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7
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
5. OVERVIEW OF HEATERS DESIGN
Fuel System:
This heater is equipped with an
electric air pump that forces air through the air line
connected to the fuel intake and then through a
nozzle in the burner head. When the air passes in
front of the fuel intake it causes fuel to rise from the tank and into the burner nozzle. This fuel and air
mixture is then sprayed into the combustion chamber in a fine mist.
“Sure Fire Ignition”: The electronic ignitor sends voltage to a specially designed spark plug.
The spark plug ignites the fuel and air mixture described above.
The Air System:
The heavy duty motor turns a fan that forces air into and around the
combustion chamber. Here the air is heated and then forced out the front of the heater.
The Safety System:
A. Temperature Limit Control:
This heater is equipped with a Temperature Limit Control designed
to turn off the heater should the internal temperature rise to an
unsafe level. If this device activates and turns your heater off it
may require service.
B. Electrical System Protection: This heaters electrical system is protected by a fuse mounted to the
PCB Assembly that protects it and other electrical components from
damage. If your heater fails to operate check this fuse first and
replace as needed.
C. Flame-Out Sensor:
Utilizes a photocell to monitor the flame in burn chamber during
normal operation. It will cause the heater to shut-off should the
burner flame extinguish.
Once the temperature falls below the reset temperature you will be able to start your heater.
Internal Shut-Off Temp.
Reset Temperature
MODELS
Plus/Minus 10 Degrees
Plus/Minus 10 Degrees
DFA-125
230˚F/110˚C
194˚F/90˚C
DFA-45/DFA-70
176˚F/80˚C
122˚F/50˚C
FUSE TYPE:
All Models
125 volt / 8 amps