Master Lock B350EAI User Manual
R
HIGH PRESSURE
PORTABLE
FORCED
AIR HEATER
OWNER’S MANUAL
350 SIDE
Model B350EAI
IMPORTANT
Read and understand this manual before assembling, starting, or servicing
heater. Improper use of heater can cause serious injury. Keep this manual
for future reference.
PFA/PV 008
CONTENTS
SECTION PAGE
Safety Information.................................................................................... 3
Product Identification ............................................................................... 4
Unpacking.................................................................................................4
Assembly ..................................................................................................4
Theory of Operation .................................................................................6
Fuels ......................................................................................................... 7
Ventilation ................................................................................................ 7
Operation .................................................................................................. 8
Storage ...................................................................................................... 9
Preventative Maintenance Schedule....................................................... 10
Troubleshooting......................................................................................11
Service Procedures ................................................................................. 14
Upper Shell Removal..................................................................... 14
Fan Blades...................................................................................... 14
Spark Plug...................................................................................... 15
Nozzle ............................................................................................ 15
Pump Pressure Adjustment............................................................ 16
Pump .............................................................................................. 16
Fuel Lines ...................................................................................... 16
Fuel Filters ..................................................................................... 17
Specifications.......................................................................................... 18
Wiring Diagram...................................................................................... 18
Accessory ............................................................................................... 18
Illustrated Parts Breakdowns and Parts Lists ......................................... 19
Warranty and Repair Service................................................... Back Cover
2
099565
SAFETY
INFORMATION
WARNINGS
WARNING ICON G 001
IMPORTANT: Read this Owner’s Manual carefully and completely
before trying to assemble, operate, or service this heater. Improper
use of this heater can cause serious injury or death from burns,
fire, explosion, electrical shock, electrocution, and carbon
monoxide poisoning.
DANGER
WARNING ICON G 001
Carbon monoxide poisoning may lead to death!
Early signs of carbon monoxide poisoning resemble the flu, with headaches,
dizziness, and/or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people (such
as pregnant women, persons with heart or lung disease, persons with anemia,
those under the influence of alcohol, and those at high altitudes) are more
affected by carbon monoxide than others.
Make certain you read and understand all Warnings. Keep this manual for
reference. It is your guide to safe and proper operation of this heater.
• Use only kerosene or No. 1 fuel oil to avoid risk of fire or explosion. Never
use gasoline, naphtha, paint thinners, alcohol, or other highly flammable
fuels.
• Never use heater where gasoline, paint thinner, or other highly flammable
vapors are present.
• Follow all local ordinances and codes when using heater.
• Use only in well vented areas. Provide at least three square feet (2800 square
cm) of fresh, outside air for each 100,000 BTU/Hr of rating.
• Use only in places free of flammable vapors or high dust content.
• Use only with the electrical voltage and frequency specified on model plate.
• Use only a three-prong, grounded (earthed) extension cord.
• Minimum heater clearances from combustibles:
Outlet: 8 Ft. (250 cm) Top, Rear, and Sides: 4 Ft. (125 cm)
• Locate heater on a stable and level surface while hot or running or a fire may
occur.
• When heater is moved or stored, it must be in a level position or fuel spillage
may occur.
• Keep children and animals away from heater.
• Unplug heater when not in use.
• This heater has a built-in thermostat. Plugged-in heater may start at anytime.
• Never use heater in living or sleeping areas.
• Never block air inlet (rear) or air outlet (front) of heater.
• Never move, handle, refuel, or service a hot, operating, or plugged in heater.
• Never attach duct work to front or rear of heater.
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3
PRODUCT
IDENTIFICATION
Hot Air Outlet
Upper Shell
UNPACKING
ASSEMBLY
Lower Shell
Fuel Cap
Thermostat
Safety Control
Reset Button
Figure 1 - B350EAI BTU/Hr Model
Motor and
Pump
Assembly
Power Cord
Fuel Tank
1. Remove all protective packing applied to heater for shipment.
2. Remove heater from shipping container.
3. Check heater for any shipping damage. If heater is damaged, promptly inform
dealer where you bought heater.
This model is furnished with wheels and front and rear handles. Wheels, handles,
and mounting hardware are found in the shipping carton.
TOOLS NEEDED
• Pliers
• Two - 7/16" Open or Adjustable Wrenches
1. Slide axle through wheel support frame. Install wheel spacer and then one flat
washer on each end of axle.
