B4885 - New Pressure Washer - Kercher HDS Manual.pdf

9.801-509.0 - E10/31/24

OPERATOR’S MANUAL

To locate your local Kärcher Commercial Pressure Washer Dealer nearest you, visit www.karchercommercial.com

HDS3.5/20 HDS4.0/22 HDS3.9/30

HDS5.0/23 HDS4.8/30 HDS6.3/32

HDS8.0/32 HDS9.5/30

LISTED ®

98015080-1

GROUND

TACH/HOUR

TACH/HOUR

1. Place all s witches in the “O

FF” p ositio n.

2. Connect p ower s upply to properly grounded outlet. T est the G FCI (if equipped) u sing the re set and test procedures provided on the GFCI device. The GFCI m ust be re set and tested with every use.

3. Secure high pressure hose, shut-o ff g un and wand to out-let

4. Connect w ater supply hose and turn on water.

5. Grasp wand

Place pump sw itch in the “O

N” p ositio n.

6. Turn gas va lve contro l knob to

“O N” p ositio

n. P ilot w ill l ight automatically when burner sw itch is turned “O

N”.

7. To heat w ater, p lace burner sw itch in the “O

N” positio n and adjust th erm ostat to desired temperature.

8. Turn on detergent and proceed with cleaning.

9. After cleaning:

A. Turn off d etergent and rin se.

B. Place burner sw itch in th e “O

FF” p ositio n.

C. A llow machine to discharge water fo r 2

-3 minutes to cool coil.

D. Place pump sw itch in the “O FF” p

E. S queeze tri gger g un to re lieve system pressure.

F.

Turn off w ater supply.

MODE D’EMPLOI

LIRE LE MANUEL DE L’O

PERATEUR AVANT UTILISATION UNE

MAUVAISE UTILISATION PEUT CAUSER DES BLESSURES OU

DOMMAGES MATÉRIELS.

INSTRUCCIONES DE OPERACION

LEA EL MANUAL DE OPERACIÓN ANTES DE USARSE. L

A OPERACIÓN

INADECUADA PUEDE OCASIONAR LESIONES PERSONALES O DAÑOS

A L

AS PROPIEDADES.

OPERATING IN

STRUCTIONS

READ OPERATING MANUAL BEFORE OPERATING MACHINE.

IMPROPER OPERATION MAY RESULT IN

PERSONAL IN

JURY OR

PROPERTY DAMAGE.

1. Coloque todos los interru ptores en la posición “O

FF” (A

PAGADO).

2. Conecte la fuente de energía a un tomacorrie nte conectado a tie rra de modo ad-ecuado. P ruebe el In terru ptor A ccionado por C orrie nte de Pérdida a Tierra (G

FCI

por s us siglas en In glés) (s i h ubiera) m ediante lo s procedimientos de re inicio y prueba incorporados en dicho dispositiv

o. E l G FCI d ebe re iniciarse y ponerse a prueba cada ve z que se use.

3. Asegure la m anguera de alta presión, p istola y va rilla al acoplador d el to macor-rie nte.

4. Conecte la manguera de suministro de agua y abra la lla ve.

5. Sujete la va rilla . C oloque el in terru ptor d e la bomba en la posición

“ON” (E

NCENDIDO).

6. Coloque la perilla de contro l de la válvula de gas en la posición “O N” (E

NCENDI-

DO). E

l piloto se encenderá automáticamente cuando el quemador se encienda.

7. A de calentar e l agua, coloque el in terru ptor d el quemador e n la posición “O N”

(ENCENDIDO) y ajuste el te rm ostato a la temperatura deseada.

8. Encienda el detergente y proceda con la lim pieza.

9. Después de lim piar:

A. Apague el detergente y enjuague.

B. Ponga el in terru ptor d el quemador e n la posición “O

FF” (A

PAGADO).

C. Deje que la máquina descargue agua por 2 ó 3 minutos para que se enfríe el serpentín.

D. Ponga el in ptor d e la bomba en la posición “O

E. Presione la pistola para aliviar la presión del sistema.

Cierre el suministro de agua.

1. Mettez tous les interru pteurs en positio n “O

FF”.

2. Connectez le bloc d’alim entation électriq ue à une prise corre ctement mise à la terre . Testez le disjoncteur d e fuite de terre (le cas échéant) à l’a ide des procédures de ré initia lisation et d

’essai in diquées sur le disjoncteur. L e disjoncteur d oit ê tre ré initia lisé et te sté à chaque utili-sation.

3. Fixe z le tuyau à haute pression, le pistolet et le tube rig ide au ra ccord de sortie

4. Connectez le tuyau à eau et fa ites couler l’e au.

5. Tenez le tu be rig ide ferm ement. M ettez l’in terru pteur d e la pompe en positio n “O

N”.

6. Tournez le bouton du ro binet d e gaz en positio n “O N”.

La ve ille use s’allume automatiquement lo rsque l’in terru pteur du brûleur est m is sur

“ON”.

7. Pour chauffer l’e au, m ettez l’in terru pteur d u brûleur sur “O

N” e t ré glez le therm ostat à la température vo ulue.

