Desa D20H Owner's Manual
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5105843OWNER’S MANUALOPERATIONWARNING: Review and un-derstand the warnings in theSafety Information section, page2. They are needed to safely op-erate this heater. Follow all localcodes when using this heater.TO START HEATER1. Follow all ventilation and safety infor-mation.2. Fill fuel tank with kerosene or No. 1fuel oil.3. Attach fuel cap.4. Plug power cord of heater into standard230 volt/50 hertz, grounded (earthed)outlet. Use an extension cord if needed.Use only a three-prong, grounded(earthed) extension cord.Figure 5 - ON/OFF Switch, D20H ModelFigure 6 - ON/OFF Switch, D30H andD44H ModelsTHEORY OFOPERATIONThe Fuel SystemThe air pump forces air through the air line.The air is then pushed through the burnerhead nozzle. This air causes fuel to lift fromthe tank. A fine mist of fuel is sprayed intothe combustion chamber.The Air SystemThe motor turns the fan. The fan pushes airinto and around the combustion chamber.This air is heated and provides a stream ofclean, hot air.The Ignition SystemThe ignition control assembly providespower to the ignitor. This ignites the fuel/airmixture in the combustion chamber.The Flame-Out Control SystemThis system causes the heater to shut downif the flame goes out.Extension Cord Wire SizeRequirementsUp to 30.5 meters (100 feet) long, use 1.0mm2 (16 AWG) conductor30.6 to 61 meters (101 to 200 feet) long, use1.5 mm2 (14 AWG) conductorPush ON/OFF switch to ON (|) position andheater should start in 5 seconds. If heaterdoes not start, see Troubleshooting (page 7).TO STOP HEATER1. Push ON/OFF switch to OFF (O)position.TO RESET HEATER1. Push ON/OFF switch to OFF (O) posi-tion and wait 10 seconds (2 minutes ifheater has been running).2. Repeat steps under To Start Heater.Figure 4 - Cross Section Operational View|OON/OFF Switch|OON/OFF SwitchCleanHeatedAir OutFuelFilter Air LineTo BurnerAirOutputFilterAir PumpAir IntakeFilterCoolAirInFanCombustion ChamberIgnitorMotorIgnition ControlAssemblyAir For Fuel System Air For CombustionAnd Heating FuelNozzleFuelTank |
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