Desa B350D, B600D User Manual
HIGH PRESSURE
PORTABLE
FORCED
AIR HEATERS
OWNER’S MANUAL
600 SIDE
350 SIDE
Heater Sizes: 350,000 and 600,000 Btu/Hr
Models: B350D and B600D
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.
PV 027
PV 026
ARL LOGO
®
G 004
HIGH PRESSURE PORTABLE FORCED AIR
HEATER 350,000 AND 600,000 BTU/HR
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, and carbon monoxide
poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: 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 are more affected by carbon
monoxide than others. These include pregnant women, persons with heart or lung
disease or anemia, those under the influence
of alcohol, and those at high altitudes.
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.
• Fueling
a)Personnel involved with fueling shall
be qualified and thoroughly familiar
with the manufacturer's instructions
and applicable federal, state, and local regulations regarding the safe
fueling of heating units.
b)Only the type of fuel specified on the
heater's data plate shall be used.
c) All flame, including the pilot light,
if any, shall be extinguished and the
heater allowed to cool, prior to fueling.
d)During fueling, all fuel lines and fuel-
line connections shall be inspected for
leaks. Any leaks shall be r epaired prior
to returning the heater to service.
e)At no time shall more than one day's
supply of heater fuel be stored inside a building in the vicinity of the
heater. Bulk fuel storage shall be
outside the structure.
f) All fuel storage shall be located a
minimum of 25 feet from heaters,
torches, welding equipment, and
similar sources of ignition (exception: the fuel reservoir integral with
the heater unit).
g)Whenever possible, fuel storage
shall be confined to areas where
floor penetrations do not permit
fuel to drip onto or be ignited by a
fire at lower elevation.
h)Fuel storage shall be in accordance
with the federal, state, or local authority having jurisdiction.
• Never use heater where gasoline, paint
thinner, or other highly flammable vapors are present.
• Follow all local ordinances and codes
when using heater.
• Heaters used in the vicinity of tarpaulins, canvas, or similar enclosure materials shall be located a safe distance
from such materials. The recommended
minimum safe distance is 10 feet. It is
further recommended that these enclosure materials be of a fire retardant nature. These enclosure materials shall be
securely fastened to prevent them from
igniting or from upsetting the heater
due to wind action.
• Use only in well vented areas. Before
using heater, provide at least a threesquare-foot opening of fresh, outside
air for each 100,000 Btu/Hr of rating.
This heater produces carbon monoxide, which is listed by the State of California as a reproductive toxin under
Proposition 65.
• 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 extension cord.
• Minimum heater clearances from
combustibles:
Outlet: 8 Ft. Sides: 4 Ft.
Top: 4 Ft. Rear: 4 Ft.
• Locate heater on a stable and level
surface while hot or running or a fire
may occur.
• When moving or storing heater, keep
heater 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.
• Warning to New York City Residents
For Use Only At Construction Sites
in accordance with applicable NYC codes
under NYC Board of Standards and
Appeals calender number 62-59-SA.
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099507
OWNER’S MANUAL
PRODUCT
IDENTIFICATION
Hot Air Outlet
Lower Shell
Fuel Cap
Thermostat
Upper Shell
Flame-Out Control
Reset Button
UNPACKING
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.
Motor and
Pump
Assembly
Power Cord
Fuel Tank
Figure 1 - 350,000 Btu/Hr Model
Hot Air Outlet
Lower
Shell
Fuel Cap
Thermostat
Upper Shell
Flame-Out Control
Reset Button
Motor and
Pump
Assembly
Power Cord
Fuel Tank
Figure 2 - 600,000 Btu/Hr Model
099507
3
HIGH PRESSURE PORTABLE FORCED AIR
HEATER 350,000 AND 600,000 BTU/HR
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 Flame-Out 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.
Combustion
Chamber
FUELS
WARNING: 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
IMPORTANT:
storage container. Be sure storage container
is clean. Foreign matter such as rust, dirt, or
water will cause flame-out control to shut
down heater. Foreign matter may also require you to clean fuel system often.
Spark
Plug
Burner
Head
Use a KEROSENE ONLY
Solenoid
Valve
Fan
Fuel Pump/
Fuel Filter
Motor
VENTILATION
WARNING: 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.
Fresh Air Opening
Requirements
Square Feet
Heater Size Opening
350,000 Btu/Hr 10.5
600,000 Btu/Hr 18.0
Note:
If you use more than one heater,
provide extra fresh air. Provide a fresh air
opening of at least three square feet for each
100,000 Btu/Hr rating.
Clean
Heated
Air Out
Fuel Tank
Figure 3 - Cross Section Operational View
Nozzle
Fuel Line To
Solenoid Valve
Air for Combustion
and Heating
Electronic Ignitor
Fuel
4
Cool
Air In
Fuel
Pickup
Line
Fuel
Filter
099507
OPERATION
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 infor mation.
2. Fill fuel tank with kerosene or No. 1
fuel oil.
