VNG
VLP
P R E S S U R E WA S H E R S
P L A T I N U M
S E R I E S
OPERATOR’S MANUAL
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VNG/VLP3-11021D
VNG/VLP3-11021D/R
VNG/VLP4-20021A
VNG/VLP4-20021A/R
VNG/VLP4-20021B
VNG/VLP4-20021B/R
VNG/VLP4-20021C
VNG/VLP4-20021C/R
VNG/VLP4-20021F
VNG/VLP4-20021F/R
LIS T E D
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VNG/VLP4-30021A
VNG/VLP4-30021A/R
VNG/VLP4-30021B
VNG/VLP4-30021B/R
VNG/VLP4-30021C
VNG/VLP4-30021C/R
VNG/VLP4-30021F
VNG/VLP4-30021F/R
VNG/VLP6-30021B
VNG/VLP6-30021B/R
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VNG/VLP6-30021C
VNG/VLP6-30021C/R
VNG/VLP6-30021F
VNG/VLP6-30021F/R
VNG/VLP8-25021B
VNG/VLP8-25021B/R
VNG/VLP8-25021C
VNG/VLP8-25021C/R
VNG/VLP8-25021F
VNG/VLP8-25021F/R
®
LANDA, INC. ■ 4275 NW 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 (360) 833-9100
or consult our web page at www.landa-inc.com
CONTENTS
Introduction ................................................................................................................................ 5
Important Safety Information ..................................................................................................... 5
Installation ............................................................................................................................. 5-11
Location .............................................................................................................................. 6
Installation Guide ................................................................................................................ 7
Gas Codes .......................................................................................................................... 8
Electrical ............................................................................................................................. 8
Gas Piping .......................................................................................................................... 8
Propane Gas....................................................................................................................... 8
Natural Gas ......................................................................................................................... 9
Venting ................................................................................................................................ 9
Draft Diverter ...................................................................................................................... 9
Water Source ...................................................................................................................... 9
Water Connection ............................................................................................................... 9
Inspecting & Testing Gas Piping ....................................................................................... 10
Gas Pressure .................................................................................................................... 10
Warning and Check Lists ............................................................................................. 10-11
Operating Instructions .............................................................................................................. 12
Preventative Maintenance ........................................................................................................ 12
General Operating Techniques................................................................................................. 12
Component Identification .................................................................................................... 13-14
Maintenance & Service ............................................................................................................ 15
Spray Nozzles ................................................................................................................... 15
Unloader Valves ................................................................................................................ 15
Winterizing Procedures..................................................................................................... 15
Low Pressure Diagnosis ................................................................................................... 15
High Limit Hot Water Thermostat ...................................................................................... 15
Pumps............................................................................................................................... 15
Heating Coil .............................................................................................................................. 15
Condensation from Heating Coil ....................................................................................... 15
Check Water Heater Coil for Leaks ................................................................................... 15
Deliming Coil ................................................................................................................ 15-16
Gas Valve Regulator Adjustment ............................................................................................. 16
Pressure Relief Valve ........................................................................................................ 16
Propane Gas ............................................................................................................................ 16
CONTENTS
Burner Features ....................................................................................................................... 16
Operated Automatic Valve ................................................................................................ 16
Care of Main Burner .................................................................................................... 16-17
To Clean Burner Jets ......................................................................................................... 17
VNG Control Panel ................................................................................................................... 18
VNG Control Panel Parts List ................................................................................................... 19
VNG-L Exploded View, Left Side .............................................................................................. 20
VNG-L Exploded View, Right Side ........................................................................................... 21
VNG-L Parts List ................................................................................................................ 12-23
VNG-L Burner Assembly .......................................................................................................... 24
VNG-L Burner Assembly Parts List.......................................................................................... 25
VNG-S Exploded View, Left Side ............................................................................................. 26
VNG-S Exploded View, Right Side ........................................................................................... 27
VNG-S Parts List ................................................................................................................. 28-30
VNG6-3000 Pump Assembly ................................................................................................... 31
Variable Pressure Wand #4-011142A ...................................................................................... 32
Variable Pressure Wand #4-011143A ...................................................................................... 33
VNG Electrical Box ................................................................................................................... 34
VNG Electrical Box Parts List................................................................................................... 35
VNG Remote Electrical Box ..................................................................................................... 36
Troubleshooting ................................................................................................................... 37-41
Burner Specifications ............................................................................................................... 42
Basic Facts ............................................................................................................................... 43
Pressure Equivalents ............................................................................................................... 43
Preventative Maintenance Schedule ........................................................................................ 44
Oil Change Record................................................................................................................... 44
Warranty ................................................................................................................................... 45
Model Number _____________________________
Serial Number _____________________________
Date of Purchase ___________________________
The model and serial numbers will be found on a
decal attached to the pressure washer. You should
record both serial number and date of purchase and
keep in a safe place for future reference.
