Hotsy 800 Series User manual

8.921-206.0
OPERATOR MANUAL
FOR TECHNICAL ASSISTANCE OR THE HOTSY DEALER NEAREST YOU,
VISIT OUR WEB SITE AT WWW.HOTSY.COM
800
MOBILE
OIL-FIRED SERIES
®
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I
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89212060-1
USEONLY KEROSENE, STOVE OIL OR
DIESELFUEL IN THIS TANK
CAUTION:RISKOF FIRE — DO NOTADD FUEL WHILE MACHINE
IS OPERATINGOR WHEN STILL HOT.
UNICAMENTEUSE KEROSENE, ACEITE
COMBUSTIBLEO DIESELEN ESTE TANQUE
PRECAUCIÓN:RIESGODE INCENDIO — NO AGREGUE COMBUS
TIBLECON LA MÁQUINA OPERANDO O AL ESTARCALIENTE.
UTILISERSEULEMENT DE KÉROSENE,
DEL'HUILE À POELE OU COMBUSTIBLE
DIÉSELDANS CE RÉSERVOIR
ATTENTION:RISQUEDE FEU.NE PAS AJOUTER DE CARBURANT
LORSQUEL'APPAREILEST EN OPÉRATION OU ENCORE CHAUD.
9.800-002.0
CAUTION
PRECAUCION / ATTENTION
COLDWATER INLET
INGRESODEL AGUA FRíA
ADMISSIOND’EAU FROID
9.800-020.0
EXPOSED PULLEYS AND
BELTS CAN CAUSE INJURY
KEEPCLEAR WHILE MACHINERY
ISOPERATING
POLEAS Y CORREAS EXPUESTAS
PUEDENCAUSAR DAÑ O
NOSE ACERQUE SI MÀQUINA ESTÁFUNCIONANDO
DESCOURRO IES OU POULIES EXPOSÉES
PEUVENTCAUSER DESBLESSURES
NEPAS S’APPROCHER LORSQUE L’APPAREILEST EN OPÉRATION
WARNING
PRECAUCIÓN/ AVERTISSEMENT
8.932-965.0

1.109-120.0 821 SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/228 GPH
● Pump Pressure At Pump Head: 2300 PSI
● Burner Type: Fuel Oil Fired, 343,000 BTU/Hr.
● Burner Fuel Pressure: 150 PSI
● Motor Hp: 6.2
● Machine Voltage: 208Vac/60Hz/1Ph
● Total Machine Amperage: 33 Amps
● Machine Weight: 582 Lbs.
● Shipping Weight: 632 Lbs.
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=51", Width=28", Height=52"
1.109-121.0 842 SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● Burner Type: Fuel Oil Fired, 343,000 BTU/Hr.
● Burner Fuel Pressure: 150 PSI
● Motor Hp: 5.0
● Machine Voltage: 208Vac/60Hz/3Ph
● Total Machine Amperage: 20 Amps
● Machine Weight: 572 Lbs.
● Shipping Weight: 622 Lbs.
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=51", Width=28", Height=52"
1.109-122.0 843 SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● Burner Type: Fuel Oil Fired, 343,000 BTU/Hr.
● Burner Fuel Pressure: 150 PSI
● Motor Hp: 5.0
● Machine Voltage: 230Vac/60Hz/1Ph
● Total Machine Amperage: 29 Amps
● Machine Weight: 572 Lbs.
● Shipping Weight: 622 Lbs.
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=51", Width=28", Height=52"
1.109-123.0 844 SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● Burner Type: Fuel Oil Fired, 343,000 BTU/Hr.
● Burner Fuel Pressure: 150 PSI
● Motor Hp: 5.0
● Machine Voltage: 230Vac/60Hz/3Ph
● Total Machine Amperage: 19 Amps
● Machine Weight: 572 Lbs.
● Shipping Weight: 622 Lbs.
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=51", Width=28", Height=52"
1.109-124.0 845 SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● Burner Type: Fuel Oil Fired, 343,000 BTU/Hr.
● Burner Fuel Pressure: 150 PSI
● Motor Hp: 5.0
● Machine Voltage: 460Vac/60Hz/3Ph
● Total Machine Amperage: 10 Amps
● Machine Weight: 641 Lbs.
● Shipping Weight: 691 Lbs.
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=51", Width=28", Height=52"
1.109-125.0 851 SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● Burner Type: Fuel Oil Fired, 343,000 BTU/Hr.
● Burner Fuel Pressure: 150 PSI
● Motor Hp: 8.2
● Machine Voltage: 208Vac/60Hz/1Ph
● Total Machine Amperage: 41 Amps
● Machine Weight: 625 Lbs.
● Shipping Weight: 675 Lbs.
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=51", Width=28", Height=52"

