Page 1
TRADESMAN K350
and K600
KEROSENE HIGH PRESSURE
PORTABLE FORCED AIR HEATERS
OWNER’S MANUAL
600 SIDE
PV 027
350 SIDE
PV 026
With Thermostat
Heater Sizes: 350,000 and 600,000 Btu/Hr
Models: CP350AK and CP600AK
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.
TABLE OF CONTENTS
SAFETY INFORMATION ............................................................ 2
PRODUCT IDENTIFICATION ..................................................... 3
UNPACKING............................................................................... 3
THEORY OF OPERATION ......................................................... 3
FUELS......................................................................................... 4
VENTILATION............................................................................. 4
OPERATION ............................................................................... 4
STORING, TRANSPORTING, OR SHIPPING............................ 5
OPERATION WITH PORTABLE GENERATOR.......................... 5
PREVENTATIVE MAINTENANCE SCHEDULE ......................... 6
TROUBLESHOOTING ................................................................ 6
SERVICE PROCEDURES .......................................................... 8
ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST ....... 12
SPECIFICATIONS .................................................................... 18
WIRING DIAGRAM ................................................................... 18
MAINTENANCE KITS ............................................................... 18
ACCESSORY............................................................................ 18
TECHNICAL SERVICE ............................................................. 18
REPLACEMENT PARTS .......................................................... 18
OWNER’S REGISTRATION FORM.......................................... 19
WARRANTY INFORMATION ...................................... Back Cover
Fill In For Your Records
Model No. ___________________
(Located on side panel)
Serial No. ___________________
(Located on fuel tank)
Date of Purchase: ______________
®
Page 2
SAFETY INFORMATION
2
SAFETY INFORMATION
WARNINGS
WARNING: This product contains and/or generates
chemicals known to the State of California to cause
cancer or birth defects, or other reproductive harm.
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 thor-
oughly 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 extin-
guished 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 three-square-foot opening 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.
• Heater must be grounded. Use only a properly grounded threewire extension cord. Plug into grounded outlet only.
• 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.
• Never start heater when combustion chamber is hot or if fuel
has accumulated in combustion chamber.
• 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.
• Never use gasoline, crankcase drainings, naphtha, paint
thinners, alcohol, or other highly flammable fuels.
• Never leave a heater plugged in without adult supervision if
children or animals are likely to be present.
• Warning to New York City Residents For Use Only At Con-
struction Sites in accordance with applicable NYC codes un-
der NYCFD certificate of approval #4803, #4899, #4908,
#4909, or #4934.
105850-01D
Page 3
PRODUCT IDENTIFICATION
UNPACKING
THEORY OF OPERATION
3
3
PRODUCT IDENTIFICATION
Hot Air
Outlet
Upper Shell
Lower
Shell
Fuel Cap
Thermostat
Flame-Out
Control Reset
Button
Figure 1 - 350,000 Btu/Hr Model
Hot Air Outlet
Fuel Tank
Power
Cord
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.
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
Spark
Plug
Solenoid Valve
Burner
Head
Fan
Fuel Pump/
Fuel Filter
Motor
Lower
Shell
Fuel Cap
Thermostat
Figure 2 - 600,000 Btu/Hr Model
Upper Shell
Flame-Out
Control
Reset Button
Fuel
Tank
Clean
Heated
Air Out
Power
Cord
Nozzle
Fuel Line To
Fuel Tank
Figure 3 - Cross Section Operational View
Solenoid Valve
Air for
Combustion
and Heating
Electronic
Ignitor
Fuel
Cool
Air In
Fuel
Pickup
Line
Fuel
Filter
105850-01D
Page 4
FUELS
VENTILATION
4
OPERATION
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:
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.
Use a KEROSENE ONLY storage container. Be
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
Heater Size Square Feet 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.
OPERATION
6. Plug power cord of heater into three-prong, grounded extension cord. Extension cord must be at least six feet long.
WARNING: Use only a three-prong, grounded
extension cord. Use cord with proper wire size to
assure 120 volt operation. See
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
7. Plug extension cord into standard 120 volt/60 hertz, three-hole,
grounded outlet.
