Desa 100 Electric Heater User Manual
Contents
1. Combustion S Air park Burner Fan Chamber Plug Head Intake Filter MA a Sa L E 1 Clean iS Cool Heated m H Air Air Out Fen lt E In lt bei z amp We q ium Air Output Filter N NUM SS Fuel Nozzle Fuel L Air Line Electronic Tank Filter To Burner Ignitor Air For Fuel Air For Combustion im Fuel System And Heating FUELS Figure 4 Cross Section Operational View A 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 carbon build up on spark plug the need of non toxic anti icer in fuel during very cold weather IMPORTANT Use a KEROSENE ONLY storage 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 require you to clean fuel system often 099176 VENTILATION OPERATION A WARNING Follow the minimum fresh outside air ventilation requirements If proper fresh outside air ventilation is not provided carbon monoxide poisoning can occur Provide proper fresh outside air ventilation2. PORTABLE FORCED AIR HEATERS OWNER S MANUAL Heater Sizes 35 000 50 000 55 000 70 000 100 000 110 000 150 000 BTU Hr 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 CONTENTS SAFETY INFORMATION SECTION PAGE Safety Information e oii HER re re pe RECIEN une 2 Product Identification senai 4 Unpacking ere eerie prete pe EU eor pet 5 Assemb yide tod im tete et etre eeu Aca doutes 5 Theoty of Operation e Pete ee Ce sega 6 Fuels etch tree reste echte tete este tenir 6 VMentilation tede dieere tert vire HEAT 7 ODpefatiofti dnte hte atit i pe 7 SIOIAge quledaesas amio up ias da 8 Preventative Maintenance Schedule 8 Troubleshooting nnie nn te deter 9 Service Procedu r s i etui cen tekeni cade ec aerei anke pe Fa eH 10 Upper Shell Removal 10 ee EGET ee 10 Air Output Air Intake and Lint Filters 10 Pump Pressure Adjustment eseeeeeeeerene 11 Foel ett rie ertet ats 11 Spark Plug 35 50 55 000 BTU Hr Models 11 Spark Plug 70 100 110 150 000 BTU Hr Models 12 Nozzle
3. Air Intake Filter Filter End rm Air Output Filter Figure 28 Rotor Location 100 110 150 000 BTU Hr Models Fan Guard Insert Rotor 099176 Pump Rotor continued 10 Install blades pump plate air filters and filter end cover 11 Replace fan guard and upper shell 12 Adjust pump pressure see page 11 Note If rotor is still binding proceed as follows 13 Perform steps 1 through 6 see page 13 14 Place fine grade sandpaper 600 grit on flat surface Sand rotor lightly in figure 8 motion four times see Fig ure 30 15 Reinstall insert and rotor 16 Perform steps 10 through 12 above SPECIFICATIONS WIRING DIAGRAMS Gap Adjusting Screw 003 004 Gap Sandpaper E NN ON Measured With Feeler Gauge M Id Seal E 2 Rotor M Gap Adjusting Screw Figure 30 Sanding Rotor Figure 29 Gap Adjusting Screw Locations Output Rating BTU Hr 35 000 50 000 55 000 70 000 100 000 110 000 150 000 Fuel Use Only Kerosene or No 1 Fuel Oil Fuel Tank Capacity U S Gal 3 0 4 0 5 0 5 0 9 0 9 0 13 5 Fuel Consumption Gal Per Hr 26 37 40 52 74 82 1 10 Electric Requirements 120 V 60 Hz Same All Models Amperage Normal Run 2 0 2 0 2 0 2 5 4 5 4 5 4 5 Hot Air Output CFM 165 165 175 250 480 490 500 Power Plug 120V 60HZ m Black Gre
4. 35 50 55 000 BTU Hr Models 12 Nozzle 70 100 110 150 000 BTU Hr Models 13 Pump Rotor iih seemed aeter 13 Specification Sse eae ege rette i etes 14 Waring Diagrams 14 Maintenance Kits iE eee E E Peu ee eis 15 AJNCCOSSOFIGS dr edd e 15 Warranty and Repair Service sse Back Cover AWARNINGS IMPORTANT Read this Owner s Manual carefully and completely before trying to assemble operate or service this heater Improper use of this heater can cause serious injury or death from burns fire explosion electrical shock and carbon monoxide poisoning ADANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning resemble 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 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 Warnings Keep this manual for reference It is your guide to safe and proper operation of this heater 099176 SAFETY WARNINGS Continued INF ORM ATION Use only kerosene or No 1 fuel oil to avoid risk of fire or exp
