Desa BTU/HR User's Manual
Contents
1. 113282 01C www desatech com 9 SERVICE PROCEDURES Continued 6 Replace filter end cover 7 Replace fan guard and upper shell IMPORTANT Do not oil filters Air Intake Filter Filter End Figure 15 Air Output Air Intake and Lint Filters 110 115 155 165 200 Models Only PUMP PRESSURE ADJUSTMENT 1 Remove pressure gauge plug from filter end cover see Figure 16 2 Install accessory pressure gauge part num ber HA1180 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 correct pressure for each model see Figure 17 5 Remove pressure gauge Replace pressure gauge plug in filter end cover Pressure Gauge Plug Figure 16 Pressure Gauge Plug Removal 40 55 60 70 Models Shown Pump Model Pressure 50 34 PSI Pressure 55 3 4PsI Gauge SSS 60 3 4 PSI s 70 4 7PSI 4 110 5 1 PSI Nlo 115 51 PSI CG 155 5 2PSI Z Figure 17 Adjusting Pump Pressure 40 50 55 60 70 Models Shown FUEL FILTER 1 Remove side cover screws using 5 16 nut driver Remove side cover Pull upper fuel line off fuel filter neck see Figure 18 or 19 Carefully pry bushing fuel filter and lower fuelline 110 115 155 165 200 Models only out of fuel tank see Figure 19 Wash fuel filter with clean fuel and replace in tank Attach upper2. o Ring 107878 02 Button Plug M51345 06 Fuel Line 106896 01 Fuel Filter M51151 01 Fuel Line Tube 110 115 M51151 02 Fuel Line Tube 155 165 M10990 3 Rubber Bushing M50814 03 Airline 098511 293 Lower Shell Service Part Will Be Black M50104 06 Bushing M50104 01 Bushing M11084 26 Screw 10 16 x 3 8 M11271 8 Clip Nut M10908 14 Screw 48 32 x 3 8 108088 11 Fuel Tank Metal Filler Neck 110 115 108088 10 Fuel Tank Metal Filler Neck 155 165 113279 02 Fuel Tank Plastic Filler Neck 110 115 113279 03 Fuel Tank Plastic Filler Neck 155 165 097663 02 Fuel Cap w Gauge includes Gasket 110 115 Use with Fuel Tank 108088 11 097663 03 Fuel Cap w Gauge includes Gasket 155 165 Use with Fuel Tank 108088 10 113280 02 Fuel Cap w Gauge includes Gasket 110 115 Use with Fuel Tank 113279 02 113280 03 Fuel Cap w Gauge includes Gasket 110 115 Use with Fuel Tank 113279 03 155 165 102349 01 P C Board Support M11143 1 Strain Relief Bushing 113065 01 Power Cord M51077 18 Side Cover M11084 26 Screw 10 16 x 3 8 104460 01 Thermostat Knob 104458 01 Thermostat WLE 2 Lock Washer EXT 8 113461 01 ON OFF Switch with Light 103814 01 Wire Tie Not Shown Groups wires connected to Ignition Control Assembly M9900 77 Wire Not Shown Connects T stat to Ignition Control Assembly 079010 46 Wire Not Shown Connects ON OFF Switch to Ignition Control Assembly or Thermostat if Equipped AAA Y AAA AGS PGS
3. Figure 28 Nozzle and Nozzle Adapter FUEL AND AIR LINE REPLACEMENT AND PROPER ROUTING 1 Remove upper shell see Upper Shell Re moval page 9 2 Remove side cover screws using 5 16 nut driver see Figure 18 or 19 page 10 3 Remove side cover Inspect fuel and air line hoses for cracks and or holes If fuel line hose is damaged discon nect from nozzle adapter see Figure 23 or 24 page 12 or Figure 27 and from fuel filter see Fuel Filter page 10 If air line hose is dam aged disconnect from nozzle adapter see Fig ure 23 or 24 page 12 or Figure 27 and from barb fitting on pump end cover see Figure 29 5 Install new air and or fuel line Attach one end of air line hose to barb fitting on pump end cover see Figure 29 and the other end to nozzle adapter see Figure 23 or 24 page 12 or Figure 27 Attach one end of fuel line hose to fuel fil ter see Fuel Filter page 10 and the other end to nozzle adapter see Figure 23 or 24 page 12 or Figure 27 Note Route hoses as shown in see Figure 23 or 24 page 12 or Figure 27 according to model Hoses are not to touch photocell bracket 6 Replace side cover Replace upper shell and fan guard see Upper Shell Removal page 9 Pump End Cover Barb Fitting Barb Fitting Air Hose 40 50 55 60 70 Models 110 115 155 165 200 Models Figure 29 Air Hose to Barb Fitting 113282 01C www desatech com 13 SERVICE PROCEDURES Continu
4. 008 004 Z y 076 101 mm O 4 Gap Measured With Feeler lt gt ZA Rotor Gap Adjusting Screw Figure 32 Gap Adjusting Screw Locations Sandpaper Figure 33 Sanding Rotor www desatech com 113282 01C SERVICE PROCEDURES Continued Fuse Clips IGNITION CONTROL ASSEMBLY WARNING High voltage D Fuse Cover Re Unplug heater Ne E Remove side cover screws 4 using 5 16 nut driver to expose ignition control assembly LA Remove fuse cover see Figure 34 Remove fuse from fuse clips see Figure 34 woe Replace fuse with fuse of the same type and rating GMA 10 Do not substitute a fuse with a higher current rating Figure 34 Replacing Fuse 6 Replace fuse cover see Figure 34 7 Replace side cover see Figures 18 or 19 page 10 SPECIFICATIONS Model Size 40 50 55 60 70 110 15 155 165 200 Output Rating Btu Hr 40 000 50 55 70 000 110 000 155 000 165 000 200 000 amp 60 000 amp 115 000 Fuel Use only kerosene 1 2 diesel fuel oil JET A or JP 8 fuels Fuel Tank Capacity U S Gal Liters 3 11 3 5 18 9 5 18 9 9 34 13 5 51 13 5 51 13 5 51 Fuel Consumption Gal Per Hr Liters Per Hr 3 1 14 44 1 67 52 1 97 85 3 00 1 14 4 311 2 4 54 1 4 5 3 Pump Pressure psi 3 0 3 4 4 7 5 1 5 2 5 6 6 2 Electric Requirements 120 V 60 HZ Same All Models Amperage Normal Run 2 0 2 0 2 8 3 6 3 6 3 6 3 6 Motor RPM 1725 1725 3440
