Kerosene Portable Heaters - Mi-T-M Hot Water Pressure .

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KerosenePortable HeatersOPERATOR'S 0M10 CUS247218CAUTIONRISK OF INJURY! READ ENTIRE MANUAL BEFORE OPERATING!THIS MANUAL IS AN IMPORTANT PART OF THE PORTABLE HEATERAND MUST REMAIN WITH THIS UNIT! Copyright2009, Mi-T-MKerosene PortableHeatersCorporation Manual37-1061-E/F/S-0713151

TABLE OF CONTENTSINTRODUCTION.3IMPORTANT!.3IMPORTANT SAFETY INSTRUCTIONS.4PORTABLE HEATER FEATURES.9PORTABLE HEATER SPECIFICATIONS.10ASSEMBLY.10HARDWARE COMPONENTS.10FRAME COMPONENTS.10ASSEMBLY MH-0075-0M10 MODEL.11ASSEMBLING HANDLE.11ASSEMBLING CORDWRAP.11ASSEMBLY FOR MH-0135-0M10, MH-0190-0M10, MH-0215-0M10 MODELS.11ASSEMBLING FRAME AND WHEELS.11ASSEMBLING CORDWRAP.11OPERATION.12FUELING THE HEATER.12KEROSENE (#1-K).12THEORY OF OPERATION.12VENTILATION.12TO START THE HEATER.13TO STOP THE HEATER.13TO RESTART THE HEATER.13LONG TERM STORAGE.14DRAIN FUEL TANK.14MAINTENANCE.15FUEL TANK:.15AIR FILTERS:.15FAN BLADES:.15NOZZLES:.15SPARK PLUG:.16PHOTOCELL:.16FUEL FILTER:.16PUMP PRESSURE ADJUSTMENT:.17TROUBLESHOOTING.18STATEMENT OF WARRANTY.19EXCLUSIONS.19Warning: This product contains lead, achemical known to the State of Californiato cause birth defects or other reproductiveharm.Wash your hands after handling this product.2Kerosene Portable Heaters Manual

INTRODUCTIONCongratulations on the purchase of your new Mi-T-M Portable Heater! You can be assured your Mi-T-M Portable Heater was constructed with the highest level of precision and accuracy. Each component hasbeen rigorously tested by technicians to ensure the quality, endurance and performance of this heater.This operator's manual was compiled for your benefit. By reading and following the simple safety, installation and operation, maintenance and troubleshooting steps described in this manual, you will receive yearsof troublefree operation from your new Portable Heater. The contents of this manual are based on the latestproduct information available at the time of publication. The Manufacturer reserves the right to make changes in price, color, materials equipment, specifications or models at any time without notice.IMPORTANT!A "DANGER, WARNING or CAUTION" safety warning will be surrounded by a "SAFETY ALERT BOX". Thisbox is used to designate and emphasize Safety Warnings that must be followed when operating this heater.Accompanying the safety warnings are "Signal Words" which designate the degree or level of hazard seriousness. The "Signal Words" used in this manual are as follows:DANGER: INDICATES AN IMMINENTLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, WILLRESULT IN DEATH OR SERIOUS INJURY.WARNING: INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED,COULD RESULT IN DEATH OR SERIOUS INJURY.CAUTION: INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED MAYRESULT IN MINOR OR MODERATE INJURY OR DAMAGE TO THE HEATER.The symbols set below are "Safety Alert Symbols". These symbols are used to call attention to items orprocedures that could be dangerous to you or other persons using this equipment.ALWAYS PROVIDE A COPY OF THIS MANUAL TO ANYONE USING THIS EQUIPMENT. READ ALLINSTRUCTIONS IN THIS MANUAL AND ANY INSTRUCTIONS SUPPLIED BY MANUFACTURERSOF SUPPORTING EQUIPMENT BEFORE OPERATING THE PORTABLE HEATER AND ESPECIALLYPOINT OUT THE "SAFETY WARNINGS" TO PREVENT THE POSSIBILITY OF PERSONAL INJURYTO THE OPERATOR.Once the unit has been uncrated, immediately write in the serial number of your unit in the space providedbelow.SERIAL NUMBERInspect for signs of obvious or concealed freight damage. If damage does exist, file a claim with the transportation company immediately. Be sure that all damaged parts are replaced an that the mechanical andelectrical problems are corrected prior to operation of the unit. If you require service, contact Mi-T-M Customer Service.Mi-T-M Corporation, 8650 Enterprise Drive, Peosta, IA 52068563-556-7484 / 800-553-9053 / Fax 563-556-1235Monday - Friday 8:00 a.m. - 5:00 p.m. CSTPlease have the following information available for all service calls:1. Model Number2. Serial Number3. Date and Place of PurchaseKerosene Portable Heaters Manual3

