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.
2
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
099507
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
099507
OWNER’S MANUAL
TROUBLESHOOTING
Note:
For additional help, visit DESA
International’s Technical Service web
site at www.desatech.com.
OBSERVED PROBLEM
Motor does not start when heater is plugged
in and thermostat setting is higher than
surrounding air temperature
WARNING: Never service heater while it is plugged in, operating, or
hot. Severe burns and electrical shock can occur. Only a qualified service
person should service and repair heater.
POSSIBLE CAUSE REMEDY
1. No power or low voltage at heater due
to:
A) Damaged power cord or extension cord
B) Wrong size extension cord
C) Heater plugged into outlet with voltage lower than 120 volt
2. Loose electrical connections
3. Motor overload protector tripped due to:
A) Dirty fan
B) Debris pulled into fan area by fan
C) Binding pump
D) Low voltage
4. Flame-out control not reset
5. Damaged flame-out control
6. Damaged power relay
7. Damaged thermostat
8. Binding pump
1. A) Check condition of power cord or
extension cord. Repair or replace
damaged
B) Use extension cord with proper wire
size (see To Start Heater, page 5)
C) Make sure heater is plugged into 120
volt/60 hertz outlet
2. Check connections. Tighten if loose
3. A) See Fan Blades and Air Deflectors,
page 10
B) Remove debris from fan and fan
guard area
C) Turn fan by hand. If fan is hard to
turn, see Pump, page 11
D) See steps B and C under item 1 above
Note:
Be sure to reset motor overload
protector by pressing reset button on top
of motor.
4. Press and release flame-out control reset button. See Figure 4, page 5 for button location
5. Replace flame-out control
6. Replace power relay
7. Replace thermostat
8. Turn fan by hand. If fan is hard to turn,
see Pump, page 11
099507
www.desatech.com
7
Continued
HIGH PRESSURE PORTABLE FORCED AIR
HEATER 350,000 AND 600,000 BTU/HR
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Heater will not ignite, but motor runs for a
short period of time
POSSIBLE CAUSE REMEDY
1. A) Fuel tank empty
B) Water in fuel
C) Wrong fuel
2. Dirt in nozzle
3. Very lo w temperature may cause fuel to
thicken and not flow
4. Dirty fuel filters
5. Wrong pump pressure
6. Spark plug wire disconnected from plug
7. Spark plug problems due to:
A) Wrong gap
B) Plug wet with fuel
C) Carbon deposits on plug
D) Damaged plug
8. Solenoid valve not opening
1. A) Add fuel to tank.
B) Check fuel tank for bubbles of water
in bottom. If found, remove fuel (see
Storing, T r anspor ting , or Shipping,
page 5). Clean tank and fuel filters
(see Fuel Filters, page 12). Fill with
clean fuel.
C) Remove wrong fuel (see Storing,
Transporting, or Shipping, page 5).
Clean tank and fuel filters (see Fuel
Filters, page 12). Fill with correct fuel
2. Replace nozzle (see Nozzle, page 10)
3. Move heater to warmer place until fuel
flows freely
4. Clean fuel filters (see Fuel Filters, page 12)
5. Adjust pump pressure (see Pump Pres-
sure Adjustment, page 11)
6. Connect spark plug wire to spark plug
7. A) Adjust electrode gap to .075" (see
Spark Plug, page 10)
B) Clean fuel from spark plug with
clean, soft cloth
C) Replace plug if heavily coated with
carbon (see Spark Plug, page 10)
D) Inspect plug for worn or eroded elec
trodes. If found, replace plug (see
Spark Plug, page 10)
8. Check electrical connections and voltage to solenoid. If good, replace solenoid valve
9. Damaged electronic ignitor
www.desatech.com
8
WARNING: High Voltage!