5. 10 Prior to plug ging heater into generator the output voltage should be verified if generator is equipped with the automatic idle feature the output voltage should be measured with the generator running at full speed If the voltage does not measure in this range the heater should not be plugged into the generator Refer to Operation page 5 for starting stopping and resetting heater procedures Alternator Ground Lug CH Ground Wire 10 AWG Stranded Copper Figure 9 Typical Generator Grounding Method Generator construction may vary from that shown STORING TRANSPORTING OR SHIPPING Note If shipping transport companies require 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 during future use 4 Replace fuel cap or drain plug Properly dis pose of old and dirty fuel Check with local automotive service stations that recycle oil 5 Tf storing store heater in dry place Make sure storage place is free of dust and corrosive fumes IMPORTANT Do not store kerosene over sum mer months for use during next
6. 102548 08 Replacement 113282 01C www desatech com 11 SERVICE PROCEDURES Continued Combustion Chamber sa Nozzle Adapter Bracket Photocell Bracket Air Line Hose Figure 23 Removing Air and Fuel Line Hoses 40 50 55 60 70 Models Only Combustion Chamber a Nozzle Adapter Bracket Nozzle ER Adapter Air Line Assembl Hose y Fuel Line 7 Y Photocell Hose Bracket Figure 24 Removing Air and Fuel Line Hoses 110 115 155 165 Models Only NOZZLE ASSEMBLY For 40 50 55 60 70 110 115 155 165 Models Only 1 Remove upper shell see Upper Shell Re moval page 9 Remove fan see Fan page 9 3 Remove fuel and air line hoses from nozzle assembly see Figure 23 or 24 4 nozzle assembly 1 4 turn to left and pull toward motor to remove see Figure 25 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 26 7 Blow compressed air through face of nozzle This will free any dirt in nozzle area 8 Inspect nozzle sleeve for damage Replace nozzle into nozzle adapter until nozzle seats Tighten 1 3 turn more using 5 8 socket wrench 4 5 to 5 1 N m 40 to 45 in Ibs See Figure 26 10 Attach nozzle assembly to burner strap see Figure 25 11 Attach fuel and airline hoses to nozzle assem bly See Fuel and Airline Replacement and Proper Routing page 14 12 R
7. 3400 3400 3400 3400 Hot Air Output CFM 170 180 360 490 550 575 600 Motor HP 1 15 1 15 1 8 1 5 1 5 1 5 1 4 Shipping Weight 32 14 5 34 154 36 16 3 56 25 4 69 31 3 71 32 2 83 37 6 Approximate Pounds Kilograms Heater Weight without Fuel 28 12 7 30 13 6 32 14 5 48 218 60 27 2 61 27 7 72 32 7 Approximate Pounds Kilograms Use of 72 diesel amp fuel oil will result in noticeable odor and could require additional fuel filter maintenance Use in extreme cold temperatures may require nontoxic anti icer additives 113282 01C www desatech com 15 Ignition Control Assembly WIRING DIAGRAMS Ignition Control Assembly Blue S Photocell Photocell Photocell Ignitor Motor Return Power Plug AC Neutral L2 120V 60Hz 120V L1 Motor Ignitor Er Yellow Ignitor 40 Models Photocell Blue Photocell Blue Photocell _ White Ignitor gt Power Plug Motor Return 120V 60Hz AC Neutral L2 120V L1 ON OFF Switch with Light Motor Ignitor Ignitor Yellow 50 55 60 70 110 115 155 165 200 Models Figure 35 Wiring Diagram without Thermostat 40 50 55 60 70 110 115 155 165 200 Models with Ignitor HA1000 Ignition Control Assembly Photocell Photocell Ignitor Green 1 Black Power Plug Motor Return 12
8. PGS GEA PEPA ch gt 2 424 OI A 113282 01C www desatech com 23 ILLUSTRATED PARTS BREAKDOWN STANDARD MODELS R200B PK200 UK200 TK200 THERMOSTAT MODELS RM200BT B200BT PK200T UK200T TK200T REM200BT R200BT 20 24 www desatech com 113282 01C 200 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 o NUMBER DESCRIPTION 107353 10 M15823 27 098512 69 103154 05 M10908 2 M16656 24 See page 26 M11084 26 102042 01 See page 29 M50631 101206 01 097785 04 104068 02 NTC 4C 102756 01 M27417 103523 01 M51345 03 M51345 04 M51150 01 M51345 04 M51151 02 M10990 3 M50814 03 107353 11 M50104 06 M50104 01 M11084 26 M11271 8 M10908 14 108088 17 113279 04 097663 03 113280 03 102349 01 M11143 1 113065 01 107333 04AA M11084 26 099230 01 M11084 27 113461 01 104458 01 M12461 18 104460 01 079010 35 WLE 2 103814 01 100621 06 079010 46 PARTS LIST Upper Shell Service Part Will Be Black Screw 10 te x 1 2 Combustion Chamber Photocell Bracket Screw 6 32 x 3 8 Photocell Assembly Burner Head Assembly Screw 10 16 x 3 8 Fan Motor and Pump Assembly Rubber Bumper Motor Mounting Bracket Foam Gasket Ignition Control Assembly Hex Lock Nut 1 4 20
9. Provided eel Wh Figure 6 Wheel and Handle Assembly 110 115 155 165 200 Models Only OPERATION IMPORTANT Reviewandunder stand the warnings in the Safety Information section page 2 They are needed to safely oper ate this heater Follow all local ordinances and codes when using this heater TO START HEATER 1 2 Follow all ventilation and safety information Locate heater to provide maximum circulation of the heated air Follow all location require ments noted in Safety Information page 2 Fill fuel tank with kerosene 4122 diesel fuel oil JET A or JP 8 fuel Attach fuel cap For thermostat models turn thermostat knob clockwise to the high position Plug heater s power cord into approved grounded three wire extension cord Extension cord must be at least six feet 1 8 meters long Extension Cord Size Requirement 6 to 10 feet 1 8 to meters long use 18 AWG 0 75 mm rated cord 11 to 100 feet 3 3 to 30 5 meters long use 16 AWG 1 0 mm rated cord 101 to 200 feet 30 8 to 61 meters long use 14 AWG 1 5 mm rated cord Plug extension cord into standard 120 volt 60 hertz 3 prong grounded outlet Note For heater without ON OFF switch ig nitor will preheat for five seconds then heater will start Note For heater with ON OFF switch push switch to position and heater should start in 5 seconds If heater does not start see Troubleshooting page 7 For thermostat m
