustment page 7 See Fuel Filter page 8 See Nozzle Assembly page 9 Drain and flush fuel tank with clean kerosene See Storing Transporting or Shipping page 5 A WARNING High voltage Bad electrical connection between
15. cket Ignitor Air Ignitor Line Wires Hose Fuel A i B Line Tha Hose Photocell lt Ignition Bracket Control Assembly Photocell Assembly Side Cover Figure 10 Disconnecting ignitor Wires from ignition Control Assembly ignitor Screw Washer _ Assembly ignitor Ignitor Element Photocell Nozzle Bracket Adapter Bracket Nozzle Adapter Combustion Bracket Opening Chamber Figure 11 ignitor Replacement 104019 OWNER S MANUAL SERVICE PROCEDURES Continued NOZZLE ASSEMBLY 1 Remove upper shell see page 7 2 Remove fan see page 7 3 Remove fuel and air line hoses from nozzle assembly see Figure 12 or 13 4 Turn nozzle assembly 1 4 turn to left and pull toward motor to remove see Figure 14 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 15 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 40 45 inch pounds See Figure 15 10 Attach nozzle assembly to burner strap 11 Attach fuel and airline hoses to nozzle assembly See Fuel and Air Line Re placement and Proper Routing 12 Replace fan see page 7 13 Replace fan guard and upper shell see page 7 Co
16. eb site at www desatech com 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 for referral information Parts Centrals are listed in the Authorized Service Center booklet supplied with heater DESA International P O Box 90004 Bowling Green KY 42102 9004 1 800 972 7879 Parts Department THERMOSTAT KIT HA1210 Keeps your building at the temperature you select day and night Helps economize on fuel AIR GAUGE KIT HA1180 Special tool to check pump pressure IGNITION CONTROL ASSEMBLY PHOTOCELL TESTER HA1170 Special tool used to test the ignition control assembly and photocell 104019 WARRANTY AND REPAIR SERVICE 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 This warranty covers only the cost of parts and labor required to restore the product to proper operating condition Transportation and incidental costs associ ated with warranty repairs are not reimbursable under this warranty Warranty service is available only through authorized dealers and ser
17. er 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 10 feet It is further rec ommended that these enclosure materi als be of a fire retardant nature These enclosure materials shall be securely fas tened to prevent them from igniting or from upsetting the heater due to wind action Use only in well vented areas Before using heater provide at least a three square foot opening of fresh outside air for each 100 000 Btu Hr of rating This heater produces carbon monoxide which is listed by the State of California as a reproductive toxin under Proposition 65 Use only in places free of flammable va pors or high dust content e Use only the electrical voltage and fre quency specified on model plate Use only a three prong grounded exten sion cord e Minimum heater clearances from com bustibles Outlet 8 Ft Sides 4 Ft Top 4 Ft Rear 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 o
18. f heater Never move handle refuel or service a hot operating or plugged in heater Never attach duct work to front or rear of heater Approved by the New York City Fire Department under certificate of approval 4803 4860 4908 or 4909 To be used only at construction sites in accor dance with applicable New York City Codes Regulations Rules Directives Permits etc UNPACKING 1 Remove all packing items applied to heater for shipment 2 Remove all items from carton 3 Check items for shipping damage If heater is damaged promptly inform dealer where you bought heater cc e a aaa 2 104019 ASSEMBLY These models are furnished with wheels and a front handle Some models are furnished with a rear handle also Wheels handle s and the mounting hardware are found in the shipping carton Tools Needed e 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 1 Hot Air Outlet Fuel Tank Flange Wheel Support Frame Wheel Figure 1 Wheel and Handle Assembly 104019 Front Handie OA Ve OWNER S MANUAL Place cap nuts on axle ends Gently tap with hammer to secure Place heater on wheel support frame Make sure air inlet end rear of heater is over wheels Line up h
