Hotsy 900 GAS-FIRED SERIES User manual

9.803-325.0-B6-15
OPERATING INSTRUCTIONS
900/1400
GAS-FIRED SERIES
OPERATOR’S MANUAL
®
c
L
I
S
T
E
D
®
98033250-1
GROUND
GROUND
EXPOSEDPULLEYS AND
BELTSC AN CAUSE INJURY
KEEPCLEAR WHILE MACHINERY
ISOPERATING
POLEASY CORREAS EXPUESTAS
PUEDENCAUSAR DAÑO
NOSE ACERQUE SI MÀQUINA ESTÁ FUNCIONANDO
DESCOURR OIES OU POULIES EXPOSÉES
PEUVENTCAUSER DES BLESSURES
NEPASS’APPROCHER LORSQUE L’APPAREIL EST EN OPÉRATION
WARNING
PRECAUCIÓN/ AVERTISSEMENT
8.932-965.0
EXPOSED PULLEYSAND
BELTSCAN CAUSE I NJURY
KEEPCLEAR WHILE MACHINERY
ISOPERATING
POLEASY CO RREASEXPUESTAS
PUEDENCAUSAR DAÑO
NOSE ACERQUE SI MÀQUINA ESTÁFUNCIONANDO
DESCOURROIES OU POULIES EXPOSÉES
PEUVENTC AUSER DESBLESSURES
NEPASS’APPROCHER LORSQUE L’APPAREIL EST EN OPÉRATION
WARNING
PRECAUCIÓN/ AVERTISSEMENT
8.932-965.0
MODED’EMPLOI
LIRELEMANUEL DE L ’OPERATEUR AVANT UTILISATION UNE
MAUVAISEUTILISATION PEUT CAUSER DES BLESSURES OU
DOMMAGESMATÉRIELS.
INSTRUCCIONESDE OPERACION
LEAELMANU AL DE OPER ACIÓN ANTES DE USARSE. LA OPERACIÓN
INADECUADAPUEDE OCASIONA R LESIONES PERSONALES O DAÑOS
A LAS PROPIEDADES.
OPERATINGINSTRUCTIONS
READOPERATING MANUAL BEFORE OPERA TING MACHINE .
IMPROPEROPERATION MAY RESULTIN PERSONAL INJURY OR
PROPERTYDAMAGE.
WARNIN
PRECAUCION/ AVERTISSEMENT
RISQUEDE FEU OU D’EXPLOSION
RIESGODE INCENDIO O EXPLOSIÓN
RISKOF FIRE OR EXPLOSION
• Machine needs to be installed on non-combustible
with minimum clearanceof18”.
Beforelighting, smell all around the appliance area for
gas.Besure to smell next to the becausesomegas
isheavierthan air and will settle on the If you smell
gas,immediatelycallyour gas supplier for instructions.If
gassuppliercan not bereached, call the department.
Donot use tools to push in or turnthe gas control knob.
Ifknob will not push in or turn byhand, call a
servicetechnician.Using forceorattempting repairmay
resultin a or explosion.
Shouldpilotoutage occur, turn control knob to OFF
position.Wait5 minutes before relighting.
Donot use this equipment if any part has been under
water.Immediatelycall aservice technician to inspect
forrepair.
Elequipo debe ser instalado sobre un piso resistente
alincendio, con un espacio libre de 18” minimo.
Antesde encender, olfateealrededor del aparato para
detectargas. Esté seguro de revisar cerca del piso,
porqueciertos gases son más pesados que el aire.Si
olfateagas,avise inmediatamente a su proveedor de
gas.Alnolocalizar el proveedor, llame a los bomberos.
Nouse herramientas paramover el control del gas.
Sila manija no se puedeoperar con la mano, llame a
untécnico capacitado. Forzar o intentar reparar este
controlpuede resultar en un incendio o explosión.
Enel caso de apagarse el piloto, apague y espere 5
minutosantes de encender.
Noutilice este equipo en el caso que hubiera estado
sumergido enagua parcial o totalmente un compo-
nente.Consulte con un técnico de servicio.
Nepas installer ce machine aux endroits où il y a des
combustibles(mêmelesplancher) dedansun demi-mètre.
Avantl’allumage, autourde l’appareil pour des
senteursde gaz. lesodeurs près du plancher car
certainsgaz sont plus lourds que l’air et s’accumulent sur
leplancher. Si vous détectez une odeur de gaz, appelez
immédiatementvotre fournisseur de gaz. Si celui-ci ne
peutêtre joint, appeler le département des incendies.
Nepasutiliser d’outils pour pousser ou tourner la soupape
decontrôledugaz. Si la soupape ne peut être enfoncéeou
tournéeàlamain,appeler un technicien Forcerou
essayerde réparer peut causer un feu ou une explosion.
Silepilote s’éteint, tour nerla soupape de contrôle en
positionOFF.Attendre 5 minutesavant de réallumer.
Nepasutilisercetéquipement siunepartie aété immergée
dansl’eau. Appeler un technicien pour inspecter celui-ci.
8.900-990.0
CHAUD!

3
CONTENTS
HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
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 8-10
Component Identification 11
Assembly Instructions 12
Installation Instructions 13-16
Operation Instructions 17-18
Shutdown Instructions 19
Storage 19
Maintenance 20
Troubleshooting 21-25
Warranty
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
•  Donottrytolightanyappliance.
•  Donottouchanyelectricalswitch;donotuseanyphone
in your building.
•  Immediatelycallyourgassupplierfromaneighbor's
phone.Followthegassupplier'sinstructions.
•  Ifyoucannotreachyourgassupplier,callthere
department.
Installation and service must be performed by a qualified
installer,serviceagencyorthegassupplier.