8. Active z le détergent et commencez le nettoyage.

9. Après le nettoyage :

A. Coupez le détergent et ri ncez.

B. Mettez l’in pteur d u brûleur sur “O

FF”.

C. Laissez la machine évacuer l’e au pendant 2 à 3 minutes, le temps que la bobine re fro idisse.

D. Mettez l’in pteur d e la pompe sur “O

E. Actionnez le pistolet pour ré duire la pression du système.

Coupez l’e au.

WARNING

PRECAUCION / A

VERTISSEMENT

TO REDUCE THE RISK

OF IN

JURY READ

OPERATOR’S MANUAL

CAREFULLY BEFORE

USING. THIS MACHINE

TO BE USED ONLY BY

QUALIFIED OPERATORS.

LEA EL MANUAL OPERACION ANTES

DE USARSE. E

STE EQUIPO DEBE SER

USADO SOLAMENTE POR OPERA-

DORES CALIFICADOS.

LIRE LE MANUEL DE L’O

PERATEUR

AVANT UTILISATION. C

ET APPAREIL

DOIT ETRE UTILISE PAR DES OPERA-

TEURS QUALIFIES.

RISK OF IN

JURY—

PROTECTIVE EYE-

WEAR AND CLOTHING

MUST BE WORN.

when operating th is machine.

PROTEJASE LOS OJOS CU-

ANDO se opere este equipo.

DES LUNETTES DE SECURITE

DOIVENT ETRE PORTEES

lorsque vo us operez cet a ppareil.

RISK OF

ASPHYXIATION. U

se only in well v enti-lated area.

RIESGO DE ASFIXIA. U

se el producto en un area de ve nti-lación adecuada.

RISQUE D’ASPHYXIE. U

tilis er dans un endroit b ien aéré.

RISK OF

ELECTROCUTION. C

onnect o nly to properly grounded outlet. K eep all c on-nections dry and off t he ground. K eep spray away fro m electric al w irin g and components. D isconnect fr om electric al supply before servicing.

RIESGO DE ELECTROCUCIÓN —

Co-necte el enchufe en un contacto adecuado.

Mantenga to das las connecciones secas y arrib a del suelo. N o ro cie componentes eléctric

os. D esconecte la corrie nte eléctric a antes de dar s ervicio.

RISQUE

D’ELECTROCUTION

— R elier à des prises avec mise à la te rre seulement.

Tous les doive nt ê tre maintenus secs et é sus-pendus. N o jamais projeter de l’e au sur le s com-posantes et électriq ues.

Couper l’a lim entatation électriq ue avant d e faire une réparation.

RISK OF IN

JECTION OR SE-

VERE IN

JURY TO PERSONS.

Keep clear o f n ozzle.

HOT DISCHARGE FLUID —

Do not to uch or d ire ct d ischarge stre am at p ersons.

RIESGO DE PENETRACIÓN O

LESIONES SEVERAS A PERSO-

NAS. M

anténgase fu era del alcance de boquilla

DESCARGA DE AGUA CALIENTE

A ALTA PRESION —

No to que ni dirija el del agua a otra s personas.

RISQUE DE BLESSURES. S

e te nir loin des buses.

EAU CHAUDE SOUS PRESSION A

LA SORTIE —

Ne pas dirig er le jet d’eau ve rs des personnes.

SPRAY GUN KICKS BACK

— Hold with both hands.

LA PISTOLA SE MUEVE CON

LA PRESIÓN —

Sostenga con las dos m anos.

LA POIGNEE PISTOLET RE-

POUSSE —

Tenir à deux m ains.RISK OF IN

JURY—HOT

SURFACES CAN CAUSE

BURNS —

Use only designed grip ping areas of spray gun and wand.

SUPERFICIES CALIENTES

— Use solamente las áreas aisladas del gatillo y la lanza.

SURFACES CHAUDES —

Toucher s eulement le s partie s isolées des poignée pistolets et la nces.

RIESGO DE EXPLOSION —

Use el producto en áreas donde el fu ego o lla ma sean perm itid

os. N o ro cie liquidos

RISQUE D’EXPLOSION —

Utilis er aux endroits où une nue est perm ise. N e pas va poriser d e liq uides

RISK OF

EXPLOSION. O

perate only where open or to rch is perm itte d.

Do not spray liquids.

RISQUE DE FEU OU D’EXPLOSION

RIESGO DE IN

CENDIO O EXPLOSIÓN

RISK OF FIRE OR EXPLOSION

Machine needs to be in stalled on non-combustib le with m inimum clearance of 1

8”.

Before lig hting, s mell a ll a round th e appliance area fo r gas. Be sure to smell n ext to the because some gas is heavier th an air a nd will s ettle on the If y ou smell gas, i mmediately call y our gas supplier fo r in stru ctions. I f gas supplier can not be reached, call th e departm ent.

Do not use tools to push in or tu rn the gas contro l knob.

If k nob will n ot p ush in or tu rn by hand, c all a service technician. U sing force or a tte mpting re pair m ay result in a or e xplosion.

Should pilot o utage occur, t urn contro l knob to O

FF

positio

n. W ait 5 m inutes before re lighting.