1.109-126.0 852 SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● Burner Type: Fuel Oil Fired, 343,000 BTU/Hr.
● Burner Fuel Pressure: 150 PSI
● Motor Hp: 7.5
● Machine Voltage: 208Vac/60Hz/3Ph
● Total Machine Amperage: 25 Amps
● Machine Weight: 615 Lbs.
● Shipping Weight: 665 Lbs.
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=51", Width=28", Height=52"
1.109-127.0 853 SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● Burner Type: Fuel Oil Fired, 343,000 BTU/Hr.
● Burner Fuel Pressure: 150 PSI
● Motor Hp: 7.5
● Machine Voltage: 230Vac/60Hz/1Ph
● Total Machine Amperage: 37 Amps
● Machine Weight: 615 Lbs.
● Shipping Weight: 665 Lbs.
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=51", Width=28", Height=52"
1.109-128.0 854 SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● Burner Type: Fuel Oil Fired, 343,000 BTU/Hr.
● Burner Fuel Pressure: 150 PSI
● Motor Hp: 7.5
● Machine Voltage: 230Vac/60Hz/3Ph
● Total Machine Amperage: 25 Amps
● Machine Weight: 615 Lbs.
● Shipping Weight: 665 Lbs.
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=52", Width=28", Height=52"
1.109-129.0 855 SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● Burner Type: Fuel Oil Fired, 343,000 BTU/Hr.
● Burner Fuel Pressure: 150 PSI
● Motor Hp: 7.5
● Machine Voltage: 460Vac/60Hz/3Ph
● Total Machine Amperage: 14 Amps
● Machine Weight: 615 Lbs.
● Shipping Weight: 665 Lbs.
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=51", Width=28", Height=52"
1.109-130.0 856 SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● Burner Type: Fuel Oil Fired, 343,000 BTU/Hr.
● Burner Fuel Pressure: 150 PSI
● Motor Hp: 8.2
● Machine Voltage: 575Vac/60Hz/3Ph
● Total Machine Amperage: 11 Amps
● Machine Weight: 630 Lbs.
● Shipping Weight: 680 Lbs.
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=51", Width=28", Height=52"
1.109-131.0 873 SPECIFICATIONS
● Pump Volume At Pump Head: 5.0 GPM/300 GPH
● Pump Pressure At Pump Head: 3000 PSI
● Burner Type: Fuel Oil Fired, 385,800 BTU/Hr.
● Burner Fuel Pressure: 160 PSI
● Motor Hp: 10
● Machine Voltage: 230Vac/60Hz/3Ph
● Total Machine Amperage: 42 Amps
● Machine Weight: TBD
● Shipping Weight: TBD
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=51", Width=28", Height=52"
1.109-132.0 874 SPECIFICATIONS
● Pump Volume At Pump Head: 5.0 GPM/300 GPH
● Pump Pressure At Pump Head: 3000 PSI
● Burner Type: Fuel Oil Fired, 385,800 BTU/Hr.
● Burner Fuel Pressure: 160 PSI
● Motor Hp: 10
● Machine Voltage: 230Vac/60Hz/3Ph
● Total Machine Amperage: 29 Amps
● Machine Weight: TBD
● Shipping Weight: TBD
● Exhaust Stack Size: 8"
● Machine Dimensions: Length=51", Width=28", Height=52"

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
CONTENTS
4
Model Number ______________________________
Serial Number ______________________________
Date of Purchase ___________________________
The model and serial numbers will be found on a decal attached
to the pressure washer.You should record both serial number and
date of purchase and keep in a safe place for future reference.
Introduction & Important Safety Information 5-7
Component Identification 8
Assembly Instructions 9-10
Installation Instructions 11-12
Operation Instructions 13-15
Detergents & Washing Techniques 16
Shut down & Storage Instructions 17
Maintenance 18
Troubleshooting 19-20
Warranty

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
5
PRESSURE WASHER OPERATOR MANUAL
INTRODUCTION & IMPORTANT SAFETY INFORMATION
Thank you for purchasing this Pressure Washer.
We reserve the right to make changes at any time
without incurring any obligation.
Owner/User Responsibility:
The owner and/or user must have an understanding of
the manufacturer’s operating instructions and warnings
before using this pressure washer.Warning information
should be emphasized and understood. If the operator
is not fluent in English, the manufacturer’s instructions
and warnings shall be read to and discussed with
the operator in the operator’s native language by the
purchaser/owner, making sure that the operator com-
prehends its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’ instructions.
The operator must know how to stop the machine
quickly and understand the operation of all controls.
Never permit anyone to operate the engine without
proper instructions.
SAVE THESE INSTRUCTIONS
This manual should be considered a permanent
part of the machine and should remain with it if
machine is resold.
When ordering parts, please specify model and
serial number. Use only identical replacement parts.
This machine is to be used only by trained operators.
IMPORTANT SAFETY
INFORMATION
READ OPERATOR’S
MANUAL THOROUGHLY
PRIOR TO USE.
WARNING: To reduce the risk of
injury, read operating instruc-
tions carefully before using.
1. Read the owner's manual
thoroughly. Failure to follow
instructions could cause mal-
function of the machine and
result in death, serious bodily
injury and/or property dam-
age.
2. Know how to stop the machine and bleed pressure
quickly. Be thoroughly familiar with the controls.
3. Stay alert — watch what you are doing.
4. All installations must comply with local codes.
Contact your electrician, plumber, utility company
or the selling distributor for specific details. If your
machine is rated 250 volts or less, single phase will
be provided with a ground fault circuit interrupter
(GFCI). If rated more than 250 volts, or more than
single phase this product should only be connected
to a power supply receptacle protected by a GFCI.
DANGER: Improper connection of the equipment-
grounding conductor can result in a risk of elec-
trocution. Check with a qualified electrician or
service personnel if you are in doubt as to whether
the outlet is properly grounded. Do not modify the
plug provided with the product - if it will not fit the
outlet, have a proper outlet installed by a qualified
electrician. Do not use any type of adaptor with
this product
WARNING
KEEP WATER
SPRAY AWAY FROM
ELECTRICAL WIRING.
WARNING: Keep wand, hose, and
water spray away from electric
wiring or fatal electric shock may
result.
5. To protect the operator from
electrical shock, the machine
must be electrically grounded.
It is the responsibility of the
owner to connect this machine
to a UL grounded receptacle of proper voltage and
amperage ratings. Do not spray water on or near
electrical components. Do not touch machine with
wet hands or while standing in water. Always dis-
connect power before servicing.
RISK OF EXPLOSION:
OPERATE ONLY WHERE
OPEN FLAME OR TORCH
IS PERMITTED
WARNING
WARNING: Flammable liquids
can create fumes which can ig-
nite, causing property damage
or severe injury.
WARNING: Risk of explosion —
Operate only where open flame
or torch is permitted.
6. In oil burning models, use only kerosene, No. 1
home heating fuel, or diesel. If diesel is used, add
a soot remover to every tankful.
RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING
MACHINE.
WARNING
WARNING:Risk of fire — Do not
add fuel when the product is
operating or still hot.
WARNING: Do not use gasoline
crankcase draining or oil con-
taining gasoline, solvents or
alcohol. Doing so will result in
fire and/or explosion.
7. Oil burning appliances shall be installed only in
locations where combustible dusts and flammable
gases or vapors are not present. Do not store or
use gasoline near this machine.
8. Do not allow acids, caustic or abrasive fluids to pass
through the pump.
9. Never run pump dry or leave spray gun closed
longer than 1-2 minutes.
10. Keep operating area clear of all persons.