8. 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
flame-out 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 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 prime the
pump. If equipped, slightly open bleeder valve of pump to allow air
to escape. Quickly close valve once fuel is seen. Wipe up any excess
fuel. If equipped with canister fuel filter, remove the canister bottom
and fill with fuel. Reassemble filter. Wipe up any excess fuel. You
may also have to do this after taking heater out of storage.
below.
Extension Cord Wire
WARNING: Review and understand the warnings
in the
needed to safely operate this heater.
Safety Information
section, page 2. They are
TO START HEATER
1. Follow all ventilation and safety information.
2. Locate heater to provide maximum circulation of the heated
air. Follow all location requirements noted in Safety Informa-
tion, page 2.
3. Fill fuel tank with kerosene or No. 1 fuel oil.
4. Attach fuel cap.
5. Set thermostat dial to desired temperature.
setting must be higher than surrounding air temperature.
Note:
Thermostat
Flame-Out Control
Reset Button
Figure 4 - Flame-Out Control Reset Button
105850-01D
Page 5
OPERATION
Continued
OPERATION
STORING, TRANSPORTING, OR SHIPPING
OPERATION WITH PORTABLE GENERATOR
5
5
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 temperature 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 thermostat 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, page 4.
STORING, TRANSPORTING,
OR SHIPPING
Note:
If shipping transport companies require fuel tanks to be
empty.
1. Drain all fuel from fuel lines and pump/filter (see Fuel Filters,
page 11).
2. Clean and flush fuel filter in fuel pump if equipped (see Fuel
Filters, page 11).
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, page 4).
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:
during next heating season. Using old fuel could damage heater.
Do not store kerosene over summer months for use
OPERATION WITH PORTABLE
GENERATOR
WARNING: Before operating heater or any appliance from a portable generator, verify that generator
has been properly connected to earth ground. Improper grounding or failure to ground generator can
result in electrocution if a ground fault occurs. Refer
to owner’s manual supplied by generator manufacturer for proper grounding procedures.
The operating voltage range of the heater is 108 to 132 Volts (120
Volts +/- 10%). Prior to plugging heater into generator the output
voltage should be verified (if generator is equipped with the automatic
idle feature, the output voltage should be measured with the generator
running at full speed). If the voltage does not measure in this range
the heater should not be plugged into the generator.
Refer to Operation, pages 4 and 5, for starting, stopping, and
resetting heater procedures.
Alternator
Figure 5 - Typical Generator Grounding Method (Generator
construction may vary from that shown)
Ground Lug
Copper or Brass
Grounding Point
Ground Wire (#10 AWG Stranded-Copper)
105850-01D
Page 6
PREVENTATIVE MAINTENANCE SCHEDULE
TROUBLESHOOTING
6
PREVENTATIVE
MAINTENANCE SCHEDULE
Item
Fuel tank
Filler neck screen
Fuel filter assembly (Fuel tank)
Fuel filter lines
Fuel filter (In pump or external
canister)
Spark plug
Fan blades and air deflectors
Air passages around burner head
Motor
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
Check each season for dirt and debris
Not required, permanently lubricated
TROUBLESHOOTING
Note:
For additional help, visit DESA International’s
Technical Service web site at www.desatech.com.
WARNING: Never service heater while it is plugged
in, operating, or hot. Severe burns and electrical
shock can occur.
How To
See Storing, Transporting, or Shipping, page 5
Lift out of fuel tank and rinse with clean kerosene
See Fuel Filters, page 11
See Fuel Lines, Page 10
See Fuel Filters, page 11
See Spark Plug, page 9
See Fan Blades and Air Deflectors, page 9
Remove debris and trash with a clean, soft cloth
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.
OBSERVED PROBLEM
Motor does not start when heater is plugged
in and thermostat setting is higher than
surrounding air temperature
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 if damaged
B) Use extension cord with proper wire
size (see To Start Heater, page 4)
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 9
B) Remove debris from fan and fan
guard area
C) Turn fan by hand. If fan is hard to
turn, see Pump, page 10
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 4 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 10
105850-01D
Page 7
TROUBLESHOOTING
Continued
TROUBLESHOOTING
7
7
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 low 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, Transporting, or Shipping, page
5). Clean tank and fuel filters (see Fuel
Filters, page 11). Fill with clean fuel
C) Remove wrong fuel (see Storing,
Transporting, or Shipping, page 5).