Do not u se th is equipment if any part h as been under water. I mmediately call a service te chnician to in spect for re pair.

El equipo debe ser in stalado sobre un piso re sistente al in cendio, con un espacio lib re de 18” m inimo.

Antes de encender, o lfatee alre dedor d el aparato para detectar g

as. E sté seguro de re visar c erca del p iso, porque cierto s gases son m ás pesados que el aire . S i olfatea gas, a vise in mediatamente a su proveedor d e gas. Al no localizar e l proveedor, ll ame a los bomberos.

No use herra mientas para m over e l c ontro l d el g as.

Si la m anija no se puede operar c on la m ano, lla me a un té cnico capacitado. F orzar o in tentar re parar e ste contro l puede re sultar e n un incendio o explosión.

En el caso de apagarse el p iloto, a pague y espere 5 minutos antes de encender.

No utilic e este equipo en el caso que hubiera estado sumergido en agua parcial o to talmente un compo-nente. C onsulte con un té cnico de servicio.

Ne pas in staller c e m achine aux endroits où il y a des combustibles (m ême les plancher) d edans un demi-m ètre

Avant l’ allumage, autour d e l’a ppareil p our d es senteurs de gaz.

les odeurs près du plancher c ar certa ins gaz sont plus lourds que l’a ir e t s’accumulent sur le plancher. S i vo us détectez une odeur d e gaz, a ppelez immédiatement v otre fo urnisseur d e gaz. S i c elui-ci n e peut ê tre joint, a ppeler le départe ment d es incendies.

Ne pas utilis er d’outils pour pousser ou tourner la soupape de contrô le du gaz. Si la soupape ne peut être enfoncée ou tournée à la main, appeler un technicien

Forcer ou essayer d e ré parer p eut causer u n fe u ou une explosion.

Si le pilote s’éteint, t ourner la soupape de contrô le en positio n OFF. A tte ndre 5 m inutes avant d e ré allumer.

er cet équipement si une partie a été im mergée dans l’e

au. A ppeler u n te chnicien pour in specter c elui-ci.

8.900-990.0

CHAUD!

9.801-509.0 - E • Karcher Operator's Manual

SYMBOLS

Pump Switch

Detergent

Steam Combination

Hour Meter

Motor Overload When the light is on, it means the overload is tripped.

Reset overload.

Pilot Light When the light is on, it means there is power to the pilot control. If there is no light, see troubleshooting guide.

Voltage When the light is on, it means power supply is on

Burner Switch

Not all machines have all symbols

Identification of Operational Label Symbols

CONTENTS

9.801-509.0 - E • Karcher Operator's Manual

Identification of Operational Label Symbols 2 Introduction & Safety Information 4-6 Component Identification-All Models 7 Installation HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 8 Installation HDS 6.3/32, 8.0/32, 9.5/30 19 Installation 10-16 Assembly Instructions 17 Operating Instructions 18 Applying Detergent & General Washing Techniques 19 Shutting Down & Cleanup 20 Storage 20 Troubleshooting 21-24

Maintenance & Service 25 Heating Coils 25

Propane Gas 16 Burner Features 26-27 Basic Facts and Equivalents 28 Equivalents and Oil Change 29 Preventive Maintenance 30

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 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 ma-chine and result in death, seri-ous bodily injury and/or property damage.

2. Know how to stop the machine and bleed pres-sure 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 com-pany or the selling distributor for specific details.

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.

WARNING: Keep wand, hose, and water spray away from electric wiring or fatal electric shock may result.

WARNING: To protect the op-erator from electrical shock, the machine must be electrically grounded. It is the responsi-bility of the owner to connect this machine to a grounded re-ceptacle of proper voltage and amperage ratings. Do not spray water on or near electrical components.

6. 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.

WARNING

KEEP WATER

SPRAY AWAY FROM

ELECTRICAL WIRING.

IMPORTANT SAFETY INFORMATION

8. Keep operating area clear of all persons.

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 necessary when a machine is used near chil-dren. Do not allow children to operate pressure washer. This machine must be attended dur-ing operation.

WARNING

TRIGGER GUN KICKS

BACK — HOLD WITH

BOTH HANDS

WARNING: Grip cleaning wand securely with both hands before starting. Failure to do this could result in injury from a whipping wand.

11. Never make adjustments on machine while in operation.

12. Be certain all quick coupler fittings are secured before using pressure washer.

RISK OF INJECTION

OR SEVERE INJURY TO

PERSONS OR

ANIMALS. 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 animals, or severe injury or death will re-sult.

WARNING

PROTECT FROM

FREEZING

WARNING: Protect machine from freezing.

13. To keep machine in best op-erating conditions, it is important you protect machine from freezing.

Failure to protect machine from freezing could cause malfunc-tion of the machine and result in death, serious bodily injury, and/or property damage. Follow 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 pre-caution 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 influence of alcohol, prescription medications, 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 propane 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.

22. Install optional LP gas regulator assembly, item 9.802-633.0 or obtain a proper size regulator.

IMPORTANT SAFETY INFORMATION

23. 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.