19. mbustion Chamber Burner Strap Air Line Hose Adapter Assembly Fuel Line Photocell Hose Bracket Figure 12 Removing Air and Fuel Line Hoses 115 000 Btu Hr Models Only Combustion Chamber Burner Strap Photocell Adapter Assembly Fuel Line Hose Figure 13 Removing Air and Fuel Line Hoses 150 155 and 165 000 Btu Hr Models Only Combustion Chamber Nozzle Adapter Assembly Figure 14 Removing Nozzle Adapter Assembly Nozzle Face Nozzle Seal Vie SSi Nozzle Adapter Nozzle Air Line Fitting Fuel Line Fitting Figure 15 Nozzle and Nozzle Adapter FUEL AND AIR LINE REPLACEMENT AND PROPER ROUTING 1 Remove upper sheli see page 7 2 Remove side cover screws using 5 16 nut driver Remove side cover Inspect fuel and air line hoses for cracks and or holes If fuel line hose is dam aged disconnect from nozzle adapter see Figure 12 or 13 and from fuel fil ter see page 8 If air line hose is dam aged disconnect from nozzle adapter see Figure 12 or 13 and from barb fit ting on pump end cover see Figure 16 5 Install new air and or fuel line Attach one end of air line hose to barb fitting on pump end cover see Figure 16 and the other end to nozzle adapter see Figure 12 or 13 Attach one end of fuel line hose to fuel filter see page 8 and the other end to nozzle adapter see Figure 12 or 13 For 115 000 Btu heater route air and
20. oles on fuel tank flange with holes on wheel sup port frame Place front handle and rear handle if provided on top of fuel tank flange Insert screws through handle s fuel tank flange and wheel support frame Attach nut finger tight after each screw is inserted After all screws are inserted tighten nuts firmly SS Rear Handle Air Inlet ASN Extended Hub Axle 115 000 150 000 155 000 and 165 000 Btu Hr PORTABLE FORCED AIR HEATERS PRODUCT IDENTIFICATION Hot Air Outlet Lower Shell Fuel Cap Side Cover Ignition Control Assembly assembly on inside of side cover Figure 2 Upper Shell Fan Guard Fuel Tank Power Cord THEORY OF OPERATION The Fuel System The air pump forces air through the air line The air is then pushed through the 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 The fan pushes air into and around the combustion chamber This air is heated and provides a stream of clean hot air Combustion Chamber Ignitor Clean Heated Air Out Fuet Nozzle Fuel lt L Air For Fuel System ian Figure 3 Cross Section Operational View And Heating The Ignition System The ignition con trol assembly provides power to the ignitor This ignites the fuel air mixture in the com bustion chamber The Flame Out Control System This system causes the heater to sh
21. paint thinners alco hol or other highly flammable fuels Fueling a Personnel involved with fueling shall be qualified and thoroughly familiar with the manufacturer s instructions and applicable federal state and lo cal regulations regarding the safe fu eling 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 al fuel lines and fuel line connections shall be inspected for leaks Any leaks shall be repaired prior to returning the heater to service e Atno 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 25 feet from heaters torches welding equipment and similar sources of ignition excep tion the fuel reservoir integral with the heater unit g Whenever possible fuel storage shall be confined to areas where floor pen etrations 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 federal state or local au thority having jurisdiction e Never use heater where gasoline paint thinner or other highly flammable vapors are present Follow all local ordinances and codes when using heat