5. or service a hot operating or plugged in heater Never attach duct work to front or rear of heater 099176 PRODUCT IDENTIFICATION Hot Air Outlet Handle Lower Shell Fuel Tank Side Cover SS rdi OSS Upper Shell gt Fan Guard Sa Air Filter 5 End Cover Z Fuel Cap Flame Out Control N QN SAF Reset Button Power Cord Figure 1 35 50 55 70 000 BTU Hr Models Hot Air b Upper Shell Lower eA J Shell Vw le FEE F acc Fan Guard CERERI GA of 5 Fuel Tank Side Cover fy C X CN Flame Out Power Cord Control Reset Button Figure 2 100 110 150 000 BTU Hr Models 099176 UNPACKING ASSEMBLY For 100 000 110 000 and 150 000 BTU Hr Models Only 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 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 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
6. page 10 Air intake Wash and dry with soap and See Air Output Air Intake filter water every 500 hours of op and Lint Filters page 10 eration or replace as needed Fuel filter Clean twice a heating season See Fuel Filter page 11 or replace as needed Spark plug Clean and regap every 600 See Spark Plug pages 11 hours operation or replace and 12 as needed Fan blades Clean each season or as needed See Fan page 10 Motor Not required permanently lubricated 099176 TROUBLE SHOOTING A WARNING Never service heater while it is plugged in operating or hot Severe burns and electrical shock can occur OBSERVED FAULT Heater ignites but flame out control shuts off heater after a short period of time POSSIBLE CAUSE Wrong pump pressure Dirty air output air intake and lint filters Dirty fuel filter Dirt in nozzle Dirty photocell lens Bad flame out control REMEDY See Pump Pressure Adjustment page 11 See Air Output Air Intake and Lint Filters page 10 See Fuel Filter page 11 See Nozzle page 12 Clean photocell lens Replace flame out control Heater will not ignite but motor runs for a short period of time Wrong pump pressure Carbon deposits on spark plug and or improper gap Dirty fuel filter Dirt in nozzle Water in fuel tank WARNING High voltage Electronic ignitor not grounded Bad electronic ignitor See Pump Pressure
7. before running 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 heaters are being used Example A 150 000 BTU Hr heater requires one of the following e a two car garage door raised six inches e single car garage door raised nine inches two thirty inch windows raised twelve inches A WARNING heater Review and understand the warnings in the Safety Informa tion Section pages 2 and 3 They are needed to safely operate this heater Follow all local codes when using this To Start Heater 1 Follow all ventilation and safety information Fill fuel tank with kerosene or No 1 fuel oil 2 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 Requirements 6 to 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 outlet Heater will start when extension cord is plugged into outlet If not push in flame out control reset button see Figures 5 and 6 Flame Out Control Reset Button ESTNE ES Figure 5 Flame Out Control Reset Button 35 50 55 70 000 BTU Hr Models Flame Out Control Reset Button Figure 6 Flame Out Control R
8. burner head and tighten firmly 80 110 inch pounds 12 Attach burner head to combustion chamber 13 Install spark plug in burner head 14 Attach spark plug wire to spark plug 15 Attach fuel and airline hoses to burner head 16 Replace fan see page 10 17 Replace fan guard and upper shell Pump Rotor Procedure if rotor is binding 1 Remove upper shell see page 10 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 Remove pump plate 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 003 004 if needed see Figure 29 QN tA Note Rotate rotor one full turn to insure the gap is 003 004 at tightest position Adjust if needed Continued Combustion Chamber Se Spark Plug Burner Head Wire Screw Spark Plug Air Line Hose Fuel Line Hose Figure 25 Removing Burner Head 70 100 110 150 000 BTU Hr Models Nozzle Nozzle Ge Seal Face uw Nozzle Burner Head HER Fuel Line Fitting Air Line Fitting Figure 26 Removing Nozzle 70 100 110 150 000 BTU Hr Models Blade Air Intake Pump Filter Plate Filter End Insert Rotor Air Output Filter Figure 27 Rotor Location 35 50 55 70 000 BTU Hr Models Blade Pum