24. Install this machine on non combustible flooring.

25. Do not allow acids, caustic or abrasive fluids to pass through the pump.

26. Never run pump dry or leave spray gun closed longer than 3 minutes.

WARNING

IF CONNECTED

TO A POTABLE

WATER SUPPLY,

PROTECT AGAINST

BACKFLOW.

WARNING: If connection is made to potable water supply, a back flow device must be provided.

27. Exhaust gases should not be vented into a wall, a ceiling or a concealed space within a building.

A draft diverter must be installed to prevent down draft and to allow for the cooling of exhaust tem-peratures. It is recommended to install the draft diverter 36" above the pressure washer stack; however, it can be installed at a lower height in special cases, such as when low ceilings are present. The draft diverter be-ing right on top of the machine in cold freezing environments could potentially allow the coil to be frozen and damage the coil. Check local codes and standards for specific installation requirements. Exhaust gases that exceed 470°F (243°C) are not suitable for connection to Type B gas vents.

WARNING

DO NOT SPRAY

MACHINE OR ANY

PEOPLE, ANIMALS OR

ELECTRICAL PARTS.

WARNING: Do not spray ma-chine or any people, animals or electrical parts.

ITEM PART NO. DESCRIPTION QTY

9.802-633.0 Regulator, LP Assembly 1

1 9.802-019.0 Nipple, 3/4" x 2", Black 1

2 8.717-747.0 Regulator, R622CFF for R932/28 & R932462 1

3 8.717-746.0 Regulator, Hi Pressure, R321H22 1

4 8.711-855.0 Hose, 1/2" x 19", Propane 1

5 8.717-782.0 Fitting, Pigtail, Fisher, M318 (Included when ordering part 8.717-746.0) 1

98015100-48

To Propane

Bottle

To Pressure Washer

Gas Inlet

Optional Regulator Kit 9.802-633.0

Example of Down Draft Diverter for Gas Fired Machines

Follow the maintenance instructions specified in the manual.

COMPONENT IDENTIFICATION - ALL MODELS

Pump — Delivers a specific gpm to the high pressure nozzle which develops pressure. (Not Shown)

Spray Gun — Controls the application of water and deter-gent onto cleaning surface with trigger device. Includes safety latch.

Detergent Valve— Allows you to siphon and mix de-tergents.

Wand — Must be connected to the spray gun.

High Pressure Hose — Connect one end to water pump high pressure discharge nipple and the other end to spray gun.

Rupture Disk — Secondary pressure release in the un-likely event the unloader valve fails. (Not Shown)

Unloader Valve — Safety device which, when the spray gun closes, prevents over pressurization. (Not Shown)

NOTE: If trigger on spray gun is released for more than 3 minutes, water will leak from the pump protector.

Warm water will discharge from pump protector onto floor. This system prevents internal pump damage.

98015080-2

GROUND

TACH/HOUR

TACH/HOUR

1. Place all s witches in the “O

FF” p ositio n.

2. Connect p ower s upply to properly grounded outlet. T est the G FCI (if equipped) u sing the re set and test procedures provided on the GFCI device. The GFCI m ust be re set and tested with every use.

3. Secure high pressure hose, shut-o ff g un and wand to out-let

4. Connect w ater supply hose and turn on water.

5. Grasp wand

Place pump sw itch in the “O

N” p ositio n.

6. Turn gas va lve contro l knob to

“O N” p ositio

n. P ilot w ill l ight automatically when burner sw itch is turned “O

N”.

7. To heat w ater, p lace burner sw itch in the “O

N” positio n and adjust th erm ostat to desired temperature.

8. Turn on detergent and proceed with cleaning.

9. After cleaning:

A. Turn off d etergent and rin se.

B. Place burner sw

FF” p

C. A llow machine to discharge water fo r 2 -3 minutes to cool coil.

D. Place pump sw

FF” p

E. S queeze tri gger g un to re lieve system pressure.

Turn off w ater supply.

MODE D’EMPLOI

LIRE LE MANUEL DE L’O

PERATEUR AVANT UTILISATION UNE

MAUVAISE UTILISATION PEUT CAUSER DES BLESSURES OU

DOMMAGES MATÉRIELS.

INSTRUCCIONES DE OPERACION

LEA EL MANUAL DE OPERACIÓN ANTES DE USARSE. L

A OPERACIÓN

INADECUADA PUEDE OCASIONAR LESIONES PERSONALES O DAÑOS

A L

AS PROPIEDADES.

OPERATING IN

STRUCTIONS

READ OPERATING MANUAL BEFORE OPERATING MACHINE.

IMPROPER OPERATION MAY RESULT IN

PERSONAL IN

JURY OR

PROPERTY DAMAGE.

1. Coloque todos los interru ptores en la posición “O

FF” (A

PAGADO).

2. Conecte la fuente de energía a un tomacorrie nte conectado a tie rra de modo ad-ecuado. P ruebe el In terru ptor A ccionado por C orrie nte de Pérdida a Tierra (G

FCI

por s us siglas en In glés) (s i h ubiera) m ediante lo s procedimientos de re inicio y prueba incorporados en dicho dispositiv

o. E l G FCI d ebe re iniciarse y ponerse a prueba cada ve z que se use.