IMPORTANT SAFETY INSTRUCTIONSREAD ALL SAFETY WARNINGS BEFORE USING PORTABLE HEATERHazardRISK OF ELECTRICSHOCK ORELECTROCUTIONPotential ConsequenceSerious injury or death couldoccur if the portable heater isnot properly grounded. Yourheater is powered by electricityand may cause electric shock orelectrocution if not used properly.PreventionInstallation of this unit, includingall electrical connections, mustcomply with all local, state andnational codes.This product must be grounded.Connect to a GFCI circuit breakerwhen available. If the unit shouldmalfunction or breakdown,grounding provides a path of leastresistance for electric current to reduce the risk of electric shock. Donot ground to a gas supply line.Improper connection of theequipment-grounding conductorcan result in a risk of electrocution. Check with a qualified electrician or service personnel if youare in doubt as to whether thesystem is properly grounded.Always be certain the unit is receiving proper voltage. Specifiedon the model plate of the heater.Use only a three-prong, grundedoutlet and extension cord.Electrical shock may occur if theheater is not operated properly.Serious injury or death mayoccur if electrical repairs are attempted by unqualified persons.Keep all connections dry andinstall the heater so that it is notdirectly exposed to water spray,rain, drinpping water or wind.Any electrical wiring or repairsperformed on this heater shouldbe done by Authorized ServicePersonnel in accordance with National and Local electrical codes.Always unplug the heater whennot in use.RISK OF BURNSSerious injury could occur fromtouching exposed metal parts.These areas can remain hot forsome time after the heater isturned off.4Never allow any part of your bodyor other materials to make contact with any exposed metal partson the heater.Kerosene Portable Heaters Manual

IMPORTANT SAFETY INSTRUCTIONSHazardRISK OF EXPLOSION ORFIREPotential ConsequencePreventionSerious injury or death mayoccur from normal electricalsparks in motor and pressureswitchAlways operate portable heaterin a well ventilated area free offlammable vapors, combustibledust, gases or other combustiblematerials.Serious injury may occur ifthe heater air inlet or outlet isblocked.Never place objects in front of airinlet (rear) or air outlet (front) ofheater. Never use duct work infront or at rear of heater. Keep allcombustible material away fromthis heater.Serious injury or death may occur if improper fuels are used, ifheater is running while refilling.Never use fuels such as gasoline,benzene, paint thinners, or otheroil compounds in this heater.Never refill the heater's fuel tankwhile heater is operating or stillhot. This heater is EXTREMELYHOT while in operation.Never transport heater with fuelin its tank.Bulk fuel storage should be aminimum of 25 ft. from heaters,torches, portable generators, orother sources of ignition. All fuelstorage should be in accordancewith federal, state, or local authorities having jurisdiction.Serious injury may occur ifheater is not placed on levelsurface and is kept away fromchildren and animals.Never move or handle heaterwhile still hot.If equipped with a thermostat,the heater may start at any time.Always locate heater on a stableand level surface away from children and animals.Kerosene Portable Heaters Manual5

