L.B. White Tradesman K70 User manual

Save this manual for future reference.
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.
MODELS: CP070CK AND CP165DK
HEATER SIZE: 70,000 AND 165,000 BTU/HR
H.S.I. SERIES
TRADESMAN K70 & KI65
KEROSENE PORTABLE FORCED AIR HEATERS
(WITH BUILT-IN THERMOSTAT)
OWNER’S MANUAL
TABLE OF CONTENTS
Safety Informa ion ............................................... 2
Unpacking ........................................................... 3
Product Identification ........................................... 3
Fuels .................................................................... 4
Ventilation ............................................................ 4
Theory of Operation ............................................ 4
Assembly ............................................................. 5
Operation
............................................................. 5
Operation With Portable Generator
..................... 6
Storing, Transporting, or Shipping ....................... 6
Preventative Maintenance Schedule ................... 7
Troubleshooting ................................................... 7
Service Procedures ............................................. 9
Specifications .................................................... 14
Wiring Diagram .................................................. 15
Replacement Parts
............................................ 15
Technical Service .............................................. 15
Accessories ....................................................... 15
Illustrated Parts Breakdown and Parts List ....... 16
Warranty ..............................................Back Cover

114278-01C2
SAFETY INFORMATION
WARNING: This product con-
tains 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 head-
aches, 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 warn-
ings. Keep this manual for reference. It is your
guide to safe and proper operation of this heater.
1. Use only kerosene, #1#2 diesel/fuel oil, JET A
or JP-8 fuels to avoid risk of fire or explosion.
Never use gasoline, naphtha, paint thinners,
alcohol, or other highly flammable fuels.
2. Fueling
a) Personnel involved with fueling shall be
qualified and thoroughly familiar with the
manufacturerʼs instructions and applicable
regulations regarding the safe fueling of
heating units.
b) Only the type of fuel specified on the
heaterʼs 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 dayʼs 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 (762 cm) 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
authority having jurisdiction.
3. Use only the electrical voltage and frequency
specified on model plate.
4. Heater must be grounded. Use only a properly
grounded three-wire extension cord. Plug into
grounded outlet only.
5. Use only in areas free of flammable vapors or
high dust content.
6. Minimum clearance from any combustible
materials: 8 feet (244 cm) from hot air outlet;
4 feet (122 cm) from top; and 4 feet (122 cm)
from sides and inlet.
7. Locate heater on a stable and level surface
while hot or operating or a fire may occur.
8. Use only in well-vented areas. Before using
heater, provide at least a three-square-foot
(2800 square cm) opening of fresh, outside air
for each 100,000 Btu/Hr (30 kw) of rating.
9. Keep children and animals away from heater
at all times.
10. Never start heater when combustion chamber
is hot or if fuel has accumulated in combustion
chamber.
11. When used with thermostat, heater may start
at anytime.
12. When heater is moved or stored, it must be in
a level position or fuel spillage may occur.
13. Use heater only in accordance with local
ordinances and codes.
14. Never use gasoline, crankcase drainings,
naphtha, paint thinners, alcohol, or other
highly flammable fuels.
15. Never use heater where gasoline, paint thin-
ner, or other highly flammable vapors are
present.
16. Never use heater in living or sleeping areas.
17. Never leave a heater plugged in without adult
supervision if children or animals are likely to
be present.

