Desa 10BY150ECB owner manual Theory Of Operation, Fuels, Ventilation, To Start Heater

MODEL BY150ECB 150,000 Btu/Hr

PORTABLE FORCED AIR HEATER

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 combus- tion 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 electronic ignitor sends voltage to the spark plug. The spark plug ignites the fuel and air mixture.

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

Combustion

Chamber

Clean

Heated

Air

Out

Fuel Nozzle

Tank

Air For Fuel

System

Spark		Motor	Air Pump
	Burner		Air Intake
Plug		Fan
	Head		Filter

Cool

Air

In

Air

Output

Filter

Fuel Filter	Air Line	Electronic
	To Burner	Ignitor

Air For Combustion	Fuel
And Heating

Figure 3 - Cross Section Operational View

FUELS VENTILATION OPERATION

WARNING: Use only kerosene or No. 1 fuel oil to avoid risk of fire or explosion. Never use gaso- line, naphtha, paint thinners, al- cohol, 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

•carbon build up on spark plug

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

IMPORTANT: Use a KEROSENE ONLY storage 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: Follow the mini- mum fresh, outside air ventila- tion requirements. If proper fresh, outside air ventilation is not pro- vided, carbon monoxide poison- ing can occur. Provide proper fresh, outside air ventilation be- fore running heater.

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

Example: A 150,000 Btu/Hr heater re- quires one of the following:

•a two-car garage door raised 15 cm (six inches)

•a single-car garage door raised 23 cm (nine inches)

•two, 76 cm (thirty-inch) windows raised 31 cm (twelve inches)

WARNING: Review and un- derstand the warnings in the Safety Information Section, pages 2 and 3. They are needed to safely operate this heater. Follow all lo- cal codes when using this heater.

TO START HEATER

1.Follow all ventilation and safety infor- mation.

2.Fill fuel tank with kerosene or No. 1 fuel oil.

3.Attach fuel cap.

4.Plug power cord of heater into standard 110 volt/50 hertz, grounded (earthed) outlet. Use an extension cord if needed. Use only a three-prong, grounded (earthed) extension cord.

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