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MASTER LOCK 150000 BTU/Hr User Manual

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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 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.
THEORY CUTAWAY
PFA/OV 003
Fan
Fuel
Filter
Air For Fuel
System
Air For Combustion
And Heating
Fuel
Spark
Plug
Combustion
Chamber
Intake
Air
Filter
Motor
Air Pump
Air line
To Burner
Electronic
Ignitor
Burner
Head
Clean
Heated
Air Out
Cool
Air
In
Output
Air
Filter
Nozzle
Fuel
Tank
FUELS
Figure 5 - Cross Section Operational View
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
• carbon build up on spark plug
• 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.