114278-01C 3
18. Never move, handle, refuel, or service a hot,
operating, or plugged-in heater.
19. Never attach duct work to front or rear of
heater.
20. Never attach heater to external fuel tank.
21. 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 (304.8 cm). 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.
22. Unplug heater when not in use.
23. Never block air inlet (rear) or air outlet (front)
of heater.
24. Warning to New York City Residents
For Use Only At Construction Sites in ac-
cordance with applicable NYC codes under
NYCFD certificate of approval #4803, #4899,
#4908, #4909, or #4934.
UNPACKING
1. Remove all packing items applied to heater
for shipment.
2. Remove all items from carton.
3. Check items for any shipping damage. If
heater is damaged, promptly inform dealer
where you bought heater.
SAFETY INFORMATION
Continued
Side Cover
Fuel
Cap/
Gauge
Hot Air Outlet
Side Cover
Fuel
Tank
Hot Air
Outlet Fan Guard
Air Filter
End
Cover
Fuel Cap/Gauge
Ignition Control
Assembly (On
Inside of Side
Cover)
Ignition Control
Assembly (On Inside
of Side Cover)
Figure 1 - 70,000 Btu Model
Figure 2 - 165,000 Btu Model
Thermostat Knob
(Thermostat
Models Only)
Fuel
Tank
Fan Guard
Thermostat Knob
(Thermostat
Models Only)
ON/OFF Switch
with Light
ON/OFF Switch
with Light
PRODUCT
IDENTIFICATION

114278-01C4
FUELS
WARNING: Use only kero-
sene, #1/#2 diesel/fuel oil, JET A
or JP-8 fuels to avoid risk of fire or
explosion. Never use gasoline, oil
drained from crankcases, naph-
tha, paint thinners, alcohol or
other highly flammable fuels.
Use only kerosene, #1/#2 diesel/fuel oil, JET A or
JP-8 fuels. Heavier fuels such as No. 2 fuel oil or No.
2 diesel fuel may also be used but will result in:
• noticeable odor
• additional fuel filter maintenance
• the need for nontoxic, anti-icer additives in very
cold weather
Do not use fuels heavier than No. 2 grade or
heavy oils such as oil drained from crankcases.
These heavy oils will not ignite properly and will
contaminate the heater.
IMPORTANT: Use a KEROSENE ONLY (blue) or
DIESEL ONLY (yellow) storage container. Be sure
storage container is clean. Foreign matter such as rust,
dirt, or water will cause the ignition control assembly
to shut down heater. Foreign matter may also require
heaterʼs fuel system to be frequently cleaned.
Figure 3 - Cross Section Operational View
Clean
Heated
Air Out
Air Output
Filter
Air Pump Air Intake
Filter
Cool
Air In
Fan
Combustion
Chamber Ignitor
Air For Fuel
System
Air For
Combustion
And Heating
Fuel
Fuel Tank
Motor
Nozzle Fuel
Filter
Air Line
To Burner
Ignition Control
Assembly
VENTILATION
WARNING: Provide a fresh air
opening of at least three square
feet (2,800 square cm) for each
100,000 Btu/hr rating. Provide
extra fresh air if more heaters
are being used. The minimum
ventilation requirements must
be followed to avoid risks as-
sociated with carbon monoxide
poisoning. Make certain these
requirements are met prior to
operating heater.
Example: A 200,000 Btu/Hr (58.6 kw) heater
requires one of the following:
• a two-car garage door [16 feet (4.88 meter)
opening] raised 5" (12.7 cm)
• a single-car garage door [9 feet (2.74 meter)
opening] raised 8" (20.3 cm)
• two, 30" (76.2 cm) windows raised 15"
(38.1 cm)
THEORY OF OPERATION
The Fuel System: The air pump forces air through the air line. The air is then pushed through the
nozzle. This air causes fuel to be lifted from the tank. A fine mist of fuel is sprayed into the combus-
tion 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 ignition control assembly provides power to the ignitor. This ignites the
fuel/air mixture in the combustion chamber.
The Flame-Out Control System: This system causes the heater to shut down if the flame goes out.