10. TK115 REM115D RM115D B155D REM155D R165D RM155D PK155 UK155 TK155 B165D R155D B110D RM110D RM165D REM110D REM165D PK165 UK165 THERMOSTAT MODELS R110DT R115DT B115DT REM115DT RM115DT PK115T UK110T TK110T TK115T B155DT REM155DT R165DT RM155DT B165DT PK155T UK155T TK155T R155DT B110DT RM110DT RM165DT PK165T UK165T TK165T REM110DT REM165DT SB115DT SB165DT 2 8 22 www desatech com 113282 01C PARTS LIST 110 115 155 165 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 En Duas Ta NUMBER DESCRIPTION 098511 292 Upper Shell Service Part Will Be Black M15823 27 Screw 10 Je 1 2 098512 71 Combustion Chamber 110 115 098512 74 Combustion Chamber 155 098512 75 Combustion Chamber 165 103154 05 Photocell Bracket 110 115 M16660 02 Photocell Bracket 155 165 M10908 2 Screw 46 32 x 3 8 M16656 24 Photocell Assembly See page 26 Burner Head Assembly M11084 26 Screw 10 16 x 3 8 097293 01 Fan 110 115 155 102042 01 Fan 165 See page 28 Motor and Pump Assembly M50631 Rubber Bumper 101206 01 Motor Mounting Bracket M12461 18 Screw 8 32 x 7 8 104068 02 Ignition Control Assembly NTC 4C Hex Lock Nut 1 4 20 111037 01 Fan Guard M27417 Drain Plug Includes
11. driver for models us ing ignitor HA1000 or 5 16 nut driver for models using 102548 08 ignitor see Figure 23 Torque 90 to 1 69 N m 8 to 15 in Ibs Do not over torque 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 see Figure 20 12 Replace side cover see Figures 18 or 19 page 10 13 Connect and route fuel line hose and air line hose to nozzle adapter assembly See Fuel and Air Line Replacement and Proper Routing page 14 14 Replace photocell in photocell bracket Route wires as shown in either see Figures 23 24 or 27 page 12 15 Replace fan see page 9 16 Replace fan guard and upper shell see page 9 Combustion Chamber Se Air Line Hose Fuel Line Hose Photocell Bracket Photocell Assembly Side Cover Nozzle Adapter Bracket Ignitor Ignitor Wire Ignition Control Assembly Figure 20 Disconnecting Ignitor Wires from Ignition Control Assembly Ignitor Screw Washer Assembly Ignitor Element Photocell Bracket Combustion Chamber Ignitor Nozzle Adapter Bracket Nozzle Adapter Bracket Opening Figure 21 Ignitor HA1000 Replacement Ignitor Element Photocell Nozzle Adapter Bracket Opening M Nozzle Adapter Bracket 7 Combustion Chamber Figure 22 Ignitor
12. fuel line to fuel filter neck Replace side cover Fuel Filter and T Side Cover Upper Fuel Line Figure 18 Fuel Filter Removal 40 50 55 60 70 Models Fuel Filter Bushing and Lower Fuel Line Upper Fuel Line Figure 19 Fuel Filter Removal 110 115 155 165 200 Models 10 www desatech com 113282 01C SERVICE PROCEDURES Continued IGNITOR 1 Remove upper shell and fan guard See Up per Shell Removal page 9 Remove fan see page 9 3 Remove 4 side cover screws with a 5 16 nut driver Remove side cover see Figures 18 or 19 page 10 4 Disconnect ignitor wires from ignition con trol assembly see Figure 20 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 20 6 Remove combustion chamber Stand combus tion chamber on end with nozzle adapter bracket on top see Figure 21 or 22 7 Remove ignitor screw with a 1 4 nut driver for models using ignitor HA 1000 or 5 16 nut driver for models using 102548 08 ignitor Carefully remove ignitor from nozzle adapter bracket CAUTION Do not bend or strike ignitor element Handle with care 8 Carefully remove replacement ignitor from packing 9 Carefully guide ignitor into opening in nozzle adapter bracket Do not strike ignitor element Attach ignitor to nozzle adapter bracket with screw using a 1 4 nut
13. heating season Using old fuel could damage heater 6 www desatech com 113282 01C PREVENTATIVE MAINTENANCE SCHEDULE AA WARNING Never service heater while itis 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 or as needed Air output and lint filters Replace every 500 hours of operation or once a year Air intake filter Wash and dry with soap and water every 500 hours of operation or as needed See Storing Transporting or Shipping page 6 See Air Output Air Intake and Lint Filters page 9 See Air Output Air Intake and Lint Filters page 9 Fuel filter Cleantwiceaheatingseasonorasneeded See Fuel Filter page 10 Ignitor No maintenance required Fan blades Clean every season or as needed See Fan page 9 Motor Not required permanently lubricated TROUBLESHOOTING WARNING Never service heater while it is plugged in operating or hot Severe burns and electrical shock can occur FAULT CONDITION POSSIBLE CAUSE REMEDY Motor does not start five sec 1 No power to heater onds after heater is plugged in 2 ON OFF switch not in the ON l position 3 Ifequipped thermostat setting is too low 1 Check circuit breaker in elec trical panel 2 Verify the ON OFF switch is in ON 1 position and light is on 3 Turn thermostat knob to a higher setting WARNING Hig
14. 0 for referral information Parts heater even more portable and convenient Easy Centrals are listed the Authorized Service Cen 10 assemble ter booklet supplied with heater IGNITION CONTROL ASSEMBLY AIR GAUGE KIT HA1180 PHOTOCELL TESTER HA1170 For all models Special tool to check pump pressure Special tool used to test the ignition control as sembly and photocell THERMOSTAT KIT HA1210 HEAVY DUTY WHEELS AND Keeps your building at the temperature you select HANDLE KIT HA1202 day and night Helps economize on fuel For 40 50 55 60 70 000 Btu Models For heavy duty applications Makes your heater even more portable and convenient 113282 01C www desatech com 31 WARRANTY AND REPAIR SERVICE LIMITED WARRANTY DESA Heating Products warrants this product and any parts thereof to be free from defects in materials and work manship for one 1 year from the date of first purchase when operated and maintained in accordance with instruc tions 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 associated with warranty repairs are not reimbursable under this warranty Warranty service is available only through authorized dealers and service centers This warranty does not cover defects resulting from misuse ab