VNG/VLP Manual • Form #96-610 • Revised 5/99
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
INTRODUCTION
Thank you for purchasing a Landa Pressure Washer.
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, 420021F, 4-20021F/R, 4-30021A, 4-30021A/R, 4-30021B,
4-30021B/R, 4-30021C, 4-30021C/R, 4-30021F, 430021F/R, 6-30021B, 6-30021B/R, 6-30021C, 6-30021C/
R, 6-30021F, 6-30021F/R, 8-25021B, 8-25021B/R, 825021C, 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 commercial duty 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 Landa 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.
This manual should be considered a permanent
part of the machine and should remain with it if
unit is resold.
When ordering parts, please specify model and serial
number.
IMPORTANT SAFETY
INSTRUCTIONS
WARNING: To reduce the risk of injury, read operating instructions
carefully before using.
1. Read the owner's manual thoroughly. Failure to follow instructions
could cause malfunction of the unit
READ OPERATOR’S
and result in death, serious bodily
MANUAL THOROUGHLY
injury and/or property damage.
PRIOR TO USE.
2. All installations must comply with
local codes. Contact your electrician, plumber, utility
company or the selling distributor for specific details.
WARNING
WARNING
RISK OF EXPLOSION:
DO NOT SPRAY
FLAMMABLE
LIQUIDS.
5
WARNING: Flammable liquids can
create fumes which can ignite causing property damage or severe injury.
3. Risk of explosion - do not spray
flammable liquids or operate in an
explosive location. Operate only
where open flame or torch is permitted.
WARNING: Keep water spray away
from electrical wiring or fatal electric shock may result. Read warning tag on electrical cord.
4. To protect the operator from electrical shock, the machine must be
electrically grounded. It is the reKEEP WATER SPRAY
AWAY FROM
sponsibility of the owner to connect
ELECTRICAL WIRING.
this machine to a UL grounded receptacle of proper voltage and amperage ratings. Do not spray water on or near electrical components. Do not touch machine with wet hands
or while standing in water. Always disconnect power
before servicing.
WARNING: Gun kicks back. Hold with both hands.
5. Grip cleaning wand securely with both hands before
starting the cleaner. Failure to do this could result in
injury from a whipping wand.
WARNING: Equipment can produce
WARNING a high pressure stream of fluid that
can pierce skin and its underlying
tissues, leading to serious injury
and possible amputation.
6. High pressure developed by these
HIGH PRESSURE
units can cause personal injury or
STREAM CAN
equipment damage. Use caution
PIERCE SKIN AND
TISSUES.
when operating. Do not direct discharge stream at people, or severe
injury and/or death may result. This machine is to be
used only by qualified operators.
7. Never make adjustments on machine while in operation.
WARNING: High pressure can cause
WARNING paint chips or other particles to become airborne and fly at high
speeds.
8. Eye safety devices and foot protection must be worn when using this
USE PROTECTIVE
equipment.
EYEWEAR WHEN
WARNING
OPERATING
EQUIPMENT.
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
WARNING: Risk of asphyxiation.
Use this product in a well ventilated
area.
9. When the unit is working, do not
cover or place in a closed space
where ventilation is insufficient.
RISK OF
10. Units with shut-off gun should not
ASPHYXIATION. USE
THIS PRODUCT ONLY
be operated with the trigger in the
IN A WELL
off position for extensive periods
VENTILATED AREA.
of time as this may cause damage to the pump.