114278-01C 5
ASSEMBLY
(FOR 165,000 BTU MODEL ONLY)
These models are furnished with wheels and a
handle. Some models are furnished with a second
handle also. Wheels, handle(s), and the mounting
hardware are found in the shipping carton.
Tools Needed
• Medium Phillips Screwdriver
• 3/8" Open or Adjustable Wrench
• Hammer
1. Slide axle through wheel support frame. Install
wheel spacers if provided. Install wheels on axle.
IMPORTANT: When installing wheels, point
extended hub of wheels toward wheel support
frame (see Figure 6).
2. Place cap nuts on axle ends. Gently tap with
hammer to secure.
3. Place heater on wheel support frame. Line up
holes on fuel tank flange with holes on wheel
support frame.
4. Place handle(s) on top of fuel tank flange.
Insert screws through handle(s), fuel tank
flange, and wheel support frame. Attach nut
finger tight after each screw is inserted.
5. After all screws are inserted, tighten nuts
firmly.
Figure 4 - Wheel and Handle Assembly,
165,000 Btu Model Only
Wheel Support
Frame
Fuel Tank
Flange
Cap Nut
Wheel
Nut
Axle Extended
Hub
Air
Inlet
Handle
Hot Air
Outlet
Screw
OPERATION
IMPORTANT: Review and under-
stand the warnings in the Safety
Information section, page 2.
They are needed to safely oper-
ate this heater. Follow all local
ordinances and codes when
using this heater.
TO START HEATER
1. Follow all ventilation and safety information.
2. Locate heater to provide maximum circulation
of the heated air. Follow all location require-
ments noted in Safety Information, page 2.
3. Fill fuel tank with kerosene, #1#2 diesel/fuel
oil, JET A or JP-8 fuel.
4. Attach fuel cap.
5. For thermostat models, turn thermostat knob
clockwise to the high position.
6. Plug heaterʼs power cord into approved,
grounded, three-wire extension cord. Extension
cord must be at least six feet (1.8 m) long.
Extension Cord Size Requirement
6 to 10 feet (1.8 to 3 meters) long, use 18 AWG
(0.75 mm2) rated cord
11 to 100 feet (3.3 to 30.5 m) long, use 16
AWG (1.0 mm2) rated cord
101 to 200 feet (30.8 to 61 m) long, use 14
AWG (1.5 mm2) rated cord
7.
Plug extension cord into standard 120 volt/60
hertz, 3-prong grounded outlet.
Note: For heater without ON/OFF switch,
ignitor will preheat for five seconds, then
heater will start.
Note: For heater with ON/OFF switch, push
switch to ON(|) position and heater should
start in 5 seconds. If heater does not start, see
Troubleshooting, page 7.
8. For thermostat models, adjust thermostat knob
to the desired setting. 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.
TO STOP HEATER
Without ON/OFF Switch
Unplug extension cord from outlet.
With ON/OFF Switch
Push ON/OFF switch to OFF (O) position. Unplug
heater when not in use.
Wheel Spacer
(If Provided)
Cord Cleat with Bolts
and Nuts (If Provided,
Set of Two for Right or
Left Side)

114278-01C6
Figure 7 - Typical Generator Grounding
Method (Generator construction may
vary from that shown)
Ground Lug
Ground Wire (#10
AWG - Stranded-
Copper)
Alternator
Copper
or Brass
Grounding
Point
TO RESTART HEATER
Without ON/OFF Switch
1. Unplug extension cord from outlet and wait
10 seconds. (Wait two minutes if heater has
been running.)
2. Repeat steps under To Start Heater.
With ON/OFF Switch
1. Push ON/OFF switch to OFF (O) position
and wait 10 seconds (2 minutes if heater has
been running).
2. Repeat steps under To Start Heater, page 5.
OPERATION
Continued
Figure 5 - ON/OFF Switch, 70,000 Models
Figure 6 - ON/OFF Switch, 165,000 Models
ON/OFF
Switch with
Light
ON/OFF
Switch with
Light
OPERATION WITH
PORTABLE GENERATOR
WARNING: Before operating
heater or any appliance from a
portable generator, verify that
generator has been properly con-
nected to earth ground. Improper
grounding or failure to ground
generator can result in electro-
cution 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 au-
tomatic 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, page 5, for starting, stopping,
and resetting heater procedures.
STORING, TRANSPORTING,
OR SHIPPING
Note: If shipping, transport companies require
fuel tanks to be empty.
1. Drain fuel tank. Note: Some models have
drain plug on underside of fuel tank. If so, re-
move drain plug to drain all fuel. If heater does
not have drain plug, drain fuel through fuel cap
opening. Be sure all fuel is removed.
2. Replace drain plug if provided.
3. 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.
4. Replace fuel cap or drain plug. Properly dis-
pose of old and dirty fuel. Check with local
automotive service stations that recycle oil.
5. If storing, store heater in dry place. Make sure
storage place is free of dust and corrosive
fumes.
IMPORTANT: Do not store kerosene over summer
months for use during next heating season. Using
old fuel could damage heater.