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
OPERATOR MANUAL PRESSURE WASHER
6
RISK OF INJECTION
OR SEVERE INJURY
TO PERSONS. KEEP
CLEAR OF NOZZLE.
WARNING
WARNING:High pressure devel-
oped by these machines will
cause personal injury or equip-
ment damage. Keep clear of
nozzle. Use caution when oper-
ating. Do not direct discharge
stream at people, or severe in-
jury or death will result.
WARNING
PROTECT FROM
FREEZING
WARNING: Protect machine from
freezing.
15. To keep machine in best
operating conditions, it is
important you protect machine
from freezing.Failure to protect
machine from freezing
could cause malfunction of the
machine and result in death,
serious bodily injury, and/or property damage. Fol-
low storage instructions specified in this manual.
16. Inlet water must be clean fresh water and no hotter
then 90°F.
WARNING
RISK OF
ASPHYXIATION. USE
THIS PRODUCT ONLY
IN A WELL
VENTILATED AREA.
WARNING: Risk of asphyxiation.
Use this product only in a well
ventilated area.
17. Avoid installing machines in
small areas or near exhaust
fans. Adequate oxygen is
needed for combustion or
dangerous carbon monoxide
will result.
18. Manufacturer will not be liable for any changes
made to our standard machines or any components
not purchased from us.
19. The best insurance against an accident is precau-
tion and knowledge of the machine.
WARNING
RISK OF INJURY
FROM FALLS WHEN
USING LADDER.
WARNING: Be extremely careful
when using a ladder, scaffolding
or any other relatively unstable
location. The cleaning area
should have adequate slopes
and drainage to reduce the pos-
sibility of a fall due to slippery
surfaces.
20. Do not overreach or stand on unstable support.
Keep good footing and balance at all times.
21. Do not operate this machine when fatigued or under
the influence of alcohol, prescription medications,
or drugs.
IMPORTANT SAFETY INFORMATION
WARNING
USE PROTECTIVE
EYE WEAR
AND CLOTHING
WHEN OPERATING
THIS EQUIPMENT.
WARNING: High pressure spray
can cause paint chips or other
particles to become airborne
and fly at high speeds. To avoid
personal injury, eye, hand and
foot safety devices must be
worn.
11. Eye, hand, and foot protection
must be worn when using this
equipment.
WARNING
EAR PROTECTION
MUST BE WORN
WARNING:This machine exceeds
85 db appropriate ear protection
must be worn.
WARNING
Hot discharge fluid:
Do not touch or
direct discharge
stream at persons.
WARNING: Hot discharge fluid.
Do not touch or direct discharge
stream at persons.
WARNING: This machine pro-
duces hot water and must have
insulated components attached
to protect the operator.
WARNING
Risk Of Injury.
Hot Surfaces
Can Cause Burns
WARNING: Risk of injury. Hot
surfaces can cause burns. Use
only designated gripping areas
of spray gun and wand. Do not
place hands or feet on non-insu-
lated areas of the pressure
washer.
12. To reduce the risk of injury, close supervision is
necessary when a machine is used near children.
Do not allow children to operate the pressure
washer. This machine must be attended during
operation.
TRIGGER GUN KICKS
BACK - HOLD WITH
BOTH HANDS
WARNING
WARNING: Grip cleaning wand
securely with both hands before
starting. Failure to do this could
result in injury from a whipping
wand.
13. Never make adjustments
on machine while in opera-
tion.
14. Be certain all quick coupler fit-
tings are secured before using
pressure washer.

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
7
PRESSURE WASHER OPERATOR MANUAL
IMPORTANT SAFETY INFORMATION
Follow the maintenance instructions
specified in the manual.
WARNING:To prevent damage or injury.
Keep brake engaged during machine
operation and storage.
89212060-27
Brake

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
OPERATOR MANUAL PRESSURE WASHER
8
COMPONENT IDENTIFICATION
Pump — Develops high pressure by pumping water
volume through nozzle (Not shown).
Spray Gun — Controls the application of water and
detergent onto cleaning surface with trigger device.
Includes safety latch.
Detergent Metering Valve — Controls detergent
mixture.
Wand — Must be connected to the spray gun.
GFCI — Provided on all single phase machines. Trips
when there is current leakage.
Relief Valve — Ruptures when pressure exceeds
7000 psi.
High Pressure Hose — Connect one end to water
pump discharge nipple and the other end to spray gun.
Pressure Nozzle — Inserted into wand quick coupler
to develop pressure
Adjustable Thermostat — Prevents water tempera-
ture from exceeding high temperatures. Is not used to
maintain constant temperature setting.
Oil Burner Assembly— Converts fuel oil from a liquid
state into a combustible mixture.
Hose Reel Bracket — Mounts optional hose reel.
89212060-2
USEONLY KEROSENE, STOVE OIL OR
DIESELFUEL IN THIS TANK
CAUTION:RISKOF FIRE — DO NOTADD FUEL WHILE MACHINE
IS OPERATINGOR WHEN STILL HOT.
UNICAMENTEUSE KEROSENE, ACEITE
COMBUSTIBLEODIESEL ENESTE TANQUE
PRECAUCIÓN:RIESGODE INCENDIO — NO AGREGUE COMBUS
TIBLECON LA MÁQUINA OPERANDO O AL ESTARCALIENTE.
UTILISERSEULEMENT DE KÉROSENE,
DEL'HUILE À POELE OU COMBUSTIBLE
DIÉSELDANS CE RÉSERVOIR
ATTENTION:RISQUEDEFEU. NE PAS AJOUTER DE CARBURANT
LORSQUEL'APPAREILEST EN OPÉRATION OU ENCORE CHAUD.
9.800-002.0
CAUTION
PRECAUCION / ATTENTION
COLDWATER INLET
INGRESODEL AGUA FRíA
ADMISSIOND’EAU FROID
9.800-020.0
EXPOSED PULLEYS AND
BELTS CAN CAUSE INJURY
KEEPCLEAR WHILE MACHINERY
ISOPERATING
POLEAS Y CORREASEXPUESTAS
PUEDENCAUSAR DAÑ O
NOSE ACERQUE SI MÀQUINA ESTÁFUNCIONANDO
DESCOURROIES OU POULIES EXPOSÉES
PEUVENTCAUSER DES BLESSUR ES
NEPAS S’APPROCHER LORSQUE L’APPAREILEST EN OPÉRATION
WARNING
PRECAUCIÓN/ AVERTISSEMENT
8.932-965.0
TACH/HOUR
Burner
Exhaust
Vent
High
Pressure
Nozzle
High Pressure
Hose
Detergent Bucket
(not included)
Relief
Valve
Garden Hose
(not included)
Spray
Gun
Oil Burner
Assembly
GFCI
Wand
Nozzles
Thermostat
Detergent
Metering
Valve
Burner Switch
Pump Switch
Hose Reel
Bracket