IMPORTANT SAFETY INSTRUCTIONSHazardRISK TO BREATHINGPotential ConsequenceSerious injury or death couldoccur from failure to provideproper ventilation according tothis manual.PreventionThis is a kerosene, direct-fired,forced air heater. It is primarily intended for use for temporary heating of buildings underconstruction,alteration or repair.Direct-fired means that all ofthe combustion products of theheater enter the heated space.This appliance is rated at 98%combustion efficiency, but doesproduce small amounts of carbonmonoxide. Carbon monoxide istoxic. Humans can tolerate smallamounts of carbon monoxide,and precautions should be takento provide proper ventilation.Early signs of carbon monoxide poisoning resemble the flu.Symptoms of improper ventilation are: * headache * dizziness* burning of the nose and eyes *nausea * dry mouth * sore throatUse this heater only in well ventilated areas! Provide at least athree square foot (2,800 sq cm)opening of outside air for every100,000 BTU/hr of heater rating.People with breathing problemsshould consult a physician beforeusing the heater.Carbon Monoxide Poisoning:Early signs of carbon monoxide poisoning resemble flu-likesymptoms such as headaches,dizziness, and/or nausea. If youhave these symptoms, your heater may not be working properly.Get fresh air at once! Have theheater serviced. Some people aremore affected by carbon monoxide than others. These includepregnant women, those withheart or lung problems,anemia,or those under the influence ofalcohol, or at high altitudes.Never use this heater in living orsleeping areas.6Kerosene Portable Heaters Manual

IMPORTANT SAFETY INSTRUCTIONSFIRE, BURN, INHALATION, AND EXPLOSION HAZARD. KEEP COMBUSTIBLES, SUCH ASBUILDING MATERIALS, PAPER OR CARDBOARD, A SAFE DISTANCE AWAY FROM THEHEATER AS RECOMMENDED BY THESE INSTRUCTIONS. NEVER USE THE HEATER INSPACES WHICH CONTAIN PRODUCTS SUCH AS GASOLINE, SOLVENTS, PAINT THINNERS,DUST PARTICLES, VOLATILE OR AIRBORNE COMBUSTIBLES, OR ANY UNKNOWNCHEMICALS. THIS IS AN UNVENTED PORTABLE HEATER. IT USES AIR (OXYGEN) FROM THEAREA IN WHICH IT IS USED. ADEQUATE COMBUSTION AND VENTILATION AIR MUST BEPROVIDED. REFER TO VENTILATION.CALIFORNIA RESIDENTS: COMBUSTION BY-PRODUCTS PRODUCED WHEN USING THISPRODUCT CONTAIN CARBON MONOXIDE, A CHEMICAL KNOWN TO THE STATE OFCALIFORNIA TO CAUSE CANCER AND BIRTH DEFECTS (OR OTHER REPRODUCTIVE HARM).DO NOT OPERATE THIS HEATER UNTIL YOU HAVE READ, AND THOROUGHLY UNDERSTANDTHESE SAFETY AND OPERATING INSTRUCTION. FAILURE TO COMPLY WITH THEPRECAUTIONS AND INSTRUCTIONS PROVIDED WITH THIS HEATER CAN RESULT IN DEATH,SERIOUS BODILY INJURY, PROPERTY LOSS OR DAMAGE FROM THE HAZARDS OF FIRE,EXPLOSION, BURNS, ASPHYXIATION OR CARBON MONOXIDE POISONING. ONLY PERSONSWHO CAN READ AND UNDERSTAND THESE INSTRUCTIONS SHOULD USE OR SERVICE THISHEATER.NOT FOR USE IN HOMES OR RECREATIONAL VEHICLES.MASSACHUSETTS RESIDENTS: MASSACHUSETTS STATE LAW PROHIBITS THE USE OF THISHEATER IN ANY BUILDING WHICH IS USED IN WHOLE OR IN PART FOR HUMAN HABITATION.USE OF THIS HEATING DEVICE IN MASSACHUSETTS REQUIRES LOCAL FIRE DEPARTMENTPERMIT (M.G.L.C.148, SECTION 10A).CALIFORNIA RESIDENTS: THIS HEATER PRODUCES CARBON MONOXIDE, WHICH IS LISTEDBY THE STATE OF CALIFORNIA AS A REPRODUCTIVE TOXIN UNDER PROPOSITION 65. NOTFOR USE IN HOMES OR RECREATIONAL VEHICLES.THE NEW YORK CITY FIRE CODE PROHIBITS THE STORAGE, HANDLING AND USE OFKEROSENE FUELED HEATERS FOR SPACE HEATING. ANY PERSON VIOLATINGTHAT PROVISION MAY BE PUNISHED BY A FINE OF UP TO 10,000 AND A TERM OFIMPRISONMENT UP TO 6 MONTHS.NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR WHILE CONNECTED TO A FUELSOURCE.! SAVE THESE INSTRUCTIONS !Kerosene Portable Heaters Manual7