Clean tank and fuel filters (see Fuel Fil-
ters, page 11). Fill with correct fuel
2. Replace nozzle (see Nozzle, page 9)
3. Move heater to warmer place until fuel
flows freely
4. Clean fuel filters (see Fuel Filters, page 11)
5. Adjust pump pressure (see Pump Pressure Adjustment sections, pages 9 and 10)
6. Connect spark plug wire to spark plug
7. A) Adjust electrode gap to .075" (see
Spark Plug, page 9)
B) Clean fuel from spark plug with
clean, soft cloth
C) Replace plug if heavily coated with
carbon (see Spark Plug, page 9)
D) Inspect plug for worn or eroded electrodes. If found, replace plug (see Spark
Plug, page 9)
8. Check electrical connections and voltage to solenoid. If good, replace solenoid valve
105850-01D
WARNING: High Voltage!
9. Damaged electronic ignitor
9. Replace electronic ignitor
Page 8
TROUBLESHOOTING
SERVICE PROCEDURES
8
TROUBLESHOOTING
Continued
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 Pressure Adjustment sections, pages 9 and 10)
2. Clean fuel filters (see Fuel Filters, page 11)
3. Replace nozzle (see Nozzle, page 9)
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 Pressure Adjustment sections, pages 9 and 10)
2. A) Add fuel to tank
B) Check fuel tank for bubbles of water
in bottom. If found, remove fuel (see
Storing, Transporting, or Shipping, page
5). Clean tank and fuel filters (see Fuel
Filters, page 11). Fill with clean fuel
C) Remove wrong fuel (see Storing,
Transporting, or Shipping, page 5).
Clean tank and fuel filters (see Fuel Fil-
ters, page 11. Fill with correct fuel
3. Clean fuel filters (see Fuel Filters, page 11)
4. Tighten all fuel line connections (see
Fuel Lines, page 10)
5. Replace nozzle (see Nozzle, page 9)
6. Check voltage 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 10)
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 6).
2. Lift upper shell off.
Upper Shell
Figure 6 - Upper Shell Removal, 600,000 Btu/Hr Model
105850-01D
Page 9
SERVICE PROCEDURES
Continued
SERVICE PROCEDURES
9
9
FAN BLADES AND AIR DEFLECTORS
1. Remove upper shell (see Upper Shell Removal, page 8).
2. Clean fan blades and air deflectors with clean, soft cloth moistened with kerosene or solvent (see Figure 7).
3. Dry fan blades and air deflectors thoroughly.
4. Replace upper shell.
Air Deflector
Fan Blade
Figure 7 - Fan Blades and Air Deflectors
SPARK PLUG
1. Remove upper shell (see Upper Shell Removal, page 8).
2. Remove spark plug wire from spark plug (see Figure 8).
3. Remove spark plug from burner head using 13/16"
open-end wrench (see Figure 8).
4. Replace spark plug if damaged or heavily coated with carbon.
5. Clean and regap spark plug electrodes to .075 inch (see Figure 9).
6. Install spark plug in burner head.
7. Attach spark plug wire to spark plug.
8. Replace upper shell.
Burner Head
Spark Plug
NOZZLE
1. Remove upper shell (see Upper Shell Removal, page 8).
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" nut-driver 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 10).
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.
Plug
Nozzle
Burner
Head
Fuel Line
Figure 10 - Replacing Nozzle
Spark Plug
Spark
Plug
Wire
Solenoid
Valve
Figure 8 - Spark Plug Removal
Figure 9 - Spark Plug Gap
105850-01D
Spark
Plug Wire
.075
inch
PUMP PRESSURE ADJUSTMENT FOR
HEATERS WITH FUEL FILTER/CANISTER
EXTERNAL TO PUMP
1. Remove pressure gauge plug from fuel pump port marked
“GAUGE.”
2. Install accessory pressure gauge (part number 110380-01) to fuel
pump port marked “GAUGE” (see Figure 11, page 10).
3. Start heater (see Operation, page 4). Allow motor to reach full speed.
4. Adjust pressure. Use small flat blade screwdriver to turn slotted screw at fuel pump pressure adjusting port. Turn screw
clockwise to increase pressure. Turn screw counterclockwise
to decrease pressure. See specifications in Figure 11, page 10,
for correct pressure for each model.