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
9
PRESSURE WASHER OPERATOR MANUAL
89121060-11
ASSEMBLY INSTRUCTIONS
Unpacking
Unpack carefully.Wear safety glasses or goggles while un-
packing, assembling or operating pressure washer. If there
are missing components or hidden damage immediately
contact distributor or carrier concerning discrepancies.
1. Cut strapping band from pressure washer and pallet.
2. Remove pressure washer from pallet.
Parts Included
• Pressure Washer
• Pressure Hose
• Wand
•Trigger Gun
• Operating Instructions
Tools Required
• 10" Adjustable Crescent Wrenches (2 ea.)
• Blade Screwdriver
Pressure Hose
1. Use teflon tape on plumbing connections to prevent
leakage.
2. Install pressure hose on machine as shown.
Wand Components
1. Assemble wand components as shown. Connect
pressure hose to trigger gun.
NOTE:The nozzle is not to be installed at this time.
2. Make sure that all plumbing connections are tight.
Relief Valve
Pressure Hose
Quick Disconnect Plug Wand
Quick
Disconnect
Trigger Gun
Pressure Hose
89212060-28

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
OPERATOR MANUAL PRESSURE WASHER
10
89212060-7
89212060-10
Y
AS
FU
NCIONANDO
S
EXPOSÉES
S
BLESSURES
AP
PAREILEST EN OPÉRATION
89212060-7
89212060-6
89212060-5
89212060-4
COLD WATERINLET
INGRESO DEL AGUAFRíA
ADMISSION D’EAU FROID
9.800-020.0
89212060-3
ASSEMBLY INSTRUCTIONS
STEP 1: Attach a 5/8" water supply
hose to inlet connector. Minimum
flow should be 5 GPM depending on
model of machine. Do not exceed 65
psi incoming water pressure.
STEP 3: Attach variable pressure
control wand to spray gun using
teflon tape on threads to prevent
leakage.
STEP 7: Check oil level by using
supplied dip-stick. Use SAE 30W
non-detergent only.
STEP 2: Attach high pressure hose
to discharge nipple using quick
coupler. Lock coupler securely by
pulling back coupler collar, inserting
onto discharge nipple and pushing
collar forward until secure.
STEP 8: Fill fuel oil tank. Do not
confuse gasoline and fuel oil tanks.
Keep proper fuel in proper tank.
STEP 5: Before installing nozzle, turn
on water supply and run machine
allowing water to flush through the
system until clear. Pull the spring-
loaded collar of the wand coupler collar
back to insert your choice of pressure
nozzle. CAUTION: Never replace
nozzles without engaging the safety
latch on the spray gun trigger.
Garden
Hose
Water
Inlet
High
Pressure
Hose
Discharge
Nipple Trigger
Gun
Pressure
Nozzle
Dipstick
Collar Wand
Safety Latch
STEP 4: Attach the high pressure
hose to the spray gun using teflon
tape on hose threads.
High
Pressure
Hose
Spray Gun
STEP 6: Release the coupler collar
and push the nozzle until the collar
clicks. Pull the nozzle to make sure
it is seated properly.
Coupler
Collar
Pressure
Nozzle
Fuel Oil
Tank
Coupler
Collar
89212060-8