22. racket 115 1 M51345 06 Fuel Line 1 103154 05 Photocell Bracket 150 155 165 1 M51150 01 Fuel Filter 1 M10908 2 Screw 6 32 x 3 8 2 M51151 01 Fuel Line Tube 115 1 M16656 24 Photocell Assembly 1 M51151 02 Fuel Line Tube 150 155 165 1 ats Burner Head Assembly 1 M10990 3 Rubber Bushing 1 100735 19 Nozzle Assembly 115 1 M50814 03 Airline 1 100735 20 Nozzle Assembly 150 155 1 098511 140 Lower Shell Yellow 1 100735 21 Nozzle Assembly 165 1 098511 137 Lower Shell White 1 102548 03 Ignitor Kit 1 098511 82 Lower Shell Black 1 104023 01 Assembly Screw Washer 1 M50104 03 Bushing 2 102336 01 Nozzle Adapter Bracket 1 M50104 01 Bushing 2 104054 01 Nozzle Adapter 1 M11084 27 Screw 10 16 x 1 2 6 M11084 27 Screw 10 16 x 1 2 2 M11271 8 Clip Nut 8 097293 01 Fan 115 1 M10908 14 Screw 8 32 x 3 8 1 102042 01 Fan 150 155 165 1 098513 21 Fuel Tank 115 1 i Motor and Pump Assembly 1 098513 55 Fuel Tank 150 155 165 1 102001 21 Motor 1 097702 01 Fuel Cap Includes Gasket 1 079975 02 Pump Body 1 102349 01 P C Board Support 5 FHPF3 5C Screw 10 32 x 5 8 2 M11143 1 Strain Relief Bushing 1 M22009 Rotor Insert 1 098219 19 Power Cord 1 M22456 1 Pump Rotor 1 M51077 09AA Side Cover 1 M50545 Pump End Cover 1 M11084 27 Screw 10 16 x 1 2 4 M12179 intake Filter 1 103814 01 Wire Tie Not Shown 1 M16545 Filter End Cover 1 M8940 Steel Ball 1 4 Diameter 1 M10993 1 Relief Spring 1 Hang up
23. ut down if the flame goes out Air Intake Filter Cool Air In Air Output Fitter Ignition Control Assembly lt A Fuel Air Line To Burner Air For Combustion FUELS AX WARNING Use only kerosene or No 1 fuel oil to avoid risk of fire or explosion Never use gaso line naphtha paint thinners al cohol 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 a clogged fuel filter and or nozzle IMPORTANT Use a KEROSENE ONLY storage container Be sure storage container is clean Foreign matter such as rust dirt or water will cause the ignition control assembly to shut down the heater Foreign matter may also require you to clean fuel system often VENTILATION A Follow the minimum fresh outside air ventilation require ments If proper fresh outside air ventilation is not provided car bon monoxide poisoning can occur Provide proper fresh out side air ventilation before run ning heater Provide at least a three square foot opening of fresh outside air for each 100 000 Btu Hr rating Provide extra fresh air if more heat ers are being used Example A 115 000 Btu Hr heater re quires one of the following atwo car garage door 16 feet wide open ing raised three inches a single car garage door 9 feet wide opening raised five inches two 30 inch wide windows raised 8 2 inches
24. vice centers This warranty does not cover defects resulting from misuse abuse negligence accidents lack of proper maintenance normal wear alteration modification tampering contaminated fuels repair using improper parts or repair by anyone other than an authorized dealer or service center Routine maintenance is the responsibility of the owner THIS EXPRESS WARRANTY IS GIVEN IN LIEU OF ANY OTHER WARRANTY EITHER EX PRESSED OR IMPLIED INCLUDING WARRAN TIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE DESA International assumes no responsibility for in direct incidental or consequential damages Some states do not allow the exclusion or limitation of incidental or consequential damages or limitations or exclusions may not apply to you This Limited War ranty gives you specific legal rights and you may also have other rights which vary from state to state DESA lll Corporate Headquarters 2701 Industrial Drive WARRANTY SERVICE Should your heater require service return it to your nearest authorized service center Proof of purchase must be presented with the heater The heater will be inspected A defect may be caused by faulty materials or workman ship If so DESA Internationa will repair or replace the heater without charge REPAIR SERVICE Return the heater to your nearest authorized service center Repairs not covered by the warranty will be billed at standard prices Illustrated parts lists can
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