3. Attach fuel cap.
4. Set thermostat dial to desired temperature.
Note:
Thermostat setting must be
higher than surrounding air temperature.
5. Plug power cord of heater into threeprong, grounded extension cord. Extension cord must be at least six feet long.
WARNING: Use only a threeprong, grounded extension cord.
Use cord with proper wire size to
assure 120 volt operation. See
Extension Cord Wire Size Requirements
Extension Cord Wire Size
Requirements
6 to 100 feet long, use 14 AWG rated
cord
101 to 200 feet long, use 12 AWG rated
cord
201 to 300 feet long, use 10 AWG rated
cord
301 to 400 feet long, use 8 AWG rated
cord
401 to 500 feet long, use 6 AWG rated
cord
6. Plug extension cord into standard 120
volt/60 hertz, three-hole, grounded outlet.
7. The motor will start when extension
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 flameout control reset button. Flame-out control reset button is at rear of heater near
power cord (see Figure 4).
below.
OWNER’S MANUAL
Note:
A cold heater may affect the termostat
setting. This thermostat is a general-heating
control. It is not intended for precise temperature control. Adjust thermostat until
heater cycles at the desired setting.
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. To
facilitate starting, remove the canister bottom from the pump's fuel filter and fill with
fuel. Reassemble filter (see Pump Fuel
Filter, page 12).
Flame-Out Control
Reset Button
Figure 4 - Flame-Out Control Reset Button
TO STOP HEATER
CAUTION: Never unplug
heater while heater is running.
Heater must go through purge
cycle. The purge cycle cools the
combustion chamber. Damage to
heater can occur if combustion
chamber is not cooled. Do not
restart heater until purge cycle is
complete.
1. Turn thermostat dial to lowest tempera-
ture setting. This will cause heater
flame to go out. The motor will continue to run during the purge cycle. This
allows the fan to cool the combustion
chamber. When the purge cycle is
finished, the motor will stop. Do not
unplug heater until purge cycle is finished.
2. Unplug extension cord from outlet.
3. T o temporarily stop heater, set thermo-
stat at a temperature lower than air
around heater. Heater will cycle back
on if air temperature around heater
matches thermostat setting.
TO RESTART HEATER
CAUTION: Do not restart
heater until purge cycle is
finished. The purge cycle cools
the combustion chamber.
1. Wait until purge cycle is finished after
stopping heater.
2. Repeat steps under To Start Heater.
STORING,
TRANSPORTING,
OR SHIPPING
Note:
If shipping transport companies re-
quire fuel tanks to be empty.
1. Drain all fuel from fuel filters, fuel
lines, and pump (see Fuel Filters [Tank
Fuel Filter], page 12).
2. Clean and flush fuel filter and canister
attached to fuel pump (see Fuel Filters
[Pump Fuel Filter], page 12).
3. Remove drain plug and drain fuel tank.
4. Replace drain plug.
5. If any debris is noted in old fuel, add 1
or 2 quarts of clean kerosene to tank,
stir, and drain again. This will prevent
excess debris from clogging filters during future use.
6. Replace fuel cap or drain plug. Properly dispose of old and dirty fuel. Check
with local automotive service stations
that recycle oil.
7. Add two gallons (350,000 Btu/Hr) or
three gallons (600,000 Btu/Hr) of clean
kerosene or No. 1 fuel oil to fuel tank.
8. Replace fuel cap.
9. Operate heater for 5 minutes (see
Operation).
10. Stop heater and let cool completely.
11. Remove drain plug and drain fuel tank.
12. Replace drain plug.
13. Properly dispose of old and dirty fuel.
14. If storing, store heater in a dry location. Make sure storage place is free of
dust and corrosive fumes.
IMPORTANT:
summer months for use during next heating
season. Using old fuel could damage heater.
Do not store kerosene over
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5
HIGH PRESSURE PORTABLE FORCED AIR
HEATER 350,000 AND 600,000 BTU/HR
PREVENTATIVE
MAINTENANCE
SCHEDULE
Item
Fuel tank
Filler neck screen
Fuel filter assembly (Fuel tank)
Fuel filter lines
Fuel filter (Pump)
Spark plug
Fan blades and air deflectors
WARNING: Never service
heater while it is plugged in, operating, or hot. Severe burns and
electrical shock can occur.
How Often
Flush every 150-200 hours of operation or
as needed
Check for particles in fuel when filling fuel
tank. Clean when dirty
Clean twice a heating season or replace as
needed
Check and tighten loose connections occasionally
Clean fuel filter element every 250 hours
Clean and regap every 300 hours of operation or replace as needed
Clean each season or as needed
How To
See Storing, Transporting, or Shipping,
page 5
Lift out of fuel tank and rinse with clean
kerosene
See Fuel Filters, page 12
See Fuel Lines, Page 12
See Fuel Filters, page 12
See Spark Plug, page 10
See Fan Blades and Air Deflectors, page 10
Air passages around burner head
Motor
Check each season for dirt and debris
Not required, permanently lubricated
Remove debris and trash with a clean, soft cloth
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099507
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