15. 084 26 Screw 10 16 x 3 8 103684 01 Fan 50 55 60 M29678 Fan 70 See page 27 Motor and Pump Assembly M51105 01 Fan Guard 113065 01 Power Cord M11143 1 Strain Relief Bushing NTC 4C Hex Lock Nut 1 4 20 M11084 26 Screw 10 16 x 3 8 M50631 Rubber Bumper 097461 16 Side Cover 101205 01 Motor Bracket M50104 06 Bushing M11271 8 Clip Nut M50104 02 Bushing M11084 26 Screw 10 16 x 3 8 M10908 14 Screw 48 32 x 3 8 098511 234 Lower Shell Service Part Will Be Black M50814 06 Rubber Airline 079973 01 Fuel Line M50876 05 Fuel Filter with bushing M10990 3 Rubber Bushing 102349 01 PCB Support 104068 02 Ignition Control Assembly 097663 04 Fuel Cap w Gauge includes Gasket Use with Fuel Tank 108088 16 113280 01 Fuel Cap w Gauge includes Gasket Use with Fuel Tank 113279 01 108088 16 Fuel Tank Metal Filler Neck 113279 01 Fuel Tank Plastic Filler Neck M51108 01 Shell Heat Shield 104458 01 Thermostat M12461 18 Screw 8 32 x 7 8 104460 01 Thermostat Knob WLE 2 Lock Washer EXT 8 113461 01 ON OFF Switch ON AJA 2 A CD A A h i OS NY ch dd A Su A 103814 01 Wire Tie For Ignition Control Assembly M9900 170 Wire Assembly Thermostat to Ignition Control Assembly 079010 46 Wire Assembly Connects Switch to Thermostat or Ignition Control 113282 01C www desatech com 21 ILLUSTRATED PARTS BREAKDOWN STANDARD MODELS PK110 R110D R115D B115D PK115 UK110 TK110
16. 0V 60Hz AC Neutral L2 120V L1 ON OFF Switch with Light Motor Ignitor Ignitor Tan Figure 36 Wiring Diagram without Thermostat 50 55 60 Models with Ignitor 102548 08 www desatech com 113282 01C WIRING DIAGRAMS Continued Photocell gt 2 Photocell E Ignitor 2 Power Plug E Motor Return 120V 60Hz 5 AC Neutral L2 o 5 120 L1 5 Motor Thermostat Ignitor Yellow Ignitor 40 Models Photocell Blue Blue Photoceii 3 Photocell White 2 Ignitor 2 Green lt TRO Power Plug S otor Return c 120V 60Hz S AC Neutral L2 26 o 120V L1 d T Motor Black ON OFF Switch S E with Light iih Thermostat Yellow Ignitor 50 55 60 70 110 115 155 165 200 Models Figure 37 Wiring Diagram with Thermostat 40 50 55 60 70 110 115 155 165 200 Models with Ignitor HA1000 Photocell Photocell Ignitor Green P PI Motor Return ower Plug VBlackl Q 120V 60Hz AC Neutral L2 120V L1 Ignition Control Assembly ON OFF Switch with Light Motor Thermostat Ignitor Ignitor Tan Figure 38 Wiring Diagram with Thermostat 50 55 60 Models with Ignitor 102548 08 113282 01C www desatech com 17 ILLUSTRATED PARTS BREAKDOWN STANDARD MODEL R40 REM40 PK40 UK40 T
17. 18 Screw 88 32 x 7 8 104460 01 Thermostat Knob WLE 2 Lock Washer EXT 8 M A OD Mi A A 2 1 1 1 1 1 2 8 2 2 1 1 6 1 6 1 1 1 1 1 1 5 1 1 1 1 1 1 1 1 103814 01 Wire Tie For Ignition Control Assembly M9900 170 Wire Assembly Thermostat to Ignition Control Assembly 113282 01C www desatech com 19 ILLUSTRATED PARTS BREAKDOWN STANDARD MODEL R50 50 R55C R60A PK55 UK55 TK50 TK55 B55C REM60A R70E B70E RM60A PK60 UK60 PK70 UK70 THERMOSTAT MODELS R50T REMSOT R55CT R60AT PK55T UK55T TK50T TK55T B55CT REM60AT R7OET B70ET RM60T PK60T UK60T PK70T UK70T 4 8 e dh 20 www desatech com 113282 01C PARTS LIST 50 55 60 70 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 NUMBER DESCRIPTION M51104 01 Handle 098511 67 Upper Shell Service Part Will Be Black M11084 29 Screw 10 16 x 3 4 M15823 27 Screw 10 16 x 1 1 2 098512 50 Combustion Chamber 50 55 60 for use with Ignitor HA1000 098512 76 Combustion Chamber 50 55 60 for use with Ignitor 102548 08 098512 51 Combustion Chamber 70 M10908 2 Screw 6 32 x 3 8 103154 03 Photocell Bracket M16656 24 Photocell Assembly See page 26 Burner Head Assembly M11
18. 5 Air Out y 220 EN I lt lt a H A Cotati AirLine Ignition Control Tank Nez iud To Burner Assembly i Air For Air For Fuel lt Sen TI Combustion m Fuel And Heating Figure 5 Cross Section Operational View 4 www desatech com 113282 01C ASSEMBLY FOR 110 115 155 165 200 MODELS ONLY These models are furnished with wheels and a handle Some models are furnished with a second handle also Wheels handle s and the mounting hardware are found in the shipping carton Tools Needed 1 Medium Phillips Screwdriver 3 8 Open or Adjustable Wrench Hammer Slide axle through wheel support frame Install wheel spacers if provided Install wheels on axle IMPORTANT When installing wheels point extended hub of wheels toward wheel support frame see Figure 6 2 Place cap nuts on axle ends Gently tap with hammer to secure 3 Place heater on wheel support frame Line up holes on fuel tank flange with holes on wheel support frame 4 Place handle s on top of fuel tank flange In sert screws through handle s 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 Cord Cleat with Bolts and Nuts If Provided Set of Two for Right or Left Side E Hot Air Outlet e Fuel _ Flange Wheel Support Frame Extended Axle Hub Wheel Spacer If
19. A3024 Nozzle Assembly 102548 08 Ignitor Kit 102336 05 Nozzle Adapter Bracket 104056 01 Nozzle Adapter HA3027 Nozzle Assembly 110 115 HA3028 Nozzle Assembly 155 1 be HA1000 Ignitor Kit 10908 75 Screw 6 32 x 7 8 102336 01 Nozzle Adapter Bracket 104054 01 Nozzle Adapter 103347 01 Washer 100735 13 Nozzle Assembly M10659 1 Nozzle Washer 10809 1 Nozzle Spring 8882 Nozzle Sleeve 107272 01 Retaining Ring 102336 03 Nozzle Adapter Bracket HA1000 Ignitor Kit 103347 01 Belleville Washer M10908 75 Screw 6 32 x 88 107273 01 Nozzle Adapter M50820 02 Barb Fitting OD JO Q gt Q N AAA ak Sak ch NB s 26 www desatech com 113282 01C ILLUSTRATED PARTS BREAKDOWN MOTOR AND PUMP ASSEMBLY FOR 40 50 55 60 70 MODELS KEY PART NO NUMBER DESCRIPTION QTY 1 102001 28 Motor 40 50 55 60 102001 29 Motor 70 079975 03 Pump Body 50 55 60 079975 02 Pump Body 40 70 M22009 Insert M22456 2 Rotor 50 55 60 M22456 1 Rotor 40 70 M29608 Pump End Cover M29632 Lint Filter M29633 Intake Filter M29609 Filter End Cover M12461 31 Screw 10 32 x 1 M27694 o Adjusting Screw M10993 1 o Pressure Relief Spring M22997 o Plug M8940 Steel Ball 1 4 Diameter M29612 01 Output Filter M12461 32 Screw 10 32 x 1 1 8 50 55 60 M12461 31 Screw 10 32 x 1 40 70 103676 01 Nylon Elbow 90 M8643 2 Blade 50 55 60 M8643 Blade 40 70 FHPF3 6C Scre
