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113170-01E
4
Figure 2 - Cross Section Operational View
THEORY OF OPERATION
The Fuel System: The air pump forces air through the air line. The air is then pushed through the
nozzle. This air causes fuel to be lifted 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 ignition control assembly provides power to the ignitor. This ignites the
fuel/air mixture in the combustion chamber.
The Flame-Out Control System: This system causes the heater to shut down if the flame goes out.
VENTILATION
WARNING: Provide a fresh air
opening of at least three square
feet (2,800 square cm) for each
100,000 BTU/HR rating. Provide
extra fresh air if more heaters
are being used. The minimum
ventilation requirements must be
followed to avoid risks associated
with carbon monoxide poisoning.
Make certain these requirements
are met prior to operating heater.
Example: A 58.6 kw (200,000 Btu/Hr) heater
requires one of the following:
• a two-car garage door [4.88 meter (16 feet)
opening] raised 12.7 cm (5 inches)
• a single-car garage door [2.74 meter (9 feet)
opening] raised 20.3 cm (8 inches)
• two, 76.2 cm (30 inch) windows raised 38.1 cm
(15 inches)
Clean
Heated
Air Out
Fuel
Filter
Air Line
To Burner
Air Output Filter
Air Pump
Air Intake Filter
Cool Air In
Fan
Combustion Chamber
Ignitor
Ignition Control
Assembly
Air For Fuel
System
Air For
Combustion
And Heating
Fuel
Nozzle
Fuel
Tank
Motor
ASSEMBLY
These models are furnished with wheels and a rear
handle. Wheels, handle and the mounting hardware
are found in the shipping carton.
Tools Needed
• Medium Phillips Screwdriver
• Rubber Mallet/Hammer
• Flat Blade Screwdriver
1. Slide axle through holes in shroud. Install
washers, wheel spacers and wheels on axle
as shown in Figure 3, page 5.
IMPORTANT: When installing wheels, point
extended hub of wheels toward shroud (see
Figure 3, page 5).
2. Place cap nuts on axle ends. Gently tap with
hammer to secure.
3. Install extension cord wraps into handle.
4. Slide handle onto shroud leaving a one inch
gap between parts.
5. Place washers onto screws and insert screws
into holes in handles.
6. Visually confirm that all six screws are
threaded into the shroud. Push the handle
completely into the shroud.
7. Tighten all screws.
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