11. Protect from freezing.
12. Be certain all quick coupler fittings are secured before using pressure washer.
13. Do not allow acids, caustic, or abrasive fluids to pass
through the pump.
14. Inlet water must be cold.
15. Do not allow CHILDREN to operate the pressure
washer at any time.
16. The best insurance against an accident is precaution,
and knowledge of the machine.
17. Do not operate this product when fatigued or under
the influence of alcohol or drugs. Keep operating area
clear of all persons.
18. Do not replace LP Tank while unit is running. Serious
injury could result.
WARNING: Use vapor fuel only.
WARNING 19. The VLP models are designed to
run on vapor propane fuel. Do not
use liquid fuel. Have a qualified
serviceman install and service
your equipment.
20. Never expose a spark or flame
RISK OF FIRE OR
where there may be unburned
EXPLOSION, USE
gas present.
VAPOR FUEL ONLY.
21. L.P. gases are heavier than air
and will spill out on the floor. Therefore always provide
adequate space and ventilation around these units.
Install the machine 18” above the floor.
22. Landa will not be liable for any changes made to our
standard units, or any components not purchased from
Landa.
23. Do not overreach or stand on unstable support. Keep
good footing and balance at all times.
24. Follow the maintenance instructions specified in the
manual.
25. When making repairs disconnect from electrical source
and shut off gas valve.
26. Turn burner off and cool to 100° before turning machine off.
WARNING
6
WARNING: If you smell gas, shut off
the gas supply to the appliance
27. Extinguish any open flame, and
test all joints with a soap solution.
If the odor persists, call your gas
RISK OF EXPLOSION:
supplier immediately.
IF GAS SMELL IS
PRESENT, TURN OFF 28. This machine must be attended
SUPPLY.
during operation.
29. Not suitable for connection to Type B gas vent if the
stack temperature exceeds 243° C (470° F).
30. A draft hood shall be installed if this machine is going
to be permanently installed and vented to the outside
of the building.
WARNING
INSTALLATION
Place machine in a convenient location providing ample
support, draining 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. The machine should be run on a level surface where
it is not readily influenced by outside sources such as
strong winds, freezing temperatures, rain, etc. The unit
should be located considering accessibility of the components and the refilling of detergents, adjustments
and maintenance. Normal precautions should be taken
by the operator of the unit to prevent excess moisture
from reaching the power unit or electrical controls.
2. It is recommended that a partition be made between
the wash area and the machine to prevent direct spray
from the gun from coming in contact with the machine.
Excess moisture reaching the pressure washer or the
electrical controls will reduce the life of the unit and
may cause electrical shorts.
3. During installation of the unit, 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 unit in a poorly
ventilated area, outside fresh air may have to be piped
to the burner and a fan installed bringing 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 unit.
Local code will require certain distances from floor
and walls. (Two feet away should be adequate.)
AVOID SMALL LOCATIONS OR AREAS NEAR EXHAUST FANS.
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
VNG Installation Guide
7
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
8
Figure 2
Gas Codes:
Confer with local gas company and with proper municipal
officials regarding any specific code or regulations governing the installation. The installation must conform to
local codes.
manual
shut off valve
1/8 in. N.P.T. plugged
pressure gauge port
Electrical:
The unit, 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.
union
flow
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.
Figure 1
control manifold
tee
3 in. (76.2 mm)
MINIMUM
1/4 in. test port
(6 in. - 14 W.C.
or 1/2 PSIG)
pipe cap
gas
valve
floor level
UNION LOCATION
drop
riser
horizontal
gas
valve
3 in. (76.2 mm)
MINIMUM
3 in. (76.2 mm)
MINIMUM
DRIP LEG
sediment trap (drip leg) must be
installed in the supply line.
A union shall be installed in the gas line adjacent to and
upstream from the control manifold and downstream from
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 determining the
gas supply pressure to the burner, and to prevent damage to gas valve
If a manual gas shut off valve is not in the gas supply line
within six feet of the machine and in an accessible location, one shall be installed.
location of union and drip leg for connecting
conversion burner to house piping.
