Product Identification; Unpacking; Theory Of Operation - Desa B50H Owner's Manual

Portable forced air heater
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PRODUCT
IDENTIFICATION

UNPACKING

THEORY OF
OPERATION
4
Hot Air Outlet
Lower Shell
Fuel Tank
Side Cover
Ignition Control Assembly
(assembly on inside of
side cover)
1. Remove all packing items applied to heater for shipment.
2. Remove all items from carton.
3. Check items for shipping damage. If heater is damaged, promptly inform dealer
where you bought heater.
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 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 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.
Combustion Chamber
Clean
Heated
Air Out
Fuel
Nozzle
Tank
Air For Fuel
System
Figure 2 - Cross Section Operational View
Handle
Power Cord
Figure 1 - 50,000 Btu/Hr Model
Ignitor
Fuel
Filter
Air For Combustion
And Heating
Upper Shell
Fan Guard
Air Filter
End Cover
Fuel Cap
Motor
Air Pump
Air Intake
Fan
Filter
Cool
Air
In
Air
Output
Filter
Ignition Control
Air Line
Assembly
To Burner
Fuel
102553

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