20. Ball 1 4 Diameter 10993 1 Relief Spring M27694 Adjusting Screw M22997 Plug M12461 31 Screw 10 32 x 1 M12244 1 Output Filter M11637 Lint Filter M50820 02 Barb Fitting M8643 2 Blade M12461 32 Screw 10 32 x 1 12 105780 01 Plastic Cap xxx Included in Filter Kit Part No HA3017 ncluded in Rotor Kit Part No HA3005 Included in Pump Adjustment Kit Part No HA3020 E ch ech ch bh ch apo 113282 01C www desatech com 29 ILLUSTRATED PARTS BREAKDOWN WHEELS AND HANDLE PARTS LIST KEY PART PART NO NUMBER DESCRIPTION HA2303 HA2304 M12345 33 M12342 3 M12831 5 NTC 3BZ 107426 01 Handle 110 115 Hex Nut 10 24 Handle 155 165 200 Screw 10 24 x 1 3 4 Wheel Support Frame 110 115 1 Wheel Support Frame 155 165 200 1 Wheel Kit 110 115 If Equipped 2n Equipped 60r8 60r8 Contains 2 Wheels and Cap Nuts 1 113326 01 Pneumatic Wheel Kit 155 165 200 Contains 2 Wheels Cap Nuts amp Spacers M28526 M51015 01 M16801 5 113497 01 113193 01 Cap Nut Axle 110 115 Cord Cleat Kit Contains 2 Cleats 4 Nuts and 4 Bolts REPLACEMENT PARTS Note Use only original replacement parts This will protect your warranty coverage for parts re placed under warranty PARTS UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call DESA Heating Products Technical
21. DESA HEATING PRODUCTS KEROSENE DIESEL PORTABLE FORCED AIR HEATERS OWNER S MANUAL New Straight Shell 2 Design Cy Se 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 2 Preventative Maintenance Schedule 7 Unpacking seinen tente ence S Troubleshooting eere rrr entree 7 Product Identification 3 Service Procedures 9 1 4 Specifications 4 15 b PT 4 Wiring Diagrams een 16 Theory of Operation 4 Illustrated Parts Breakdown and Parts List 18 Accipe MM 5 Replacement Parts 30 M 5 Technical Service Operation With Portable Generator 6 Storing Transporting or Shipping 6 X Warranty and Repair Service Back Cover Fill In For Your Records M
22. FF Switch Ignition Control ie with Light Assembly On Inside of Side Cover Figure 3 110 115 155 165 Models Thermostat Knob Thermostat Models Only Hot Air Outlet Fuel Cap Gauge Side Cover Ignition Control Assembly On Inside of Side Cover Figure 4 200 Model ON OFF Switch with Light 113282 01C www desatech com 3 FUELS VENTILATION WARNING Use only kero sene 441 22 diesel fuel oil JET A or JP 8 fuels to avoid risk of fire or explosion Never use gaso line oil drained from crankcases naphtha paint thinners alcohol or other highly flammable fuels Use only kerosene 1 2 diesel fuel oil JET A or JP 8 fuels Heavier fuels such as No 2 fuel oil or No 2 diesel fuel may also be used but will result in noticeable odor additional fuel filter maintenance the need for nontoxic anti icer additives in very cold weather Do not use fuels heavier than No 2 grade or heavy oils such as oil drained from crankcases These heavy oils will not ignite properly and will con taminate the heater IMPORTANT Use a KEROSENE ONLY blue or DIESEL ONLY yellow storage container Be sure storage container is clean Foreign matter such as rust dirt or water will cause the ignition control as sembly to shut down heater Foreign matter may also require heater s fuel system to be frequently cleaned WARNING Provide a fresh air opening of at least three squ
23. Fan Guard Drain Plug Includes o Ring Rubber Bushing Fuel Line Models with Fuel Valve Assembly Fuel Line Models without Fuel Valve Assembly Fuel Filter Fuel Line Tube Models with Fuel Valve Assembly Fuel Line Tube Models without Fuel Valve Assembly Rubber Bushing Airline Lower Shell Service Part Will Be Black Bushing Bushing Screw 10 16 x 3 8 Clip Nut Screw 8 32 x 3 8 Fuel Tank Metal Filler Neck Fuel Tank Plastic Filler Neck Fuel Cap w Gauge includes Gasket Use with Fuel Tank 108088 17 Fuel Cap w Gauge includes Gasket Use with Fuel Tank 113279 04 P C Board Support Strain Relief Bushing Power Cord Side Cover Screw 10 16 x 3 8 Screw Special Screw 10 16 x 1 2 ON OFF Switch with Cover Thermostat Screw 8 32 x 7 8 Thermostat Knob Wire Assembly Lock Washer EXT 8 Wire Tie Not Shown For Ignition Control Assembly Thermostat Decal Not Shown Wire Not Shown For ON OFF Switch NH ch ch ch dd nnn NANA yaya 09 4 1 79 9 CD A ch OI ch 113282 01C www desatech com 25 ILLUSTRATED PARTS BREAKDOWN BURNER HEAD ASSEMBLY FOR 40 50 55 60 70 MODELS WITH HA1000 IGNITOR HA3006 Nozzle Assembly 40 HA3024 Nozzle Assembly 50 55 60 HA3026 Nozzle Assembly 70 HA1000 Ignitor Kit 104056 01 Nozzle Adapter 102336 01 Nozzle Adapter Bracket M10908 75 Screw Hex Head Tapping 103347 01 Belleville Washer H
24. K40 N40 THERMOSTAT MODELS 40 REM40T PK40T UK40T 40 N40T 44 18 www desatech com 113282 01C 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 M51104 01 Handle 098511 67 Upper Shell Service Part Will Be Black M11084 29 Screw 10 16 x 3 4 M15823 27 Screw 10 16 x 1 1 2 098512 58 Combustion Chamber M10908 2 Screw 86 32 x 3 8 103154 03 Photocell Bracket M16656 24 Photocell Assembly See page 26 Burner Head Assembly M11084 26 Screw 10 16 x 3 8 103684 01 Fan See page 27 Motor and Pump Assembly M51105 01 Fan Guard 098219 38 Power Cord M11143 1 Strain Relief Bushing NTC 4C Hex Lock Nut 1 4 20 M11084 26 Screw 10 16 x 3 8 M50631 Rubber Bumper 097461 16 Side Cover 101205 01 Motor Bracket M50104 06 Bushing M11271 8 Clip Nut M50104 02 Bushing M11084 26 Screw 10 16 x 3 8 M10908 14 Screw 88 32 x 3 8 098511 234 Lower Shell Service Part Will Be Black M50814 06 Rubber Airline 079973 01 Fuel Line M50876 04 Fuel Filter with bushing M10990 3 Rubber Bushing 102349 01 PCB Support 104068 02 Ignition Control Assembly 097702 01 Fuel Cap Includes Gasket 108088 01 Fuel Tank M51108 01 Shell Heat Shield 104458 01 Thermostat M12461