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
11
PRESSURE WASHER OPERATOR MANUAL
Venting
CAUTION - RISK OF ASPHYXIATION: Do not run
machine indoors or in an enclosed area without the
required venting, as exhaust fumes may be hazard-
ous to your health.
CAUTION: All venting must be in accordance with ap-
plicable federal and state laws, and local ordinances.
Consult local heating contractors.
IMPORTANT: A draft regulator shall be installed.
INSTALLER UNE HOTTE DE TIRAGE.
If the pressure washer is to be used in an enclosed area, a
flue must be installed to vent burner exhaust to the outside
atmosphere. Exhaust gases should not be vented into a
wall, a ceiling, or a concealed space of a building. Be sure
the flue is the same size as the burner exhaust vent on
the pressure washer. Poor draft will cause the pressure
washer to soot and not operate properly. When selecting
the location for installation, beware of poorly ventilated
locations or areas where exhaust fans may cause an
insufficient supply of oxygen available for the amount of
fuel being burned. If it is necessary to install the machine
in a poorly ventilated area, outside fresh air may have to
be piped to the burner and a fan installed to bring suf-
ficient air into the machine. Locate the pressure washer
so that the flue will be as straight as possible and protrude
through the roof at a proper height and location to provide
adequate draft. This oil fired pressure washer must have
a draft regulator installed in the flue (available from most
heating contractors). A draft regulator will permit proper
upward flow of exhaust flue gases.
Burner Air Adjustment:
The oil burner on this machine is preset for opera-
tion at altitudes below 1000 feet. If operated at higher
altitudes, it may be necessary to adjust the air band
setting. Adjust air band for a #1 or #2 smoke spot
on the Bacharach scale. If a smoky or eye-burning
exhaust is being emitted from the stack, two things
should be checked. First, check the fuel to be certain
that kerosene or No.1 home heating fuel is being used.
Next, check the air adjustment on the burner. An oily,
smoky fire indicates a lack of air and the air band
should be moved to allow the air to flow through the
burner. Sharp eye-burning fumes indicate too much air
flowing through the combustion chamber.The air band
should be readjusted to allow less air to flow through
the burner.
CAUTION: If white smoke appears from burner
exhaust vent during start-up or operation, discontinue
use and readjust air bands.
NOTE: If a flue is installed, have a professional ser-
viceman adjust your burner for a #1 or #2 smoke spot
on the Bacharach scale.
For additional burner component information, see
Burner Assembly Exploded View page. It is recom-
mended that the oil burner be serviced yearly or as
needed. Contact your local service center.
Hotsy Crossfire Burner Air Adjustment
To adjust, start machine and turn burner ON. Loosen
two locking screws found on the air band and close air
band until black smoke appears from burner exhaust
vent. Note air band position. Next, slowly open the air
band until white smoke just starts to appear. Turn air
band halfway back to the previously noted position.
Tighten locking screws.
Water Supply
Connect water supply hose to water inlet.The water faucet
and supply hose must be capable of providing a minimum
of 4.0 gallons per minute (GPM) and a maximum pres-
sure of 65 psi.
Electrical
WARNING:Make sure all switches and controls are in
the OFF position prior to connecting electrical supply.
WARNING: DO NOT stand in water while connecting
and disconnecting electrical supply.
WARNING:Always disconnect power before servicing
your pressure washer.
IMPORTANT: Consult local building codes for exact
electrical requirements. Licensed contractors may
be required.
IMPORTANT: This machine must be electrically
grounded.LA MACHINE DOIT ÊTRE MISE À LATERRE.
Grounding Instructions: This product must be electri-
cally grounded. If it should malfunction or break down,
grounding provides a path of least resistance for electric
current to reduce the risk of electric shock. This product
is equipped with a cord having an equipment ground-
ing conductor and a grounding plug. The plug must be
plugged into an appropriate outlet that is properly installed
and grounded in accordance with all local codes and
ordinances.
INSTALLATION INSTRUCTIONS
Reference Numbers
Air Band Locking Screws
Air Band

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
OPERATOR MANUAL PRESSURE WASHER
12
DANGER: Improper connection of the equipment
grounding conductor can result in a risk of electro-
cution. Check with a qualified electrician or service
personnel if you are in doubt as to whether the
outlet is properly grounded.
DANGER: Do not modify the plug provided with the
product - if it will not fit the outlet,have a proper outlet
installed by a qualified electrician. DO NOT use any
type of adaptor with this product.
Extension Cords: The models 980SS and 1410SS
should not be used with extension cords. All other models
must be used only with UL listed extension cords that are
rated for the voltage and amperage requirements of the
machine. In no case should more than one cord be used
and cord length should be kept to a minimum to reduce
the risk of severe electrical shock and/or damage to the
machine.
WARNING: To reduce the risk of electrocution, keep
all connections dry and off the ground. DO NOT touch
plug with wet hands.
INSTALLATION INSTRUCTIONS

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
13
PRESSURE WASHER OPERATOR MANUAL
OPERATION INSTRUCTIONS
Before Starting
1. Read all manuals provided with this pressure washer.
Become familiar with location and function of all
operating and safety controls.
DANGER: Improper wiring connections of the equip-
ment can result in a risk of electrocution. Check
with a qualified electrician or service personnel if
you are in doubt as to whether the outlet is properly
grounded.
WARNING: Check hoses, fittings, wand, trigger gun
and fuel connections daily for signs of wear, cracks
and looseness, and replace as required.
2. Connect water supply hose to the standard garden
hose connector. The water faucet and supply hose
must be capable of providing 5.0 GPM.
3. Fill oil burner fuel tank. Use kerosene, #1 grade home
heating oil, #1 or #2 diesel fuel.
IMPORTANT: Do not use gasoline, crankcase
drainings, used oil or oil containing gasoline or
solvents.
NE PAS UTILISER D’ESSENCE, DE PRODUITS DE
VIDANGE NI D’HUILE CONTENANT DE L’ESSENCE
OU DES SOLVENTS.
4. Check pump oil level.
5. If detergents are to be used, only use detergents
intended for pressure washers. Follow instructions
on the detergent container.
IMPORTANT: Before installing pressure nozzle on
initial start-up, turn on the water supply, start the
pump by pressing the pump ON switch, and hold the
trigger gun open until water appears at the end of the
wand. Allow water to run from the end of the wand
until clear to prevent the nozzle from clogging.
IMPORTANT: If the pressure washer has not been
used for an extended period of time, remove the
pressure nozzle from the end of the wand and turn
on water supply, and start the pump by pressing
the pump ON switch. Hold the trigger gun open and
allow water to run from the end of the wand until clear.
6. Install the pressure nozzle on end of wand, refer to
figure below.
IMPORTANT:The trigger gun provided with this pres-
sure washer is equipped with a manual trigger lock
to prevent accidental operation of the trigger gun,
refer to figure above.The trigger lock should be used
whenever the trigger gun is not in use.
To Start
WARNING: Risk of injection or severe injury - Keep
clear of nozzle - DO NOT direct discharge stream at
persons - This machine is to be used only by quali-
fied operators.
AVERTISSEMENT: RISQUE D’INJECTION ET DE
BLESSURES GRAVES. SE TENIR À L’ÉCART DU JET.
NE PAS DIRIGER LE JET DE SORTIEVERS D’AUTRES
PERSONNES. CONFIER L’UTILISATION DE CE MATÉ-
RIEL À UN OPÉRATEUR QUALIFIÉ.
WARNING:Wear eye, ear, hand, foot and skin protec-
tion at all times while operating pressure washer.
WARNING: Before changing pressure nozzle, engage
manual trigger gun lock.
IMPORTANT: The water must be turned on before
starting. Running the pump dry will cause damage
and void warranty.
IMPORTANT: Do not allow the machine to run with
trigger of the trigger gun released for more than
10 minutes at any one time or damage to pump may
occur.
1. If equipped with a GFCI, test the GFCI using the
reset and test procedures provided on the GFCI
device. The GFCI must be tested with every use.
2. Turn ON water supply.
3. Hold wand firmly, release trigger of trigger gun and
turn pump switch ON. Squeeze trigger of trigger gun
and allow air to purge from system.
4. If HOT water is desired, adjust the thermostat to
the proper temperature and turn burner switch ON.
The burner will light immediately with a small puff of
smoke. You may need to initially adjust your burner
for peak performance. See Oil Burner section under
Installation. If smoke continues, refer to the Trouble-
shooting Guide in this manual. When the trigger of
the trigger gun is released or when the thermostat
temperature setting is reached, the burner will auto-
matically turn off.
IMPORTANT: If ignition or flame failure is experi-
enced, discontinue use of pressure washer at once.
Turn off burner and shut off fuel supply. Have cause of
failure corrected by an authorized service technician
before use of pressure washer is continued.
Manual Trigger Lock
Pressure Nozzle
89212060-29