9. Replace electronic ignitor
099507
TROUBLESHOOTING
Continued
OWNER’S MANUAL
OBSERVED PROBLEM
Heater ignites, but flame-out control shuts
off heater after a short period of time
Heater burns, but puffs of smoke can be seen
Heater does not burn steady
Heater burns with odor
Heater smokes continuously
POSSIBLE CAUSE REMEDY
1. Wrong pump pressure
2. Dirty fuel filters
3. Dirt in nozzle
4. Dirty photocell lens
5. Open or damaged photocell
6. Bad flame-out control
7. Damaged fan switch
1. Wrong pump pressure
2. A) Heater almost out of fuel
B) Water condensation in fuel tank
C) Wrong fuel
3. Dirty fuel filters
4. Air leak in suction system
5. Dirty nozzle
6. Low voltage causing motor to operate
below rated speed
7. Loose fuel line
1. Adjust pump pressure (see Pump Pres-
sure Adjustment, page 11)
2. Clean fuel filters (see Fuel Filters,
page 12)
3. Replace nozzle (see Nozzle, page 10)
4. Clean photocell lens with clean cotton
swab
5. Replace photocell
6. Replace flame-out control
7. Replace fan switch
1. Adjust pump pressure ( see Pump Pres-
sure Adjustment, page 11)
2. A) Add fuel to tank
B) Check fuel tank for bubbles of water
in bottom. If found, remove fuel (see
Storing, Tr ansporting , or Shipping,
page 5). Clean tank and fuel filters
(see Fuel Filters, page 12). Fill with
clean fuel
C) Remove wrong fuel (see Storing,
Transporting, or Shipping, page 5).
Clean tank and fuel filters (see Fuel
Filters, page 12. Fill with correct fuel
3. Clean fuel filters (see Fuel Filters,
page 12)
4. Tighten all fuel line connections (see
Fuel Lines, page 12)
5. Replace nozzle (see Nozzle, page 10)
6. Check v oltage at heater. Voltage at heater
should be not less than 90% of rated voltage (108V minimum for 120V heaters)
7. Check and tighten all fuel line connections (see Fuel Lines, page 12)
099507
www.desatech.com
9
HIGH PRESSURE PORTABLE FORCED AIR
HEATER 350,000 AND 600,000 BTU/HR
SERVICE
PROCEDURES
WARNING: Never service
heater while it is plugged in, operating, or hot. Severe burns and
electrical shock can occur. Only
a qualified service person should
service and repair heater.
UPPER SHELL REMOVAL
1. Remove screws along each side and top
of heater using 5/16" nut-driver . These
screws attach upper and lower shells
together (see Figure 5).
2. Lift upper shell off.
Upper Shell
Air Deflector
Fan Blade
Figure 6 - Fan Blades and Air Deflectors
SPARK PLUG
1. Remove upper shell (see column 1).
2. Remove spark plug wire from spark
plug (see Figure 7).
3. Remove spark plug from burner head
using 13/16" open-end wrench (see
Figure 7).
4. Replace spark plug if damaged or
heavily coated with carbon.
5. Clean and regap spark plug electrodes
to .075 inch (see Figure 8).
6. Install spark plug in burner head.
7. Attach spark plug wire to spark plug.
8. Replace upper shell.
NOZZLE
1. Remove upper shell (see column 1).
2. Remove fuel line from solenoid valve
using 7/16" wrench.
3. Remove spark plug wire from spark plug.
4. Remove spark plug from burner head
using 13/16" open-end wrench.
5. Remove five screws using 5/16" nutdriver and remove burner head from
combustion chamber.
6. Place burner head into vise and
lightly tighten.
7. Carefully remove nozzle from burner
head using 5/8" socket wrench (see Figure 9, page 11).
8. Inspect nozzle for damage. If damaged
or clogged, replace nozzle.
9. Make sure plug is in place on burner head.
10. Replace nozzle into burner head and
tighten firmly (175-200 inch-pounds).
11. Attach burner head to combustion
chamber.
12. Install spark plug in burner head.
13. Attach spark plug wire to spark plug.
14. Attach fuel line to solenoid valve.
Tighten firmly.
15. Replace upper shell.
Figure 5 - Upper Shell Removal, 600,000
Btu/Hr Model
FAN BLADES AND AIR
DEflECTORS
1. Remove upper shell (see column 1).
2. Clean fan blades and air deflectors with
clean, soft cloth moistened with kerosene or solvent (see Figure 6).
3. Dry fan blades and air deflectors thoroughly.
4. Replace upper shell.
Burner Head
Spark Plug
Figure 7 - Spark Plug Removal
Figure 8 - Spark Plug Gap
10
Spark
Plug Wire
.075
inch
099507
OWNER’S MANUAL
SERVICE
PROCEDURES
Continued
Nozzle
Plug
Burner
Head
Figure 9 - Replacing Nozzle
Pump Pressure Adjustment
1. Remove pressure gage plug from fuel
pump port marked “GAGE.”