3. Asegure la m anguera de alta presión, p istola y va rilla al acoplador d el to macor-rie nte.

4. Conecte la manguera de suministro de agua y abra la lla ve.

5. Sujete la va rilla . C oloque el in terru ptor d e la bomba en la posición

“ON” (E

NCENDIDO).

6. Coloque la perilla de contro l de la válvula de gas en la posición “O N” (E

NCENDI-

DO). E

l piloto se encenderá automáticamente cuando el quemador se encienda.

7. A de calentar e l agua, coloque el in terru ptor d el quemador e n la posición “O N”

(ENCENDIDO) y ajuste el te rm ostato a la temperatura deseada.

8. Encienda el detergente y proceda con la lim pieza.

ptor d el quemador e n la posición “O ptor d e la bomba en la posición “O el suministro de agua.

1. Mettez tous les interru pteurs en positio n “O

FF”.

2. Connectez le bloc d’alim entation électriq ue à une prise corre ctement mise à la terre . Testez le disjoncteur d e fuite de terre (le cas échéant) à l’a ide des procédures de ré initia lisation et d

’essai in diquées sur le disjoncteur. L e disjoncteur d oit ê tre ré initia lisé et te sté à chaque utili-sation.

3. Fixe z le tuyau à haute pression, le pistolet et le tube rig ide au ra ccord de sortie

4. Connectez le tuyau à eau et fa ites couler l’e au.

5. Tenez le tu be rig ide fe rm ement. M ettez l’in terru pteur d e la pompe en positio n “O

N”.

6. Tournez le bouton du ro binet d e gaz en positio n “O N”.

La ve ille use s’allume automatiquement lo rsque l’in terru pteur du brûleur e st m is sur

“ON”.

7. Pour chauffer l’e au, m ettez l’in terru pteur d u brûleur sur “O

N” et ré glez le therm ostat à la température vo ulue.

8. Active

A. Coupez le détergent e t ri pteur d pteur d

E. Actionnez le pistolet p our ré au.

WARNING

PRECAUCION / A

VERTISSEMENT

TO REDUCE THE RISK

OF IN

JURY READ

OPERATOR’S MANUAL

CAREFULLY BEFORE

USING. THIS MACHINE

TO BE USED ONLY BY

QUALIFIED OPERATORS.

LEA EL MANUAL OPERACION ANTES

DE USARSE. E

STE EQUIPO DEBE SER

USADO SOLAMENTE POR OPERA-

DORES CALIFICADOS.

LIRE LE MANUEL DE L’O

PERATEUR

AVANT UTILISATION. C

ET APPAREIL

DOIT ETRE UTILISE PAR DES OPERA-

TEURS QUALIFIES.

RISK OF IN

JURY—

PROTECTIVE EYE-

WEAR AND CLOTHING

MUST BE WORN.

when operating th is machine.

PROTEJASE LOS OJOS CU-

ANDO se opere este equipo.

DES LUNETTES DE SECURITE

DOIVENT ETRE PORTEES

lorsque vo us operez cet a ppareil.

RISK OF

ASPHYXIATION. U

se only in well v enti-lated area.

RIESGO DE ASFIXIA. U

se el producto en un area de ve nti-lación adecuada.

RISQUE D’ASPHYXIE. U

tilis er dans un endroit b ien aéré.

RISK OF

ELECTROCUTION. C

on-nections dry and off t he ground. K eep spray away fro m electric al w irin g and components. D isconnect fr om electric al supply before servicing.

RIESGO DE ELECTROCUCIÓN —

Co-necte el enchufe en un contacto adecuado.

Mantenga to das las connecciones secas y arrib a del suelo. N o ro cie componentes eléctric

os. D esconecte la corrie nte eléctric a antes de dar s ervicio.

RISQUE

D’ELECTROCUTION

— R elier à des prises avec mise à la te rre seulement.

Tous les doive nt ê maintenus secs et é sus-pendus. N o jamais projeter de l’e au sur le s com-posantes et électriq ues.

Couper l’a lim entatation électriq ue avant d e faire une réparation.

RISK OF IN

JECTION OR SE-

VERE IN

JURY TO PERSONS.

Keep clear o f n ozzle.

HOT DISCHARGE FLUID —

Do not to uch or d ire ct d ischarge stre am at p ersons.

RIESGO DE PENETRACIÓN O

LESIONES SEVERAS A PERSO-

NAS. M

anténgase fu era del alcance de boquilla

DESCARGA DE AGUA CALIENTE

A ALTA PRESION —

No to que ni dirija el del agua a otra s personas.

RISQUE DE BLESSURES. S

e te nir loin des buses.

EAU CHAUDE SOUS PRESSION A

LA SORTIE —

Ne pas dirig er le jet d’eau ve rs des personnes.

SPRAY GUN KICKS BACK

— Hold with both hands.

LA PISTOLA SE MUEVE CON

LA PRESIÓN —

Sostenga con las dos m anos.

LA POIGNEE PISTOLET RE-

POUSSE —

Tenir à deux m ains.RISK OF IN

JURY—HOT

SURFACES CAN CAUSE

BURNS —

Use only designed grip ping areas of spray gun and wand.