9. 3 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 support frame 4 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 5 After all screws are inserted tighten nuts firmly Front Handle Hot Air Outlet Rear Handle Fuel Tank Flange Wheel Support Frame 29 Wheel Cap Nut D DES I 6 Figure 3 Wheel and Handle Assembly 100 110 150 000 BTU Hr Models Only Extended Axle Hub 099176 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 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 electronic ignitor sends voltage to the spark plug The spark plug ignites the fuel and air mixture The Flame Out Control System This system causes the heater to shut down if the flame goes out Motor Air Pump
10. Adjustment page 11 See Spark Plug pages 11 and 12 See Fuel Filter page 11 See Nozzle page 12 Drain and flush fuel tank with clean kerosene See Storage page 8 Make sure electronic ig nitor mounting is tight Replace electronic ignitor Motor does not start when heater is plugged in fan rotates slowly or does not turn Flame out control not reset Solid state relay not allowed to reset Binding pump rotor Press flame out control reset button Wait two minutes before trying to restart heater If fan is hard to turn see Pump Rotor page 13 099176 SERVICE PROCEDURES Upper Shell Removal 1 Remove screws 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 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 loosen set screw which holds fan to motor shaft Slip fan off motor shaft 4 Clean fan using soft cloth mois tened with kerosene or solvent 5 Dry fan thoroughly 6 35 50 55 70 100 000 BTU Hr Models Replace fan on motor shaft Place fan hub flush with end of motor shaft see Figure 9 150 000 BTU Hr Model Replace fan on motor shaft Make sure set screw is touching back of flat surfa
11. Output Filter Figure 12 Air Output Air Intake and Lint Filters 100 110 150 000 BTU Hr Models 099176 Pump Pressure Adjustment 1 2 Remove pressure gauge plug from filter end cover Install accessory pressure gauge part number HA1180 Start heater see Operation page 7 Allow motor to reach full speed Adjust pressure Turn relief valve to right to increase pressure Turn relief valve to left to decrease pressure See specifications at right for correct pressure for each model Remove pressure gauge Replace pressure gauge plug in filter end cover Fuel Filter 1 Remove side cover screws using 5 16 nut driver Remove side cover Pull upper fuel line off fuel filter neck Carefully pry bushing fuel filter and lower fuel line 100 110 150 000 BTU Hr models only out of fuel tank Wash fuel filter with clean fuel and replace in tank Attach upper fuel line to fuel filter neck Replace side cover Spark Plug 35 50 55 000 BTU Hr Models 1 2 3 Remove upper shell see page 10 Remove fan see page 10 Remove fuel and air line hoses from nozzle assembly Remove spark plug wire from spark plug Remove two 2 screws using 5 16 nut driver and remove burner strap Place hex body of spark plug into vise and tighten Remove spark plug mounting nut using 11 16 open end wrench Remove burner strap f
12. Rotor Air Pump Kit Part No HA3004 HA3004 HA3005 HA3004 HA3004 HA3004 HA3004 Handle Part No HA2203 HA2203 HA2204 Photocell Part No HA3019 HA3019 HA3019 HA3019 HA3019 HA3019 HA3019 Pump Adjustment Part No HA3020 HA3020 HA3020 HA3020 HA3020 HA3020 HA3020 AIR GAUGE KIT HA1180 For all models Special tool to check pump pressure MEN R E OOOO 200 i mmm THERMOSTAT KIT HA1210 For all models Keeps your building at the temperature you select day and night Helps economize on fuel A i STANDARD WHEELS AND HANDLE KIT HA1206 Makes heater even more portable and convenient Easy to assemble Fits 5 35 50 55 70 000 Hr models E j HEAVY DUTY WHEELS AND HANDLE KIT HA1202 For heavy duty applica tions Makes your heater even more portable and convenient Fits 35 50 55 70 000 BTU Hr models FLAME OUT CONTROL PHOTOCELL TESTER HA1170 For all models Special tool used to test the flame out control and photocell 099176 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 six 6 months 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 cos