2. Install accessory pressure gage (part
number M4574) to fuel pump port
marked “GAGE” (see Figure 10).
Pressure
Gage
Spark
Plug
Solenoid
Valve
Fuel
Line
Spark
Plug
Wire
3. Start heater (see Operation, page 5).
Allow motor to reach full speed.
4. Adjust pressure. Use small flat blade
screwdriver to tur n slotted screw at fuel
pump port marked “PRESS ADJ.” Turn
screw clockwise to increase pressure.
Turn screw counterclockwise to decrease pressure. See specifications at
right for correct pressure for each model.
5. Stop heater (see page 5).
6. Remove pressure gage. Replace pressure gage plug in fuel pump port
marked “GAGE.”
PUMP
(Procedure if Pump is Binding)
1. Remove upper shell (see page 10).
2. Loosen hex screw on flange clamp at
rear of motor with 5/16" nut-driver (see
Figure 11).
3. Turn fan with hand (see Figure 12).
4. If fan turns freely, tighten screw on
flange clamp.
5. If fan does not turn freely, replace pump.
6. Replace upper shell.
Hex Screw
On Flange
Clamp
Figure 11 - Location of Screw on Flange
Clamp
psi
Fuel Pump Port
Marked “GAGE”
Model Pump Pressure
350,000 Btu/Hr 100 PSI
600,000 Btu/Hr 110 PSI
Figure 10 - Adjusting Pump Pressure
099507
Fuel Pump Port
Marked “PRESS
ADJ”
Figure 12 - Turning Fan with Hand
Continued
11
HIGH PRESSURE PORTABLE FORCED AIR
HEATER 350,000 AND 600,000 BTU/HR
SERVICE
PROCEDURES
Continued
FUEL LINES
(Procedure for Tightening
Fuel Lines)
1. Remove upper shell (see page 10).
2. Use an adjustable wrench as a backup
on 90° fittings.
3. Use 7/16" wrench and tighten fuel
lines at solenoid valve (see Figure
13), pump, and pump fuel filter assembly (see Figure 14).
Burner Head
FUEL FILTERS
A. Tank Fuel Filter
1. Disconnect fuel lines from pump and
pump fuel filter assembly with 7/16"
wrench (see Figure 15).
2. Carefully pry fuel filter loose from fuel
tank with flat end of screwdriver.
3. Inspect fuel filter for water or dirt.
4. Rinse fuel filter and fuel lines with
clean kerosene.
5. Replace fuel filter into fuel tank.
6. Connect fuel lines to pump and pump
fuel filter assembly.
Pump Fuel
Filter
Assembly
B. Pump Fuel Filter
1. Unscrew canister bottom from canister top with adjustable pliers.
2. Remove fuel filter and gasket from canister bottom (see Figure 16).
3. Inspect canister bottom and fuel filter
for water droplets or dirt.
4. Rinse canister bottom in clean kerosene.
5. Wipe inside of canister bottom dry with
clean cloth.
6. Rinse fuel filter in clean kerosene.
7. Put clean fuel filter and gasket back in
canister bottom.
8. Screw canister bottom into canister top.
9. Tighten securely.
Canister Top
Fuel
Line
Solenoid
Valve
Figure 13 - Fuel Line at Solenoid Valve
Pump
Fuel Filter
Assembly
Pump
Fuel
Lines
Figure 14 - Fuel Lines at Pump and Pump
Fuel Filter Assembly
Fuel
Lines
Fuel Filter
Figure 15 - Removing Tank Fuel Filter
Gasket
Fuel Filter
Canister
Bottom
Figure 16 - Fuel Pump Filter and Canister
12
099507
OWNER’S MANUAL
SPECIFICATIONS
350,000 Btu/Hr 600,000 Btu/Hr
Output Rating (Btu/Hr) 350,000 600,000
Fuel Use Only Kerosene or No. 1 Fuel Oil
Fuel Tank Capacity (U.S. Gallons) 30 36
Fuel Consumption (Gallons Per Hr) 2.5 4
Electric Requirements 120V/60 Hz 120V/60 Hz
Amperage (Normal Run) 7.1 11
Motor RPM 1725 1725
Fuel Pump Pressure (PSI) 100 110
Spark Plug Gap .075" .075"
Weight (approx. lbs.) Dry 180 285
With Full Fuel Tank 390 550
WIRING DIAGRAM
75
BA
RELAY
WHITE
BLACK
RED
BLACK
PLUG
120V
60Hz
132
BLACK
GREEN
WHITE
FAN
SWITCH
Figure 17 - Wiring Diagram
BLACK BLACK
RED ORANGE
WHITE
WHITE
ELECTRONIC
THERMOSTAT B
WHITE
WHITE
MOTOR
WHITE
SPARK
PLUG
WHITE
TERMINAL
BOARD
IGNITOR
ORANGE
TERMINAL
BOARD
SOLENOID
VALVE
PHOTOCELL
WHITE
FLAME-OUT
YELLOW
YELLOW
YELLOW
BLUE
CONTROL
R
RED
RED
RESET
BUTTON
BLUE
MAINTENANCE
KITS
Kit Part Number
Flame-Out Control HA3003
Spark Plug HA3012
ACCESSORY
Purchase this heater accessory from your
nearest dealer or service center. If they cannot supply this accessory, either contact
your nearest Parts Central or DESA
International's Parts Department at 1-800972-7879 for information. Parts Centrals
are listed in the Authorized Service Center
booklet supplied with heater. You can also
write to the address listed on the back page
of this manual.