Page 10
SERVICE PROCEDURES
10
SERVICE PROCEDURES
Continued
5. Stop heater (see page 5).
6. Remove pressure gauge. Replace pressure gauge plug in fuel
pump port marked “GAUGE.”
Model Pump Pressure
350,000 Btu/Hr 100 PSI
600,000 Btu/Hr 110 PSI
Pressure
Gauge
i
s
p
Fuel Pump Port
Marked “GAUGE”
Figure 11 - Adjusting Pump Pressure
Fuel Pump Port
Marked “PRESS ADJ”
PUMP PRESSURE ADJUSTMENT FOR HEATERS
WITH FUEL FILTER INTERNAL TO PUMP
1. Remove pressure gauge plug from fuel pump port marked
“GAUGE.”
2. Install accessory pressure gauge (part number 130-24132) to
fuel pump port marked “GAUGE” (see Figure 12). Do not use
bleeder valve port to check the pressure. The bleeder valve
port contains pressure higher than operating pressure. Setting
pump pressure with gauge in the bleeder valve port results in
wrong operating pressure.
3. Start heater (see Operation, page 4). Allow motor to reach full speed.
4. Adjust pressure. Use small flat blade screwdriver to turn slotted screw at fuel pump port at top right side of pump. Turn
screw clockwise to increase pressure. Turn screw counterclockwise to decrease pressure. See specifications in Figure 12 for
correct pressure for each model.
5. Stop heater (see page 5).
6. Remove pressure gauge. Replace pressure gauge plug in fuel
pump port marked “GAUGE.”
PUMP
(Procedure if Pump is Binding)
1. Remove upper shell (see Upper Shell Removal, page 8).
2. Loosen hex screw on flange clamp at rear of motor with 5/16"
nut-driver (see Figure 13).
3. Turn fan with hand (see Figure 14).
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 13 - Location of Screw on Flange Clamp
Model Pump Pressure
350,000 Btu/Hr 100 PSI
600,000 Btu/Hr 110 PSI
Fuel Pump Port
Marked “GAUGE”
Figure 12 - Adjusting Pump Pressure
psi
Pressure
Gauge
Pressure
Adjustment
Port
Figure 14 - Turning Fan with Hand
FUEL LINES
(Procedure for tightening fuel lines)
1. Remove upper shell (see Upper Shell Removal, page 8).
2. Use an adjustable wrench as a backup on fittings.
3. Use 7/16" wrench and tighten fuel lines at solenoid valve, pump,
and fuel filter canister (if equipped) (see Figure 15, page 11).
105850-01D
Page 11
SERVICE PROCEDURES
Continued
Burner Head
Fuel Line
Solenoid Valve
Figure 15 - Fuel Line at Solenoid Valve
Fuel
Pump
SERVICE PROCEDURES
11
11
B. For Heaters With Fuel Filter/Canister External
To Pump
1. Unscrew canister bottom from canister top with adjustable pliers.
2. Remove fuel filter and gasket from canister bottom (see Figure 18).
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. Check for leaks.
Fuel Lines
Figure 16 - Fuel Lines at Pump
FUEL FILTERS
A. Tank Fuel Filter
1. Disconnect fuel lines from pump and fuel filter canister (if
equipped) with 7/16" wrench (see Figure 17).
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 fuel filter canister (if equipped).
Fuel Pump (Filter
Under Cover)
Canister Top
Gasket
Fuel Filter
Canister Bottom
Figure 18 - Fuel Pump Filter and Canister
C. For Heaters With Fuel Filter Internal To Pump
1. Remove pump cover to access filter
2. Rinse and wipe inside of pump cover and dry with clean cloth.
3. Rinse fuel filter in clean kerosene or blow compressed air from
inside out.
4. Reassemble. Tighten securely. Check for leaks.
Fuel Filter
Pump Cover
Figure 17 - Removing Tank Fuel Filter
105850-01D
Fuel Lines
Fuel Filter
Figure 19 - Fuel Pump and Filter
Page 12
ILLUSTRATED PARTS BREAKDOWN
12
ILLUSTRATED PARTS
BREAKDOWN
350,000 BTU
20
1
25
31
21
2
2
3
4
5
19
26
27
28
22
13
21
2
6
7
8
10
4
13
11
23
30
12
16
24
9
14
15
17
18
36
35
32
34
37
37
33
38
29
20
34
2
39
2
4
40
41
105850-01D
Page 13
PARTS LIST
350,000 BTU
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.