13. ach spark plug wire to spark plug 15 Attach fuel and air line hoses to nozzle assembly 16 Replace fan see page 10 17 Replace fan guard and upper shell Spark Plug 70 100 110 150 000 BTU Hr Models 1 Remove upper shell see page 10 2 Remove fan see page 10 3 Remove spark plug wire from spark plug 4 Remove spark plug from burner head using 13 16 open end wrench 5 Clean and regap spark plug elec trodes as follows 70 100 000 BTU Hr Models 055 gap 110 150 000 BTU Hr Model 075 gap 6 Install spark plug in burner head 7 Attach spark plug wire to spark plug 8 Replace fan see page 10 9 Replace fan guard and upper shell Nozzle 35 50 55 000 BTU Hr Models 1 Remove upper shell see page 10 2 Remove fan see page 10 3 Remove fuel and air line hoses from nozzle assembly 4 Turn nozzle assembly 1 4 turn to left and pull toward motor to remove 5 Place plastic hex body into vise and lightly tighten 6 Carefully remove nozzle from the nozzle adapter using 5 8 socket wrench 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 until nozzle seats Tighten 1 3 turn more using 5 8 socket wrench 40 45 inch pounds 10 Attach nozzle assembly to burner strap 11 Attach fuel and airline hoses to nozzle assembly 12 Replace fan see page 10 13 Replace fan guard and up
14. ce on motor shaft see Figure 10 7 Place setscrew on flat of shaft Tighten setscrew firmly 40 50 inch pounds 8 Replace fan guard and upper shell Air Output Air Intake and Lint Filters 1 Remove upper shell see above 2 Remove filter end cover screws using 5 16 nut driver Remove filter end cover Replace air output and lint filters 5 Wash or replace air intake filter see Preventative Maintenance Schedule page 8 6 Replace filter end cover 7 Replace fan guard and upper shell IMPORTANT Do not oil filters AU A WARNING Never service heater while it is plugged in operating or hot Severe burns and electrical shock can occur Figure 7 Upper Shell Removal 35 50 55 70 000 BTU Hr Models Fan eU N Motor Motor Shaft Setscrew Figure 9 Fan Cross Section 35 50 55 70 100 110 000 BTU Hr Models Air Intake Filter Filter End Cover Fan Air Output Filter Figure 11 Air Output Air Intake and Lint Filters 35 50 55 70 000 BTU Hr Models gt Flush Upper Figure 8 Upper Shell Removal 100 110 150 000 BTU Hr Models Fan Back of Flat Surface on Motor Shaft 2 Motor Setscrew Shaft Motor Figure 10 Fan Cross Section 150 000 BTU Hr Model Air Intake Filter Filter End Fan Guard Cover Lint Filter Air
15. en White Lr White B White Green 3 Flame M Ignitor Spark Plug Terminal White Blue Blue Out Reset otor FS fH Board Control Button Red Red Photocell ij e R Red Figure 31 Wiring Diagram 35 50 55 000 BTU Hr Models Power Plug 120V 60HZ White Black Green White SE White B White Flame Ignitor Spark Plug Terminal White Blue Blue Out Reset Hj Board Control Button otoce Red Red R Red Relay Red Figure 32 Wiring Diagram 70 100 110 150 000 BTU Hr Models 099176 MAINTENANCE KITS 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 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 BTU Hr 35 000 50 000 55 000 70 000 100 000 110 000 150 000 Flame Out Control Part No HA3003 HA3003 HA3003 HA3003 HA3003 HA3003 HA3003 Spark Plug Part No HA3013 HA3013 HA3013 HA3012 HA3012 HA3012 HA3012 Filter Kit Part No HA3014 HA3014 HA3014 HA3014 HA3017 HA3017 HA3017 Nozzle Kit Part No HA3006 HA3007 HA3021 HA3008 HA3009 HA3022 HA3010
16. es 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 mini mum safe distance is 10 feet It is further recommended that these enclosure materials be of a fire retardant nature These enclosure materials shall be se curely fastened 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 vapors or high dust content Use only the electrical voltage and frequency specified on model plate Use only a three prong grounded extension cord Minimum heater clearances from combustibles Outlet 8 Ft Sides 4 Ft Top 4 Ft Rear 4 Ft Locate heater on a stable and level surface 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
17. eset Button 100 110 150 000 BTU Hr Models Continued 099176 OPERATION Continued STORAGE PREVENTATIVE MAINTENANCE SCHEDULE To Stop Heater 1 Unplug extension cord from outlet To Restart Heater 1 Wait two minutes after stopping heater 2 Repeat steps under To Start Heater page 7 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 Replace drain plug if used Add one gallon of clean kerosene to fuel tank Attach fuel cap Move heater forwards and backwards to stir fuel Remove fuel cap or drain plug and drain fuel tank Be sure all fuel is removed Replace fuel cap or drain plug Properly dispose of old and dirty fuel Store heater in dry place Make sure storage place is free of dust and corrosive fumes 90 SON EA EG 2 IMPORTANT Do not store kerosene over summer months for use during next heating season Using old fuel could damage heater A 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 How Often Flush every 150 200 hours of operation or as needed Replace every 500 hours of operation or once a year How To See Storage above See Air Output Air Intake and Lint Filters