1.109-691.0 921N SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/228 GPH
● Pump Pressure At Pump Head: 2300 PSI
● BurnerType:NaturalGasFired,364,835BTU/Hr.
● Motor Hp: 6.2
● Machine Voltage: 208VAC/60Hz/1Ph
● Total Machine Amperage: 28 Amps
● Machine Weight: 560 Lbs.
● Shipping Weight: 620 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-692.0 926N SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/228 GPH
● Pump Pressure At Pump Head: 2000 PSI
● BurnerType:NaturalGasFired,364,835BTU/Hr.
● Motor Hp: 5
● Machine Voltage: 575VAC/60Hz/3Ph
● Total Machine Amperage: 7 Amps
● Machine Weight: 555 Lbs.
● Shipping Weight: 610 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-695.0 943P SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● BurnerType:LPGasFired,360,997BTU/Hr.
● Motor Hp: 5.0
● Machine Voltage: 230VAC/60Hz/1Ph
● Total Machine Amperage: 25 Amps
● Machine Weight: 550 Lbs.
● Shipping Weight: 610 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-696.0 943N SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● BurnerType:NaturalGasFired,364,835BTU/Hr.
● Motor Hp: 5.0
● Machine Voltage: 230VAC/60Hz/1Ph
● Total Machine Amperage: 25 Amps
● Machine Weight: 550 Lbs.
● Shipping Weight: 610 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-697.0 944P SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● BurnerType:LPGasFired,360,997BTU/Hr.
● Motor Hp: 5.0
● Machine Voltage: 230VAC/60Hz/3Ph
● Total Machine Amperage: 16 Amps
● Machine Weight: 545 Lbs.
● Shipping Weight: 605 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-698.0 944N SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● BurnerType:NGGasFired,364,835BTU/Hr.
● Motor Hp: 5.0
● Machine Voltage: 230VAC/60Hz/3Ph
● Total Machine Amperage: 16 Amps
● Machine Weight: 545 Lbs.
● Shipping Weight: 605 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-693.0 942P SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● BurnerType:LPGasFired,360,997BTU/Hr.
● Motor Hp: 5.0
● Machine Voltage: 230VAC/60Hz/3Ph
● Total Machine Amperage: 18 Amps
● Machine Weight: 545 Lbs.
● Shipping Weight: 605 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-694.0 942N SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● BurnerType:NaturalGasFired,364,835BTU/Hr.
● Motor Hp: 5.0
● Machine Voltage: 208VAC/60Hz/3Ph
● Total Machine Amperage: 18 Amps
● Machine Weight: 545 Lbs.
● Shipping Weight: 605 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"

1.109-700.0 945N SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● BurnerType:NaturalGasFired,364,835BTU/Hr.
● Motor Hp: 5.0
● Machine Voltage: 460VAC/60Hz/3Ph
● Total Machine Amperage: 8 Amps
● Machine Weight: 545 Lbs.
● Shipping Weight: 605 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-699.0 945P SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● BurnerType:LPGasFired,360,997BTU/Hr.
● Motor Hp: 5.0
● Machine Voltage: 460VAC/60Hz/3Ph
● Total Machine Amperage: 8 Amps
● Machine Weight: 545 Lbs.
● Shipping Weight: 605 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-948.0 921P SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2300 PSI
● BurnerType:LPGasFired,360,997BTU/Hr.
● Motor Hp: 6.2
● Machine Voltage: 208VAC/60Hz/1Ph
● Total Machine Amperage: 28 Amps
● Machine Weight: 560 Lbs.
● Shipping Weight: 620 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-949.0 926P SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 2000 PSI
● BurnerType:NaturalGasFired,360,997BTU/Hr.
● Motor Hp: 5.0
● Machine Voltage: 575VAC/60Hz/3Ph
● Total Machine Amperage: 7 Amps
● Machine Weight: 555 Lbs.
● Shipping Weight: 610 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"

1.109-705.0 1453N SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:NaturalGasFired,364,835BTU/Hr.
● Motor Hp: 7.5
● Machine Voltage: 230VAC/60Hz/1Ph
● Total Machine Amperage: 34 Amps
● Machine Weight: 610 Lbs.
● Shipping Weight: 670 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-706.0 1454P SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:LPGasFired,360,997BTU/Hr.
● Motor Hp: 7.5
● Machine Voltage: 230VAC/60Hz/3Ph
● Total Machine Amperage: 25 Amps
● Machine Weight: 605 Lbs.
● Shipping Weight: 665 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-702.0 1452P SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:LPGasFired,360,997BTU/Hr.
● Motor Hp: 7.5
● Machine Voltage: 208VAC/60Hz/3Ph
● Total Machine Amperage: 24 Amps
● Machine Weight: 605 Lbs.
● Shipping Weight: 665 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-707.0 1454N SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:NaturalGasFired,364,835BTU/Hr.
● Motor Hp: 7.5
● Machine Voltage: 230VAC/60Hz/3Ph
● Total Machine Amperage: 24 Amps
● Machine Weight: 605 Lbs.
● Shipping Weight: 665 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-703.0 1452N SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:NaturalGasFired,364,835BTU/Hr.
● Motor Hp: 7.5
● Machine Voltage: 208VAC/60Hz/3Ph
● Total Machine Amperage: 24 Amps
● Machine Weight: 605 Lbs.
● Shipping Weight: 655 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-708.0 1455P SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:LPGasFired,360,997BTU/Hr.
● Motor Hp: 7.5
● Machine Voltage: 460VAC/60Hz/3Ph
● Total Machine Amperage: 12 Amps
● Machine Weight: 605 Lbs.
● Shipping Weight: 665 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-709.0 1455N SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:NaturalGasFired,364,835BTU/Hr.
● Motor Hp: 7.5
● Machine Voltage: 460VAC/60Hz/3Ph
● Total Machine Amperage: 12 Amps
● Machine Weight: 605 Lbs.
● Shipping Weight: 665 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-701.0 1451N SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:NaturalGasFired,364,835BTU/Hr.
● Motor Hp: 8.2
● Machine Voltage: 208VAC/60Hz/1Ph
● Total Machine Amperage: 36.5 Amps
● Machine Weight: 615 Lbs.
● Shipping Weight: 675 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-710.0 1456N SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:NaturalGasFired,364,835BTU/Hr.
● Motor Hp: 8.2
● Machine Voltage: 575VAC/60Hz/3Ph
● Total Machine Amperage: 10 Amps
● Machine Weight: 615 Lbs.
● Shipping Weight: 675 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-704.0 1453P SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:LPGasFired,360,997BTU/Hr.
● Motor Hp: 7.5
● Machine Voltage: 230VAC/60Hz/1Ph
● Total Machine Amperage: 34 Amps
● Machine Weight: 610 Lbs.
● Shipping Weight: 670 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"