FUEL PRESSURE GAGE
M4574
Special tool to check fuel pump pressure
TECHNICAL
SERVICE
You may have further questions about installation, operation, or troubleshooting.
If so, contact DESA International’s Technical Service Department at 1-800-323-5190.
You can also visit DESA International’s
Technical Services web site at
www.desatech.com.
099507
13
HIGH PRESSURE PORTABLE FORCED AIR
HEATER 350,000 AND 600,000 BTU/HR
ILLUSTRATED
PARTS
BREAKDOWN
350,000 BTU/HR
1
2
3
2
4
5
21
2
6
7
8
9
20
25
31
21
32
34
19
26
27
33
28
22
13
29
10
4
13
11
23
30
20
34
2
39
12
16
24
14
15
17
18
41
36
35
37
37
38
14
2
4
40
099507
OWNER’S MANUAL
PARTS LIST
350,000 BTU/HR
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed
under Repair Service on the back page of this manual.
REF.
NO. PART NO. DESCRIPTION QTY.
1 099329-02 Upper shell model B350D (Yellow) 1
2 M11084-27 Screw, #10-16 x 1/2" 15
3 M50542-01 Combustion chamber & shield 1
4 M30865-02 Bushing 7
5 M50086 Air deflector 5
6 † Burner head assembly 1
7 M16656-18 Photocell assembly 1
8 M50121 Fan 1
9 M50097-01AA Fan guard 1
10 M51336-02 Fan switch 1
11 M51160-01 Fan switch cover 1
12 M50278 Sleeve 1
13 M11084-26 Screw, #10-16 x 3/8" 13
14 † Motor & pump assembly 1
15 099896-01 Power cord 1
16 M50295 Fuel line 1
17 M50050 Ignition boot 1
18 102482-04 Electronic Ignitor 1
19 099329-01 Lower shell model B350D (Yellow) 1
20 M11271-8 Clip nut 16
21 M11084-3 Screw, #12-14 x 1/2" 14
22 M50104-02 Bushing 2
23 099509-01 Wire harness 1
24 M50115-01 Fuel line assembly 1
25 M50062-03 Front handle 1
26 097702-01 Fuel cap 1
27 HA2210 Filler neck screen 1
28 HC4-18C Screw, 1/4-20 x 2 1/4"6
29 M51043-01 Screw, 1/4-20 x 1 1/2"2
30 M50062 Rear handle 1
31 098513-05 Fuel tank 1
32 M50063 Wheel support frame 1
33 M18774 Axle 1
34 NTC-4C Hex lock nut, 1/4-20 8
35 M50389 Wheel 2
36 C5-10C Cotter pin, 5/32 x 1 1/4"2
37 WP-10C Flatwasher, 5/8" 4
38 M50296 Wheel spacer 2
39 M27417 Drain plug 1
40 099895-01 Thermostat 1
41 M11084-29 Screw, #10-16 x 3/4" 2
099507
†Not available as complete assembly. See page 18.
