L.B. White CP400DK, CP650DK User Manual

Owner's Manual and Instructions

Tradesman Kerosene Heaters

MODELS OUTPUT(BTUH) FUEL

CP400DK 400,000
CP650DK 650,000

Certification by:

1-K

Kerosene

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Congratulations!

heater available.

Your new L.B.White heater incorporates the benefits from the most experienced
manufacturer of heating products using state-of-the-art technology.

We, at L.B.White, thank you for your confidence in our products and welcome any
suggestions or comments youmay have...call us, toll-free, at [phone]
or e-mail [e-mail]

ATTENTION ALL USERS

This heater has been tested and evaluated by C.S.A. International in accordance with
the requirements of Standard UL733 and ANSI A10.10-1998, CAN/CSA B140.0-03
and CSA B140.8 - 1967 and is listed and approved as a Kerosene forced-air
construction heater with application for the temporary heating of buildings under
construction, alteration, or repair. If you are considering using this product for any
application other than its intended use, then please contact the L.B. White Co., Inc.

411 Mason St., Onalaska, WI 54650

150-27543

GENERAL HAZARD WARNING

Failure to comply with the precautions and instructions provided with this heater, can result in:
— Death
— Serious bodily injury or burns
—
— Asphyxiation due to lack of adequate air supply or carbon monoxide poisoning
— Electrical shock

Read this Owner’s Manual before installing or using this product.

Only properly-trained service people should repair or install this heater.

Save this Owner’s Manual for future use and reference.

Owner’s Manuals and replacement labels areavailable at no charge. See website, or for assistance, contact
L.B. White at 800-345-7200.

WARNING

Fire and Explosion Hazard

Not for home or recreational vehicle use.

Installation of this heater in a home or recreational

Fire or explosions can cause property damage or loss
of life.

FOR YOUR SAFETY

and liquids in the vicinity of this or any other appliance.

WARNING

Fire and Explosion Hazard

Keep solid combustibles a safe distance away from

the heater.

Solid combustibles include wood, paper, or plastic
products, building materials and dust.

Do not use the heater in spaces which contain or may

contain volatile or airborne combustibles.

Volatile or airborne combustibles include gasoline,
solvents, paint thinner, dust particles or unknown
chemicals.

or explosion.

Fire or explosions can lead to property damage,
personal injury or loss of life.

2

IMKFA400T-KDX

Table of Contents

SECTION PAGE

General Information 3
Heater Specifications 4
Information
Hazard Definitions 5
General Safety Information 5
Installation & Assembly
Heater Specifications 7
Assembly 7
Operation
Overview of Heater Design 11
The Safety System 11
Fuel Selection 11
Fueling Your Heater 12
To Start Heater 12
To Shutdown Heater 12
To Restart Heater 12
Extra Electrical Outlet 13
Longterm Storage of Your Heater 13
Maintenance
Fan Blade and Air Deflector 14
Nozzle 15
Spark Plug 15
Photocell 16
Fuel Lines 16
Fuel Filter 16
Pump Pressure Adjustment 17
Replacing Fuse 18
Wiring Diagram 18
Troubleshooting 19
Parts Identification
Parts Schematic CP400DK 20
Parts List CP400DK 21
Parts Schematic CP650DK 22
Parts List CP650DK 23
Parts Schematic Burner Head CP400DK,CP650DK 24
Parts Schematic Burner Assembly CP400DK, CP650DK 25
Parts Schematic Handle and Wheels CP400DK 26
Parts Schematic handle and Wheels CP650DK 27
Warranty Information 28

This Owner's Manual includes all options and accessories
commonly used on this heater.

When calling for technical service assistance, or for other
specific in for mation , always have model number,
configuration number and serial number available. This
information is contained on the dataplate.

This manual will instruct you in the operation and care of
your unit. Have your qualified installer review t
with you so that you fully understand the heater and how it
functions.

his manual

General Information

The installation, repair, and servicing of the heater
requires continuing expert training and knowledge of
kerosene heaters and should not be attempted by anyone
who is not so qualified.

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 eq

The L.B. White Co., Inc. has a policy of continuous product
improvem ent . It reser ves the r ight to c hange
specifications and design without notice.

uipment or its application.

