Desa B70D Owner's Manual

Contents

3103685OWNER’S MANUALFigure 2 - Cross Section Operational ViewCleanHeatedAir OutFigure 1 - 70,000 Btu/HrHandleFuel CapLower ShellPower CordFuel TankHot Air OutletAir FilterEnd CoverFan GuardUpper ShellSide CoverIgnition Control Assembly(assembly on inside of side cover)UNPACKING1. Remove all packing items applied toheater for shipment.2. Remove all items from carton.3. Check items for shipping damage. Ifheater is damaged, promptly informdealer where you bought heater.PRODUCT IDENTIFICATIONThe Fuel System: The air pump forcesair through the air line. The air is thenpushed through the nozzle. This air causesfuel to lift from the tank. A fine mist of fuelis sprayed into the combustion chamber.The Air System: The motor turns the fan.The fan pushes air into and around thecombustion chamber. This air is heated andprovides a stream of clean, hot air.The Ignition System: The ignition con-trol assembly provides power to the ignitor.This ignites the fuel/air mixture in the com-bustion chamber.The Flame-Out Control System: Thissystem causes the heater to shut down if theflame goes out.FuelFilterAir LineTo BurnerAirOutputFilterAir PumpAir IntakeFilterCoolAir InFanCombustion ChamberIgnitorMotorIgnition ControlAssemblyAir For Fuel System Air For CombustionAnd Heating FuelNozzleFuelTankTHEORY OF OPERATION