1 130-20768 Upper shell 1
2 130-20805 Screw, #10-16 x 1/2" 15
3 130-20776 Combustion chamber & shield 1
4 130-20931 Bushing 7
5 130-20942 Air deflector 5
6 400-20829 Burner head assembly 1
7 130-20828 Photocell assembly 1
8 130-20845 Fan 1
9 130-20937 Fan guard 1
10 120-20938 Fan switch 1
11 130-20939 Fan switch cover 1
12 130-20941 Sleeve 1
13 130-20806 Screw, #10-16 x 3/8" 13
14 † Motor & pump assembly 1
15 120-20892 Power cord 1
16 130-20940 Fuel line 1
17 120-20891 Ignition boot 1
18 120-20890 Electronic Ignitor 1
19 130-20769 Lower shell 1
20 130-20936 Clip nut 16
21 130-20815 Screw, #12-14 x 1/2" 14
22 130-20932 Bushing 2
23 120-20897 Wire harness 1
24 130-20943 Fuel line assembly 1
25 130-20780 Front handle 1
26 130-20944 Fuel cap 1
27 130-20946 Filler neck screen 1
28 130-20817 Screw, 1/4-20 x 2
29 130-20816 Screw, 1/4-20 x 1 1/2"2
30 130-20781 Rear handle 1
31 130-20779 Fuel tank 1
32 130-20846 Wheel support frame 1
33 130-20848 Axle 1
34 130-20818 Hex lock nut, 1/4-20 8
35 130-20847 Wheel 2
36 130-20824 Cotter pin, 5/32 x 1 1/4"2
37 130-20823 Flatwasher, 5/8" 4
38 130-20849 Wheel spacer 2
39 130-20945 Drain plug 1
40 120-20898 Thermostat 1
41 130-20807 Screw, #10-16 x 3/4" 2
1
/4"6
PARTS LIST
13
13
105850-01D
†Not available as complete assembly. See page 18.
Page 14
ILLUSTRATED PARTS BREAKDOWN
14
ILLUSTRATED PARTS
BREAKDOWN
600,000 BTU
16
25
3
33
1
2
2
4
15
24
17
23
22
27
26
5
13
2
6
45
7
10
46
4
13
18
2
4
28
34
11
19
8
12
20
30
9
14
21
31
32
42
41
35
15
43
43
44
36
25
2
37
39
15
16
38
29
40
2
47
105850-01D
Page 15
PARTS LIST
15
15
PARTS LIST
600,000 BTU
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.
1 130-21889 Upper Shell 1
2 130-20805 Screw, #10-16 x 1/2" 28
3 130-21890 Combustion chamber & shield 1
4 130-20931 Bushing 5
5 130-21891 Air deflector 5
6 † Burner head assembly 1
7 130-21892 Photocell assembly 1
8 130-21893 Fan 1
9 130-21894 Fan guard 1
10 120-20938 Fan switch 1
11 120-20939 Fan switch cover 1
12 130-20941 Sleeve 1
13 130-20806 Screw, #10-16 x 3/8" 15
14 † Motor & pump assembly 1
15 130-20818 Hex nut, 1/4-20 18
16 130-20936 Clip nut 18
17 130-20815 Screw, #12-14 x 1/2" 4
18 130-20932 Bushing 2
19 130-21895 Lower shell 1
20 130-21896 Fuel line 1
21 120-20892 Power cord 1
22 130-21897 Support bracket 2
23 130-21898 Screw, 1/4-20 x 3/8" 4
24 130-21899 Front handle 1
25 130-20816 Screw, 1/4-20 x 1 1/2"6
26 130-20944 Fuel cap 1
27 130-20946 Filler neck screen 1
28 130-21900 Wire harness 1
29 130-21901 Rear handle 1
30 400-21902 Fuel line assembly 1
31 120-20891 Ignition boot 1
32 120-20890 Electronic Ignitor 1
33 130-21903 Fuel tank 1
34 130-21904 Screw, 1/4-20 x 2 3/4"8
35 130-21905 Wheel support frame 1
36 130-20848 Axle 1
37 130-20945 Drain plug 1
38 130-21906 Screw, #6-32 x 3/8" 2
39 120-20898 Thermostat 1
40 130-21907 Thermostat bracket (Black) 1
41 130-20847 Wheel 2
42 130-20824 Cotter pin, 5/32 x 1 1/4"2
43 130-20823 Flatwasher, 5/8" 4
44 130-20849 Wheel spacer 2
45 130-21908 Photocell Bracket 1
46 130-21909 Screw, #6-32 x 3/8" 2
47 130-20807 Screw, #10-16 x 3/4" 2
** Internal lockwasher No. 6 2
130-21910 Nut, 6-32 2
105850-01D
† Not available as complete assembly. See page 18.