3

Heater Specifications

Model

S

PECIFICATIONS

Fuel Type 1-K, Kerosene

Max Input (BTUH) 400,000 650,000

Pump Pressure (psig) 125 110

Fuel Consumption per Hour (gal) 3.0 4.9

Motor Characteristics

Electrical Supply (Voltz/Hz/Phase) 120/60/1

Amp Draw

Dimensions (Inches) Length x width x height 52.5” x 31.4” x 32.8” 69.2” x 32.8” x 48.7”

Minimum Safe
Distances From
Nearest
Combustible
Materials

Net Weight (Lbs.) 150 276

CONTINUOUS
OPERATION

TOP 4 ft.
SIDES 4 ft.
BACK 4 ft.
BLOWER OUTLET 8 ft.
BULK FUEL STORAGE CONTAINER 25 ft.

CP400DK CP650DK

Ball Bearing

1/2 HP, 1710 RPM

4.4 7.1

3/4 HP, 1680 RPM

Shipping Weight (Lbs.) 163 298

Minimum Ambient Temperature
in Which Heater May Be Used

4

-20oF

Safety Information

HAZARD DEFINITIONS

DANGER

Indicates an imminently hazardous situation which, if not

avoided WILL result in death or serious injury.

WARNING

Indicates a potentially hazardous situation which, if not

avoided, COULD result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not

avoided, MAY result in minor or moderate injury.

GENERAL SAFETY INFORMATION

WARNING

Before using this heater, please read this USER’S

MANUAL very carefully. This USER’S MANUAL has been

designed to instruct you as to the proper manner in which

to assemble, maintain, store, and most importantly, how

to operate the heater in a safe and efficient manner.

WARNING

Never leave the heater unattended while burning!

DANGER

Improper use of this heater can result in serious injury or

death from burns, fire, explosion, electrical shock, and/or

carbon monoxide poisoning.

5

GENERAL SAFETY INFORMATION (cont.)

WARNING

Risk of CO Poisoning!

- Use this heater only in well ventilated areas.
Provide proper ventilation. Proper ventilation air for
combustion must be provided in accordance with
OSHA 29 CFR 1926.154, Temporary Heating Devices.
ANSI A 10.10, Safety Requirements for Temporary
and Portable Space Heating Devices, or the Natural
Gas and Propane Installation Code, CAN/CSA B149.1
as appropriate.

- Never use this heater in living or sleeping areas.

- Carbon Monoxide Poisoning: Early signs of carbon

such as headaches, dizziness, and/or nausea. If you
have these symptoms, your heater may not be
working properly.

- Get fresh air at once! Have the heater serviced.

- People with breathing problems should consult a
physician before using the heater.

WARNING

Risk of Electric Shock!

- Use only the electrical power (voltage and

heater. Use only a three prong, grounded outlet and
extension cord.

- ALWAYS install the heater so that it is not directly

exposed to water spray, rain, dripping water, or wind.

CANADIAN RESIDENTS: Use of this heater shall be in

accordance with authorities having jurisdiction and
CSA Standard B139.

F

or CP400DK only.

NEW YORK CITY RESIDENTS: For use only at construction
sites in accordance with applicable NYC codes under

WARNING

Risk of Burns/Fire/Explosion!

- Keep all combustible materials away from this heater.
Minimum Clearances
Outlet 8 feet (250 cm)
Sides, Top and Rear 4 feet (125 cm)

- NEVER use fuels such as gasoline, benzene, paint
thinners, or other oil compounds in this heater
(RISK OF FIRE OR EXPLOSION).

­ be present.

­ operating or still hot. This heater is EXTREMELY HOT
while in operation.

- NEVER block air inlet (rear) or air outlet (front) of
heater.

- NEVER use ductwork in front or at rear of heater.

- ALWAYS unplug the heater when not in use.

WARNING: This product and the fuel used to operate

this product (kerosene or other approved fuels), and the
products of combustion of such fuel, can expose you to
chemicals including benzene, which is known to the State
of California to cause cancer and reproductive harm.

For more information go to www.p65Warnings.ca.gov

MASSACHUSETTS RESIDENTS: Massachusetts state law

prohibits the use of this heater in any building which is
used in whole or in part for human habitation. Use of this

permit (M.E.L.C. 148, Section 10A).

6

- NEVER move or handle heater while still hot.

