Desa GK20, GK30 owner manual Fuels, Theory Of Operation, Ventilation

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FUELS VENTILATION THEORY OF OPERATION

FUELS THEORY OF OPERATION

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

•use of non-toxic anti-icer in fuel during very cold weather

IMPORTANT: Use a KEROSENE ONLY 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.

VENTILATION

WARNING: Follow the minimum fresh, outside air ventilation requirements. If proper fresh, outside air ventilation is not provided, carbon monoxide poison- ing can occur. Provide proper fresh, outside air ven- tilation before running heater.

Provide a fresh air opening of at least 2800 square cm (three square feet) for each 30kw (100,000 Btu/Hr) rating. Provide extra fresh air if more heaters are being used.

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 ignition control assembly provides power to the ignitor. This ignites the fuel/air mixture in the combus- tion chamber.

The Flame-Out Control System: This system causes the heater to shut down if the flame goes out.

Combustion		Ignitor		Motor	Air Pump
Chamber				Fan	Air Intake
					Filter
Clean
Heated					Cool
Air Out					Air In
					Air
					Output
					Filter
Fuel				Air Line	Ignition
	Nozzle		Fuel		Control
Tank			Filter	To Burner	Assembly
	Air For Fuel		Air For		Fuel
			Combustion
	System

And Heating

Figure 4 - Cross Section Operational View

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