1.109-713.0 1473N SPECIFICATIONS
● Pump Volume At Pump Head: 5 GPM/300 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:NaturalGasFired,390,025BTU/Hr.
● Motor Hp: 10 HP
● Machine Voltage: 230VAC/60Hz/1Ph
● Total Machine Amperage: 42 Amps
● Machine Weight: 617 Lbs.
● Shipping Weight: 677 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-714.0 1474N SPECIFICATIONS
● Pump Volume At Pump Head: 5 GPM/300 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:LPGasFired,390,025BTU/Hr.
● Motor Hp: 10 HP
● Machine Voltage: 230VAC/60Hz/3Ph
● Total Machine Amperage: 29 Amps
● Machine Weight: 620 Lbs.
● Shipping Weight: 680 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-950.0 1451P SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:LPGasFired,360,997BTU/Hr.
● Motor Hp: 8.2 HP
● Machine Voltage: 208VAC/60Hz/1Ph
● Total Machine Amperage: 36.5 Amps
● Machine Weight: 615 Lbs.
● Shipping Weight: 675 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-925.0 1475P SPECIFICATIONS
● Pump Volume At Pump Head: 5.0 GPM/300 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:LPGasFired,360,997BTU/Hr.
● Motor Hp: 10 HP
● Machine Voltage: 208VAC/60Hz/3Ph
● Total Machine Amperage: *** Amps
● Machine Weight: *** Lbs.
● Shipping Weight: *** Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-711.0 1473P SPECIFICATIONS
● Pump Volume At Pump Head: 5 GPM/300 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:LPGasFired,378,617BTU/Hr.
● Motor Hp: 10 HP
● Machine Voltage: 230VAC/60Hz/1Ph
● Total Machine Amperage: 42 Amps
● Machine Weight: 617 Lbs.
● Shipping Weight: 677 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-712.0 1474P SPECIFICATIONS
● Pump Volume At Pump Head: 5 GPM/300 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:NaturalGasFired,378,617BTU/Hr.
● Motor Hp: 10 HP
● Machine Voltage: 230VAC/60Hz/3Ph
● Total Machine Amperage: 29 Amps
● Machine Weight: 620 Lbs.
● Shipping Weight: 680 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-951.0 1456P SPECIFICATIONS
● Pump Volume At Pump Head: 4.0 GPM/234 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:LPGasFired,360,997BTU/Hr.
● Motor Hp: 8.2 HP
● Machine Voltage: 575VAC/60Hz/1Ph
● Total Machine Amperage: 10 Amps
● Machine Weight: 615 Lbs.
● Shipping Weight: 675 Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"
1.109-953.0 1475N SPECIFICATIONS
● Pump Volume At Pump Head: 5.0 GPM/300 GPH
● Pump Pressure At Pump Head: 3000 PSI
● BurnerType:LPGasFired,378,617BTU/Hr.
● Motor Hp: 10 HP
● Machine Voltage: 208VAC/60Hz/3Ph
● Total Machine Amperage: *** Amps
● Machine Weight: *** Lbs.
● Shipping Weight: *** Lbs.
● Exhaust Stack Size: 8"
● MachineDimensions:Length=47.5",Width=21",
Height=51"

HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
OPERATOR’S MANUAL PRESSURE WASHER
8
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 understand-
ing 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uentinEnglish,themanufac-
turer’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 comprehends 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
WARNING: If you do not follow these instructions
exactly, a fire or explosion may result, causing
property damage, personal injury or loss of life.
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 and warnings
could cause malfunction of
the machine and result in
death,serious bodily injury
and/or property damage.
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. Use only your hand to push in or turn the gas
control knob. Never use a tool. If the knob will not
pushinorturnbyhand,don'ttrytorepairit;call
a qualified service technician.
READ OPERATOR’S
MANUAL THOROUGHLY
PRIOR TO USE.
5. All installations must comply with local codes.
Contactyourelectrician,plumber,utilitycompany
or the selling distributor for specific details.
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.
WARNING: Keep wand, hose,
and water spray away from
electric wiring or fatal electric
shock may result.
6. To protect the operator from
electricalshock,themachine
must be electrically ground-
ed. It is the responsibility
of the owner to connect this
machine to a 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 disconnect power
before servicing.
RISK OF EXPLOSION:
IF GAS SMELL PRESENT
TURN OFF SUPPLY
WARNING
WARNING: Flammable liquids
can create fumes which can
ignite, causing property dam-
age or severe injury.
WARNING: Risk of explosion —
Operate only where open flame
or torch is permitted. Do not
spray flammable liquids.
RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING
MACHINE.
WARNING
WARNING: Risk of fire — Do not
change LP tanks when the
product is operating or still hot.
WARNING: Use vapor fuel only.
7. Gas 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.
WARNING: In the event of a pilot outage, wait
at least five minutes to clear out any gas before
relighting.
8. Keep operating area clear of all persons.
WARNING
KEEP WATER
SPRAY AWAY FROM
ELECTRICAL WIRING.

HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
9
PRESSURE WASHER OPERATOR’S MANUAL
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.
 9. Eye,hand,and footprotec-
tion must be worn when
using this equipment.
WARNING
EAR PROTECTION
MUST BE WORN
WARNING: This machine ex-
ceeds 85 db appropriate ear
protection must be worn.
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-in-
sulated areas of the pressure
washer.
10. Toreduceriskofinjury,closesupervisionisneces-
sary when a machine is used near children. Do not
allow children to operate 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 be-
fore starting. Failure to do this
could result in injury from a
whipping wand.
11. Nevermakeadjustmentson
machine while in operation.
12. Move spray gun trigger lever
into locked position before
inserting the high pressure nozzle into the quick
coupler. Be certain all quick coupler fittings are
secured before using pressure washer.
RISK OF INJECTION
OR SEVERE INJURY
TO PERSONS. KEEP
CLEAR OF NOZZLE.
WARNING
WARNING: High pressure de-
veloped by these machines will
cause personal injury or equip-
ment damage. Keep clear of
nozzle. Use caution when op-
erating. Do not direct discharge
stream at people, or severe
injury or death will result.
WARNING
PROTECT FROM
FREEZING
WARNING: Protect machine
from freezing.
13. 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.
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.
14. Avoid installing machines in
small areas or near exhaust
fans. Adequate oxygen is
needed for combustion or
dangerous carbon monoxide
will result.
15. Manufacturer will not be liable for any changes
made to our standard machines or any compo-
nents not purchased from us.
16. 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, scaffold-
ing or any other relatively un-
stable location. The cleaning
area should have adequate
slopes and drainage to reduce
the possibility of a fall due to
slippery surfaces.
17. Do not overreach or stand on unstable support.
Keep good footing and balance at all times.
18. Do not operate this machine when fatigued or
undertheinuenceofalcohol,prescriptionmedi-
cations,ordrugs.
19. Follow the maintenance instructions specified in
the manual.
WARNING: Use vapor fuel only.
20. The LP models are designed to run on vapor pro-
pane fuel. Do not use liquid fuel. Have a qualified
serviceman install and service your equipment.
21. Never expose a spark or flame where there may
be unburned gas present.

HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
OPERATOR’S MANUAL PRESSURE WASHER
10
IMPORTANT SAFETY INFORMATION
22. Install this machine about 2 feet from wall to
provide adequate ventilation and servicing space.
This equipment incorporates parts such as snap
switches or similar parts that tend to produce arcs
orsparks.Therefore,whenlocatedinagarage,
it should be in a room or enclosure provided for
the purpose or should be installed 18" (457mm)
or more above the floor.
WARNING: To reduce the risk of electric shock,
disconnect all electrical connections and shut-off
gas valve before servicing.
23. Install this machine on non combustible flooring.
24. Donotallowacids,causticorabrasiveuidsto
pass through the pump.
25. Never run pump dry or leave spray gun closed
longer than 3 minutes.
WARNING: If connection is made to potable water
supply, a back flow device must be provided.
26. Exhaustgasesshouldnotbeventedintoawall,a
ceiling or a concealed space of a building. A draft
diverter must be installed to prevent down draft
and to allow cooling of exhaust temperatures.
Down draft diverters shall be installed in the vents
and located at a distance from the pressure wash-
er stack to achieve maximum draft of 36" minimum.
Exhaust gases that exceed
470°F (243°C) are not suitable for
connection to Type B gas vents.
Example of Down Draft Diverter for
Gas Fired Machines
Follow the maintenance instructions
specified in the manual.
98033250-4

HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
11
PRESSURE WASHER OPERATOR’S MANUAL
COMPONENT IDENTIFICATION
Pump — Develops high pressure by pumping water
volume through nozzle.
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.
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.
SafetyTrigger Lever — Prevents accidental triggering
of spray gun while inserting a high pressure nozzle.
98033250-2
GROUND
GROUND
EXPOSED PULLEYS AND
BELTS CAN CAUSE INJURY
KEEPCLEAR WHILE MACHINERY
ISOPERATING
POLEASYC ORREASEXPUESTAS
PUEDEN CAUSARDAÑO
NOSE ACERQUE SI MÀQUINA ESTÁ FUNCIONANDO
DESCOURROIES OUPOULIES EXPOSÉES
PEUVENTCAUSER DES BLESSURES
NEPAS S’APPROCHER LORSQUE L’APPAREILEST EN OPÉRATION
WARNING
PRECAUCIÓN/ AVERTISSEMENT
8.932-965.0
EXPOSED PULLEYS AND
BELTSC AN CAUSE INJURY
KEEPCLEAR WHILE MACHINERY
ISOPERATING
POLEAS Y CORREAS EXPUESTAS
PUEDEN CAUSAR DAÑO
NOSE ACERQUE SI MÀQUINA ESTÁ FUNCIONANDO
DESCOU RROIESOUPOULIES EXPOSÉES
PEUVENTCAUS ER DES BLESSURES
NEPAS S’APPROCHER LORSQUE L’APPAREILEST EN OPÉRATION
WARNING
PRECAUCIÓN/ AVERTISSEMENT
8.932-965.0
MODED’EMPLOI
LIRELE MANUEL DE L’OPERATEUR AVANT UTILISATION UNE
MAUVAISEUTILISATION PEUT CAUSERDES BLESSURES OU
DOMMAGESMATÉRIELS.
INSTRUCCIONESDE OPERACION
LEAEL MANUAL DE OPER ACIÓN ANTES DE USARSE. LA OPERACIÓN
INADECUADAPUEDE OC ASIONARLESIONES PERSONALES O DAÑOS
A LASPROPIEDADES .
OPERATINGINSTRUCTIONS
READOPERATING MANUALBEFORE OPERA TING MACHINE.
IMPROPEROPERATION MAY RESULT IN PERSONAL INJURY OR
PROPERTYDAMAGE.
WARNIN
PRECAUCION/ AVERTISSEMENT
RISQUEDE FEU OU D’EXPLOSION
RIESGODE INCENDIO O EXPLOSIÓN
RISKOF FIRE OR EXPLOSION
• Machine needs to b e installedonnon-combustible
with minimum clearance of 18”.
Before lighting, smell all around the appliance area for
gas.Besureto smell next to the because somegas
isheavier than air and will settle on the If you smell
gas,immediatelycallyour gas supplierfor instructions.If
gassuppliercan notbereached, call the department.
Do not use tools to push in or turnthe gas control knob.
Ifknob will not push in or turnbyhand, call a
servicetechnician. Using force or attemptingrepairmay
resultin a or explosion.
Should pilotoutage occur,turn control knobto OFF
position.Wait 5 minutes before relighting.
Do not use this equipment if any parthas been under
water.Immediatelycallaservice technician to inspect
forrepair.
El equipo debe ser instalado sobre un piso resistente
alincendio, con un espacio libre de 18” minimo.
Antes de encender,olfatee alrededor del aparato para
detectar gas.Esté seguro de revisar cerca del piso,
porqueciertos gases son más pesados que el aire.Si
olfateagas,avise inmediatamente a su proveedor de
gas.Alno localizar el proveedor,llamea los bomberos.
No use herramientaspara mover el control del gas.
Sila manija no se puede operar con la mano, llame a
untécnico capacitado. Forzar o intentar reparar este
controlpuede resultar en un incendio o explosión.
En el caso de apagarse el piloto, apague y espere 5
minutosantes de encender.
No utilice este equipo en el caso que hubiera estado
sumergido en agua parcial o totalmenteun compo-
nente.Consulte con un técnico de servicio.
Ne pas installer ce machine aux endroits où il y ades
combustibles(mêmelesplancher) dedans un demi-mètre.
Avant l’allumage, autourdel’appareil pour des
senteursde gaz. lesodeursprès du plancher car
certainsgaz sont plus lourds que l’air et s’accumulent sur
leplancher. Si vous détectez une odeur de gaz, appelez
immédiatement votre fournisseur de gaz. Si celui-ci ne
peutêtre joint, appeler le département des incendies.
Nepas utiliser d’outilspour pousser ou tournerlasoupape
decontrôledugaz. Si la soupape nepeutêtreenfoncée ou
tournéeàlamain,appeleruntechnicienForcer ou
essayerde réparer peut causer un feu ou une explosion.
Sile pilote s’éteint,tournerlasoupape de contrôle en
positionOFF.Attendre 5 minutes avant de réallumer.
Nepasutiliser cetéquipement siune partieaété immergée
dansl’eau. Appeler un technicien pour inspecter celui-ci.
8.900-990.0
CHAUD!
GROUND
GROUND
EXPOSED PULLEYS AND
BELTS CAN CAUSE INJURY
KEEPCLEAR WHILE MACHINERY
ISOPERATING
POLEASY COR REASEXPUESTAS
PUEDEN CAUSAR DAÑO
NOSE ACERQUE SI MÀQUINA ESTÁ FUNCIONANDO
DESCOURROIES OUPO ULIES EXPOSÉES
PEUVENTCAUSER DES BLESS URES
NEPAS S’APPROCHER LORSQUE L’APPAREILEST EN OPÉRATION
WARNING
PRECAUCIÓN/ AVERTISSEMENT
8.932-965.0
EXPOSED PULLEYS AND
BELTS CAN CAUSE INJURY
KEEPCLEAR WHILE MACHINERY
ISOPERATING
POLEASYCORREAS EXPUESTAS
PUEDENC AUSAR DAÑO
NOSE ACERQUE SI MÀQUINA ESTÁFUNCIONANDO
DESCOURROI ESOUPOULIES E XPOSÉES
PEUVENTCAUSER DES BLESSURES
NEPAS S’APPROCHER LORSQUE L’APPAREILEST EN OPÉRATION
WARNING
PRECAUCIÓN/ AVERTISSEMENT
8.932-965.0
MODED’EMPLOI
LIRELE MANUEL DE L’OPERATEUR AVANT UTILISATION UNE
MAUVAISEUTILISATION PEUT CAUSERDES BLESSURES OU
DOMMAGESMATÉRIELS.
INSTRUCCIONESDE OPERACION
LEAEL MANUAL DE OPER ACIÓN ANTES DE USARSE. LA OPERA CIÓN
INADECUADAPUEDE OC ASIONARLESIONES PERSONALES O DAÑOS
A LASPROPIEDADES .
OPERATINGINSTRUCTIONS
READOPERATING MANUALB EFOREOPERATINGMACH INE.
IMPROPEROPERATION MAY RESULTIN PERSONAL INJURY OR
PROPERTYDAMAGE.
WARNIN
PRECAUCION/ AVERTISSEMENT
RISQUEDE FEU OU D’EXPLOSION
RIESGODE INCENDI OOEXPLOSIÓN
RISKOF FIREOR EXPLOSION
• Machine n eeds to be installed on non-combustible
with minimum clearance of 18”.
Before lighting, smell allaround the appliance area for
gas.Besure to smell nexttothe becausesomegas
isheavier than air and will settle on theIf you smell
gas,immediatelycall yourgas supplier for instructions. If
gassuppliercan not bereached,call the department.
Do not use tools to push in or turnthe gas control knob.
Ifknob will not push in or turn byhand, call a
servicetechnician. Using forceor attemptingrepair may
resultina or explosion.
Should pilot outage occur, turncontrol knobto OFF
position.Wait 5minutesbefore relighting.
Do not use this equipment if any part has been under
water.Immediatelycall aservice technician to inspect
forrepair.
El equipo debe ser instalado sobre un piso resistente
alincendio,con un espacio libre de 18” minimo.
Antes de encender,olfateealrededor del aparatopara
detectar gas. Esté seguro de revisar cerca del piso,
porqueciertos gases son más pesados que el aire. Si
olfateagas,aviseinmediatamente a su proveedor de
gas.Alno localizar el proveedor, llame a los bomberos.
No use herramientas para mover el control del gas.
Sila manija nose puede operar con la mano, llame a
untécnico capacitado.Forzar o intentar reparar este
controlpuede resultar en un incendio o explosión.
En el caso de apagarse el piloto,apague y espere 5
minutosantes de encender.
No utilice este equipo en el caso que hubiera estado
sumergidoen agua parcial o totalmente un compo-
nente.Consulte con un técnico de servicio.
Ne pas installer ce machine aux endroits où il y a des
combustibles(mêmeles plancher) dedans un demi-mètre.
Avant l’allumage,autour de l’appareil pour des
senteursde gaz. lesodeursprès du plancher car
certainsgaz sont plus lourds que l’air et s’accumulent sur
leplancher.Si vous détectez une odeur de gaz, appelez
immédiatement votre fournisseur de gaz. Si celui-ci ne
peutêtre joint, appeler le département des incendies.
Nepas utiliser d’outils pour pousserou tournerla soupape
decontrôledugaz.Si la soupape ne peutêtre enfoncéeou
tournéeàlamain,appeler untechnicienForcerou
essayerde réparer peut causer un feu ou une explosion.
Silepilote s’éteint,tourner la soupapede contrôle en
positionOFF
.Attendre5 minutes avant de réallumer.
Nepasutiliser cetéquipement si une partieaété immergée
dansl’eau. Appeler un technicien pour inspecter celui-ci.
8.900-990.0
CHAUD!
High Pressure
Hose
Inlet Power
Junction Box
Burner
Exhaust Vent
Thermostat
Pump Switch
Wand Burner
Switch
Garden Hose
(not included)
Detergent
Metering
Valve
Nozzles
Detergent Bucket
(not included)
Spray Gun
High Pressure
Nozzle
Safety Trigger
Lever
Relief
Valve

HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
OPERATOR’S MANUAL PRESSURE WASHER
12
98033250-5
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
• Parts Box Containing:
■Pressure Nozzles (3 ea.)
■Trigger Gun
• Operating Instructions and Parts Manual
Tools Required
• 10"AdjustableCrescentWrenches(2ea.)
• Blade Screwdriver
Pressure Hose, Wand and Wand Holder
1. Useteontapeonplumbingconnectionstoprevent
leakage.
2. Install pressure hose on machine as shown.
3. Assemble wand components as shown.Connect
pressure hose to trigger gun.
NOTE: The nozzle is not to be installed at this time.
4. Make sure that all plumbing connections are tight.
Pressure Hose
Relief Valve
98033250-6
Wand
Pressure Hose
Trigger Gun
Quick Disconnect Plug
Quick
Disconnect

HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
13
PRESSURE WASHER OPERATOR’S MANUAL
INSTALLATION INSTRUCTIONS
Getting Started:
IMPORTANT: Proper installation will assure satisfac-
toryperformance,longerservicelifeandlowermain-
tenance costs.
Location:
The location should protect machine from damaging en-
vironmentalconditions,suchaswind,rainandfreezing.
1. The machine should be run on a level surface
where it is not readily influenced by outside sources
suchasstrongwinds,freezingtemperatures,rain,
etc. The machine should be located considering
accessibility for the replacing of components and
therellingofdetergents,adjustmentsandmain-
tenance. Normal precautions should be taken by
the operator of the machine to prevent excess
moisture from reaching the machine.
2. It is recommended that a partition be made be-
tween the wash area and machine to prevent direct
spray from the spray gun from coming in contact
with the machine. Excess moisture reaching the
power unit or electrical controls will reduce the
machine’s life and may cause electrical shorts.
 3. During installation of the machine, beware of
poorly ventilated locations or areas where exhaust
fans may cause an insufficient supply of oxygen.
Sufficient combustion can only be obtained when
there is a sufficient supply of oxygen available for
the amount of fuel being burned. If it is necessary
to install a machine in a poorly ventilated area,
outside fresh air may have to be piped to the burner
and a fan installed to bring the air into the area.
4. Do not locate near any combustible material. Keep
all flammable material at least 20 feet away.
Allow enough space for servicing the machine.
Local code will require certain distances from floor
and walls. (Two feet away should be adequate).
WARNING: Avoid small areas or near exhaust fans.
Gas Codes:
Confer with local gas company and with proper mu-
nicipal officials regarding any specific code or regula-
tions governing the installation. The installation must
conform to local codes (U.S.,ANSI Z223.1/NFPA54
NationalFuelGasCode;Canada,CAN1-B149Instal-
lation Code).
Electrical:
The machine, when installed, must be electrically
grounded in accordance to local codes. Check for
properpowersupplyusingavoltmeter;checkthese-
rial plate for the correct requirements.
Gas Piping:
This machine shall be rigidly connected to the gas pip-
ing outlet and equipped with external manual shut-off
valvesadjacenttosuchmachine.Allgaspipingshallbe
approvedandinstalledinaccordancewiththeUniform
Mechanical Code.
Installagasunioninthegaslineadjacenttoandup-
stream from the control manifold and downstream from
the manual main shut-off valve. A 1/8" NPT plugged
tapping accessible for test gauge connection shall be
installed immediately upstream of the gas supply con-
nection for the purpose of determining the gas supply
pressuretotheburner,andtopreventdamagetogas
valve.
If a manual gas shut off valve is not in the gas supply
line within six feet of the machine and in an accessible
location,oneshallbeinstalled.
Figure 1: Union Location
Union Connection
The following pipe sizes are just recommendations.
Always consult a local plumber and venting contrac-
tor for local codes and regulations during installation.
Pipe Sizing Chart for Natural Gas
The following chart is based on gas pressure in the
range0-0.5psi,specicgravityof0.6andpressure
loss of 0.5" W.C. Numbers are for straight schedule
40pipe;ttingsfurtherreducecapacity.Forexample,
in1"size,anelbowisequivalenttoabout2.6feetof
pipe and a tee is equivalent to about 5.2 feet of pipe.
Maximum capacity of pipe in cubic feet/hr of natural gas
(Multiply values by 1000 to get nominal BTU/hr capacity.
98033250-10
Manual Shut-Off Valve
(Dealer Supplied)
Gas Valve
Union
Burner

HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
OPERATOR’S MANUAL PRESSURE WASHER
14
LP-Gas (Liquid petroleum gas or
propane)
LP-gas is gas compressed into liquid form for easy
transportation and storage. It is also known as propane
or bottle gas. (Propane tanks are not supplied with this
equipment.)
LP-gasisammable,isalwayscontainedunderpres-
sureandtheliquidcanfreezeskin.Therefore,inthe
interestofsafety,itisimportanttounderstandthebasic
facts about LP-gas and LP-gas containers.
Federal DOT (Department of Transportation) regulations
require periodic inspections and re-qualifications of
cylinders.DONOTUSEdamagedorrustedcontainers.
DO NOT store LP-gas containers indoors or in en-
closed areas. Do not expose LP-gas container to heat.
Always store with service valve closed and plugged
as required.
CAUTION: Use LP-gas containers in proper position.
Most LP-gas pressure washer heaters are designed
tooperateonLP-gasvaporonly.Therefore,allLP-gas
containers designed for vapor service must be trans-
ported,installedandusedintheproperposition.Donot
transport,installoruseaverticalcylinderinahorizontal
or upside down position. Proper care must be taken to
position a horizontal container in the correct position
for vapor withdrawal. Liquid LP-gas could enter the
system designed for vapor only, possibly creating a
hazardous condition.
Always use a POL plug installed on a POL valve or a
dust cap on an ACME/Type 1 valve when transport-
ing or storing disconnected containers (full or empty).
Check for leaks after connecting. Apply approved leak
INSTALLATION INSTRUCTIONS
detectorsolutiontoconnection,turnoffallburnersand
pilots and open service valve. Leaks will be detected
bythegrowthofbubbles.Ifbubblesgrow,tightenor
repair the connection as needed. Repeat leak test until
problem is corrected.
Check all tank and the line connections periodically
tobesuretheyaretight.Whentestingforleaks,use
approved leak detector solution — not matches.
Improved Regulation: The second stage regulator
receives a relatively uniform pressure from the first
stage regulator. This helps the second stage regulator
to maintain appliance pressure at a nearly constant
11" W.C.
Filling the LP-Gas Container
Only qualified persons should fill your LP-gas
containers.
CAUTION: Overfilling is hazardous!
DO NOT allow your LP-gas container to be overfilled.
Stop filling when liquid appears at the fixed level gauge.
Bleed off excess propane in a safe area. Most LP-gas
containers are equipped with a fixed liquid level gauge
which contacts the liquid level at 80% of container ca-
pacity,allowing20%forexpansion.LP-gascontainers
not equipped with a fixed liquid level gauge can only
be filled by weight.
Incoldclimates,inordertokeepvaporizationofLP-gas
atthehighestlevel,keepthefuellevelsabove50%.
Combustion and Ventilation Air
Properly sized vents are vital for the safe and efficient
operation of a pressure washer installed in a confined
space. When combustion and ventilation air are sup-
pliedfrominsidethebuilding,eachopeningmusthave
anareaofonesquareinchforevery1,000BTUHinput.
Whencombustionairissuppliedfromtheoutside,each
opening must have an area of one square inch for every
2,000BTUHforhorizontalductsandonesquareinch
forevery4,000BTUHforverticalducts(refertoNFPA
54). See Figure 3.
The purpose of venting a gas pressure washer is to
completely remove all products of combustion and to
vent gasses to the outside air without condensation in
the vent or spillage at the draft hood (except in cases
of downdraft or poor stack conditions). To assure cor-
rectventing,useastrong,gas-tightinsulatedpipewith
a cross section equal to that of the flue collar or draft
hood outlet and of sufficient vertical height.
Duringventinstallation,avoidsharpturns,longhori-
zontal runs and improper pitches. Maintain proper sup-
portofventconnectorsandjoints,observeclearances
from all combustibles and top the vent outlet with an
approved cap.
Length of
Pipe (ft.)
Iron Pipe Size
3/4" 1" 1 -1/4" 1- 1/2" 2"
10 360 680 1400 2100 3950
20 250 465 950 1460 2750
30 200 375 770 1180 2200
40 170 320 660 990 1900
50 151 285 580 900 1680
60 138 260 530 810 1520
70 125 240 490 750 1400
80 118 220 460 690 1300
90 110 205 430 650 1220
100 103 195 400 620 1150
150 84 160 325 500 950
200 72 135 280 430 800

HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
15
PRESSURE WASHER OPERATOR’S MANUAL
98033250-7
OFF
ON
Outlet View
On/Off
Switch
Manifold
Pressure Adjustment
Screw Under Cap
Illustration showing air openings necessary
to supply air for combustion when installed
in an enclosed room.
Figure 3: Ventilation
Type"B", duetoitstemperaturerating,can onlybe
used with natural draft pressure washers. A "B" vent
is designed for exhaust temperatures not to exceed
470°F (245°C).
All venting installations must conform to local codes.
Intheabsenceoflocalcodes,referto"NationalFuel
Gas Code" NFPA 54 and be constructed of materials
approvedbytheUniformBuildingCode.
Vents penetrating ceilings or walls should be double-
wall approved appliance vents and should be one to
two inches from combustibles. Vents passing through
enclosed spaces and vents exposed to the weather
should also be the double-wall type. Sometimes vents
have to be built of such great length that they come
apart at their joints under their own weight.These
should be screwed together at the joints with sheet
metalscrews,usuallythreeperjoint.Iftheinspector
indicatesthattheventistooclosetocombustibles,it
may be necessary to chisel away some of the com-
bustible or route the vent pipe around the combustible.
The cross-sectional area of any flue shall not be less
that the cross-sectional area of the flue vent connection
outlet of machine.
Water Source:
The water source for the machine should be supplied
by a 5/8" I.D. garden hose with a city water pressure of
notlessthan30PSI.Ifthewatersupplyisinadequate,
orifthegardenhoseiskinked,themachinewillrun
very rough and the burner will not fire.
Water Connection:
Connect the high pressure hose by pulling the coupler
collar back and then inserting it onto the discharge
nipple. Secure it by pushing the collar forward.
Attach the wand into the spray gun using teflon tape
on the pipe threads to avoid leaks.
INSTALLATION INSTRUCTIONS
Inspection and Testing Gas Piping:
The building structure should not be weakened by
installing the gas piping.The piping should not be sup-
portedbyotherpiping,butshouldbermlysupported
withgashooks,straps,bandsorhangers.Buttorlap
welded pipe should not be run through or in an air duct
or clothes chute.
Beforeturninggasunderpressureintopiping,allopen-
ings from which gas can escape should be closed.
Immediatelyafterturningongas,thesystemshould
be checked for leaks.This can be done by watching the
1/2 cubic foot test dial for 5 minutes for any movement
or by soaping each pipe connection and watching for
bubbles.Ifaleakisfound,makethenecessaryrepairs
and repeat the above test.
Defective pipes or fittings should be replaced and not
repaired. Never use a flame or fire in any form to locate
gas leaks — use a soap solution.
After the piping and meter have been checked com-
pletely,purgethesystemofair.DO NOT bleed the air
inside an enclosed room.
During pressure testing of the system at test pressures
inexcess of 1/2PSIG,the pressure washerand its
individual shut-off valve must be disconnected from
gas supply piping system or damage to the gas valve
will occur.
Gas Pressure:
The ideal incoming gas pressure is 11 w.c.i (water
columninches).Minimumis9w.c.i.,maximumis14
w.c.i. or 1/2 PSIG.The correct operating manifold pres-
sure for natural gas is 2.8 w.c.i.The operating manifold
pressure for propane gas is 7.5 w.c.i.Byadjustingthe
gas valve pressure regulator between 3 and 4 w.c.i. a
side range can be achieved for natural gas.
If the desired input rating cannot be obtained within the
abovemanifoldpressureadjustingrange,thenthenext
size larger or smaller burner orifice should be used.

HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
OPERATOR’S MANUAL PRESSURE WASHER
16
INSTALLATION INSTRUCTIONS
The gas pressure coming out of the regulator and going
to the burner ring has been factory set for elevations of
0 to 2000 ft. Altitudes greater than 2000 ft will require
adjustments to the gas manifold pressures. Consult
your local service dealer/distributor for high altitude
adjustments. In Canada, certication for installation
ataltitudesover4500feetabovesealevelisthejuris-
dictionoflocalauthorities.Youshouldnotreadjustthe
burnerringgaspressure.Ifyoureplaceyourgasvalve,
youwillneed toadjustthe newvalve.Refertoyour
machine’s specification plate for the correct pressure
setting.Followtheinstallationandadjustmentinstruc-
tions provided with your replacement valve.
NOTE: Air for combustion and ventilation along with
exhaust flue sizing must conform to methods outlined
incurrentAmericanStandard(ANSI-Z223.1)National
Fuel Gas Code or National Standard of Canada CSA-
149.1 and CSA-149.2 “Installation Code for Gas Burn-
ing Appliances”.

HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
17
PRESSURE WASHER OPERATOR’S 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.
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 6.0 GPM.
3. This machine was factory built for natural gas/pro-
pane. See instructions under Fuel Supply.
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 wand trigger 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.
6. Installthepressurenozzleonendofwand,referto
illustration 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 safety trigger lock should be used
whenever the trigger gun is not in use.
IMPORTANT: On initial start-up or if maintenance
has been performed on the burner assembly, it will
be necessary to bleed the air from the gas line before
the pilot will light.
7. Ifyouarerunningthemachineforthersttime,or
haveperformedmaintenanceontheburnerassembly,
there will be air in the gas line. To bleed the air from
the gas line run the pressure washer with pump and
burner switches on and thermostat on highest setting.
Squeeze the trigger of the trigger gun for 15 seconds.
Iftheburnerhasnotignited,releasethetriggerfor5
seconds,thensqueezefor15seconds.Iftheburner
hasnotignitedafter10tries,seetheTroubleshoot-
ing Guide in this manual.
CAUTION: Have a qualified gas serviceman install
and service your equipment.
DANGER: Never expose a spark or flame where there
may be unburned gas present.
DANGER: Some gases are heavier than air and will
spill out on the floor in the 2 to 3 minutes required for
the safety pilot valve to close off gas supply. There-
fore, always provide adequate space and ventilation
around these units.
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. Turn ON water supply.
2. Turn ON gas supply.
3. Holdwandrmly,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.
Squeeze trigger of trigger gun.The pilot will automati-
callylight,quicklyfollowedbytheringoftheburner
ring.When the trigger of the trigger gun is released or
whenthethermostattemperaturesettingisreached,
the burner will automatically turn off.
IMPORTANT:If ignition or flame failure is experienced,
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.
98033250-8
Safety Trigger Lock
Pressure Nozzle

HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
OPERATOR’S MANUAL PRESSURE WASHER
18
OPERATION INSTRUCTIONS
To Clean
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.
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andlarger,
lightweight 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 • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
19
PRESSURE WASHER OPERATOR’S MANUAL
SHUTDOWN INSTRUCTIONS
To Stop
1. Ifdetergents wereused, drawclearwaterthrough
the detergent line to purge detergent. Failure to do
somayclogdetergentinjectorvalve.
2. If burner was used, turn OFF burner switch and
allow pump to run cold water through coil for several
minutes.
3. Turn pump switch OFF.
4. Turn water supply OFF.
5. Squeeze trigger gun open to relieve system pres-
sure.
6. Depress gas control knob slightly and turn to OFF
position.
7. Turn off main shut-off valve on gas supply.
STORAGE INSTRUCTIONS
DANGER: Do not store flammable liquids (gasoline,
diesel fuel, 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 system for several minutes. Open and close
the trigger gun several times to circulate antifreeze
through the unloader valve system. Also draw anti-
freeze through the detergent inlet line to antifreeze
the detergent system. For added protection after anti-
freezing,disconnectthepressurehosefrommachine
and remove the coil drain plug (refer to Component
Identification illustration for location). 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.

HOTSY • 900-1400 • 9.803-325.0-B OPERATOR MANUAL • GAS FIRED
OPERATOR’S MANUAL PRESSURE WASHER
20
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.
Pump
UseHotsyPumpOil(8.914-527.0)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rst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.
MAINTENANCE
• 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.
Gas Burner
It is recommended that the gas burner be serviced yearly
or as needed. Contact your local service center.
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.
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.
98033250-9
Dipstick
Sight Glass
(on Rear of Pump)
Oil Fill