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
OPERATOR MANUAL PRESSURE WASHER
14
OPERATION INSTRUCTIONS
To Clean
1. Insert detergent inlet line into container of mixed
detergent. Open detergent ON/OFF valve. The
detergent will be pulled automatically into the sys-
tem. Allow detergent to reach end of wand before
proceeding to step 3.
2. Select pressure nozzle with spray pattern that match-
es your cleaning needs. Engage manual trigger lock
and install selected nozzle.
3. Wash from the bottom to the top, using side to side
motions.This washes away heavy dirt and allows the
detergent to soak as you work toward the top.
4. Do not wash at a 90° angle to the work (straight at
it). This will allow water to splash back at you and
reduces your cleaning power. Wash at a 30° to 60°
angle to the work. This will allow the water to splash
away from you and the water will wash the dirt away
faster and easier.
5. Use the width of the spray pattern to wash in a wide
path. Overlap spray paths for complete coverage.
Wash from side to side, using slow, steady motions.
6. The nozzle should be 12" to 24" from work, closer
for tough areas. Be careful on painted or delicate
surfaces, the pressure may damage surface if nozzle
is too close.
7. Small parts should be washed in a basket so the pres-
sure does not push them away. Larger, light weight
parts should be clamped down so the pressure does
not push them away.
8. Close the detergent ON/OFF valve to permit rinse.
Always rinse with cold water after using detergents.
Rinse from the top to the bottom to prevent detergent
from dripping onto a rinsed area. For the best results,
contact your Hotsy dealer to help you select the best
detergent for your application.

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
15
PRESSURE WASHER OPERATOR MANUAL
89212060-16
TACH/HOUR
89212060-13
TACH/HOUR
89212060-15
OPERATON INSTRUCTIONS
STEP 1: Turn on the water. Check
for water leaks, tighten as needed.
STEP 2: Plug unit into power source
and activate pump switch
STEP 4: For hot water, turn the
thermostat knob to 210° then push
the burner switch to ON when a
steady stream of water flows out of
the spray gun. Burner will now light
automatically. NOTE: Do not start
machine with burner switch on.
STEP 3: With the spray nozzle
pointed away from you or anybody
else, press the trigger on the spray
gun to obtain pressurized cold water
spray.
STEP 5: For steam, open the steam
valve counterclockwise. This low-
ers the pressure and raises the
temperature.
STEP 6: The four color-coded quick connect nozzles
provide a wide array of spray widths from 0° to 40° and
are easily accessible when placed in the convenient
rubber nozzle holder, which is provided on the front of
the machine. NOTE: For a more gentle rinse, select
the white 40° nozzle. To scour the surface, select the
yellow 15° or red 0° nozzle.
Nozzles
Burner
Switch
Pump
Switch
Detergent
Valve
Thermostat
Adjust Knob
89212060-12 89212060-14
TACH/HOUR
89212060-17