114278-01C 7
PREVENTATIVE MAINTENANCE SCHEDULE
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 6
See Air Output, Air Intake, and
Lint Filters, page 9
See Air Output, Air Intake, and
Lint Filters, page 9
See Fuel Filter, page 10
See Fan, page 9
Item
Fuel tank
Air output and lint filters
Air intake filter
Fuel filter
Ignitor
Fan blades
Motor
How Often
Flush every 150-200 hours of operation
or as needed
Replace every 500 hours of operation
or once a year
Wash and dry with soap and water every
500 hours of operation or as needed
Clean twice a heating season or as
needed
No maintenance required
Clean every season or as needed
Not required/permanently lubricated
TROUBLESHOOTING
WARNING: Never service heater while it is plugged in, operating,
or hot. Severe burns and electrical shock can occur.
POSSIBLE CAUSE
1. No power to heater
2. ON/OFF switch not in the
ON(|) position
3. If equipped, thermostat setting
is too low
4. Bad electrical connection be-
tween motor and ignition con-
trol assembly or ignition control
assembly and power cord
5. Binding pump rotor
6. Defective ignition control as-
sembly
7. Defective motor
8. Blown fuse or ignitor control
assembly
REMEDY
1. Check circuit breaker in elec-
trical panel
2. Verify the ON/OFF switch is in
ON (|) position and light is on
3. Turn thermostat knob to a
higher setting
4. Check all electrical connec-
tions. See Wiring Diagram,
page 15
5. If fan does not turn freely, see
Pump Rotor, page 13
6 Replace ignition control as-
sembly
7. Replace motor
8. See Ignition Control Assem-
bly, page 14
FAULT CONDITION
Motor does not start five seconds
after heater is plugged in
WARNING: High voltage!

114278-01C8
POSSIBLE CAUSE
1. No fuel in tank
2. Pump pressure incorrect
3. Dirty fuel filter
4. Obstruction in nozzle
5. Water in fuel tank
6. Bad electrical connection
between ignitor and ignition
control assembly
7. Defective ignitor
8. Defective ignition control as-
sembly
1. Pump pressure incorrect
2. Dirty air intake, air output,
and/or lint filter
3. Dirty fuel filter
4. Obstruction in nozzle
5. Photocell assembly not properly
installed (not seeing the flame)
6. Dirty photocell lens
7. Bad electrical connection
between photocell and ignition
control assembly
8. Defective photocell
9. Defective ignition control as-
sembly
REMEDY
1. Fill tank with kerosene
2. See Pump Pressure Adjust-
ment, page 10
3. See Fuel Filter, page 10
4. See Nozzle Assembly, page 13
5. Drain and flush fuel tank with
clean kerosene. See Storing,
Transporting, or Shipping,
page 6
6. Check electrical connections.
See Wiring Diagram, page 16
7. Replace ignitor, see page 11
8. Replace ignition control as-
sembly
1. See Pump Pressure Adjust-
ment, page 10
2. See Air Output, Air Intake, and
Lint Filters, page 9
3. See Fuel Filter, page 10
4. See Nozzle Assembly, page 13
5. Make sure photocell boot is
properly seated in bracket
6. Clean photocell lens
7. Check electrical connections.
See Wiring Diagram, page 16
8. Replace photocell
9. Replace ignition control as-
sembly
FAULT CONDITION
Motor starts and runs but heater
does not ignite
Heater ignites but ignition con-
trol assembly shuts heater off
after a short period of time
WARNING: High voltage!
TROUBLESHOOTING
Continued
WARNING: High voltage!