25. Service Dept at 1 866 672 6040 When calling DESA Heating Products have ready your name your address model and serial numbers of your heater how heater was malfunctioning purchase date Axle 155 165 200 Wheel Spacer 155 165 200 only 1 If Equipped Usually we will ask you to return the 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 Heating Products at 1 866 672 6040 for referral information Parts dealers are listed in the Authorized Service Center booklet sup plied with heater When calling DESA Heating Products have ready model and serial numbers of your heater the replacement part number 30 www desatech com 113282 01C TECHNICAL SERVICE You may have further questions about installation operation or troubleshooting If so contact DESA Heating Products Technical Service Department at 1 866 672 6040 When calling please have your model and serial numbers of your heater ready You can also visit DESA Heating Products tech nical services web site at www desatech com ACCESSORIES Purchase accessories and parts from your near est dealer or service center If they can not sup STANDARD WHEELS AND HANDLE KIT HA1206 ply these accessories or parts either contact your nearest parts dealer or DESA Heating Products For 40 50 55 60 70 000 Btu Models Makes at 1 866 672 604
26. are feet 2 800 square cm for each 100 000 Btu hr rating Provide extra fresh air if more heaters are being used The mini mum ventilation requirements must be followed to avoid risks associated with carbon monox ide poisoning Make certain these requirements are met prior to operating heater Example A 200 000 Btu Hr 58 6kw heater re quires one of the following e two car garage door 16 feet 4 88 meter opening raised 5 inches 12 7 cm single car garage door 9 feet 2 74 meter opening raised 8 inches 20 3 cm two 30 inch 76 2 cm windows raised 15 inches 38 1 cm 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 be lifted 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 The Ignition System The ignition control assembly provides power to the ignitor This ignites the fuel air mixture in the combustion chamber The Flame Out Control System This system causes the heater to shut down if the flame goes out Combustion Chamber Ignitor Fan Motor Air Pump Air Intake Filter Clean gt P Heated 2 EN d
27. d 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 304 8cm It is further recommended that these enclosure materials be of a fire retardant nature These enclosure materials shall be securely fas tened to prevent them from igniting or from up setting the heater due to wind action Unplug heater when not in use Never block air inlet rear or air outlet front of heater Warning to New York City Residents For Use Only At Construction Sites in accor dance with applicable NYC codes under NYCED certificate of approval 4803 4899 4908 4909 or 4934 UNPACKING 1 Remove all packing items applied to heater for shipment Remove all items from carton 3 Check items for any shipping damage If heater is damaged promptly inform dealer where you bought heater PRODUCT IDENTIFICATION Hot Air Thermostat Knob Outlet Fan Guard Thermostat an are Models Only Ignition Control Assembly On Inside of Side Cover Figure 1 40 Models Hot Air Thermostat Knob Outlet Fan Guard Thermostat an LAG Models Only Ignition Control lt Air Filter Assembly On ON OFF Switch Eng Inside of Side With Light Cover Cover Fuel Cap Gauge Figure 2 50 55 60 70 Models Thermostat Knob Thermostat Models Only Fan Guard Fuel Hot Air Outlet Cap Gauge ON O
28. e 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 Heating Products When writing for information regarding your heater be sure to include the model number and serial number as shown on the model plate For more information about this warranty write DESA HEATING PRODUCTS 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 www desatech com 113282 01 Rev C Printed in U S A NOT A UPC 08 04
29. ed PUMP ROTOR Procedure if Rotor is Binding 1 10 11 12 13 14 15 16 Remove upper shell see Upper Shell Re moval page 9 Remove filter end cover screws using 5 16 nut driver see Figure 30 or 31 Remove filter end cover and air filters Remove pump plate screws using 5 16 nut driver Remove pump plate Remove rotor insert and blades see Figure 30 or 31 Check for debris in pump If debris is found blow out with compressed air Install insert and rotor Check gap on rotor Adjust to 076 101 mm 003 004 if needed see Figure 32 Note Rotate rotor one full turn to ensure the gap is 076 101 mm 003 004 at tightest position Adjust if needed Install blades pump plate air filters and filter end cover Replace fan guard and upper shell see Upper Shell Removal page 9 Adjust pump pressure see Pump Pressure Adjustment page 10 Note If rotor is still binding proceed as follows Perform steps 1 through 6 Place fine grade sandpaper 600 grit on flat surface Sand rotor lightly in figure 8 mo tion four times see Figure 33 Reinstall insert and rotor Perform steps 10 through 12 Blade Air Intake Pump Filter Filter End Cover Air Output Filter Figure 30 Rotor Location 40 50 55 60 70 Models Air Output Filter Filter End Cover Figure 31 Rotor Location 110 115 155 165 200 Models Gap Adjusting Screw Pado Lect