15
HIGH PRESSURE PORTABLE FORCED AIR
1
2
2
3
4
5
13
6
7
45
46
8
9
10
11
13
14
21
18
17
15
16
23
22
24
25
33
2
4
28
30
26
27
34
25
16
2
35
36
41
42
15
43
43
44
39
38
37
15
29
12
40
2
19
20
2
4
31
32
47
HEATER 350,000 AND 600,000 BTU/HR
ILLUSTRATED
PARTS
BREAKDOWN
600,000 BTU/HR
16
099507
OWNER’S MANUAL
PARTS LIST
600,000 BTU/HR
This list contains replaceable parts used in
your heater. When ordering parts, follow
the instructions listed under Repair Service
on the back page of this manual.
REF.
NO. PART NO. DESCRIPTION QTY.
1 099329-04 Upper shell model B600D (Yellow) 1
2 M11084-27 Screw, #10-16 x 1/2" 28
3 M50543-01 Combustion chamber & shield 1
4 M30865-02 Bushing 5
5 M50157 Air deflector 5
6 † Burner head assembly 1
7 104679-01 Photocell assembly 1
8 M50194 Fan 1
9 M50186-01AA Fan guard 1
10 M51336-02 Fan switch 1
11 M51160-01 Fan switch cover 1
12 M50278 Sleeve 1
13 M11084-26 Screw, #10-16 x 3/8" 15
14 † Motor & pump assembly 1
15 NTC-4C Hex nut, 1/4-20 18
16 M11271-8 Clip nut 18
17 M11084-3 Screw, #12-14 x 1/2" 4
18 M50104-02 Bushing 2
19 099329-03 Lower shell model B600D (Yellow) 1
20 M50119-01 Fuel line 1
21 099896-01 Power cord 1
22 M50388AB Support bracket model B600D (Yellow) 2
23 HC4-3C Screw, 1/4-20 x 3/8" 4
24 M50224 Front handle 1
25 M51043-01 Screw, 1/4-20 x 1 1/2"6
26 097702-01 Fuel cap 1
27 HA2210 Filler neck screen 1
28 099509-02 Wire harness 1
29 M28872-01 Rear handle 1
30 M50115-02 Fuel line assembly 1
31 M50050 Ignition boot 1
32 102482-04 Electronic Ignitor 1
33 098513-07 Fuel tank 1
34 HC4-22C Screw, 1/4-20 x 2 3/4"8
35 M28140-02 Wheel support frame 1
36 M18774 Axle 1
37 M27417 Drain plug 1
38 RC1-3C Screw, #6-32 x 3/8" 2
39 099895-01 Thermostat 1
40 M25121B Thermostat bracket (Black) 1
41 M50389 Wheel 2
42 C5-10C Cotter pin, 5/32 x 1 1/4"2
43 WP-10C Flatwasher, 5/8" 4
44 M50296 Wheel spacer 2
45 104413-01 Photocell Bracket 1
46 M10908-2 Screw, #6-32 x 3/8" 2
47 M11084-29 Screw, #10-16 x 3/4" 2
** Internal lockwasher No. 6 2
NPC-1C ∆ Nut, 6-32 2
099507
† Not available as complete assembly. See page 18.
∆ Not shown.
** Standard hardware item
17
HIGH PRESSURE PORTABLE FORCED AIR
HEATER 350,000 AND 600,000 BTU/HR
Burner Head Assembly 350,000 and 600,000 Btu/Hr
REF
NO. PART NO. DESCRIPTION QTY.
1 M10908-2 Screw, #6-32 x 3/8"
(350,000 Btu/Hr Only) 2
2 099229-01 Photocell bracket
(350,000 Btu/Hr Only) 1
3 HA3012 Spark plug 1
4 M50112 Nozzle (350,000 Btu/Hr) 1
M30765 Nozzle (600,000 Btu/Hr) 1
5 M51170-01 Plug 1
6 M50924-02 Burner head body 1
7 69246 Straight nipple 1
8 M50077 Solenoid valve 1
9 M50297 Compression elbow 1
Motor and Pump Assembly 350,000 and 600,000 Btu/Hr
REF.
NO. PART NO. DESCRIPTION QTY.