Not shown.
**Standard hardware item
Page 16
PARTS LIST
16
PART LIST
Burner Head Assembly 350,000 and 600,000 Btu/Hr
REF
NO. PART NO. DESCRIPTION QTY.
1 130-20808 Screw, #6-32 x 3/8" 2
2 130-20826 Photocell bracket 1
3 130-20830 Spark plug 1
4 130-20767 Nozzle (350,000 Btu/Hr) 1
130-21911 Nozzle (600,000 Btu/Hr) 1
5 130-20839 Plug 1
6 130-20836 Burner head body 1
7 130-20841 Straight nipple 1
8 120-20840 Solenoid valve 1
9 130-20842 Compression elbow 1
Motor and Pump Assembly 350,000 and 600,000 Btu/Hr
Heaters With Fuel Filter Internal To Pump
REF.
NO. PART NO. DESCRIPTION QTY.
1 130-20868 Wiring cover 1
2 130-20819 Screw, 5/16-24 x 5/16" 4
3 130-20820 External lockwasher, 5/16" 4
4 130-20806 Screw, #10-16 x 3/8" 3
5 130-20870 Motor (350,000 Btu/Hr) 1
130-21912 Motor (600,000 Btu/Hr) 1
6 130-20866 Flange clamp (holds pump to motor) 1
7 130-20865 Motor support (350,000 Btu/Hr) 1
130-21913 Motor support (600,000 Btu/Hr) 1
8 130-20842 Compression elbow 1
9 130-20867 Fuel pump 1
10 130-20925 Straight fitting 2
11 130-20811 Screw, #8-32 x 3/8" 1
12 130-22132 Strain relief bushing 1
13 ** Lockwasher, 5/16" 4
14 130-20821 Hex nut, 5/16-24" 4
15 130-20875 Flame-out control 1
16 130-20926 Snap bushing 3
17 130-20808 Screw, #6-32 x 3/8" 2
18 130-20896 Power relay 1
19 130-20895 Terminal board 1
20 130-20887 Terminal board 1
21 130-20927 Rivet 2
3
4
1
5
6
2
7
8
9
1
4
2
3
5
6
9
8
7
18
17
16 (3)
15
11
12
10
** Standard hardware item
19
20
21 (2)
13
14
105850-01D
Page 17
PART LIST
Motor and Pump Assembly 350,000 and 600,000 Btu/Hr
For Heaters With Fuel Filter/Canister External To Pump
PARTS LIST
17
17
REF.
NO. PART NO. DESCRIPTION QTY.