- NEVER transport heater with fuel in its tank.

- When used with optional thermostat or if equipped
with a thermostat, the heater may start at any time.

- ALWAYS locate heater on a stable and level surface.

- NEVER use any fuel other than 1-K kerosene,

#1/#2 disel/fuel oil, JET A or JP-8 fuels in this heater.

- Bulk fuel storage should be a minimum of 25 ft. from
heaters, torches, portable generators, or other
sources of ignition. All fuel storage should be in
accordance with federal, state, or local authorities
having jurisdiction.

Installation and Assembly Instructions

HEATER SPECIFICATIONS

Introduction

Please read this USER’S MANUAL carefully. It will show you how to
assemble, maintain and operate this heater safely and efficiently to
obtain the full benefits of its many features.
Consumer: Retain these instructions for future reference.

U

npacking

1. Remove all packing items applied to heater for
shipment.

2. Remove all items from carton.

3. Check all items for shipping damage.
If heater is damaged, promptly inform dealer where you
purchased heater.

DIMENSIONS & ASSEMBLY INSTRUCTIONS -CP400DK
PRODUCT FEATURES

32.8"

52.5"

FFiigguurree 11 –– HHeeaatteerr DDiimmeennssiioonnss

Lower Shell

Hot Air Outlet

Fuel Gauge

Fuel Cap

Thermostat Knob

Room Temp. Display

Lamp

31.4"

Front Handle

Upper Shell

Rear Handle

Cord Wrap

Fan Guard

Fuel Tank

Fuel Drain Bolt

Figure 2 – Model CP400DK Features

Operating Switch

Power Cord(Piggy Back)

47

DIMENSIONS & ASSEMBLY (cont.)

Wheels Cord Wraps

FFiigguurree 33 –– CCoommppoonneennttss

ASSEMBLY FOR CP400DK

TOOLS REQUIRED

• Medium Phillips screwdriver

• Adjustable wrench,

SSEMBLING WHEEL & HANDLE

A

Front Handle

Wheel Support Frame

Screw (L) Screw (S)

Bushing WashersCap Nuts Cap Nuts(S)

Threaded Axle

Do not operate heater without support frame fully

-

assembled to tank.

Nut

Rear Handle

CAUTION

Risk of fire or explosion

1. Slide threaded axle through the rear section of the
wheel support frame.

2. Slide one axle bushing on to each side of the axle.
Slide one wheel on to each side of the axle.

3. Attach one cap nut on to each side of the threaded
axle and tighten well

4. Place heater on wheel support frame.
Make sure air inlet end (rear) of heater is over
wheels. Align the holes on fuel tank flange.
Insert screws(L) through handles (front and Rear),
fuel tank flange, and wheel support frame.
Insert screws(S) through rear handle,
fuel tank flange, and washer(S) as shown in
figure 4 and attach nut finger tight after each
screw is inserted.

5. After all screws are inserted, tighten nuts firmly.

6. Align the hole on the rear handle with the
mounting hole on the cord wrap.

7. Insert screws through cord wrap, rear handle as
shown in Figure 4 and attach nut finger tight
after each screw is inserted.

8. After all screws are inserted, tighten nuts firmly.

Handle

Fuel Tank Flange

Wheel Support Frame

Wheel

Cap Nut (L)

Nut

Bushing

Screw (L)

Washer

Screw (S)

Air Inlet

Threaded Axle

Cap Nut (S)

Cord Wrap

Screw (S)

FFiigguurree 44 –– WWhheeeell aanndd HHaannddllee AAsssseemmbbllyy

48

DIMENSIONS & ASSEMBLY (cont.)

DIMENSIONS ASSEMBLY INSTRUCTIONS ­CP650D

PRODUCT FEATURES

FFiigguurree 55 –– HHeeaatteerr DDiimmeennssiioonnss

K

Front Handle

Hot Air Outlet

Lower Shell

Wheel (Solid Type)

Fuel Gauge

Fuel Cap

Operating Switch

Lamp

Thermostat Knob

Handle Supporter

Upper Shell

Handle Support

Fan Guard

Fuel Tank

Fuel Drain Bolt

Power Cord

FFiigguurree 66 –– MMooddeell CCPP665500DKK FFeeaattuurreess

49

DIMENSIONS & ASSEMBLY (cont.)

