Assembly; Ventilation; Theory Of Operation - Master B35CED Owner's Manual

ASSEMBLY

4

VENTILATION

THEORY OF OPERATION

ASSEMBLY
(FOR 100,000 AND 150,000 BTU/HR MODELS
ONLY)
These models are furnished with wheels and handles. Wheels, handles,
and the mounting hardware are found in the shipping carton.
Tools Needed
• Medium Phillips Screwdriver
• 3/8" Open or Adjustable Wrench
• Hammer
1. Slide axle through wheel support frame. Install wheels on axle.
IMPORTANT: When installing wheels, point extended hub
of wheels toward wheel support frame (see Figure 3).
2. Place cap nuts on axle ends. Gently tap with hammer to secure.
3. Place heater on wheel support frame. Make sure air inlet end
(rear) of heater is over wheels. Line up holes on fuel tank flange
with holes on wheel support frame.
4. Place front handle and rear handle on top of fuel tank flange.
Insert screws through handles, fuel tank flange, and wheel sup-
port frame. Attach nut finger tight after each screw is inserted.
5. After all screws are inserted, tighten nuts firmly.
Screw
Hot Air
Outlet
Fuel Tank
Flange
Wheel
Support
Frame
Nut
Cap Nut
Wheel
Figure 3 - Wheel and Handle Assembly, 100/150,000 Btu/Hr
Models Only
Front Handle
Extended
Hub
Axle
VENTILATION
WARNING: Follow the minimum fresh, outside air
ventilation requirements. If proper fresh, outside air
ventilation is not provided, carbon monoxide poison-
ing can occur. Provide proper fresh, outside air ven-
tilation before running heater.
Provide a fresh air opening of at least 2800 square cm (three square
feet) for each 100,000 Btu/Hr rating. Provide extra fresh air if more
heaters are being used.
Example: A 150,000 Btu/Hr heater requires one of the following:
• a two-car garage door raised 15 cm (six inches)
• a single-car garage door raised 23 cm (nine inches)
• two, 76 cm (thirty-inch) windows raised 31 cm (twelve inches)
THEORY OF OPERATION
The Fuel System:
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:
and around the combustion chamber. This air is heated and provides
a stream of clean, hot air.
The Ignition System:
spark plug. The spark plug ignites the fuel and air mixture.
The Flame-Out Control System:
shut down if the flame goes out.
Combustion
Chamber
Rear
Handle
Clean
Heated
Air Out
Air
Inlet
Fuel
Nozzle
Tank
Air For Fuel
System
Figure 4 - Cross Section Operational View
The air pump forces air through the air line. The
The motor turns the fan. The fan pushes air into
The electronic ignitor sends voltage to the
This system causes the heater to
Motor
Spark
Burner
Fan
Plug
Head
Air Line
Fuel Filter
To Burner
Air For
Combustion
And Heating
Air Pump
Intake Air
Filter
Cool
Air In
Output
Air Filter
Electronic
Ignitor
Fuel
4110.607