1 130-20868 Wiring cover 1
2 130-20819 Screw, 5/16-24 x 5/16" 4
3 130-20820 External lockwasher, 5/16" 4
4 130-20806 Screw, #10-16 x 3/8" 3
5 120-20870 Motor (350,000 Btu/Hr) 1
130-21912 Motor (600,000 Btu/Hr) 1
6 130-20866 Flange clamp
(holds pump to motor) 1
7 130-20865 Motor support (350,000 Btu/Hr) 1
130-21913 Motor Support (600,000 Btu/Hr) 1
8 130-20871 Street elbow 2
9 130-20872 Pipe nipple 1
10 400-20873 Fuel filter assembly 1
130-20874 Filter element (inside fuel filter
assembly, includes rubber
gaskets) 1
11 130-20869 90˚ Male elbow 1
12 130-20842 Compression elbow 1
13 130-20925 Straight fitting 1
14 130-20867 Fuel pump 1
15 130-20820** Lockwasher, 5/16" 4
16 130-20821 Hex nut, 5/16-24" 4
17 120-20875 Flame-out control 1
18 120-20896 Power relay 1
19 130-20926 Snap bushing 3
20 130-20808 Screw, #6-32 x 3/8" 2
21 130-22132 Strain relief bushing 1
22 130-20811 Screw, #8-32 x 1/4" 1
23 120-20887 Terminal board 1
24 120-20895 Terminal board 1
25 130-20927 Rivet 2
24
23
18
25
(2)
20
2
3
19
(3)
17
1
4
11
10
21
15
16
22
12
5
6
14
7
9
8
13
8
** Standard hardware item
105850-01D
Page 18
18
SPECIFICATIONS
WIRING DIAGRAM
MAINTENANCE KITS
ACCESSORY
TECHNICAL SERVICE
REPLACEMENT PARTS
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
132
FAN
SWITCH
PLUG
GREEN
120V
60Hz
BLACK BLACK
RED ORANGE
WHITE
BLACK
WHITE
THERMOSTAT B
TERMINAL
BOARD
IGNITOR
WHITE
ORANGE
MOTOR
WHITE
WHITE
WHITE
ELECTRONIC
TERMINAL
BOARD
WHITE
SPARK
PLUG
WHITE
SOLENOID
VALVE
PHOTOCELL
YELLOW
YELLOW
YELLOW
BLUE
FLAME-OUT
CONTROL
R
RED
RED
BLUE
RESET
BUTTON
ACCESSORY
Purchase this heater accessory from your nearest dealer or service
center. If they cannot supply this accessory, contact L. B. White’s
Part’s Department at 1-800-345-7200 for information.
FUEL PRESSURE
GAUGE - 130-24132
Special tool to check fuel pump
pressure
TECHNICAL SERVICE
You may have further questions about installation, operation, or
troubleshooting. If so, contact L. B. White’s Technical Service
Department at 1-800-345-7200. When calling please have your
model and serial numbers of your heater ready.
MAINTENANCE KITS
Kit Part Number
Flame-Out Control 500-20904
Spark Plug 500-20905
105850-01D
Page 19
NOTES
NOTES
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19
19
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105850-01D
Page 20
20
for purchasing L. B. White. This L. B. White heater
incorporates the benefits from the most experienced
manufacturer of heating products using state-of-the-art
technology.
Thank
If you have any suggestions or comments, please call
us toll-free at 1-800-345-7200 or write or fax us at:
you
L.B. White Co., Inc.
W6636 L.B. White Road
Onalaska, Wisconsin 54650
Fax: 608 783-6115
A. Equipment
L.B. White Co., Inc. warrants that the component parts
of its equipment are free from defects in material and
workmanship, when properly operated and maintained
in accordance with the maintenance instructions,
safety guides and labels contained with each unit. If,
within 12 months from the date of purchase by the
end user, any component is found to be defective, L. B.
White Co., Inc. will, at its option, repair or replace the
defective part or equipment with a new part or equip-
ment, F.O.B., Onalaska, WIsconsin.
I. WARRANTY
B. Parts
L. B. White Co., Inc. warrants that replacement parts
purchased from the company and used on the appropriate L. B. White equipment are free from defects both in
material and workmanship for 12 months from the
date of purchase by the end user. Warranty is auto-
matic if a component is found defective within 12
months of the date code marked on the part. If the defect
occurs more than 12 months later than the date code but
within 12 months from the date of puchase by the end
user, a copy of a bill of sale will be required to establish
warranty qualification.
II. GENERAL INFORMATION
IMPORTANT
This Owner’s Manual and all safety-related information as shipped with this unit should be kept by the
owner for future reference.
Read this Owner’s Manual and any other safetyrelated information accompanying this product before
attempting to use or service it.
Save this manual and all other safety-related information for future reference.
W6636 L.B. White Rd., Onalaska, WI 54650 ■ (800) 345-7200 ■ (608) 783-5691 ■ Fax: (608) 783-6115
This manual will instruct you in the service and care of your
unit. The parts lists within this manual are designed for ease
of parts selection. Wherever possible, the parts list allows
parts selection without use of the model number. Parts may
be selected by referring to applicable illustrations.
Contact your local L. B. White distributor or the L. B. White
Co., Inc. for assistance or if you have any questions about the
use of the equipment or its application.
The L. B. White Co., Inc. has a policy of continuous product
improvement. It reserves the right to change specifications
and design without notice.
105850-01
Rev. D
08/03
150-24136
105850-01D
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