30. eplace fan see Fan page 9 13 Replace fan guard and upper shell see Upper Shell Removal page 9 Combustion Chamber a Nozzle Adapter Assembly TS Figure 25 Removing Nozzle Adapter Assembly Nozzle Face Nozzle Nozzle Adapter Air Line Fitting j T Fuel Line Fitting Figure 26 Nozzle and Nozzle Adapter 12 www desatech com 113282 01C SERVICE PROCEDURES Continued For 200 Model Only 1 Remove combustion chamber and ignitor by following steps 1 through 7 under gnitor pages 11 and 12 Carefully place the ignitor in a safe location 3 Remove two nozzle adapter bracket screws see Figure 27 4 Place hex shaped aluminum nozzle adapter into vise do not overtighten 5 Carefully remove nozzle from nozzle adapter using 5 8 socket wrench see Figure 28 6 Blow compressed air through face of nozzle This will remove any debris in nozzle 7 Inspect nozzle seal for damage 8 Replace nozzle into nozzle adapter until nozzle seats Tighten 80 110 inch pounds 9 Attach nozzle adapter bracket to combustion chamber with two screws removed in step 3 10 Repeat steps 9 through 16 under gnitor page 11 Combustion Chamber SCH Nozzle Nozzle Adapter Adapter Bracket Bracket Screw Photocell Bracket Nozzle Adapter Assembly Fuel Line Hose Figure 27 Removing Air and Fuel Line Hoses 200 Model Only Nozzle Face Nozzle Nozzle Adapter Adapter Fuel Line Fitting
31. h voltage 4 Bad electrical connection be tween motor and ignition con trol assembly or ignition con trol assembly and power cord 5 Binding pump rotor 6 Defective ignition control as sembly 7 Defective motor 8 Blown fuse or ignitor control assembly 4 Check all electrical connec tions See Wiring Diagrams page 16 5 If fan does not turn freely see Pump Rotor page 14 6 Replace ignition control as sembly 7 Replace motor 8 See Ignition Control Assem bly page 15 113282 01C www desatech com 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 AA WARNING High voltage Bad electrical connection be tween ignitor and ignition con trol assembly Defective ignitor Defective ignition control as sembly 200 Model Only Defective fuel valve Models equipped with fuel valve only 6 Check electrical connections See Wiring Diagrams page 16 Replace ignitor see page 11 Replace ignition control as sembly See Fuel Valve page 11 Heater ig
32. high dust content Minimum clearance from any combustible materials 8 feet 244 cm from hot air outlet 4 feet 122 cm from top and 4 feet 122 cm from sides and inlet Locate heater on a stable and level surface while hot or operating or a fire may occur Use only in well vented areas Before using heater provide at least a three square foot 2800 square cm opening of fresh outside air for each 100 000 Btu Hr 30 kw of rating Keep children and animals away from heater at all times Never start heater when combustion chamber is hot or if fuel has accumulated in combustion chamber When used with thermostat heater may start at anytime When heater is moved or stored it must be ina level position or fuel spillage may occur Use heater only in accordance with local ordi nances and codes Never use gasoline crankcase drainings naph tha paint thinners alcohol or other highly flam mable fuels Never use heater where gasoline paint thinner or other highly flammable vapors are present Never use heater in living or sleeping areas Never leave a heater plugged in without adult supervision if children or animals are likely to be present 2 www desatech com 113282 01C SAFETY INFORMATION Continued Never move handle refuel or service a hot operating or plugged in heater Neverattach duct work to front or rear of heater Never attach heater to external fuel tank Heaters use
33. nites but ignition con trol assembly shuts heater off after a short period of time 1 b uy a Pump pressure incorrect Dirty air intake air output and or lint filter Dirty fuel filter Obstruction in nozzle Photocell assembly not properly installed not seeing the flame Dirty photocell lens N uy a See Pump Pressure Adjust ment page 10 See Air Output Air Intake and Lint Filters page 9 See Fuel Filter page 10 See Nozzle Assembly page 13 Make sure photocell boot is properly seated in bracket Clean photocell lens A WARNING High voltage Bad electrical connection be tween photocell and ignition control assembly 75 Check electrical connections See Wiring Diagrams page 16 8 Defective photocell 8 Replace photocell 9 Defective ignition control as 9 Replace ignition control as sembly sembly 8 www desatech com 113282 01C SERVICE PROCEDURES WARNING To avoid risk of burn and electrical shock never attempt to service heater while it is plugged in operating or hot UPPER SHELL REMOVAL 1 Remove screws along each side of heater using 5 16 nut driver These screws attach upper and lower shells together See Figure 10 or 11 Lift upper shell off 3 Remove fan guard Upper Shell Fan Guard BW Figure 10 Upper Shell Removal 40 50 55 60 70 Models Only Screw Uppe
34. odel No Located on side panel Serial No Located on fuel tank Date of Purchase Save this manual for future reference For more information visit www desatech com SAFETY INFORMATION WARNING This productcon tains and or generates chemicals known to the State of California to cause cancer or birth defects or other reproductive harm IMPORTANT Read this owner s manual carefully and completely before trying to assemble oper ate or service this heater Im properuseofthis heatercancause serious injury or death from burns fire explosion electrical shock andcarbon monoxide poisoning A DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of car bon monoxide poisoning resemble the flu with head aches 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 pregnant 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 warn ings Keep this manual for reference It is your guide to safe and proper operation of this heater Use only kerosene 172 diesel fuel oil JET A or JP 8 fuels to avoid risk of fire or explosion Never use gasoline naphtha paint thinners al c