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
OPERATOR MANUAL PRESSURE WASHER
16
WARNING: Some detergents
may be harmful if inhaled or
ingested, causing severe nau-
sea, fainting or poisoning. The
harmful elements may cause
property damage or severe
injury.
STEP 1: Use detergent designed
specifically for pressure wash-
ers. Household detergents could
damage the pump. Prepare deter-
gent solution as required by the
manufacturer. Fill a container with
pressure washer detergent. Place
the filter end of detergent suction
tube into the detergent container.
STEP 2: With the engine run-
ning, pull trigger to operate
machine. Liquid detergent
is drawn into the machine
and mixed with water. Apply
detergent to work area. Do
not allow detergent to dry on
surface.
IMPORTANT: You must flush the detergent after
each use by placing the suction tube into a bucket
of clean water, open detergent valves then run the
pressure washer for 1-2 minutes.
THERMAL PUMP
PROTECTION
If you run your pressure washer for 3-5 minutes without
pressing the trigger on the spray gun, circulating water
in the pump can reach high temperatures. When the
water reaches this temperature, the pump protector
engages and cools the pump by discharging the warm
water onto the ground. This thermal device prevents
internal damage to the pump.
CLEANING TIPS
Pre-rinse cleaning surface with fresh water. Place de-
tergent suction tube directly into cleaning solution and
apply to surface at low pressure (for best results, limit
your work area to sections approximately 6 feet square
and always apply detergent from bottom to top). Allow
detergent to remain on surface 1-3 minutes. Do not
allow detergent to dry on surface. If surface appears
to be drying, simply wet down surface with fresh water.
If needed, use brush to remove stubborn dirt. Rinse at
high pressure from top to bottom in an even sweeping
motion keeping the spray nozzle approximately 1 foot
from cleaning surface. Use overlapping strokes as you
clean and rinse any surface. For best surface cleaning
action spray at a slight angle.
Recommendations:
 • Before cleaning any surface, an inconspicuous
area should be cleaned to test spray pattern and
distance for maximum cleaning results.
 • If painted surfaces are peeling or chipping,
use extreme caution as pressure washer may
remove the loose paint from the surface.
 • Keepthespraynozzleasafedistancefromthe
surface you plan to clean. High pressure wash
a small area, then check the surface for dam-
age. If no damage is found, continue to pressure
washing.
CAUTION - Never use:
 • Bleach,chlorineproductsandothercorrosive
chemicals
 • Liquidscontainingsolvents(i.e.,paintthinner,
gasoline, oils)
 • Tri-sodiumphosphateproducts
 • Ammoniaproducts
 • Acid-basedproducts
These chemicals will harm the machine and will
damage the surface being cleaned.
RINSING
It will take a few seconds for the detergent to clear.
Apply safety latch to spray gun and close detergent
valve. Select and install the desired high pressure
nozzle.
WARNING
DETERGENTS & GENERAL WASHING TECHNIQUES
89212060-18
89212060-20
Detergent Tube
89212060-19
USEONLY KEROSENE, STOVE OIL OR
DIESELFUEL IN THIS TANK
CAUTION:RISKOF FIRE — DO NOTADD FUEL WHILE MACHINE
ISOPERATING ORWHEN STILL HOT.
UNICAMENTEUSEKEROSENE, ACEITE
COMBUSTIBLEODIESEL EN ESTE TANQUE
PRECAUCIÓN:RIESGODE INCENDIO — NO AGREGUECOMBUS
TIBLECONLA MÁQUINA OPERANDO O AL ESTAR CALIENTE.
UTILISERSEULEMENT DE KÉROSENE,
DEL'HUILE À POELE OU COMBUSTIBLE
DIÉSELDANS CE RÉSERVOIR
ATTENTION:RISQUEDE FEU.NE PAS AJOUTER DE CARBURANT
LORSQUEL'APPAREILEST EN OPÉRATIONOU ENCORE CHAUD.
9.800-002.0
CAUTION
PRECAUCION/ ATTENTION
EXPOSEDPULLEYS AND
BELTSCAN CAUSE INJURY
KEEPCLEARWHILE MACHINERY
ISOPERATING
POLEASY CORREASEXPUESTAS
PUEDENCAUSAR DAÑO
NOSEACERQUE SI MÀQUINA ESTÁ FUNCIONANDO
DESCOURROIES OU POULIESEXPOSÉES
PEUVENTCAUSER DES BLESSURES
NEPASS’APPROCHER LORSQUE L’APPAREILEST EN OPÉRATION
WARNING
PRECAUCIÓN/ AVERTISSEMENT
8.932-965.0

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
17
PRESSURE WASHER OPERATOR MANUAL
SHUT DOWN AND CLEAN-UP
CAUTION: Always store your pressure washer in a
location where the temperature will not fall below
32°F (0°C).The pump in this machine is susceptible
to permanent damage if frozen. FREEZE DAMAGE
IS NOT COVERED BY WARRANTY.
1. Stop the pressure washer, squeeze spray gun
trigger to release pressure.
2. Detach water supply hose and high pressure hose.
3. Turn on the machine for a few seconds, until re-
maining water exits. Turn engine off immediately.
4. Drain the fuel and oil from the engine.
5. Do not allow high pressure hose to become kinked.
6. Store the machine and accessories in a room which
does not reach freezing temperatures.
CAUTION: Failure to follow the above directions will
result in damage to your pressure washer.
When the pressure washer is not being operated or is
being stored for more than one month, follow these
instructions:
1. Replenish engine oil to upper level.
2. Drain diesel from fuel tank, fuel line, fuel valve and
carburetor.
3. Cover the pressure washer and store in a clean, dry
place that is well ventilated away from open flame
or sparks.
After Extended Storage
CAUTION: Prior to restarting, thaw out any possible
ice from pressure washer hoses,spray gun or wand.
DANGER: Do not store flammable liquids (gasoline,
fuel oil, petroleum, solvents, etc.) near pressure
washer, or in non-ventilated areas.
IMPORTANT: Machine must be stored indoors.
1. Protect from freezing by storing in a heated area,
or by flushing the system with antifreeze (use an
automotive engine antifreeze or windshield washer
solvent to antifreeze). To flush the system fill the float
tank with antifreeze and remove pressure nozzle
from wand. Start the machine and allow it to run until
antifreeze runs from the end of the wand. Place wand
into float tank and circulate the solution through sys-
tem for several minutes. Open and close the trigger
gun several times to circulate antifreeze through the
unloader valve system. Also draw antifreeze through
the detergent inlet line to antifreeze the detergent
system. For added protection after antifreezing, dis-
connect the pressure hose from machine and remove
the coil drain plug. After coil has drained, replace
pressure hose and coil drain plug. If the pressure
washer is not to be used for an extended length of
time, it is recommended that the system be flushed
with antifreeze for rust protection.
STORAGE
STEP 2: Turn thermostat adjust knob
off and continue spraying, allowing
the water to cool to below 100°.
STEP 3: Turn pump switch off.
STEP 1: Remove detergent suction
tube from container and insert into
one gallon of fresh water. Open
detergent valve, pull trigger on
spray gun and siphon water for one
minute.
STEP 5: Squeeze trigger on spray
gun to relieve remaining pressure.
STEP 4: Turn off water supply.
89212060-21 89212060-22
Thermostat
Adjust Knob
89212060-23
Pump
Switch
89212060-24 89212060-25