2. Install wheels on axle.
IMPORTANT:
When installing wheels, point exetended hub of wheels toward
wheel support frame (see Figure 2, page 5).
3. Slide one flat washer on each axle end in front of wheel.
4. Install cotter pins through holes at each end of axle. Bend cotter pins with pliers
to secure.
5. 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.
6. Place front and rear handles on top of fuel tank flange. Insert screws through
handles, fuel tank flange, and wheel support frame. Attach nut finger tight after
inserting each screw.
7. After inserting all screws, tighten nuts firmly.
4
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ASSEMBLY
Continued
Hot Air
Outlet
Fuel Tank
Flange
Wheel
Support
Frame
Front Handle
Screw
Rear
Handle
Air Inlet
Wheel
Cotter
Pin
Nut
Wheel Spacer
Flat Washer
Flat Washer
Extended
Hub
Axle
Figure 2 - Wheel and Handle Assembly
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5
THEORY OF
OPERATION
The Fuel System: The motor turns the fuel pump. The fuel pump pulls fuel from
the fuel tank. The fuel pump pushes fuel through a filter and a solenoid valve and out
the burner head nozzle. 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 Safety Control System: This system causes the heater to shut down if the
flame goes out. It also allows the fan to continue running after normal shutdown of
heater. This cools the combustion chamber.
Clean
Heated
Air Out
Combustion
Chamber
Fuel Tank
Solenoid
Valve
Electronic
Ignitor
Fan
Fuel
Nozzle
Spark
Plug
Air for Combustion
and Heating
Burner
Head
Fuel Line To
Solenoid Valve
Figure 3 - Cross Section Operational View
Motor
Fuel Pump/
Fuel Filter
Cool
Air In
Fuel
Pickup
Line
Fuel
Filter
6
099565
FUELS
WARNING
WARNING ICON G 001
Use only kerosene or No. 1 fuel oil to avoid risk of fire or
explosion. Never use gasoline, naphtha, paint thinners, alcohol,
or other highly flammable fuels.
Do not use heavy fuels such as No. 2 fuel oil or No. 2 diesel. Using heavy fuels
will result in:
• clogged fuel filter and nozzle
• carbon build-up on spark plug
• the need of non-toxic anti-icer in fuel during very cold weather
VENTILATION
IMPORTANT:
container is clean. Foreign matter such as rust, dirt, or water will cause safety
control to shut down heater. Foreign matter may also require fuel system to be
cleaned frequently.
Follow the minimum fresh, outside air ventilation requirements.
If proper fresh, outside air ventilation is not provided, carbon
monoxide poisoning can occur. Provide proper fresh, outside air
ventilation before running heater.
Use a KEROSENE ONLY storage container. Be sure storage
WARNING
WARNING ICON G 001
Fresh Air Opening Requirements
Square Square
Heater Size Feet Opening Centimeter Opening
340,000 BTU/Hr 10.5 9755
Note:
If you use more than one heater, provide extra fresh air. Provide a fresh air
opening of at least three square feet (2800 square cm) for each 100,000 BTU/Hr
rating.
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7
OPERATION
WARNING ICON G 001
WARNING
Review and understand the warnings in the Safety Information
Section. They are needed to safely operate 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.
Note:
4. Set thermostat dial to desired temperature.
higher than surrounding air temperature.
5. Plug power cord of heater into a standard 220/240 volt, 50 hertz, grounded
(earthed) outlet. Use an extension cord if needed. Use only a three-wire,
grounded (earthed) extension cord.
Extension Cord Wire Size Requirements
Up to 100 feet (30.5 meters) long, use 16 AWG (1.0 mm2) conductor
101 to 200 feet (30.6 to 61 meters) long, use 14 AWG (1.5 mm2) conductor
201 to 300 feet (61.1 to 91.5 meters) long, use 12 AWG (2 mm2) conductor
6. The motor will start when power cord is plugged into outlet. The heater should
ignite at once. If heater does not ignite, restart heater. To restart heater, wait 60
seconds, then push in safety control reset button. Safety control reset button is
at rear of heater near power cord (see Figure 4).
Thermostat setting must be
Note:
If starting heater for first time, you may need to restart heater several times
before heater ignites. You may also have to do this after taking heater out of
storage.
Safety Control
Reset Button
Figure 4 - Safety Control Reset Button
8
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