35. odels adjust thermostat knob to the desired setting Note A cold heater may affect the thermostat setting This thermostat is a general heating control It is not intended for precise temperature control Adjust thermo stat until heater cycles at the desired setting TO STOP HEATER Without ON OFF Switch Unplug extension cord from outlet With ON OFF Switch Push ON OFF switch to OFF O position Un plug heater when not in use 113282 01C www desatech com 5 OPERATION Continued TO RESTART HEATER Wthout ON OFF Switch 1 Unplug extension cord from outlet and wait 10 seconds Wait two minutes if heater has been running 2 Repeat steps under To Start Heater With ON OFF Switch 1 Push ON OFF switch to OFF O position and wait 10 seconds 2 minutes if heater has been running 2 Repeat steps under To Start Heater page 5 ON OFF Switch with ON OFF Switch with Light Figure 8 ON OFF Switch 110 115 155 165 200 Models OPERATION WITH PORTABLE GENERATOR WARNING Before operating heater or any appliance from a portable generator verify that generator has been properly con nectedto earth ground Improper grounding or failure to ground generator can result in electro cution if a ground fault occurs Referto owner s manual supplied by generator manufacturer for proper grounding procedures The operating voltage range of the heater is 108 to 132 Volts 120 Volts
36. ohol 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 heat ing 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 25 feet 762cm from heaters torches welding equipment and similar sources of ignition exception the fuel reservoir inte gral with the heater unit g Whenever possible fuel storage shall be con fined 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 Use only the electrical voltage and frequency specified on model plate Heater must be grounded Use only a properly grounded three wire extension cord Plug into grounded outlet only Use only in areas free of flammable vapors or
37. r Shell Fan Guard Rm Figure 11 Upper Shell Removal 110 115 155 165 200 Models Only FAN IMPORTANT Remove fan from motor shaft be fore removing motor from heater The weight of the motor resting on the fan could damage the fan pitch see Figure 12 1 Remove upper shell see Figure 10 or 11 2 Use 1 8 allen wrench to loosen setscrew 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 13 7 Placesetscrew on flat of shaft Tighten setscrew firmly 40 50 inch pounds 4 5 5 6 n m 8 Replace fan guard and upper shell Setscrew Motor Shaft Figure 12 Fan Motor Shaft and Setscrew Location C Motor 2 a 2 n s Flush 4 NA Motor Shaft Figure 13 Fan Cross Section AIR OUTPUT AIR INTAKE AND LINT FILTERS 1 Remove upper shell see Figure 10 or 11 2 Remove filter end cover screws using 5 16 nut driver see Figure 14 or Figure 15 page 10 3 Remove filter end cover Replace air output and lint filters 5 Wash or replace air intake filter see Preven tative Maintenance Schedule page 7 Air Intake Filter Filter End Cover Kee Y Lint Filter A Output Filter Figure 14 Air Output Air Intake and Lint Filters 40 50 55 60 70 Models Only
38. use negligence accidents lack of proper mainte nance 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 EXPRESSED OR IMPLIED INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICU LAR PURPOSE DESA Heating Products assumes no responsibility for indirect 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 Warranty gives you specific legal rights and you may also have other rights which vary from state to state 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 workmanship If so DESA Heating Products will repair or replace the heater without charge REPAIR SERVICE Return the heater to your nearest authorized service center Each Service Center is independently owned and oper ated Repairs not covered by the warranty will be billed at standard prices We reserve the right to amend these specifications at any time without notice Illustrated parts lists can b
39. w 10 32 x 3 4 50 55 60 FHPF3 5C Screw 10 32 x 5 8 40 70 105780 01 Plastic Cap Included in Rotor Kit Part No HA3005 Included in Rotor Kit Part No HA3004 Included in Filter Kit Part No 014 Included in Pump Adjustment Kit Part No HA3020 1 1 1 1 1 1 1 1 1 1 1 3 1 1 1 1 1 6 6 1 4 4 2 2 1 113282 01C www desatech com 27 ILLUSTRATED PARTS BREAKDOWN MOTOR AND PUMP ASSEMBLY FOR 110 115 155 165 MODELS KEY PART NO NUMBER DESCRIPTION QTY 1 102001 30 Motor 079975 02 Pump Body FHPF3 5C Screw 10 32 x 5 8 M22009 Rotor Insert M22456 1 Pump Rotor M50545 Pump End Cover M12179 Intake Filter M16545 Filter End Cover M8940w Steel Ball 1 4 Diameter 10993 1 Relief Spring M27694 Adjusting Screw M22997 Plug 12461 31 Screw 10 32 x 1 M12244 1 Output Filter M11637 Lint Filter 104096 01 Fitting Straight Nylon Barb M8643 Blade Included in Rotor Kit Part No HA3004 Included in Filter Kit Part No HA3017 Included in Pump Adjustment Kit Part No HA3020 enn po o 28 www desatech com 113282 01C ILLUSTRATED PARTS BREAKDOWN MOTOR AND PUMP ASSEMBLY FOR 200 MODELS KEY PART NO NUMBER DESCRIPTION 102001 27 Motor 079975 03 Pump Body 6 Screw 10 32 x 5 8 M22009 Rotor Insert M22456 2 Pump Rotor M50545 Pump End Cover M12179 Intake Filter M16545 Filter End Cover M8940 Steel
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