Wheels

(Solid Type)

FFiigguurree 77 –– CCoommppoonneenntt IIddeennttiiffiiccaattiioonn

Cap Nuts Bushing

ASSEMBLY FOR CP650DK

TOOLS REQUIRED
Adjustable wrench

SSEMBLING WHEEL & HANDLE

A

1. Slide threaded axle through the rear section of the
wheel support frame.

Threaded Axle

-

Front Handle

Handle Supporter

Handle

Frame

Wheel Support Frame

Threaded Axle

CAUTION

Risk of fire or explosion

Do not operate heater without support frame fully
assembled to tank.

2. Slide one axle bushing on to each side of the axle.
Slide one wheel on to each side of the axle. Attach one
cap nut on to each side of the threaded axle and
tighten well.

3. Loosen 4 screws on the front handle in order to
remove handle front.

4. Move the removed handle front to the handle on
the front side as Figure 8, and then tighten 4
screws after matching handle and handle front.

User Assembly

MOVE

Screw

Nut

Wheel

410

Cap Nut

Threaded Axle

Bushing

FFiigguurree 88–– WWhheeeell aanndd HHaannddllee AAsssseemmbbllyy

OPERATION

Electrical System Protection: This heater’s electrical system is

protected by a fuse mounted to the PCB Assembly that protects it and
other electrical components from damage.
If your heater fails to operate, check this fuse first and replace as
needed. Refer to Specification chart on page18.

F

lame-Out Sensor:

Utilizes a photocell to monitor the flame in
burn chamber during normal operation. It will cause the heater
to shut off should the burner flame extinguish.

Figure 9 – Overview of Heater Design

OVERVIEW OF HEATER DESIGN

Fuel System:
pulls fuel through the fuel line connected to the fuel tank and then
pushes fuel through a filter and a solenoid valve and out the burner
head nozzle.
This fuel is sprayed into the combustion chamber in a fine mist.

SureFire Ignition:
specially designed spark plug. The spark plug ignites the fuel
and air mixture.

he Air System:

T
air into and around the combustion chamber. Here, the air is
heated and then forced out the front of the heater.

This heater is equipped with a fuel pump (Gear) that

The electronic ignitor sends voltage to a

The heavy duty motor turns a fan that forces

THE SAFETY SYSTEM

Temperature Limit Control:
Temperature Limit Control designed to turn the heater off
should the internal temperature rise to an unsafe level. If this
device activates and turns your heater off, it may require
service.

Model Internal Shut-off Temp.

CP400DK
CP650DK

This heater is equipped with a

Reset Temp.

+/-10 Degrees

176OF/80OC

O

F/71OC

160

+/-10 Degrees

122OF/50OC

O

F/49OC

120

FUEL SELECTION

1. All models can use 7 different fuels: K1 Kerosene, #1 Fuel
Oil, #1, Diesel, #2 Fuel Oil, #2 Diesel, Jet A, JP-82.

2. K1 Kerosene is recommended for optimal combustion and
performance, and for less maintenance. K1 is also the
optimal fuel choice in extremely low temperatures of 15°F or
less, as its pour-point/"gel-point" varies depend-ing on the
refinery, but it is always far below the lowest temperatures
reached North America.

3. Jet A and JP-8 are also excellent choices for clean combus­tion, reduced maintenance, and temperatures below 15°F,
but they are rarely found outside of the aviation industry or
the military.

4. #1 Fuel Oil, #1 Diesel, #2 Fuel Oil, #2 Diesel are often
selected, as they are readily available. However, the uwer
must under-stand that Fuel Oil and Diesel are less refined,
and therefore the user should be aware of the following:

a. #1 Diesel and #1 Fuel Oil will have some degree of increased

smoke/soot during ignition, increased smell, and increased
regular cleaning/mainte-nance.

b. #2 Diesel and #2 Fuel Oil will, generally depending on the

regional refinery, burn dirtier than #1 fuels. The use of #2
fuels will result in a little more smoke/soot during ignition, a
greater increase in smell, and will require more regular
cleaning/-mainte-nance than #1 fuels.

c. At temperatures lower than 15°F, most diesel/fuel oil blends

will become more viscous (start to gel) as the diesel falls
below its pour point (starts to "gel"), and may pose a
challenge igniting the heater and with continu-ous operation
of the heater. There are troubleshooting steps for this
situation, but selecting K1 (or JP-8/Jet A) is recommended
when operating below 15°F. The colder the temperatures the
more likely you could problems you will experience diesel
gelling.

d. Diesel fuel gelling happens when the paraffin usually present

in diesel starts to solidify when the temperature drops. At
32°F, the wax in liquid form will crystallize and leave the fuel
clouded; this can start to have an effect on the fuel filter and
the nozzle. If the nozzle is getting coated the spray pattern
willnot be correct which can cause white smoke and
perfor-mance problems.