WARNINGTHE FOLLOWING PAGES CONTAIN OPERATING ANDMAINTENANCE INSTRUCTIONS.DO NOT ATTEMPT TO OPERATE THIS PORTABLE HEATERUNTIL YOU HAVE READ AND UNDERSTOOD ALL SAFETYPRECAUTIONS AND INSTRUCTIONS LISTED IN THIS MANUAL.INCORRECT OPERATION OF THIS UNIT CAN CAUSE SERIOUSINJURY!!DO NOT ALTER OR MODIFY THIS EQUIPMENTIN ANY MANNER!NEVER LEAVE HEATER UNATTENDED WHILE BURNING ORWHILE CONNECTED TO A FUEL SOURCE.8Kerosene Portable Heaters Manual

PORTABLE HEATER FEATURESModel shown MH-0075-0M10Upper ShellHot Air OutletExtension Cord WrapHandleElectric Outlet(120V 5amp max non fused)Lower ShellFan GuardSide Cover LampPressure GaugeFuel GaugeThermostat KnobPower/Reset SwitchFuel CapPower CordFuel TankModels shown MH-0135-0M10, MH-0190-0M10, MH-0215-0M10Front HandleHot Air OutletUpper ShellRear HandleDigitalTemperatureDisplayFan GuardExtensionCord WrapLower ShellPressureGaugeFuel GaugeFuel CapStorage DrawerSide CoverFuel TankDrain PlugLampThermostat KnobPower CordElectric Outlet(120V 5amp maxnon fused)Power/Reset SwitchKerosene Portable Heaters Manual9

PORTABLE HEATER SPECIFICATIONSModelMH-0075-0M10 MH-0135-0M10Rating 215,000Fuel Comsumption Gal/Hr0.561.01.421.63Fuel Tank Capacity Gallons5.010.013.013.0Pump PressurePSI4.25.58.59.0120VAC/ 60 Hz120VAC/ 60 Hz120VAC/ 60 Hz120VAC/ 60 e (L x W x H)30" x 13" x 15"37" x 22" x 25"42" x 24" x 26"42" x 24" x 26"Net Weight (Lbs)28515861Volt/HzMinimum clearance from H-0215-0M10Top4 ft.4 ft.4 ft.4 ft.Sides4 ft.4 ft.4 ft.4 ft.Front8 ft.8 ft.8 ft.8 ft.ASSEMBLYHARDWARE COMPONENTS50 mm Screws (4)30 mm Screws (8)8 mm Nuts (12)Tires (2)Cord Wraps (2)Axle Nuts (2)Spacers (2) Washers (2)Spare Drain Plug (1)FRAME COMPONENTSWheel Support FrameRear HandleFront Handle10AxleKerosene Portable Heaters Manual

ASSEMBLYNote: Different models require different assembliesNote: Tools required for MH-0075-0M10 models: medium phillips screw driver.Note: Tools required for MH-0135-0M10, MH-0190-0M10, MH-0215-0M10 models: medium phillips screw driver, 5/16" openend or adjustable wrench, needle nose pliers.HandleASSEMBLY FOR MH-0075-0M10 MODELScrewASSEMBLING HANDLE1. Align the holes in the upper housing with the 2 holes in the handleas shown.2. Insert and tighten screws securely with screw driver.ASSEMBLING CORDWRAP1. Insert tabs on cordwrap into slots in shell support, lining up the holes on the cordwrap with those on theside cover.2. Insert and tighten screws securely with screw driver.ASSEMBLY FOR MH-0135-0M10, MH-0190-0M10, MH-0215-0M10 MODELSASSEMBLING FRAME AND WHEELSWheel Support FrameHandleTireCord WrapsHot AirOutletAxleAxle NutSpacerAir Inlet1. Insert axle through holes in wheel support.2. Slide then spacer onto axle.3. Slide wheel onto axle with the air valve facing outand hold in place with the axle nuts.4. Place heater on the assembled frame, makingsure that the air inlet end is by the wheels, and themounting holes on the tank flange of the heateralign with holes in frame.5. Take the front handle and align the mounting holeswith the corresponding holes in the tank flange/wheel frame. Slide a screw through the holes andloosely attach a nut. Repeat for the other 3 holes,then fully tighten all 4 screws and nuts.6. Repeat this process with the rear handle.Kerosene Portable Heaters ManualFuel Tank FlangeWheelSupportFrameNutThermostat KnobAxleWheel Tube ValveWheel (Pneumatic)11