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
OPERATOR MANUAL PRESSURE WASHER
18
MAINTENANCE
WARNING: Unauthorized machine modification or
use of non-approved replacement parts may cause
personal injury and/or property damage and will void
the manufacturer warranty.
IMPORTANT: Machine must be stored indoors.
Pump
Use Hotsy Pump Oil P/N 315068 or equivalent 30W
non-detergent oil for pump crankcase. Crankcase must be
filled to the full mark on the dipstick or to center of sight
glass window found on the rear of the pump. During the
break-in-period, make sure the oil is changed after the
first 25 hours of operation. After that, replace oil every 3
months or 300 hours of operation, whichever comes first.
Proper Pump Care:
• DONOT pump acids.
• DONOT allow pump to run dry.
• Winterize if storing in freezing temperatures, refer
to Storage for details.
• Use a water softener on the water system if known
to be high in mineral content.
• Use only high quality detergents and follow
manu-facturer’s mix recommendations.
• Flush the system with clear water immediately
after using detergent solutions.
• Clean filter screen on detergent inlet line
periodically.
• Flush the pressure washer system with antifreeze
if storing for an extended period of time, refer to
Storage for details.
Pump Motor
On a yearly basis, oil pump motor per instructions on
motor nameplate.
NOTE: Some motors may be equipped with perma-
nently lubricated bearings and will not require ad-
ditional lubrication.
Relief Valve
WARNING: The relief valve on this pressure washer
has been factory set and sealed and is a field nonad-
justable part.Tampering with the factory setting may
cause personal injury and/or property damage, and
will void the manufacturer warranty.
Unloader Valve
WARNING: The unloader valve on this pressure
washer has been factory set and sealed and is a
field nonadjustable part. Tampering with the factory
setting may cause personal injury and/or property
damage, and will void the manufacturer warranty. For
replacement refer to Pump Assembly page.
Burner Fuel Filter
Drain any water which has accumulated in fuel filter
and clean or replace filter element as needed.
Heating Coil
Coil Descaling: In hard water areas, scale buildup within
the heating coil will occur. Scale deposits will decrease
the water temperature rise and may eventually clog the
heating coil. Contact your local service center when des-
caling is needed.
Coil Desooting: Poor grades of fuel oil or inadequate
combustion air will cause heavy soot buildup on the
outside surface of the heating coil. These deposits will
insulate the coil. This will restrict the air flow through the
coil, further aggravating the soot buildup. Contact your
local service center when desooting is needed.
Brake
Every 50 hours inspect brake components for proper
operation. Repair or replace if needed.
89212060-26
Sight Glass
(on Rear of Pump)
Oil Fill Dipstick

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
19
PRESSURE WASHER OPERATOR MANUAL
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
PRESSURE WILL
NOT RUN
Pump switch in OFF position Place switch in ON position.
Power supply disconnected Connect power supply.
Fuse blown or circuit breaker
tripped in electrical supply line
Replace fuse or reset circuit breaker.
Use only fuses of adequate capacity.
Motor circuit overload tripped Reset pump switch.
PRESSURE RUNS
BUT WON'T SPRAY
Trigger of trigger gun released Squeeze trigger.
Water supply not turned on Open water supply valve.
Clogged pressure nozzle Clean pressure nozzle opening.
LOW SPRAY
PRESSURE
AT NOZZLE
Inadequate water supply Fully open faucet. Check for kinked or
damaged hose. Use 5/8 inch minimum hose.
Check for debris clogging inlet screen.
Partially clogged or damaged
pressure nozzle
Clean or replace.
Air being drawn through
detergent inlet line
Refill detergent container.
Ensure that pick-up screen is fully immersed.
UNEVEN SPRAY
PATTERN
Partially clogged or damaged
nozzle
Clean or replace.
PRESSURE
WASHER
WILL NOT
PRODUCE
HOT WATER
Burner switch in OFF position Place switch in ON position.
Inadequate fuel supply Refill fuel tank. Use only recommended fuels.
Refer to Before Starting under Operation.
Pump switch turned off Pump must be running before burner will light.
Inadequate water supply Fully open faucet. Check for kinked or damaged
hose. Use 5/8 inch minimum hose. Check for de-
bris clogging inlet screen.
Trigger of trigger gun released Squeeze trigger. Water must be spraying for
burner to light.
POOR OR NO
DETERGENT
FLOW
Inadequate detergent supply Refill detergent container. Ensure that pick-up
screen is full immersed. Open metering valve.
Detergent screen or hose
clogged
Clean. Always start with a clean detergent
container.
Clogged detergent valve Clean.

HOTSY 800 OIL FIRED • 8.921-206.0 • Rev. 3/13
OPERATOR MANUAL PRESSURE WASHER
20
TROUBLESHOOTING
800 OIL-FIRED SERIES OPTIONAL EQUIPMENT
924889 8" Draft Regulator
When ordering from your dealer, please provide the following:
Model Number: ____________________Release:____________
Machine Serial Number: ________________________________
Component Part Number: _______________________________
Description: __________________________________________
IMPORTANT
If the pressure washer demonstrates other symptoms or the corrective actions
listed do not correct the problem, contact the local authorized Hotsy Service
Center. The Hotsy Service Center can be identified by visiting www.hotsy.com.
PROBLEM POSSIBLE CAUSE SOLUTION
POOR
CLEANING
Improper detergent
concentration or mixing
Mix detergent per manufacturer's instructions.
Ensure that powdered detergents are fully
dissolved.
Wrong detergent for
the application
Select appropriate detergent.
Rinsing with hot water A final rinse with cold water will reduce water
spotting.