1 097495-02AA Wiring cover 1
2 HF5-5C Screw, 5/16-24 x 5/16" 4
3 WLE-5 External lockwasher, 5/16" 4
4 M11084-26 Screw, #10-16 x 3/8" 3
5 099562-01 Motor (350,000 Btu/Hr) 1
099562-02 Motor (600,000 Btu/Hr) 1
6 M50116 Flange clamp
(holds pump to motor) 1
7 099520-01AA Motor support
(350,000 Btu/Hr) 1
101552-01 Motor support
(600,000 Btu/Hr) 1
8 57413 Street elbow 2
9 M17499-2 Pipe nipple 1
10 098102-01 Fuel filter assembly 1
098103-01 Filter element
(inside fuel filter
assembly, includes
rubber gaskets) 1
11 M50114-02 90˚ Male elbow 1
12 M50297 Compression elbow 1
13 M50113-02 Straight fitting 1
14 098560-01 Fuel pump 1
15 ** Lockwasher, 5/16" 4
16 NPF-5C Hex nut, 5/16-24" 4
17 HA3003 Flame-out control 1
18 097491-01 Power relay 1
19 101547-01 Snap bushing 3
20 M10908-2 Screw, #6-32 x 3/8" 2
21 101504-01 Strain relief bushing 1
22 M10908-14 Screw, #8-32 x 3/8" 1
23 099125-05 Terminal board 1
24 099125-04 Terminal board 1
25 099157-01 Rivet 2
4
5
6
7
Figure 18 - Burner Head Assembly
1
4
2
3
5
6
12
20
19
(3)
18
17
24
23
25
(2)
22
21
7
15
16
Figure 19 - Motor And Pump Assembly
3
1
2
8
9
11
10
9
8
14
13
8
** Standard hardware item
18
099507
OWNER’S MANUAL
NOTES
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
099507
19
WARRANTY AND REPAIR SERVICE
LIMITED WARRANTY
DESA International warrants this product and any parts
thereof, to be free from defects in materials and workmanship for one (1) year from the date of first purchase when
operated and maintained in accordance with instructions.
This warranty is extended only to the original retail purchaser, when proof of purchase is provided.
This warranty covers only the cost of parts and labor required to restore the product to proper operating condition.
Transportation and incidental costs associated with warranty repairs are not reimbursable under this warranty.
Warranty service is available only through authorized dealers and service centers.
This warranty does not cover defects resulting from misuse,
abuse, negligence, accidents, lack of proper maintenance,
normal wear, alteration, modification, tampering, contaminated fuels, repair using improper parts, or repair by anyone
other than an authorized dealer or service center. Routine
maintenance is the responsibility of the owner.
THIS EXPRESS WARRANTY IS GIVEN IN LIEU OF
ANY OTHER WARRANTY EITHER EXPRESSED OR
IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.
DESA International assumes no responsibility for indirect,
incidental or consequential damages. Some states do not
allow the exclusion or limitation of incidental or consequential damages, or limitations or exclusions may not apply to
you. This Limited Warranty gives you specific legal rights
and you may also have other rights which vary from state to
state.
KEEP THIS WARRANTY
PARTS AND SERVICE UNDER
WARRANTY
Should your heater require service, return it to your nearest
authorized service center. Proof of purchase must be presented
with the heater. The heater will be inspected. A defect may be
caused by faulty materials or workmanship. If so, DESA International will repair or replace the heater without charge. If they
cannot supply original replacement part(s), either contact your
nearest Parts Central or call DESA International’s Technical
Service Department at 1-800-323-5190.
When calling DESA International, have ready
• your name
• your address
• model number of your heater
• how heater was malfunctioning
• proof of purchase
Usually, we will ask you to return the defective part to the factory.
PARTS AND REPAIR SERVICE
Return your heater to your nearest authorized service center.
Repairs not covered by the warranty will be billed at standard
prices. If they cannot supply original replacement part(s), either
contact your nearest Parts Central or call DESA International’s
Parts Department at 1-800-972-7879 for information.
When calling DESA International, have ready
• model number of your heater
• the replacement part number
A service manual may be purchased from the address listed
below. Send a check for $5.00 payable to DESA International.
When writing for information regarding your heater, be sure to
include the model number and serial number as shown on the
model plate.
Each service center is independently owned and operated.
We reserve the right to amend these specifications at any time
without notice.
Model No. _______________________________
Serial No. _______________________________
Date of Purchase _________________________
(To be filled in by purchaser)
Corporate Headquarters
2701 Industrial Drive
P.O. Box 90004
Bowling Green, Kentucky 42102-9004
www.desatech.com
For information, write: DESA International, P.O. Box 90004
Bowling Green, Kentucky 42102-9004 ATTN: Customer Service Department
When writing, always include Model number and Serial number.
099507 01
NOT A UPC
099507-01
Rev. L
06/99
Loading...