Desa SB600D, SB350D 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: SB350D and SB600D

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 repaired
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 NYCFD certificate of ap­proval #4803, #4899, #4908, #4909, or
#4934.

2

106029

OWNER’S MANUAL

PRODUCT
IDENTIFICATION

Hot Air Outlet

Lower Shell

Fuel Cap

Thermostat

Figure 1 - 350,000 Btu/Hr Model

Hot Air Outlet

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

Lower
Shell

Fuel Cap

Thermostat

Figure 2 - 600,000 Btu/Hr Model

106029

Upper Shell

Flame-Out Control
Reset Button

3

Motor and
Pump
Assembly

Power Cord

Fuel Tank

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

106029

OPERATION

WARNING: Review and un-

derstand the warnings in the

Safety Information

2. 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.

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).

Note:

A cold heater may affect the thermo­stat setting. This thermostat is a general­heating control. It is not intended for precise
temperature control. Adjust thermostat un­til heater cycles at the desired setting.

below.

section, page

OWNER’S MANUAL

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. To 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 Op-
eration).

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

106029

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

6

106029