SUPERFICIES CALIENTES

— Use solamente las áreas aisladas del gatillo s partie s isolées des poignée pistolets et la nces.

RIESGO DE EXPLOSION —

Use el producto en áreas donde el fu ego o lla ma sean perm itid

os. N o ro cie liquidos

RISQUE D’EXPLOSION —

Utilis er aux endroits où une nue est perm ise. N e pas va poriser d e liq uides

RISK OF

EXPLOSION. O

itte

RIESGO DE IN

CENDIO O EXPLOSIÓN

RISK OF FIRE OR EXPLOSION

Machine needs to be in stalled on non-combustib le with m inimum clearance of 18”.

Before lig hting, s mell a ll a round th e appliance area fo r gas. Be sure to smell n ext to the because some gas is heavier th an air a nd will s ettle on the If y ou smell gas, i mmediately call y our gas supplier fo r in stru ctions. I f gas supplier can not be reached, call th e departm ent.

Do not use tools to push in or tu rn the gas contro l knob.

If k nob will n ot p ush in or tu rn by hand, c all a service technician. U sing force or a tte mpting re pair m ay result in a or e xplosion.

Should pilot o utage occur, t urn contro l k nob to

O

FF

positio

n. W ait 5 m inutes before re lighting.

Do not u se th is equipment if any part h as been under water. I mmediately call a service te chnician to in spect for re pair.

sistente al in cendio, con un espacio lib dedor d el aparato para detectar g

as. E sté seguro de re visar c erca del p iso, porque cierto s gases son m ás pesados que el aire. S i olfatea gas, a vise in mediatamente a su proveedor d e gas. Al no localizar e over e l c ontro l d el g as.

Si la m anija no se puede operar c on la m ano, lla me a un té cnico capacitado. F orzar o in tentar re parar e ste contro l puede re sumergido en agua parcial o to talmente un compo-nente. C e m achine aux endroits où il y a des combustibles (m ême les plancher) d edans un demi-m autour d e l’a ppareil p our d es senteurs de gaz.

les odeurs près du plancher c ar certa ins gaz sont plus lourds que l’a ir e t s’accumulent sur le plancher. S i vo us détectez une odeur d e gaz, a ppelez immédiatement v otre fo urnisseur d e gaz. S i c elui-ci n e peut ê tre joint, a ppeler le départe pour pousser ou tourner la soupape de contrô le du gaz. S i la soupape ne peut être enfoncée ou tournée à la main, appeler un technicien

Forcer ou essayer d e ré parer p eut causer u n feu ou une explosion.

ourner la soupape de contrô le en positio n OFF. A tte ndre 5 m inutes avant d a été im mergée dans l’e

au. A ppeler u n te chnicien pour in specter c elui-ci.

8.900-990.0

CHAUD!

Detergent Valve

Spray Gun

Spray Wand

Trigger

High Pressure Power

Nozzle

Exhaust Collar

High Pressure Hose

Water Supply Hose

(not included)

Pump/Burner Switches

Access Panel

Detergent Line

Hot Water Discharge Nipple

Water Inlet

Detergent Bucket (not included)

Gas Inlet located at Rear of Machine

INSTALLATION HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30

98015080-3

36.00" (Recommended)

Control Panel

19.50" Dia.

Customer Supplied Draft

Diverter

24.00"

24.87"

4.00"

High Pressure Out 22mm

Screw Connection

48.54"

36.68"

24.50"

24.00"

12.00"

49.00"

Water In

3/4" GHF

21.30"

20.61"20.61"

Exhaust Out 10" Dia.

NOTE: : It is recommended to install the draft diverter at least 36" above the exhaust outlet.

Check local codes and standards for detailed installation requirements.

Piping to Outside

3.70"

Floor Mounting Dimensions

3/4" Gas Inlet

Connection

Inlet Electrical Connection

98015080-4

INSTALLATION HDS 6.3/32, 8.0/32, 9.5/30

36" (Recommended)

Piping to Outside

Floor Mounting Dimensions

19.50" Dia

Customer Supplied Draft

Diverter

Control Panel

61.00"

17.33" 34.79"

17.36"

26.18"

3.64"

High Pressure Out 22mm Screw

Connection

31.77"

64.00"

26.91" 26.91"

Water In

3/4" GHF

Exhaust Out 12" Dia.

NOTE: : It is recommended to install the draft diverter at least 36" above the exhaust outlet.

Check local codes and standards for detailed installation requirements.

1" Gas Inlet

Connection

Inlet Electrical Connection

INSTALLATION

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 upstream 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 connection 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 loca-tion, one shall be installed.

Figure 1: Union Location

Union Connection The following pipe sizes are just recommendations. Al-ways consult a local plumber and venting contractor 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, specific gravity of 0.6 and pressure loss of 0.5" W.C. Numbers are for straight schedule 40 pipe; fittings

Place machine in a convenient location providing ample support, drainage and room for maintenance (pgs 8-9).

Location:

The location should protect machine from damaging envi-ronmental 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 tem-peratures, rain, etc. The machine should be located considering accessibility for the replac-ing of components and the refilling of deter-gents, adjustments and maintenance. 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 between 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 electri-cal 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 in-stalled 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 ad-equate).