OPERATIONASSEMBLING CORDWRAPCAUTION: DO NOT OPERATE HEATER WITHOUT SUPPORT FRAME FULLY ASSEMBLED TOTANK.1. Align holes in cordwrap with corresponding holes in rear handle. Insert screws through holes, attach nutsand tighten.2. Do not operate heater without support frame fully assembled to tank.NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR WHILE CONNECTED TO A FUELSOURCE.FUELING THE HEATERCAUTION: NEVER FILL THE FUEL TANK INDOORS. ALWAYS FILL THE TANK OUTDOORS. BESURE THAT THE HEATER IS ON LEVEL GROUND WHEN FUELING, AND NEVER OVERFILLTHE FUEL TANK.It is always a good idea to fire the heater outdoors for the first time. This will allow any oils used in themanufacturing process to be burned off in a safe environment. This initial burn should last at least 10minutesKEROSENE (#1-K)For optimal performance of this heater, it is strongly suggested that #1-K kerosene be used. #1-K kerosene has been refined to virtually eliminate contaminants, such as sulfur, which can cause a rotten eggodor during the operation of the heater. However, #1, #2 (diesel fuel), JP-8 or Jet A fuel oil may also beused if #1-K kerosene is not available. Be advised that these fuels do not burn as clean as #1-K kerosene, and care should be taken to provide more fresh air ventilation to accommodate any added contaminants that may be added to the heated space.WARNING: DO NOT USE BIO-DIESEL AS THIS FUEL WILL DAMAGE YOUR HEATER'S SEALS ANDFILTER. CSA CERTIFIED FOR USE WITH 1-K KEROSENE, NO. 1 AND NO. 2 DIESEL, JP8/JET AFUEL, NO. 1 AND NO. 2 FUEL OIL.NOTE: Kerosene should only be stored in a blue container that is clearly marked “kerosene”.Never store kerosene in a red container. Red is associated with gasoline. NEVER store kerosene in the living space. Kerosene should be stored in a well ventilated area outside the living area. NEVER use fuel such as gasoline, benzene, alcohol, white gas, camp stove fuel, paint thinners, orother oil compounds in this heater (THESE ARE VOLATILE FUELS THAT CAN CAUSE A FIRE OREXPLOSION). NEVER store kerosene in direct sunlight or near a source of heat. NEVER use kerosene that has been stored from one season to the next. Kerosene deteriorates overtime. OLD KEROSENE WILL NOT BURN PROPERLY IN THIS HEATER. Use #1-K kerosene in this heater. #1, #2 (diesel fuel), JP-8, or Jet A fuel oil is a suitable substitute.12Kerosene Portable Heaters Manual

