Desa KEROSENE HIGH PRESSURE PORTABLE FORCED AIR HEATERS Owner's Manual

Also see for B350D: Owner's manual Service manual Owner's manual

Contents

www.desatech.com110098-01F 3SAFETY INFORMATIONContinued17. Never use heater in living or sleeping areas.18. Never block air inlet (rear) or air outlet (front)of heater.19. Never move, handle, refuel or service a hot,operating or plugged-in heater.20. Never attach duct work to front or rear of heater.21. Never use gasoline, crankcase drainings,naphtha, paint thinners, alcohol or other highlyflammable fuels.22. Never leave a heater plugged in without adultsupervision if children or animals are likely tobe present.23. Warning to New York City Residents ForUse Only At Construction Sites in ac-cordance with applicable NYC codes underNYCFD certificate of approval #4803, #4899,#4908, #4909 or #4934 or NYC Board of Stan-dards and Appeals calendar number 62-59-5A.PRODUCTIDENTIFICATIONFigure 1 - 350,000 Btu/Hr ModelUpper ShellPowerCordThermostatFuelCap FuelTankHot AirOutletLowerShellFlame-Out ControlReset ButtonHot AirOutletFigure 2 - 600,000 Btu/Hr ModelPowerCordFuel TankUpper ShellFuel CapThermostatLowerShellFlame-Out ControlReset ButtonUNPACKING1. Remove all protective packing applied toheater for shipment.2. Remove heater from shipping container.3. Check heater for any shipping damage. Ifheater is damaged, promptly inform dealerwhere you bought heater.OPERATIONThe Fuel System: The motor turns the fuel pump.The fuel pump pulls fuel from the fuel tank.The fuel pump pushes fuel through a filter and asolenoid valve and out the burner head nozzle. Afine mist of fuel is sprayed into the combustionchamber.The Air System: The motor turns the fan. Thefan pushes air into and around the combustionchamber. This air is heated and provides a streamof clean, hot air.The Ignition System: The electronic ignitor sendsvoltage to the spark plug. The spark plug ignitesthe fuel and air mixture.The Flame-Out Control System: This systemcauses the heater to shut down if the flame goesout. It also allows the fan to continue runningafter normal shutdown of heater. This cools thecombustion chamber.Figure 3 - Cross Section OperationalViewFanCleanHeatedAir OutCombustionChamber SparkPlugBurnerHeadSolenoid ValveMotorElectronicIgnitorFuel Tank NozzleFuelAir forCombustionand HeatingFuel Line ToSolenoid Valve FuelFilterFuelPickupLineCoolAir InFuel Pump/Fuel Filter