Landa VLP3-1100 Operating instructions

PRESSURE WASHERS
®
OPERATOR’S MANUAL
LANDA, INC. ■ 4275 N.W. Pacific Rim Blvd. ■ Camas,WA 98607 ■ USA
For technical assistance or the Landa Dealer nearest you, call 800-LANDA-4-U (800-526-3248) or [phone]
or consult our web page at www.landa-inc.com
■VNG/VLP3-1100 ■VNG/VLP4-2000 ■VNG/VLP4-3000
■VNG/VLP6-3000 ■VNG/VLP8-2500 ■VNG/VLP4-4000
VNG
VLP

Introduction...................................................................................................................................5
Important Safety Information.........................................................................................................5
Installation ...............................................................................................................................5-10
Location ....................................................................................................................................5
InstallationGuide ......................................................................................................................6
Gas Codes................................................................................................................................7
Electrical ...................................................................................................................................7
Gas Piping ................................................................................................................................7
Propane Gas ............................................................................................................................7
Natural Gas ..............................................................................................................................8
Venting......................................................................................................................................8
Draft Diverter ............................................................................................................................8
Water Source............................................................................................................................8
Water Connection .....................................................................................................................8
Inspecting &Testing Gas Piping................................................................................................9
Gas Pressure............................................................................................................................9
Warning and Check Lists .....................................................................................................9-10
Operating Instructions.................................................................................................................11
PreventativeMaintenance...........................................................................................................11
General OperatingTechniques....................................................................................................11
ComponentIdentification ..........................................................................................................112
Maintenance & Service...............................................................................................................13
Heating Coil ................................................................................................................................13
GasValve Regulator Adjustment ...........................................................................................13-14
Propane Gas ..............................................................................................................................14
Burner Features.....................................................................................................................14-15
VNG Control Panel .....................................................................................................................16
VNG Control Panel Parts List......................................................................................................17
VNG-S ExplodedView, Left Side ................................................................................................18
VNG-S ExplodedView, Right Side ..............................................................................................19
VNG-S Parts List ...................................................................................................................20-21
VNG-L ExplodedView, Left Side.................................................................................................22
VNG-L ExplodedView, Right Side ..............................................................................................23
VNG-L Parts List................................................................................................................... 24-25
CONTENTS

ModelNumber ______________________________
SerialNumber ______________________________
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.
CONTENTS
3
VNG/VLP Manual •Form #96-610 •Revised 7/01
VNG-L Burner Assembly ............................................................................................................26
VNG-L Burner Assembly Parts List.............................................................................................27
VNG6-3000 Pump Assembly ExplodedView and Parts List ..................................................28-29
VNG Electrical Box .....................................................................................................................30
VNG Electrical Box Parts List .....................................................................................................31
VNG Remote Electrical Box........................................................................................................32
Troubleshooting .....................................................................................................................33-37
Basic Facts .................................................................................................................................38
Pressure Equivalents ..................................................................................................................38
Burner Specifications ..................................................................................................................39
Preventative Maintenance Schedule ...........................................................................................40
Oil Change Record .....................................................................................................................40
Warranty .....................................................................................................................................41

4 VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
INTRODUCTION
Thank you for purchasing a Landa PressureWasher.
This manual covers the operation and maintenance of
the VNG/VLP3-11021D, 3-11021D/R, 4-20021A, 4-
20021A/R, 4-20021B, 4-20021B/R, 4-20021C, 4-
20021C/R,4-20021F,4-20021F/R,4-30021A,4-30021A/
R, 4-30021B, 4-30021B/R, 4-30021C, 4-30021C/R, 4-
30021F, 4-30021F/R,6-30021B,6-30021B/R,6-30021C,
6-30021C/R, 6-30021F, 6-30021F/R, 8-25021B,
8-25021B/R, 8-25021C, 8-25021C/R, 8-25021F, and
8-25021F/R washers. All information in this manual is
based on the latest product information available at the
time of printing.
Landa, Inc. reserves the right to make changes at any
time without incurring any obligation.
The VNG/VLP Series was designed for
maximum use of 8 hours per day, 5 days per
week.
Owner/User Responsibility:
The owner and/or user must have an understanding of
the manufacturer’s operating instructions and warnings
before using this Landapressure washer.Warning infor-
mationshould beemphasizedand understood.Ifthe op-
eratorisnot fluentin English,the manufacturer’s instruc-
tions and warnings shall be read to and discussed with
theoperatorin theoperator’snative languagebythepur-
chaser/owner, making sure that the operator compre-
hends its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’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.
IMPORTANT SAFETY
INSTRUCTIONS
WARNING:When using this ma-
chine basic precautions should
always be followed,including the
following:
WARNING:To reduce the risk of
injury, read operating instruc-
tions carefully before using.
1.Read the owner's manual thor-
oughly.Failure to follow instruc
tions could cause malfunction of the machine and
result in death, serious bodily injury and/or property
damage.
2. Know howto stopthe machineand bleedpressures
quickly.Be thoroughly familiar with the controls.
3. Stay alert — watch what you are doing.
4. All installations must comply with local codes.Con-
tact your electrician, plumber, utility company or the
selling distributor for specific details.
WARNING: Flammable liquids
cancreate fumes which can ignite
causing property damage or se-
vere injury.
5. Risk of explosion — do not
spray flammable liquids or op-
erate in an explosive location.
Operateonly whereopenflame
or torch is permitted.
WARNING: Keep water spray
away from electrical wiring or fa-
talelectricshockmayresult.Read
warning tag on electrical cord.
6. To protect the operator from
electrical shock, the machine
must be electrically grounded.
It is the responsibility of the
owner to connect this machine
to a UL grounded receptacle of proper voltage and
am-perage ratings. Do not spray water on or near
electrical components. Do not touch machine with
wet hands or while standing in water. Always dis-
connect power before servicing.
WARNING: Spray gun kicks back. Hold with both
hands.
7. Grip cleaning wand securelywith bothhands before
starting the cleaner.Failure to do this could result in
injury from a whipping wand.
WARNING: Equipment can pro-
duce a high pressure stream of
fluid that can pierce skin and its
underlying tissues,leading to se-
rious injury and possible ampu-
tation.
8. High pressure developed by
thesemachinescancause per-
sonalinjury orequipment dam-
age.Use caution when operat-
ing.Do notdirect discharge streamat people,or se-
vere injury and/or death may result.This machine is
to be used only by qualified operators.
WARNING
READ OPERATOR’S
MANUALTHOROUGHLY
PRIORTO USE.
WARNING
RISK OF EXPLOSION:
DO NOT SPRAY
FLAMMABLE
LIQUIDS.
WARNING
KEEP WATER SPRAY
AWAY FROM
ELECTRICALWIRING.
WARNING
RISK OF INJECTION
OR SEVERE INJURY
TO PERSONS. KEEP
CLEAR OF NOZZLE.

VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
5
CAUTION:Hot dischargefluid.Do
not touch or direct discharge
stream at persons.
9. Never make adjustments on
machine while in operation.
WARNING: High pressure can
cause paint chips or other par-
ticles to become airborne and fly
at high speeds.
10. Eyesafetydevicesandfootpro-
tection must be worn when us-
ing this equipment.
WARNING: Risk of asphyxiation.
Use this product in a well venti-
lated area.
11. When the machine is working,
donotcoverorplaceinaclosed
spacewhereventilationisinsuf-
ficient.
12. Machines with shut-off spray
gunshouldnotbeoperatedwith
thetriggerin the off position for
extensiveperiodsoftimeasthis
may cause damage to the
pump.
13. Protect from freezing.
14. Be certain all quick coupler fittings are secured be-
fore using pressure washer.
15. Donotallow acids,caustic, orabrasivefluids topass
through the pump.
16. Inletwatermustbe froma cold,fresh citywatersup-
ply.
17. Toreduce the risk of injury, closesupervision is nec-
essary when a machine is used near children. Do
not allow children to operate the pressure washer.
This machine must be attended during opera-
tion.
18. The best insurance against an accident is precau-
tion, and knowledge of the machine.
19. Do not operate this product when fatigued or under
the influence of alcohol or drugs. Keep operating
area clear of all persons.
20. Do not replace LP tank while machine is running.
Serious injury could result.
WARNING: Use vapor fuel only.
21.TheVLP modelsaredesigned to
run on vapor propane fuel. Do
notuseliquidfuel.Haveaquali-
fiedservicemaninstall andser-
vice your equipment.
22. Never expose a spark or flame
where there may be unburned
gas present.
23. L.P. gases are heavier than air and will spill out on
the floor.Therefore always provide adequate space
and ventilation around these machines. Install the
machine 18" above the floor.
24. Landawill notbe liableforanychanges madeto our
standard machines, or any components not pur-
chased from Landa.
25. Donot overreachorstand on unstable support.Keep
good footing and balance at all times.
26. Followmaintenanceinstructionsspecifiedin manual.
27. When making repairs disconnect from electrical
source and shut off gas valve.
28. Turn burner offand coolto 100°Fbeforeturning ma-
chine off.
WARNING: If you smell gas, shut
off the gas supply to the appli-
ance.
29. Extinguishanyopenflame,and
test all joints with a soap solu-
tion. If the odor persists, call
your gas supplier immediately.
30. Thismachine mustbeattended
during operation.
31. Not suitable for connection toType B gas vent if the
stack temperature exceeds 243° C (470° F).
32. A draft hood shall be installed if this machine is go-
ing to be permanently installed and vented to the
outside of the building.
INSTALLATION
Place machine in a convenient location providing ample
support, drainage and room for maintenance.
Location:
This machine is certified for indoor installation. Its
location should protect the machine from damaging
environmental conditions, such as wind, rain and
freezing.
1. Themachine shouldbe run ona levelsurfacewhere
it is not readily influenced by outside sources such
asstrongwinds,freezingtemperatures,rain,etc.The
machine should be located considering accessibil-
ityof thecomponents andthe refilling of detergents,
adjustments and maintenance.Normal precautions
WARNING
USE PROTECTIVE
EYEWEAR WHEN
OPERATING
EQUIPMENT.
WARNING
RISK OF
ASPHYXIATION. USE
THIS PRODUCT ONLY
IN AWELL
VENTILATED AREA.
WARNING
RISK OF FIRE OR
EXPLOSION, USE
VAPOR FUEL ONLY.
WARNING
RISK OF EXPLOSION:
IF GAS SMELL IS
PRESENT,TURN OFF
SUPPLY.
HOT DISCHARGE FLUID.
DO NOTTOUCH OR
DIRECT DISCHARGE
STREAMATPERSONS.
CAUTION

6 VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
12.00"
2.00"
High Pressure
Out 3/8"
HP Nipple
12.00" Dia.
25.00" Dia. 24.00"
Control
Panel
Chem In
5.00"
1.00"
2.00"
1.50"1.50"8.75"
5.75" 5.00" 6.00"
57.00"
Gas In
1" NPT-M
Elect. In
3/4 NPT
42.63" 5.75"
21.21"
8.75" 5.00"
Water In 3/4" GHF
69.13"
Electric
Gas
Exhaust Out
12" Dia.
44.13"
VNG6-3000, 8-2500
18.25" 3.25"
10.00" Dia.
19.50" Dia. 21.00"
Control
Panel
Chem In
5.00"
1.00"
2.00"
1.50"
1.50"
2.00"
5.25" 6.00"
47.50"
Gas In
1" NPT-M
Elect. In
3/4 NPT
36.00"
High Pressure Out
3/8" HP Nipple
5.25" 3.50"
Water In 3/4" GHF
Electric
Gas
32.25"
45.00"
Exhaust Out
10" Dia.
14.50"
VNG INSTALLATION GUIDE
VNG3-1100, 4-2000, 4-3000, 4-4000

VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
7
should be taken by operator of machine to prevent
excess moisture from reaching power machine or
electrical controls.
2. Itis recommendedthat a partition bemade between
washareaand machineto preventdirectsprayfrom
spray gun from coming in contact with machine.Ex-
cess moisture reaching pressure washer or electri-
calcontrolswillreducelifeofmachineand maycause
electrical shorts.
3. Duringinstallation ofmachine,bewareof poorly ven-
tilated locations or areas where exhaust fans may
cause an insufficient supply of oxygen. Sufficient
combustion can only be obtained when a sufficient
supply of oxygen is available for the amount of fuel
being burned. If it is necessary to install a machine
inapoorly ventilatedarea, outside freshairmayhave
to be piped to burner and a fan installed to bring air
into 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.)
AVOID SMALL LOCATIONS OR AREAS NEAR
EXHAUST FANS.
Gas Codes:
Confer with local gas company and with proper munici-
pal officials regarding any specific code or regulations
governingthe installation.Theinstallation mustconform
to local codes.
Electrical:
The machine, when installed, must be electrically
grounded in accordance with local codes. Check for
proper power supply using a volt meter;check the serial
plate for the correct requirements.
Gas Piping:
All piping must comply with local codes and ordinances
of the National Fuel Gas Code.A sediment trap or drip
leg must be installed in the supply line to the burner.
See figure 1.
A union shall be installed in the gas line adjacent to and
upstreamfromthecontrolmanifoldand downstreamfrom
the manual main shut-off valve.
A 1/8" N.P.T. plugged tapping accessible for test gauge
connection shall be installed immediately upstream of
the gas supply connection for the purpose of determin-
ing the gas supply pressure to the burner, and to pre-
vent damage to gas valve.
Ifa manualgasshut offvalveis notin thegas supplyline
within six feet of the machine and in an accessible loca-
tion, one shall be installed.
Figure 2
Figure 1
3 in. (76.2
mm)
MINIMUM
DRIP LEG
3 in. (76.2 mm)
MINIMUM
Sediment trap (drip leg) must be
installed in the supply line.
Drop Gas
Valve
Gas
Valve
1/4"Test Port
(6"-14 WC or 1/2"
PSIG)
Location of union and drip leg for connecting
conversion burner to house piping.
Control
Manifold
UNION LOCATION
3 in. (76.2 mm)
MINIMUM
Floor Level
Tee
Flow
Manual
Shut-off
Valve
1/8 in. N.P.T.
Plugged Pressure
Gauge Port
Union
Pipe Cap

8 VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
Amanual shut-off valveshall beinstalled inthe gassup-
ply line external to the appliance.See Figure 2.The gas
lineshould bea separatesupplydirect fromthe meterto
the burner. It is recommended that new pipe be used
and located so that a minimum amount of work will be
requiredinfutureservicing.Thepipingshouldbeinstalled
tobedurable,substantialandgas tight.Itshouldbe clear
and free from cutting burrs and defects in structure of
threading. Cast iron fittings or aluminum tubing should
not be used for the main gas circuit. Joint compounds
(pipe dope) should be used sparingly on male threads
only and be approved for all gases.
Propane Gas:
The following pipe sizes should be used between the
regulator and the gas valve on the burner.
Distance From Regulator Pipe Size
0 - 50' 1" 1 PS
50' - 100' 1-1/2" 1 PS
100' - 200' 1-3/4" 1 PS
Natural Gas:
The following pipe sizes should be used between the
meter and the cleaner.
Distance From Regulator Pipe Size
0 - 50' 1-1/2" 1 PS
50' - 100' 2" 1 PS
100' - 200' 2-1/2" 1 PS
Venting:
Because this machine is installed indoors, regulations
or ventilation concerns may call for a chimney or fur-
nace pipe.
When venting the machine, if the machine is to be in an
enclosed area with a stack on it, be sure the flue pipe is
the same size as the stack on the machine. Poor draft
willcausethe machinetosoot andnotoperateefficiently.
When placing the machine for installation, keep in mind
thatthe machineshould be positioned in sucha manner
that the stack will be as straight as possible and pro-
trude throughthe roofof thebuildingat a proper location
and at sufficient height to eliminate down draft.The flue
pipe of a gas fired machine should be installed with a
down draft diverter.
Input - BTU Per Hour Draft Hood & Flue Pipe Size
410,000 - 600,000 10 inch
600,000 - 750,000 12 inch
Draft Diverter:
The draft diverter (figure 4) should be installed at least
one (1) foot above the heating coil.The diverter serves
to sever the chimney effect created in all sections of flue
pipe positioned below to enhance the draft through the
burner. It also helps prevent freezing of the coil due to
wind chill factors.
Figure 4
Standard On All Machines
Whenthe pressurewasher is installed in a tightlyclosed
roomwithoutventilationopeningsto the outdoorsorother
rooms,provisionsshallbemadeforsupplyingairforcom-
bustionthroughspecial openings,one near the floor line
and the other near the ceiling, each to be sized on the
basis of one square inch or more of free area for each
1,000 BTU input per hour.See Figure 5.
When a room is of unusually tight construction and has
aventilatingfan,which maybe usedforexhausting airto
outdoors - or has a vented fireplace - it is recommended
that combustion air be supplied to the enclosed room
through intakes extending to the outside of the building
andterminating indownturned fittings,suitablyarranged
toprevent obstruction from snow orrain,and includinga
protecting screen not smaller than 1/4 inch mesh.
Figure 5
Ventilating Air Opening
1 square inch for each
1000 BTU per hour input.
Illustration showing air openings necessary
to supply air for combustion when heating
appliance is installed in an enclosed room.

VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
9
Water Source:
Water source for 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
collarbackandthen insertingitontothe discharge nipple.
Secure it by pushing the collar forward.
Attach the wand into the trigger spray gun using teflon
tape on the pipe threads to avoid leaks.
Inspection andTesting Gas Piping:
The building structure should not be weakened by in-
stalling the gas piping. The piping should not be sup-
ported 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.
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 and allowing 5 minutes to show any
movement, or by soaping each pipe connection and
watching for bubbles.If a leak is found, make the neces-
sary 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.
Afterthepipingandmeterhavebeencheckedcompletely,
purge the system of air.DO NOT bleed the air inside an
enclosed room.
The appliance and its individual shut-off valve must be
disconnected from the gas supply piping system during
the pressure testing of that system at test pressure in
excess of1/2 psig ordamage tothe gas valvewill occur.
Gas Pressure:
The ideal incoming gas pressure is 11" wc (water col-
umn) (minimum 6" wc, maximum 14" wc or 1/2 psig).
The correct operating manifold pressure for natural gas
is 3.5" wc.The operating manifold pressure for propane
gas is 11" wc. The gas valve pressure regulator can be
adjustedbetween 3"and 4" wc naturalgas or6" and 11"
wc for propane.
If the desired input rating cannot be obtained within the
above manifold pressure adjusting range, the next size
larger or smaller burner orifice should be used.
WARNING & CHECK LIST
WARNING
1. Installation or servicing of gas appliances and con-
trolsmustonly beperformed byqualifiedpersonnel.
Afterinstallation or servicing, test manualvalve, op-
erating valves, pressure regulation, and automatic
shut-off valve for proper operation.
2. Install in a suitable dry location.The machine must
be located in an area properly protected from the
weather.
3. Shut off gas and electricity before starting installa-
tion or service.Turn gas back on to test or operate.
4. DO NOT connect pressure washer before pressure
testing gas piping.Damage to gas valve may result
(6" - 14"W.C.P.or 1/2 psig).
5. DO NOT insert any object other than suitable pipe
or tubing in the inlet or outlet of the gas valve.Inter-
nal damage may occur and result in a hazardous
condition.
6. DO NOT grip gas valve body with a pipe wrench or
vise.Damage may result causing gas leakage.Use
inlet or outlet bosses or a special body wrench.
7. DO NOT short the gas valve terminals.
8. DO NOT allow any flame to impinge on the regula-
torventtubing if supplied.It mayclog and causegas
valve malfunction.
9. DO NOT use the gas cock to adjust the gas flow.
10. In case main burner fails to shut off, turn off gas
supply.
11. Keepall combustible materials away fromgas appli-
ances.DO NOT allow lint or dust to collect in burner
area.
12. Dials must only be operated by hand.Never use pli-
ers, wrenches or other tools to turn dials.
13. Leak test with a soap solution after installation or
service with the main burner on.Coat pipe and tub-
ing joints, gaskets, etc.Bubbles indicate leaks.
14. Ifthe machineis installedin an enclosed room, care
should be taken to ensure that an adequate supply
of air is available for combustion and ventilation (1
sq. inch per 1000 BTU).

10 VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
CHECK LIST BEFORE STARTING:
WARNING
HAS ELECTRONIC
SPARK IGNITION. DO
NOT ATTEMPTTO
LIGHT MANUALLY.
CAUTION: If “NO”has been checked on any of the
above questions,do not operate the machine.
CAUTION: This machine is
equipped with an electronic igni-
tion system. Lighting of the pilot
is accomplished through elec-
tronic spark ignition. Do not at-
tempttolight the appliance manu-
ally as a burn injury or electrical
shock may result.
YES NO
Has
g
as suppl
y
been inspected b
y
an authorized contractor to meet
local codes?
Is machine protected from downdraft
and excessive wind?
Is machine shielded from moisture or
water spra
y
?
Is the volta
g
e correct and are the
circuit breaker and suppl
y
cord
adequate accordin
g
to specifications
and serial plate notation?
Is the machine electricall
y
g
rounded?
Is there ample water suppl
y
?
Have all flammable liquids or
g
ases
been removed from installation
location?
Is there adequate
g
as suppl
y
for the
BTU ratin
g
of the burner?
Is incomin
g
g
as suppl
y
pressure to
machine between 6"-14" water column
inches or 1/2 psi
g
?
Has the proper
g
as re
g
ulator been
installed for pressure and volume?
Is the machine properl
y
vented to allow
adequate air flow?
Are the propane tanks lar
g
e enou
g
h,
accordin
g
to the ratin
g
of the machine,
to prevent freezin
g
?
Have
g
as lines been checked for
g
as
leaks?
Have all operators usin
g
this machine
been instructed properl
y
and have the
y
read the manual?
Has the machine been installed
accordin
g
to operator's manual
instructions?
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING
If you do not follow these instructions exactly, a fire or
explosion may result causing property damage, personal
injury or loss of life.
A. This appliance has an electronic ignition system. When
lighting the pilot, follow these instructions exactly.
B. BEFORE LIGHTING smell all around the appliance
area for gas. Be sure to smell next to the floor be-
cause some gas is heavier than air and will settle
on the floor.
FOR YOUR SAFETY
"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 fire
department.
C. Use only your hand to turn the gas control. Never
use tools. If the knob will not push in or
turn by hand, don't try to repair it; call a qualified
service technician. Forced or attempted repair may
result in a fire or explosion.
D. Do not use this appliance if any part has been under
water. Immediately call a qualified service technician
to inspect the appliance and to replace any part of
the control system and any gas control which has
been under water.

VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
11
OPERATING INSTRUCTIONS
1. STOP! Readoperator’smanual
before operating this machine.
Failure to read operation and
warning instructionsmayresult
in personal injury or property
damage.
2. Turn all switches off.
3. Reviewinstallationinstructions.
4. Connect water supply hose to
the inlet connector and turn water on.Check for wa-
ter leaks and tighten as needed.
5. Turn on the main gas supply and turn the gas valve
control knob into the “ON”position (see page 12).
6. Close the steam knob and detergent valve by turn-
ing clockwise and setting the temperature control
knob between 200°- 225°F.
7. Attachthedesiredhighpressurenozzleintothewand
quick coupler by pulling the coupler collar back and
inserting the nozzle. Secure nozzle by pushing the
coupler collar forward.
8. Turn the pump switch on and pull the trigger on the
spray gun to activate the pressure switch which will
then start the machine. When spray gun is closed
more than 15 seconds, a time delay feature will turn
the machine off.Trigger spray gun to start machine.
9. For hot water, push the burner switch to the ON po-
sitionand pullthe trigger onthe spray gun.Sparking
begins,thepilot gasignites andthen the ignitor/sen-
sorwillturnthemain burner on.Optional remote con-
trol requires the pump switch to be turned ON be-
fore the burner and detergent switches will turn on.
10. Toapply detergent, openthedetergent valvecounter
clockwise making sure that the detergent pick up
tube is in the detergent solution and not sucking air.
On optional remotes the detergent switch needs to
be turned to the OFF position then turned to the ON
position to activate the detergent solenoid.
11. To Stop: Turn the burner switch off and place the
detergent pick-up tube into fresh water. Open the
detergent valve and trigger spray gun allowing de-
tergent lines to be flushed and the burner to cool.
Otherwise, coil damage will result.
12. When steam is needed, remove the side panel and
turnthe steamknobcounterclockwise.Then turn the
temperature adjustment knob to 275°F.
13. After water has cooled, turn pump switch to OFF
position. If the machine is going to be off for an ex-
tended period of time, put the manual valve on the
gas valve into the OFF position.
14. Turn the water off. Protect from freezing.
PREVENTATIVE
MAINTENANCE
1. Checkto seethat waterpump is properly lubricated.
2. Followwinterizinginstructionstopreventfreezedam-
age to the pump and coils.
3. Always neutralize and flush detergent from system
after use.
4. Ifwateris knownto be high in mineralcontent, usea
water softener in your water system or de-scale as
needed.
5. Do not allow acidic, caustic or abrasive fluids to be
pumped through the system.
6. Alwaysusehigh gradequality Landacleaning prod-
ucts.
7. Never run pump dry for extended periods of time.
8. Periodically delime coils as per instructions.
Itisadvisable, periodically,to visuallyinspectthe burner.
Check air inlet to make sure it is not clogged or blocked.
Wipe off any oil spills and keep this equipment clean
and dry.
TheareasaroundtheLandawashershouldbekeptclean
and free of combustible materials, gasoline and other
flammable vapors and liquids.
The flow of combustion and ventilating air to the burner
must not be blocked or obstructed in any manner.
GENERAL OPERATING
TECHNIQUES
Ifdirtcomes off relativelyeasyand nogreaseand oilare
present, cleaning with cold water will normally suffice.
However, when grease and oil are present, hot water
will greatly speed up the process.
Cleanwith thespraynozzlea footor so fromthe surface
being cleaned. For more difficult cleaning, move the
nozzle in closer.
If the machine is equipped with a shut-off spray gun and
various nozzle patterns, use the wide patterns for easy
soil removal jobs and the narrow patterns on the more
difficult jobs or for tight areas such as cracks and holes.
Inmostcases,fasterresultsandbetterdetergenteconomy
will be obtained by applying the detergent and letting it
“set”for a few minutes prior to rinsing. This enables the
detergent to do its soil penetrating and loosening work.
Mostcleaningwork terminateswith a highpressurerinse
aspartofthe normal cleaningprocedure.In somecases,
however, the last operation may be application of a de-
tergentor detergent(sanitizing, forexample).After such
work, run the machine for 20-30 seconds to clear pump
and lines.
WARNING
READ OPERATOR’S
MANUALTHOROUGHLY
PRIORTO USE.

12 VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
Side Panel
Spray Gun
Draft Diverter
High
Pressure
Nozzle &
Coupler
Water Supply Hose
(Not Included)
High Pressure Hose
Variable Pressure
Control Handle
Trigger
Voltage Light
Pump Light
Pressure
Gauge
Adjustable
Thermostat
Unloader / Steam
Valve
Water
Supply
Inlet
Downstream
Detergent
Injector
Burner Switch
Hour Meter
Pump
Switch
High
Pressure
Nozzles
Detergent Bucket
(not included)
COMPONENT IDENTIFICATION
VNG-LW/O REMOTE
Detergent
Valve

VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
13
MAINTENANCE AND SERVICE
Spray Nozzles
Each machine is equipped with one or more spray
nozzles, depending on model. Different spray nozzles
are calibrated for each machine depending on the flow
andpressureof that particularmodel.Spray nozzles vary
inbore sizeandangle ofspray.Popular sprayangles are
0°,15°,25°,40°.Whenordering, please specifysizeand
angleof nozzle.Nozzle sizeforeach machine is located
on the serial plate.
Unloader Valves:
Unloader valves relieve pressure in the line when the
shut-off spray gun is closed.Unloader valves are preset
andtested at thefactory before shipping.Occasionalad-
justment of the unloader may be necessary to maintain
correctpressure.
Winterizing Procedure:
Damage due to freezing is not covered by warranty.Ad-
hereto thefollowing coldweather procedures whenever
the washer must be stored or operated outdoors under
freezing conditions.
During winter months, when temperatures drop below
32°F, protecting your machine against freezing is nec-
essary. Siphoning a small amount of antifreeze into the
systemis recommended.Thisis donebypouringa 50:50
mix of antifreeze and water into the float tank and then
siphoning100%antifreezethrough thedetergentlinewith
the pump on.If compressed air is available, an air fitting
can be screwed into the float tank strainer fitting and by
injecting compressed air, all water will be blown out of
the system. The use of a draft diverter will prevent the
wind chill factor from freezing the coil.
Low Pressure Diagnosis
(Machines with shut-off spray gun)
Refer to the Troubleshooting Chart for low pressure. If,
after referring to the chart, the trouble is found to be ei-
therthe unloaderor the pump,yournext stepis to deter-
mine which one is the problem. This can be done by
eliminating the unloader from the system and attaching
a 50' charge hose directly to the pump.If high pressure
is developed in this manner the pump is good, and the
unloader needs to be repaired or replaced. If low pres-
sureisstill present thepumpneeds repairing.CAUTION:
When using this procedure to test components, keep
the shut-off spray gun open at all times.
High Limit HotWaterThermostat:
For safety, each machine is equipped with a high limit
control switch.In the event the temperature of the water
should exceed its operating temperature, the high limit
control will turn the burner off until the water cools.
Pumps:
Use only SAE 30 weight non-detergent oil. Change oil
after first 50 hours of use.Thereafter, change oil every
threemonths orat 500hour intervals.Oil levelshould be
checked through use of the dipstick found on the top of
the pump or by the red dot visible through the oil gauge
window.Oil should be maintained at that level.
HEATING COIL
Condensation from Heating Coil
When cold water is being pumped into the water heater
coil, and the burner is on, condensation will form on the
coil and drip down into the burner compartment, giving
theappearance of a leakingcoil, particularly on coldhu-
mid days.
To CheckWater Heater Coil for Leaks:
Withthe mainburner“OFF”start machineand allowit to
run a few minutes. Check into the burner compartment
with a drop light or flashlight.If no leaks are visible, then
water dripping from coil is from condensation.
Deliming Coil:
Periodic coil deliming is recommended.
1. Filla containerwith 4gallons ofwater,then add1 lb.
of deliming powder.Mix thoroughly.
2. Remove nozzle from spray gun assembly and put
spray gun into container.
3. Attach a short section (3-5 ft.) of garden hose to
machine to siphon solution from an elevated con-
tainer or add mixture to the float tank. Turn pump
switch on allowing solution to be pumped through
coil and back into the container. Solution should be
allowed to circulate 2-4 hours.
4. After circulating solution flush entire system with
fresh water. Reinstall nozzle in spray gun.
GASVALVE REGULATOR
ADJUSTMENT
Adjustmentof thebuilt-in regulatorisn’t normally neces-
sary, since it is preset at the factory. However, field ad-
justment may be accomplished as follows:
1. Attach manometer at pressure tap port.
2. Remove regulator adjustment screw cap.

14 VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
3. Withasmallscrewdriver, rotate theadjustmentscrew
clockwise to increase or counterclockwise to de-
crease gas pressure.
4. Replace regulator adjustment screw cap (see Fig-
ure 6, next page).
Figure 6
In alkaline water areas, lime deposits can accumulate
rapidly inside the coil pipes.This growth is increased by
the extreme heat build up in the coil.The best preventa-
tive for liming conditions is to use high quality cleaning
detergents.In areas where alkaline water is an extreme
problem, periodic use of Landa Deliming Powder will re-
move lime and other deposits before coil becomes
plugged. (See Deliming Instructions for use of Landa
Deliming Powder.)
Pressure Relief Valve
Each machine is equipped with a relief valve to relieve
pressurein thesystem when higherthan normally oper-
ating pressures are encountered. If operating pressure
of machine is found to be normal and relief valve contin-
ues to leak, repair or replace the valve. CAUTION: Re-
lief valve can become obstructed by deposits and must
be unscrewed at least once per year to allow discharge.
PROPANE GAS
General Safety Precautions
Have a qualified gas service person assist in any gas
burner installation or service.Few maintenance people
or mechanics are knowledgeable in gas controls or re-
lated safety practices. Propane gas is heavier than air;
unburned propane gas will gravitate to the floor rather
than rise out of the stack. Hence, adequate floor space
and good ventilation are especially important with pro-
pane systems.
Gas Pressure Requirements
All propane fired machines operate on vapor propane
fuel only.They are designed to operate at a pressure of
11" w.c.(between 1/3 and 1/2 of one psi), and are often
operated at even higher pressures when extra heat is
needed.
Exteriorregulators are neededtocontrolthesystem.Pro-
pane bottles are not included with the machine. A high
pressure regulator should be installed on the propane
bottleand alow pressure regulator attached to thepres-
sure washer.
Propane Cylinder Capacity
An important consideration with propane systems is the
capacity of the supply cylinder relative to the needs of
the burner.The burner operates on propane as a vapor
gas.As gas is used from the propane cylinder, the liquid
inthe cylinderboils tomaintain vaporgaspressure.This
boiling process cools the liquid, and in a heavy, continu-
ous-demand situation, the liquid temperature can fall to
the point at which it cannot provide vapor gas as rapidly
as is needed.In this case, it may be necessary to warm
the propane cylinder by directing a warm spray, not over
120°F, on the cold cylinder or by manifolding two pro-
pane bottles together to increase total vaporization ca-
pacity. It is recommended that a minimum 100 lb.vapor
propane bottle be used on the machine, depending on
the length of running time desired.
BURNER FEATURES
Operated Automatic Valve
This machine is equipped with an Intermittent Pilot Igni-
tion System. This system is designed to eliminate the
need for a constant burning pilot.Lighting of the pilot is
accomplishedthroughelectronicsparkignitioneach time
the burner and flow switch call for heat.The pilot is not
burning when there is no call for heat.Do not attempt to
lightthe appliancemanually as a burninjury orelectrical
shock may result.The pilot light will remain on and the
maingasvalveisturnedoff whenthespraygunis closed.

VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
15
Care of Main Burner
Dueto condensationfrom heatercoils dripping downon
the burners, scale build-up may occur in the burner jet
orifices.
1. TO REMOVE BURNER MANIFOLD FROMWATER
HEATER COIL:
Turn off the gas to the main burner by turning the
knob to the “OFF”position on the gas valve and the
main gas supply.
Disconnect the pilot and ignition lines from the gas
valve. Disconnect union in main burner line below
thermostat. Slide burner manifold out through shell
opening.
2. TO CLEAN BURNER JETS:
Selectproper sizedrill for typegas involved.Use pin
vise to hold drill and ream out each jet orifice.
CAUTION: Do not ream out orifices to a larger size.
If the water heater will be exposed to freezing weather,
an anti-freeze solution should be circulated through the
coil by whatever means are available for the particular
system the water heater is used on.
To Adjust Pressure Regulator
Adjustmentofthe pressureregulatoris not normally nec-
essary since it is preset at the factory. However, field
adjustment may be accomplished as follows:
1. Manometerattachment maybeaccomplished atthe
pressure tap plug.
2. Remove regulator adjustment screw cap (see Fig-
ure 6, page 14).
3. With small screwdriver, rotate adjustment screw
“clockwise”toincrease,or“counterclockwise”to de-
crease pressure.
4. Replace regulator adjustment screw cap.

16 VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
20
19
12
14
15
2
6
77
1
3
16 18
18
18
17
5
16
45
6
9
13
16
16
9
22 23
To Unloader Detergent
Line to
Pump Inlet
Detergent
Inlet Line
7
21
Detergent Remote
Operating System
10
11
25
24 8
17
17
Detergent Remote
Operating System
VNG CONTROL PANEL
ALL MODELS
26
27
18

VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
17
VNG CONTROL PANEL
ALL MODELS PARTS LIST
ITEM PART NO. DESCRIPTION QTY
1 4-05088 Thermostat, General, 302 Deg 1
2 2-0026 Elbow, 1/4" Female Pipe 1
3 4-02021236 Hose, 1/4" x 36", 2 Wire
Gauge Hose (S) 1
4-02021242 Hose, 1/4" x 42",
2 Wire Gauge Hose (L) 1
4 95-07163038 Support, Metering Valve, VNG 1
5 2-9000 Clamp, Screw #4 2
6 2-1089 Hose Barb,
1/4" Barb x 1/4" Pipe 90°2
7 2-3015 Valve, Control Metering 1
8 6-2023 Switch, 2 Position CH,
Auto Start Option 1
6-2021 Switch Green, Push Button 1
9 6-020530 Light, Indicator, Green, 125V 2
10 6-020251 Switch, Curvette (Burner) 1
11 4-050822 Hour Meter 115V 1
12 2-1003 Nipple, 1/4" Hex 1
13 10-2031100 Label 3-1100 1
10-2031500 Label 3-1500 1
10-204200 Label 4-2000 1
10-204300 Label 4-3000 1
10-206300 Label 6-3000 1
10-2082500 Label 8-2500 1
14 6-140160 Solenoid Coil, 120V (Remote) 1
15 6-1401590 Valve, Chem Less Coil
(Remote) 1
16 6-2020 Switch, Selec CH (Remote) 3
17 6-2001 Block, Contact CH N/O
(Remote) 3
ITEM PART NO. DESCRIPTION QTY
18 6-2000 Block, Contact CH N/C
(Remote) 3
19 95-07163058 Panel, Control, VNG Small 1
95-07163012 Panel, Control, VNG Large 1
20 10-020VNG Label VNG Lexan 1
21 10-99015 Label, VNG Control Panel 1
10-99031 Label, VNG Control Panel
Remote 1
22 4-12805500 Nozzle, 0005.5 Red
(3-1100) 1
4-12804000 Nozzle, 0004 Red (4-3000) 1
4-12806000 Nozzle, 0006 Red
(4-2000, 6-3000) 1
4-12810000 Nozzle 0010 Red (8-2500) 1
23 4-12805515 Nozzle 15055 Yellow
(3-1100) 1
4-12804015 Nozzle 1504 Yellow (4-3000) 1
4-12806015 Nozzle 1506 Yellow
(4-2000, 6-3000) 1
4-12810015 Nozzle 1510 Yellow (8-2500) 1
24 4-12805525 Nozzle 2505.5 Green,
(3-1100) 1
4-12804025 Nozzle 2504 Green (4-3000) 1
4-12806025 Nozzle 2506 Green
(4-2000, 6-3000) 1
4-12810025 Nozzle 2510 Green (8-2500) 1
25 4-12805540 Nozzle 4005.5 White
(3-1100) 1
4-12804040 Nozzle 4004 White (4-3000) 1
4-12806040 Nozzle 4006 White
(4-2000, 6-3000) 1
4-12810040 Nozzle 4010 White (8-2500) 1
26 4-05035 Guage 0-5000 PSI VNG 1
27 6-2022 Switch Red, Push Button 1

18 VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
VNG-S EXPLODED VIEW,3-1100 •4-2000 •4-3000 •4-4000
LEFT SIDE
For Detail
See
Electrical
Box Illus.
To
Detergent
Valve
39
24
3
1
25
5
37
38
35 36
40
41
40
41
21
34
33
27
95
21
10
10
9
6
31
28
8
7
5
68
7
28 30 12 15
16
32
30
30 14
30
11
For Detail
See
Electrical
Box Illus.
20 21
25 18
19 24
23
26
25
22
17

VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
19
VNG-S EXPLODED VIEW,3-1100 •4-2000 •4-3000 •4-4000
RIGHT SIDE
45
Remote
Control
Box
54
80
29
27
53
52
44
42
43
29
50
51
49
94
46
55
56
57
60
58
59
90
86
83
81
82
86
91
87
63
84
61
85
92
88
86
89
64
62 65
66
29
71
69
68
67
72
74
75
To Pressure
Gauge
48
47
77 78 76
70
96
79
93
73

20 VNG/VLP SERIES PRESSUREWASHER OPERATOR’S MANUAL
VNG-S EXPLODED VIEW,3-1100 •4-2000 •4-3000 •4-4000
PARTS LIST
ITEM PART NO. DESCRIPTION QTY
1 95-07163062 Panel, Side VNG-S 2
2 90-50033 Latch, Vise Action 4
3 2-011041 Trim w/Sponge /Ft. 42
4 95-07163057 Panel, Top VNG-S 1
5 90-2022 Nut, Cage, 1/4" x 16 Ga. 4
6 95-0763034 L-Bracket, VNG 4
7 90-1001 Bolt, 1/4" x 3/4" NC HH 22
8 90-4000 Washer, 1/4" Flat SAE 22
9 95-07163032 Brace, VNG Elec Box 1
10 2-3014 Valve, Fluidmaster 400A 2
11 2-01164 Tank, Plastic, Universal Float 1
12 2-0151 Plug, Float Tank 1
13 2-1053 Nipple, 1/2" JIC x 1/2" Pipe 4
14 2-1906 Strainer, 1/2" Basket 1
15 2-010050 Bulkhead, 3" Ft x FT 1
16 2-0100379 Adapter, 3/4" x 3/4" MT x Insert,
90 DGR 1
17 4-02120000 Hose, 3/4" Push-on /Ft. 3
18 4-02100045 Inlet Hose, 45", Water Supply 1
19 4-02100030 Inlet Hose, 30", Water Supply 1
20 4-02110000 Hose, 1/2" Push-on /Ft. 3
21 2-1105 Swivel, 1/2" JIC Fem, Push-on 4
22 2-1089 Hose Barb, 1/4" Barb x 1/4"
Pipe 90 DGR 1
23 2-1041 Tee, 3/8" Street 3
24 2-1062 Elbow, 1/2" JIC x 1/2"
Pipe 90 DGR 3
25 2-1108 Push-ON, 3/8" Male Pipe 1
26 2-1076 Bushing, 1/2" x 1/4" Brass 1
27 2-1060 Elbow, 1/2" JIC x 3/8" 90 DGR 2
2-0053 Elbow, 1/2" JIC x 3/8" 90 DGR 2
28 90-19942 Screw, 10/32" x 3/4" HEX 4
29 2-0054 Elbow, 1/2" JIC x 1/2" 90 DGR 2
30 90-017 Nut, 10/32" KEPS 3
31 95-07163028 Box Elec.VNG 1
32 2-0147 Plug Overflow 2
33 5-3208 Unloader AL 607, 7.8 GPM 1
5-3206 Unloader, Pulsar 280 w/Switch,
Auto Start Option 1
ITEM PART NO. DESCRIPTION QTY
34 5-1047 Motor 2 HP, 1 PH, 3-11 1
5-10401 Motor 6 HP 1 PH, 4-2A 1
5-1011 Motor 6 HP 3 PH, 4-2B, C 1
5-1027 Motor 5 HP 3 PH 575V, 4-2F 1
5-1013 Motor 7.5 HP 1 PH, 4-3A 1
5-10145 Motor 7.5 HP 3 PH, 4-3B, C 1
5-10146 Motor 7.5 HP 3 PH 575V, 4-3F 1
5-10402 Motor 6 HP 1 PH,
1800 RPM 200V, 4-2G 1
5-10111 Motor 6 HP 1 PH,
1800 RPM 200V, 4-2H 1
5-10144 Motor 7.5 HP 3 PH, 200V, 4-3H 1
5-10131 Motor 7.5 HP 1 PH, 200V, 4-3G 1
5-1025 Motor 15 HP 3 PH, 4-4 1
35 5-40102858 Pulley, Bore, AK28 x 5/8, 3-11 1
5-40205401 Pulley, 2AK 54H, 4-2 1
5-40504501 Pulley, 2BK, 45H, 4-3 1
5-406050 Pulley, 2TB 50H, 4-4 1
36 5-40108401 Pulley, AK 84H, 3-11 1
5-40208401 Pulley, 2AK 84H, 4-2 1
5-40508001 Pulley, 2BK 80H, 4-3 1
5-40505001 Pulley, 2BK 50H, 4-4 1
37 5-512024 Bushing, 24mm 1
38 5-511113 Bushing, H x 1-1/8", 4-2 1
5-511138 Bushing, H x 1-3/8", 4-3 1
39 5-601035 Belt A-35, 3-11 1
5-602037 Belt AX-37, 4-2 2
5-604036 Belt, BX-36, 4-3 2
40 90-2002 Nut, 3/8" ESNA 8
41 90-4002 Washer, 3/8" Flat, SAE 16
42 2-0008 Nipple, 1/2" Hex, Steel 1
43 95-07101226 Block, Discharge, Brass
1/2" x 1/2" 1
44 4-05088 Thermostat, General 302 DGR 1
45 95-07121220 Coil, Dura 20" Dia, Sch 80 1
46 2-0028 Elbow 1/2" 90 DGR Fem.Pipe 1
47 2-1022 Elbow 1/4" Street 1