OPERATIONNEVER LEAVE HEATER UNATTENDED WHILE BURNING OR WHILE CONNECTED TO A FUELSOURCE.THEORY OF OPERATIONFuel System: This heater is equipped with an airpump that operates off of the electric motor. Thepump forces air through the air line connectedto the fuel tank, drawing fuel to the nozzle in theburner head. Air also passes through the nozzlewhere it mixes with the fuel and is sprayed into thecombustion chamber in a fine mist.Quick-Fire Ignition: A transformer sends highvoltage to a two pronged spark plug. The sparkignites the fuel/air mixture as it is sprayed into thecombustion chamber.Air System: A fan is turned by the heavy duty motor, which forces air around and into the combustionchamber, where it is super-heated and forced out the front of the chamber.Temperature Limit Control: This heater is equipped with a Temperature Limit Control designed to turnthe heater off should the internal temperature rise to an unsafe level. If this device activates and turnsyour heater off, it may require service. Once the temperature falls below the reset temperature, you willbe able to start your heater.Electrical System Protection: The heaters’ electrical system is protected by a circuit breaker that protects the system components from damage. If the heater fails, check the fuse first, and replace if necessary.Flame Sensor: The heater uses a photocell to “see” the flame in the combustion chamber. Should theflame extinguish, the sensor will stop electrical current and the heater will shut off.VENTILATIONRisk of indoor air pollution. Use heater only in well ventilated areas. Always provide a fresh air opening inthe heated space of at least three square feet (2,800 sq. cm) for each 100,000 BTU/Hr. of heater output.Provide a larger opening if more heaters are being used. As an example, an MH-0215-0M10 heater willrequire: a two-car garage door open 6 inches, or a single car garage open 9 inches, or two thirty two inch wide windows open fifteen inches.TO START THE HEATER1. Fill the tank with kerosene until fuel gauge points to “F”.2. Be sure fuel cap is secure.3. Plug power cord into three prong, grounded extension cordand plug extension cord into three prong 120V groundedoutlet.LampRoom TemperatureDisplayThe extension cord should be at least six feet long.Minimum extension cord wire size requirements are asfollows: 6 to 10 feet (1.8 to 3 meters), use 18 AWG wire. 11 to 100 feet (3.4 to 30.4 meters), use 16 AWG wire. 101 to 200 feet (30.8 to 61 meters), use 14 AWG wire.Power SwitchThermostat Control Knob4. Turn thermostat control knob to desired temperature setting. The setting range is from 40 F to 110 F.Push the Power switch to the “ON” position. The power indicator lamp and room temperature displayKerosene Portable Heaters Manual13

OPERATION(MH-0135-0M10/MH-0190-0M10/MH-0215-0M10 only) will light and theheater will start.NOTE: The room temperature display (MH-0135-0M10/MH-0190-0M10/MH-0215-0M10only) will indicate the following: When temperature is less than 0 F, display says “LO”. When temperature is above 99 F, display says “HI”. Between 0 and 99 F display shows actual temperature.Power SwitchIf the heater does not fire, the thermostat may be set too low. Turn theControl Knob to a higher setting until heater fires. If the heater still does not start, push Power Switch to“OFF”, then back to “ON”. If heater still does not fire, see Troubleshooting Guide.NOTE: The electrical components of this heater are protected by a fuse mounted in the PC board. If the heater fails to fire,check this fuse first, and replace if necessary. Also check the power source to be sure that the proper voltage is beingprovided to the heater.NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR WHILE CONNECTED TO A FUELSOURCE.Note: Using Diesel fuel can cause excess soot productionTO STOP THE HEATERSimply turn the Power switch to “OFF” position and unplug the Power Cord.TO RESTART THE HEATER1. Wait ten seconds after shutting off heater.2. Turn the Power Switch to “ON” position.3. Be sure to follow all starting procedureprecautions.LONG TERM STORAGEDRAIN FUEL TANKStorage DrawerElectrical OutletMH-0135-0M10 / MH-0190-0M10 / MH-0215-0M10 ONLYFor model MH-0075-0M10, drain fuel through the fuel cap opening. For models MH-0135-0M10/MH0190-0M10/MH-0215-0M10, drain fuel through the Drain Plug at the bottom of the Fuel Tank.1. To remove the Drain Plug (MH-0135-0M10/MH-0190-0M10/MH-0215-0M10), pull the Plug Grip downwardand remove seal head from drain hole in tank.2. Using a small amount ofkerosene, rinse and swirl thekerosene inside of the FuelDrain PlugPlug GripTank. Empty the tank fully.Fuel Tank3. To replace, push the drain headSeal Headfully into the drain hole andsecure by pushing the seal capHead Flangefully into the head hole.IMPORTANT: Never store leftoverkerosene over the summer.Using old fuel can damageHead Flangeyour heater.Drain PlugCap FlangeStore heater in a dry, wellventilated area Be sure thatSeal Capthe storage area is free ofdust and corrosive vapors.Repack the heater in the original shipping material. Keep the Users Manual in an easily accessible place.14Kerosene Portable Heaters Manual