WARNING: Avoid small areas or near exhaust fans.

Gas Codes:

Confer with local gas company and with proper municipal officials regarding any specific code or regulations gov-erning the installation. The installation must conform to local codes (NFPA 54).

Electrical:

The machine, when installed, must be electrically ground-ed in accordance to local codes. Check for proper power supply using a volt meter; check the serial plate for the correct requirements.

Gas Piping:

98015100-25

Manual Shut-Off Valve

1/8" NPT Plugged Pressure Gauge Port Location

Union

Drop

Floor Level

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 are equipped with a fixed liquid level gauge which con-tacts the liquid level at 80% of container capacity, 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%.

Room Vents for Combustion and Ventilation Air Properly sized vents are vital for the safe and efficient op-eration of a pressure washer installed in a confined space.

When combustion and ventilation air are supplied from inside the building, each opening must have an area of one square inch for every 1,000 BTUH input. When com-bustion 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.

NOTE: Air vents for combustion and ventilation and exhaust flue sizing must conform to methods outlined in current American Standard (ANSI-Z223.1), National Fuel Gas Code of National Standard of Canada CSA-149.1 and CSA-149.2 “Installation Code for Gas Burner Appliances”.

Exhaust Stack The purpose of venting a gas-fired 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). Always use strong, gas-tight, insulated pipe.

The design of this pressure washer depends on natural draft (heat induced) to pull combustion gasses out of the combustion chamber. The design of the exhaust stack can have a significant impact on the proper operation of the burner and coil.

During vent installation, avoid sharp turns, long horizontal runs and improper pitches. Maintain proper support of vent connectors and joints, observe clearances from all combustibles and top the vent outlet with an approved cap.

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

INSTALLATION

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.

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 flammable, is always contained under pressure 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 cylin-ders. DO NOT USE damaged or rusted containers.

DO NOT store LP-gas containers indoors or in enclosed 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 op-erate on LP-gas vapor only. Therefore, all LP-gas containers designed for vapor service must be transported, 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 horizon-tal 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 transporting or stor-ing disconnected containers (full or empty). Check for leaks after connecting. Apply approved leak 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 re-ceives a relatively uniform pressure from the first stage regulator. This helps the second stage regulator to main-tain 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 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 combustible 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.

The pressure washer includes a collar that will mate with standard HVAC ducting. The user will be responsible for installation of an exhaust stack. The exhaust stack should include a Draft Diverter/Inducer, Damper, Sampling Port and Rain Cap. An adapter can be installed between the collar and stack to adjust the diameter from 10” to 8” or

12” to 10”.

Size the stack according to the following (see also appli-cable local and national standards regarding installation of gas-fired appliances):

• 3.5 to 4.4 gpm 10” Collar 8” Stack

• 4.5 to 5.5 gpm 10” Collar 10” Stack

• 6.3 gpm 12” Collar 10” Stack

• 8 – 10 gpm 12” Collar 12” Stack

(Figure 4)

Draft Diverter/Hood: The draft required to vent com-bustion gases is created by the heat inside the pressure washer coil. A draft diverter helps improve draft into the stack without pulling more air through the combustion box and decreasing combustion efficiency. The draft di-verter can also help prevent back drafting that can inhibit combustion. See Figure 4.

Power Vent (Draft Inducer): If this machine is going to be installed on a 90° or extended exhaust vent run length which may restrict air flow it is recommended that a contractor install a power vent. When a contractor has found it impossible to vent straight through the roof power venting is recommended to help eliminate exhaust restriction of this natural draft machine. This draft inducer (power vent) must be installed by a licensed contractor who can calculate size, operation connections and associ-ated dampeners. Since we are a manufacturer and not a licensed contractor and as such we are unable to make recommendations for suitable make and model of power vents and compliance with local building codes.

Damper: An exhaust stack can reduce thermal efficiency by drawing in too much combustion air. This can be con-trolled by adding a damper just below the draft diverter.

8.753-473.0 - 8" Damper, 8.753-474.0 -10" Damper, 8.753-

418.0 - 12" Damper.

NOTE: Closing the damper can create high levels of CO in the exhaust. Adjustments to the damper should only be performed by a trained technician using a flue gas analyzer. If an analyzer is not used the damper should be set in the fully open position.

Sampling Port: A port for sampling flue gases and measuring the flue gas temperature should be placed 18” above the flue collar. The port should be covered when sampling is not being performed. The size of the port should be only slightly larger than the probe for the flue gas analyzer.

Rain Cap: A rain cap should be installed on top of the stack to prevent rain water, leaves and debris from enter-ing the stack. Your installer may also recommend specialty caps for high wind areas or cold weather zones to help prevent back drafting. 8.717-731.0 - 10" Raincap, 8.717-

732.0 - 12" Raincap.

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.

Inspection and Testing Gas Piping:

The building structure should not be weakened by install-ing the gas piping. The piping should not be supported by other piping, but should be firmly 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.

INSTALLATION

Illustration showing air openings necessary to supply air for combustion when installed in an enclosed room.