11

OPERATION (cont.)

KEROSENE SHOULD ONLY BE STORED IN A BLUE
CONTAINER THAT IS CLEARLYMARKED
“KEROSENE”. NEVER STORE KEROSENE IN A RED
CONTAINER.

Red containers are associated with gasoline.

NEVER store kerosene in the living space. Kerosene

should be stored in a well ventilated place outside the
living area.

NEVER use any fuel other than 1-K kerosene (#1/#2

diesel/fuel oil, JET A or JP-8 fuels are acceptable substi­tutes)

NEVER use fuel such as gasoline, benzene, alcohol, white

gas, camp stove fuel, paint thinners, or other oil
compounds in this heater. These are volatile fuels that can
cause an explosion or uncontrolled flames.

NEVER store kerosene in direct sunlight or near a source

of heat.

NEVER use kerosene that has been stored from one

season to the next. Kerosene deteriorates over time.

“OLD KEROSENE” WILL NOT BURN PROPERLY IN
THIS HEATER.

FUELING YOUR HEATER

Never fill the heater fuel tank in the living space: fill the
tank outdoors.

3. Plug power cord into three prong, grounded extension
cord. Extension cord must be at least six feet long.

- Extension Cord Wire Size Requirements:

6 to 100 feet long, use 14 AWG conductor.

-

- 101 to 200 feet long, use 12 AWG conductor.

- 201 to 300 feet long, use 10 AWG conductor.

- 301 to 400 feet long, use 8 AWG conductor.

- 401 to 500 feet long, use 6 AWG conductor.

Lamp

Thermostat
Control Knob

Figure 10 – Control Parts

4. Turn “THER

range: 40° -110°F, 9 steps) and push operating switch to “ON”
position. Power indicator lamp and room temperature display
will light and heater will start.

If heater does not start, the thermo -stat setting may be too low,
turn “THERMOSTAT CONTROL KNOB” to higher position to start
heater. If heater still does not start, turn power switch to “OFF”
and then to “ON” position (See Fi
start, see Troubleshooting Chart on page 20.

Room Temp.
Display

MOSTAT CONTROL KNOB” to desired setting (setting

Operating
Switch

gure 10). If heater still does not

Do not overfill your heater and be sure heater is level.

WARNING!

Fire and explosion hazard.

Never refill fuel tank when heater is operating or

-

still hot.

MPORTANT:

I

REGARDING FIRST IGNITION OF HEATER. The
first time you light the heater, it should be done
OUTDOORS. This allows the oils, etc., used in
manufacturing heater to be burned off outside.

TO START HEATER

Fill fuel tank with fuel.

1.

NOTE : Kerosene is recommended when the
temperature drops below 0˚F(- 18˚C) to
prevent ignition delay or failure.

2. Attach fuel cap.

N

OTE

: Room Temp. display indicates as following:

- When room temp. is less than 0° F: “Lo”.

- When room temp. is between 0° F and
99°F: Indicates room temperatures.

- When room temp. is more than 99° F: “HI”.

N

OTE:

The major electrical components of this heater are protected
by a circuit breaker mounted to the power switch. If your heater fails
to start, check this first and replace as necessary. You should also
check your power source to insure that proper voltage and
frequency are being supplied to the heater.

412

OPERATION (cont.)

TO STOP HE TER

A

CAUTION!

Never unplug heater while running.

-

Heater must go through cooling cycle. The cooling cycle cools the
combustion chamber. Damage to heater can occur if combustion
chamber is not cooled. Do not restart heater until cooling cycle is
complete.