18. losion Never use gasoline naphtha paint thinners alcohol or other highly flammable fuels Continued Fueling a Personnel involved with fueling shall be qualified and thoroughly familiar with the manufacturer s instructions and applicable federal state and local regula tions regarding the safe fueling of heating units b Only the type of fuel specified on the heater s data plate shall be used 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 struc ture f fuel storage shall be located a minimum of 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 penetra tions 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 authority hav ing jurisdiction Never use heater where gasoline paint thinner or other highly flammable vapors are present Follow all local ordinances and cod
19. per shell 45 Burner Strap La Spark Plug CR 1 Wire Spark Plug Figure 20 Spark Plug Removal 70 100 110 150 000 BTU Hr Models Bend Here to Adjust Gap Gap Figure 21 Spark Plug Gap 70 100 110 150 000 BTU Hr Models Combustion Chamber Burner Nozzle Strap Assembly Air Line Hose Fuel Line Hose Figure 22 Removing Air and Fuel Line Hoses 35 50 55 000 BTU Hr Models Nozzle Face Nozzle Figure 23 Removing Nozzle Assembly 35 50 55 000 BTU Hr Models Adapter E Fuel Line Air Line Fitting Fitting Figure 24 Nozzle and Nozzle Adapter 35 50 55 000 BTU Hr Models 099176 Nozzle 70 100 110 150 000 BTU Hr Models 1 Remove upper shell see page 10 2 Remove fan see page 10 3 Remove fuel and air line hoses from burner head 4 Remove spark plug wire from spark plug 5 Remove spark plug from burner head using 13 16 open end wrench 6 Remove three 3 screws using 5 16 nut driver and remove burner head from combustion chamber 7 Place burner head into vise and lightly tighten 8 Carefully remove nozzle from burner head using 5 8 socket wrench see Figure 26 9 Blow compressed air through face of nozzle This will free any dirt in nozzle area 10 Inspect nozzle seal for damage 11 Replace nozzle into
20. r 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 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 DESA INTERNATIONAL Corporate Headquarters 2701 Industrial Drive 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 model number and serial number 099176 01 Rev J 02 95
21. rom spark plug Clean and regap spark plug electrodes to 055 gap 10 Replace burner strap onto spark plug Rotate burner strap to position spark plug electrodes see Figure 19 page 12 i Continued 35 50 55 70 000 BTU Hr Models Shown Relief Pressure Gauge 5 Valve Plug Pressure Figure 13 Pressure Gauge Plug Removal Gauge Pump Model Pressure 35 000 BTU Hr 3 0 PSI 50 000 BTU Hr 3 6 PSI IPN 55 000 BTU Hr 3 4 PSI 70 000 BTU Hr 4 0 PSI 100 000 BTU Hr 4 0 PSI 110 000 BTU Hr 4 5 PSI Figure 14 Adjusting Pump Pressure 150 000 BTU Hr 5 0 PSI Fuel Filter Bushing and Lower Fuel Line y Upper Fuel Filter t Fuel 9 Line ao Upper Fuel Line _ Side Cover Side Cover Figure 15 Fuel Filter Removal Figure 16 Fuel Filter Removal 35 50 55 70 000 BTU Hr Models 100 110 150 000 BTU Hr Models Spark Plug Mounting Nut Burner S Strap Combustion Chamber b ark Plug Spark Plug Wire Nozzle Assembly Air Line Fuel Line Hose Hose Figure 17 Spark Plug Removal 35 50 55 000 BTU Hr Models Bend Here d Jes PES 055 Gap Figure 18 Spark Plug Gap 35 50 55 000 BTU Hr Models 099176 11 Tighten spark plug with spark plug mounting nut 12 Release hex body of spark plug from vise 13 Replace burner strap onto combustion chamber 14 Att
22. t 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 service 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 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 International will repair o
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