114278-01C 9
SERVICE PROCEDURES
WARNING: To avoid risk of
burn and electrical shock, never
attempt to service heater while it
is plugged in, operating, or hot.
UPPER SHELL REMOVAL
1. Remove screws along each side of heater using
5/16" nut-driver. These screws attach upper and
lower shells together. See Figure 8 or 9.
2. Lift upper shell off.
3. Remove fan guard.
Upper Shell
Fan Guard
Figure 8 - Upper Shell Removal,
70,000 Model Only
Figure 9 - Upper Shell Removal,
165,000 Model Only
Fan
Guard
Upper Shell
Screw
Screw
FAN
IMPORTANT: Remove fan from motor shaft
before removing motor from heater. The weight
of the motor resting on the fan could damage the
fan pitch (see Figure 10).
1. Remove upper shell (see Figure 8 or 9).
2. Use 1/8" allen wrench to loosen setscrew
which holds fan to motor shaft.
3. Slip fan off motor shaft.
Motor Shaft
Setscrew
Figure 10 - Fan, Motor Shaft, and
Setscrew Location
Motor
Shaft
Fan
Setscrew
Figure 11 - Fan Cross Section
Fan
Flush
Motor
4. Clean fan using a soft cloth moistened with
kerosene or solvent.
5. Dry fan thoroughly.
6. Replace fan on motor shaft. Place fan hub flush
with end of motor shaft (see Figure 11).
7. Place setscrew on flat of shaft. Tighten setscrew
firmly (40-50 inch-pounds/4.5-5.6 n-m).
8. Replace fan guard and upper shell.
AIR OUTPUT, AIR INTAKE AND LINT
FILTERS
1. Remove upper shell (see Figure 8 or 9).
2. Remove filter end cover screws using 5/16" nut-
driver (see Figure 12 or Figure 13, page 10).
3. Remove filter end cover.
4. Replace air output and lint filters.
5. Wash or replace air intake filter (see Preventa-
tive Maintenance Schedule, page 7).
Air Intake Filter
Lint Filter
Filter End
Cover
Air Output Filter
Figure 12 - Air Output, Air Intake, and
Lint Filters, 70,000 Model Only

114278-01C10
SERVICE PROCEDURES
Continued
Figure 13 - Air Output, Air Intake, and
Lint Filters, 165,000 Model Only
Air Intake Filter
Filter End
Cover
Lint Filter
Air Output Filter
6. Replace filter end cover.
7. Replace fan guard and upper shell.
IMPORTANT: Do not oil filters.
PUMP PRESSURE ADJUSTMENT
1. Remove pressure gauge plug from filter end
cover (see Figure 14).
2. Install accessory pressure gauge (part number
HA1180).
3. Start heater (see Operation, page 5). Allow
motor to reach full speed.
4. Adjust pressure. Turn relief valve to right to
increase pressure. Turn relief valve to left to
decrease pressure. See specifications correct
pressure for each model (see Figure 15).
5. Remove pressure gauge. Replace pressure
gauge plug in filter end cover.
Figure 14 - Pressure Gauge Plug
Removal (70,000 Btu Model Shown)
Pressure
Gauge
Plug
Pressure
Gauge
Figure 15 - Adjusting Pump Pressure
(70,000 Btu Model Shown)
Relief
Valve
Pump
Model Pressure
70 4.7 PSI
165 5.6 PSI
FUEL FILTER
1. Remove side cover screws using 5/16" nut-
driver.
2. Remove side cover.
3. Pull upper fuel line off fuel filter neck (see
Figure 16 or 17).
4. Carefully pry bushing, fuel filter, and lower
fuel line (165,000 model only) out of fuel tank
(see Figure 17).
5.
Wash fuel filter with clean fuel and replace in
tank.
6. Attach upper fuel line to fuel filter neck.
7. Replace side cover.
Figure 16 - Fuel Filter Removal,
70,000 Model
Fuel Filter and
Bushing
Side Cover
Upper Fuel Line
Fuel Filter, Bushing,
and Lower Fuel Line
Upper Fuel Line
Side
Cover
Figure 17 - Fuel Filter Removal,
165,000 Model