1. Turn operating switch to “OFF”. This will cause heater flame to go
out.The motor will continue to run during the cooling cycle.
(Room Temp. Display will show “CC” during the cooling cycle).
This allows the fan to cool the combustion chamber. When the
cooling cycle(approx.1Min) is finished, the motor will stop. Do not
unplug heater until cooling cycle is finished.

2. Unplug power cord.

3. To temporarily stop heaters, 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

The cooling cycle cools the combustion chamber.

LONG-TERM STORAGE OF YOUR HEATER

FUEL TANK DRAIN

1. Remove drain bolt from bottom of fuel tank . See
Figure 12.

Seal

Fuel Drain Bolt

Figure 12 – Drain Plug Removal

2. Using a small amount of kerosene, swirl and rinse the
inside of the tank.

NEVER MIX WATER WITH KEROSENE, as it will cause rust ins
the tank. Pour the kerosene out, making sure that you remove it
all.

ide

CAUTION!

DO NOT restart heater until cooling cycle is finished.

-

1. Wait until cooling cycle is finished after stopping heater.

2. Repeat steps under TO START HEATER.

WARNING!

Shock hazard

Always cover outlet when not in use.

-

PIGGYBACK POWER CORD

(For CP400DK only)

• Always cover electrical outlet when not in use. See Figure 11.

• Don't plug and use an appliance with more than 5A current in this
outlet.

Cover

Electric Outlet

I

MPORTANT:
Do not store kerosene over summer for use during next heating
season. Using old fuel may damage heater.

Tighten drain bolt firmly into the tank, otherwise it will not
seal completely.

- Make sure storage place is free of dust and corrosive fumes.

- Store the heater in the original box with the original packing

material and keep USER'S MANUAL with heater.

Figure 11 –

Piggyback Power Cord

413

MAINTENANCE

USE ORIGINAL EQUIPMENT REPLACE MENT PARTS. Use of third-party or other alternate components will void warranty and
may cause unsafe operating conditions.

WARNING

Fire or explosion hazard.

Never service heater while it is plugged in or while hot!

-

UPPER SHELL REMOVAL

(For CP400DK only)

Screw

Upper Shell

FFiigguurree 1133 –– UUppppeerr SShheellll RReemmoovvaall

- Remove screws along each side and top of heater using medium
Phillips screwdriver.

(

For CP650DK only)

FAN BLADES AND AIR DEFLECTOR

CLEAN EVERY SEASON OR AS NEEDED.

Air Deflector

Figure 15 – Fan Blades and Air Deflectors

- Remove upper shell.

- Clean fan blades and air deflectors using soft cloth moistened with
kerosene or solvent.

- Dry fan blades and air deflectors thoroughly.

- Reinstall upper shell.

Fan Blade

Upper Shell

Cone-Outside

FFiigguurree 1144 –– UUppppeerr SShheellll RReemmoovvaall

- Remove screws of cone-outside and move up cone-outside after
that remove screws along each side and top of heater using
medium Phillips screwdriver.

414

MAINTENANCE (cont.)

Burner Head

Spark Plug

Nozzle

Plug

Figure 16 – Nozzle

Spark Plug
Wire

Fuel Line

NOZZLE

REMOVE DIRT IN NOZZLE AS NEEDED.

- Remove upper shell.

- Remove fuel line from solenoid valve using 1/4” wrench.

- Remove spark plug wire from spark plug.

- Remove spark plug from burner head using medium Phillips
screwdriver.

- Remove five screws using medium Phillips screwdriver and
remove burner head from combustion chamber.

- Carefully remove nozzle from burner head using 5/8” socket
wrench.

low compressed air through face of nozzle (this will remove any

- B
dirt).

- Inspect nozzle for damage. If damaged or clogged, replace
nozzle.

- Make sure plug is in place on burner head.

- Reinstall nozzle into burner head and tighten firmly (175-200
inch-pounds).

- Reinstall spark plug into burner head.

- Attach burner head to combustion chamber.

- Attach spark plug wire to spark plug.

- Attach fuel line to s

- Replace upper shell.

olenoid valve. Tighten firmly.

Burner Head

Figure 17 – Spark Plug

Spark Plug

Spark Plug
Wire

Gap

SPARK PLUG

CLEAN AND REGAP EVERY 600 HOURS OF OPERATION OR
REPLACE AS NEEDED.

- Remove upper shell.

- Remove spark plug wire from spark plug (See Figure 17).