Figure 3: Ventilation

Draft Diverter Required

8.717-728.0 8" 9.801-040.0 10" 8.717-730.0 12"

Before turning gas under pressure into piping, all open-ings from which gas can escape should be closed. Im-mediately 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 pip-ing system or damage to the gas valve will occur.

Gas Pressure:

The incoming gas pressure must be a minimum of 9.0 wc-in and must not exceed 13.8 wc-in or ½ psig to the control valve. Line pressure above ½ psig must be regulated prior to the machine. The ideal supply pressure is 13.0-13.5 wc-

in. If the required BTU input can not be achieved consult the factory for instructions regarding changes to the nozzle orifice size and an appropriate manifold setting.

NOTE: Any changes to the burner and manifold pressure setting should only be performed by a trained technician and adjusted using a flue gas analyzer.

The manifold pressure has been preset at the factory according to the table below for optimum operation at sea-level. The manifold pressure and BTU input will be listed on the specification plate for the machine.

For Tech Tip Instructions Combustion efficiency in a natural draft pressure washer is significantly influenced by the heat created inside the coil, the design of the coil and flue and the length and diameter of the exhaust stack. The table below shows data included in the operator’s manual for flue and stack sizes and gas manifold pressure settings. These sizes are critical for achieving proper combustion and acceptable emissions.

Testing has shown that simply adding a 36” stack exten-sion to the flue adapter on top of the pressure washer can reduce the outlet temperature by 5-10°F. This occurs by inducing a higher pressure differential at the exit of the coil and increasing the flow of air into the combustion process and through the stack. Most or all of the lost outlet temperature can be recovered by installing and adjusting a damper in the stack. However this adjustment must only be performed by a trained technician using a combustion analyzer. An adequate combustion analyzer

NG LP

Model Collar Stack wc-in kBTU-in wc-in kBTU-in

3.5@2000 10" 8" 3.6 310 7.8 310

3.9@3000 10" 8" 3.4 354 7.4 354

4@2200 10" 8" 5.1 364 11.2 364

4.8@3000 10" 10" 4.2 415 9.1 415

5.0@2300 10" 10" 4.7 439 9.5 439

6.3@3200 12" 10" 4.3 507 7.4 507

8@3200 12" 12" 3.1 658 7.0 658

9.5@3000 12" 12" 5.4 816 10.0 775 can be purchased for a little at $500 (Bacharach Fyrite Tech, Testo 310). The analyzer must determine percent oxygen and/or percent excess air as a minimum.

The damper should be installed 24-36” above the flue adapter. The pressure washer can be operated safely with the damper fully open but with the lower outlet temperature. If the damper is closed too far there will not be enough oxygen to burn all of the fuel. This will cause higher and potentially dangerous levels of CO in the flue gas emissions.

To adjust the damper for proper combustion and effi-ciency perform the following:

1. If there is no sample port for the analyzer probe, drill a hole slightly larger than the combustion analyzer probe through the exhaust stack at a point about 18” above the flue adapter.

2. Insert the probe of the combustion analyzer so that the tip is at the center of the stack.

3. Open the damper to the fully open position.

4. Start the pressure washer and allow it to heat up for at least 20 minutes before making any adjustments.

5. Note the values for % Excess Air and/or % Oxygen.

6. Close the damper in small increments until % Excess Air is between 20-30% and/or % Oxygen is 4-5%.

This process can also be used when turning down the firing rate for high altitude installations above 2000 ft.

1. Adjust the gas pressure down 4% for every 1000 ft of elevation.

Example: Recommended firing rate for a 4.8@3000 is 4.2 wc-in. For an installation at 3500 feet reduce this pres-sure by 16% by setting the manifold pressure to 4.2*.84 = 3.5 wc-in.

A manometer capable of reading to at least the nearest

0.1 wc-in will be required for this adjustment. These can be found for less than $200 (Extech HD700).

INSTALLATION

INSTALLATION

2. Follow steps 1-6 above to optimize the outlet tem-perature of the pressure washer.

Installations Above 2000 ft:

Installation at altitudes greater than 2000 ft will require adjustments to the gas manifold pressure.

For installations above 2000 feet the firing rate should be reduced by 4% per 1000 feet. Example: Recommended firing rate for a 4.8@3000 is 4.2 wc-in. For an installation at 3500 feet reduce this pressure by 16% by setting the manifold pressure to 4.2*.84 = 3.5 wc-in. This adjustment should only be made by a properly trained service techni-cian. A manometer capable of reading to the nearest 0.1 wc-in will be required for this adjustment.

In Canada, certification for installation at altitudes over 4500 feet is the jurisdiction of local authorities.

Gas Valve Replacement:

If you replace your gas valve the manifold pressure for the new valve will need to be adjusted to match the specifi-cation plate for the machine. Follow the installation and adjustment instructions provided with your replacement valve. A manometer capable of reading to the nearest 0.1 wc-in will be required for this adjustmen

CAUTION: All gas conversion must be done by a qualified service person in accordance with these instructions and in compliance with all codes and requirements. In Canada, gas conversion shall be carried out in accordance with requirements of the Provincial Authorities having jurisdiction and in accordance with the requirements of the CAN/ GGA-B149.1 and .2 installation code.

INSTALLATION

FOR YOUR SAFETY READ BEFORE…