MAINTENANCEWARNING: NEVER SERVICE HEATER WHILE IT IS PLUGGED IN OR WHILE HOT!Use only original equipment replacement parts. The use of alternate or third party components can causeunsafe operating conditions, and will void your warranty.We suggest following a maintenance schedule as follows:FUEL TANK:Flush every 200 hours of operation or as needed. Donot use water to flush the tank. Use fresh #1-K kerosene only.AIR FILTERS:Air OutputFilterThe Air Intake Filter should be replaced or washedwith soap and water and dried thoroughly every 500hours of operation, or less, depending on conditions.The Output and Lint Filters should be replaced every500 hours of operation or less, depending on conditions.WARNING: USING HEATER WITHOUT PROPERMAINTENANCE CAN LEAD TO IMPROPERCOMBUSTION AND SOOT PRODUICTIONIntake FilterLint FilterEnd Filter CoverNEVER LEAVE HEATER UNATTENDED WHILEBURNING OR WHILE CONNECTED TO A FUELSOURCE.Set ScrewFAN BLADES:Blades should be cleaned at least once per heatingseason, depending on conditions. Remove all accumulated dust and dirt with a damp cloth, taking carenot to bend any of the fan blades. Be sure fan bladesare dry before re-starting the heater.Motor ShaftFan BladeNOZZLES:Nozzles should be cleaned or replaced at least once per heating season. Contaminated fuel could makethis necessary immediately.To clean dirt from nozzle, blow compressed air through nozzle front. It may be necessary to soak nozzlein clean #1-K kerosene to help loosen any particles.Burner HeadBurner HeadNozzleScrewSpark PlugNozzle FaceIgnitor WireFuel Line FittingFuel Line HoseAir Line FittingAir Line HoseKerosene Portable Heaters Manual15

MAINTENANCESPARK PLUG:Clean and re-gap every 600 hours of operation, or replaceas needed.After removing the Spark Plug, clean the terminals with a wire brush. Re-gap the terminals to 0.140”(3.5mm).Spark PlugNEVER LEAVE HEATER UNATTENDED WHILEBURNING OR WHILE CONNECTED TO A FUELSOURCE.Ignitor WireGapIMPROPER MAINTENANCE CAN LEAD TO POORCOMBUSTION AND SOOT PRODUCTIONBurner HeadPHOTOCELL:The Photocell should be cleaned at least once per heating season or more depending on conditions.Use a cotton swap dipped in water or alcohol to clean the lens of the Photocell. Note the proper Photocell position as g PhotocellCircuit Board1.)Incorrect(MH-0075-0M10 only)2.)CorrectFUEL FILTER:The Fuel Filter should be cleaned at least twice per heating season by rinsing it in clean #1-K kerosene.Contaminated fuel could make this necessary immediately.NOTE: To remove the filter from model MH-0075-0M10, turn filter 90 clockwise. To remove the filter from models MH-01350M10 / MH-0190-0M10 / MH-02150M10, turn filter 90 counter-clockwise.Photocell WireCircuit BoardFuel FilterScrewFuel LineSide CoverPower Switch16Power Switch WireKerosene Portable Heaters Manual

MAINTENANCEPUMP PRESSURE ADJUSTMENT:While heater is operating, turn relief valve clockwise to increase, counterclockwise to decrease. Use flatblade screwdriver to turn valve. Correct pump pressure is as follows:Model #Pump PressureMH-0075-0M104.0 PSIMH-0135-0M105.0 PSIMH-0190-0M107.5 PSIMH-0215-0M109.0 PSITolerance 10%For best measurement of pressure, test with full tank of fuel. Optimum pressure occurs when the nosecone is cherry red and there are no extending flames from the heater.Pressure ValveAdjusting ScrewNEVER LEAVE HEATER UNATTENDED WHILE BURNING OR WHILE CONNECTED TO A FUELSOURCE.CONTROL PCBCONTROL PCBBLACK SPARKPLUGCN4POWER ACKCN2BLUELIMITC

heater. Never use duct work in front or at rear of heater. Keep all combustible material away from this heater. Never use fuels such as gasoline, benzene, paint thinners, or other oil compounds in this heater. Never refill the heater's fuel tank while heater is operating or still hot. This heater

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