Desa GK30 - Manual (Page 6)

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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.
THEORY OF OPERATION
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.
Figure 4 - Cross Section Operational View
Clean
Heated
Air Out
Air
Output
Filter
Air Pump
Cool
Air In
Motor
Air Intake
Filter
Fan
Combustion
Chamber
Fuel
Filter Air Line
To Burner
Ignition
Control
Assembly
Air For Fuel
System
Air For
Combustion
And Heating
Fuel
Fuel
Tank
Ignitor
Nozzle
FUELS
VENTILATION
THEORY OF OPERATION
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.
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.