- Remove spark plug from burner head using medium Phillips
screwdriver.

- Clean and regap spark plug electrodes to .140” (3.5 mm) gap.

- Reinstall spark plug into burner head.

- Attach spark plug wir

- Reinstall upper shell.

e to spark plug.

415

MAINTENANCE (cont.)

Photocell Bracket

Photocell

Connector

Photocell Lens

Figure 18 – Clean Photocell Lens

Install Photocell

1) Incorrect

2) Correct

PHOTOCELL

CLEAN PHOTOCELL ANNUALLY OR AS NEEDED.

- Remove upper shell (See page 14).

- Remove photocell from photocell bracket and disconnect
photocell from connector.

- Clean photocell lens with cotton swab.

- Inspect photocell for damage. If damaged, replace photocell.

Burner Head

Fan Guard

Screw

Flat Washer

Figure 20 – Remove Fan Guard ((CP400DK)

Fan Guard

Figure 21 – Remove Fan Guard ((CP650DK)

Solenoid
Valve

Fuel Line (A)

Figure 19 – Tighten Fuel Line

Fuel Line (B)

FUEL LINES

TIGHTEN FUEL LINES ANNUALLY OR
AS NEEDED.

- Remove upper shell (See page 14).

- Use 1/4” wrench and tighten fuel line (A) at solenoid valve and at
pump (See Figure 19).

- Remove fan guard (See Figure 20,21).

- Use 3/8” wrench and tighten fuel line (B) at pump and pump fuel

ilter assembly.

f

- Reinstall fan guard.

FUEL FILTER

CLEAN TWICE PER HEATING SEASON OR AS NEEDED.

Tank Fuel Filter

- Remove fan guard (See Figure 20,21).

- Disconnect fuel line (B) from pump and pump fuel filter
assembly with 3/8” wrench (See Figure 19).

- Remove two screws that fix bracket-filter to shell lower and
remove bracket-filter.

- Carefully pry fuel filter loose from fuel tank with flat end of
screwdriver.

- Wash fuel lines and fuel filter with clean kerosene.

- Replace fuel filter into fuel tank.

- Replace bracket-filter to shell lower.

- Connect fuel lines (B) to pump and pump fuel filter assembly.

- Reinstall fan guard.

416

MAINTENANCE (cont.)

Pump

Shell Lower

Pump Fuel Filter Assembly

Fuel Line(B)

Fuel Filter

FFiigguurree 2222 –– RReemmoovvee TTaannkk FFuueell FFiilltteerr

Shell Lower

Screw

Bracket-Filter

Model CP400DK

Screw

Bracket-Filter

Model CP650DK

Pump Fuel Filter

- Remove fan guard (See Figure 20,21).

- Unscrew filter bottom clockwise from filter top with adjustable
pliers.

- Remove fuel filter, gasket, magnet from filter bottom (See Figure

22).

- Wash filter bottom with clean kerosene.

- Wipe inside of filter bottom dry with clean cloth.

- Wash Fuel filter in clean kerosene.

- Remove dirt attached to magnet.

- Put clean magnet, fuel filter and gasket back in filter

bottom.

- Tighten firmly.

Filter Top

Gasket

Fuel Filter

Magnet

Filter
Bottom

Figure 23 – Fuel Pump Filter

PUMP PRESSURE ADJUSTMENT

- Remove pressure gauge plug from pump with 1/8” Allen wrench.

- Install accessory pressure gauge to pressure gauge port (See
Figure 23).

- Start heater (See Operation, Page 12). Allow motor to reach full
speed.

- Adjust pressure (Using small flat blade screwdriver). Turn pressure
adjustment screw clockwise to increase pressure. Turn screw
counterclockwise

- Set pump pressure at 110 PSI (for CP650DK).

- Set pump pressure at 125 PSI (for CP400DK).

- Stop heater (See Operation, Page 12).

- Remove pressure gauge. Replace pressure gauge plug in pressure
gauge port.

OTE:

N

Use only original equipment replacement parts. Use of
alternate or third party components will void warranty and may cause
an unsafe operating condition.

to decrease pressure.

Pressure Gauge Plug

Pressure Gauge

Figure 24 – Adjusting Pump Pressure

Pressure Gauge Port

Pressure Adjustment Screw

Pump

417