Desa BY150ECB 150,000 Btu/Hr 110v/50 Hz - Manual (Page 4)

4 104001
PORTABLE FORCED AIR HEATER
MODEL BY150ECB 150,000 Btu/Hr
VENTILATION
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.
OPERATION
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.
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)
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.
THEORY CUTAWAY PFA/OV 003
Fuel Filter
Air For Fuel
System Air For Combustion
And Heating
Fuel
Combustion
Chamber Air Intake
Filter
Clean
Heated
Air
Out Cool
Air
In
Air
Output
Filter
Fuel
Tank
Figure 3 - Cross Section Operational View
Burner
Head
Spark
Plug
Motor
Fan
Electronic
Ignitor Air Line
To Burner Nozzle
Air Pump
FUELS
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.