Theory Of Operation; Assembly - Desa RH125TH Owner's Manual

THEORY OF OPERATION

4

ASSEMBLY

THEORY OF OPERATION
The air pump forces air through the air line. The
The Fuel System:
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 combustion
chamber.
The motor turns the fan. The fan pushes air into
The Air System:
and around the combustion chamber. This air is heated and provides
a stream of clean, hot air.
The ignition control assembly provides
The Ignition System:
power to the ignitor. This ignites the fuel/air mixture in the combus-
tion chamber.
The Flame-Out Control System:
shut down if the flame goes out.
Combustion Chamber
Clean
Heated
Air Out
Fuel
Nozzle
Tank
Air For Fuel System
Figure 2 - Cross Section Operational View
This system causes the heater to
Motor
Ignitor
Fan
Air Line
Fuel Filter
To Burner
Air For Combustion
And Heating
For more information, visit www.desatech.com
For more information, visit www.desatech.com
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. Apply a couple drops of oil in shroud axle holes. Slide axle
through shroud with a twisting motion. Install washers and
wheels on axle as shown in Figure 3.
IMPORTANT: When installing wheels, point extended hub of
wheels toward shroud (see Figure 3).
2. Place cap nuts on axle ends. Gently tap with hammer to secure.
Air Pump
3. Install extension cord wraps into handle.
Air Intake
4. Slide handle onto shroud leaving a one inch gap between parts.
Filter
5. Place washers onto screws and insert screws into holes in
handles.
Cool
6. Visually confirm that all six screws are threaded into nuts in
Air In
the shroud. Push the handle completely into the shroud.
Air
7. Tighten all scews.
Output
Filter
Hot Air Outlet
Ignition
Control
Assembly
Fuel
Shroud
Shroud
Axle Hole
Axle
Wheel
Cap Nut
Figure 3 - Wheel and Handle Assembly
Air Inlet
Extended Hub
Screw
Washer
Handle
Rear Panel
Washer
Extension
Cord Wrap
112865-01A