Desa RM200T - Manual (Page 5)

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OWNER’S MANUAL
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.
Figure 3 - Cross Section Operational View
Fuel
Filter
Air For Fuel
System
Combustion
Chamber
Clean
Heated
Air Out
Spark
Plug
Nozzle Fuel
Tank
Air For Combustion
And Heating Fuel
Air
Intake
Filter
Cool Air
In
Air
Output
Filter
Burner
Head
Motor
Fan
Electronic
Ignitor Air Line
To Burner
Air Pump
OPERATION
TO STOP HEATER
Unplug extension cord from outlet.
TO RESTART HEATER
1. Wait two minutes after stopping heater.
2. Repeat steps under To Start Heater.
WARNING: Review and un-
derstand the warnings in the
Safety Information section, page
2. They are needed to safely op-
erate this heater. Follow all local
codes when using this heater.
TO START HEATER
1. Follow all ventilation and safety
information.
2. Fill fuel tank with kerosene or No. 1
fuel oil.
3. Attach fuel cap.
4. Plug power cord of heater into three-
prong, grounded extension cord. Exten-
sion cord must be at least six feet long.
Figure 4 - Flame-out Control Reset Button
Flame-out
Control
Reset
Button
Extension Cord Wire Size
Requirements
6 to 10 feet long, use 18 AWG rated cord
11 to 100 feet long, use 16 AWG rated cord
101 to 200 feet long, use 14 AWG rated cord
5. Plug extension cord into standard 120
volt/60 hertz, three-hole, grounded out-
let. Adjust thermostat to desired setting.
If heater does not start, thermostat set-
ting may be too low. Turn thermostat
knob to higher position to start heater.
If thermostat is in HIGH position and
heater still will not start, push in flame-
out control reset button (see Figure 4).
Note: A cold heater may affect the ther-
mostat setting. This thermostat is a gen-
eral-heating control. It is not intended
for precise temperature control. Adjust
thermostat until heater cycles at the
desired setting.