A manual shut-off valve shall be installed in the gas supply line external to the appliance. See Figure 2. The gas
line should be a separate supply direct from the meter to
the burner. It is recommended that new pipe be used and
located so that a minimum amount of work will be required
in future servicing. The piping should be installed to be
durable, substantial and gas tight. It should be 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
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
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 furnace
pipe.
When venting the unit, 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 will
cause the unit to soot and not operate efficiently. When
placing the unit for installation, keep in mind that the unit
should be positioned in such a manner that the stack will
be as straight as possible and protrude through the roof
of the building at a proper location and at sufficient height
to eliminate down draft. The flue pipe of a gas fired unit
should be installed with a down draft diverter.
Input - BTU Per Hour
Draft Hood & Flue Pipe Size
250,000 - 320,000
8 inch
320,000 - 410,000
9 inch
410,000 - 600,000
10 inch
600,000 - 750,000
12 inch
Draft Diverter:
The draft diverter 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
9
When the pressure washer is installed in a tightly closed
room without ventilation openings to the outdoors or other
rooms, provisions shall be made for supplying air for combustion through special 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 a
ventilating fan, which may be used for exhausting air to
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
and terminating in downturned fittings, suitably arranged
to prevent obstruction from snow or rain, and including a
protecting screen not smaller than 1/4 inch mesh.
Figure 5
ventilating air opening
1 square inch for each
4000 BTU per hour input.
Illustration showing air openings necessary to
supply air for combustion when heating
appliance is installed in an enclosed room.
Water Source:
Water source for unit 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 unit 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 trigger gun using teflon tape on
the pipe threads to avoid leaks.
standard on all machines
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
Inspection and Testing Gas Piping:
WARNING & CHECK LIST
The building structure should not be weakened by installing 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.
Before turning gas under pressure into piping, all openings from which gas can escape should be closed. Immediately after turning on gas, the system should be checked
for leaks. This can be done by watching the 1/2 cubic foot
test dial 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 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 completely,
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 of 1/2 psig or damage to the gas valve will occur.
WARNING
Gas Pressure:
The ideal incoming gas pressure is 11" wc (water column)
(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 adjusted
between 3" and 4" wc natural gas or 6" 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.
10
1. Installation or servicing of gas appliances and controls must only be performed by qualified personnel.
After installation or servicing, test manual valve, operating valves, pressure regulation, and automatic
shut-off valve for proper operation.
2. Install in a suitable dry location. The unit must be located in an area properly protected from the weather.
3. Shut off gas and electricity before starting installation
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. Internal
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 regulator
vent tubing if supplied. It may clog and cause gas 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. Keep all combustible materials away from gas appliances. DO NOT allow lint or dust to collect in burner
area.
12. Dials must only be operated by hand. Never use pliers, 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 tubing
joints, gaskets, etc. Bubbles indicate leaks.
14. If the unit is installed in 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).
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
CHECK LIST BEFORE STARTING:
YES
FOR YOUR SAFETY READ BEFORE LIGHTING
NO
WARNING
Has gas supply been inspected by
an authorized contractor to meet
local codes?
If you do not follow these instructions exactly, a fire or
explosion may result causing property damage, personal
injury or loss of life.
Is unit protected from downdraft and
excessive wind?
A. This appliance has an electronic ignition system. When
lighting the pilot, follow these instructions exactly.
Is unit shielded from moisture or
water spray?
B. BEFORE LIGHTING smell all around the appliance
area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle
on the floor.
Is the voltage correct and are the
circuit breaker and supply cord
adequate according to specifications
and serial plate notation?
Is the unit electrically grounded?
Is there ample water supply?
Have all flammable liquids or gases
been removed from installation
location?
Is there adequate gas supply for the
BTU rating of the burner?
Is incoming gas supply pressure to
unit between 6"-14" water column
inches or 1/2 psig?
Has the proper gas regulator been
installed for pressure and volume?
Is the unit properly vented to allow
adequate air flow?
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 tur n 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.
WARNING
Are the propane tanks large enough,
according to the rating of the unit, to
prevent freezing?
Have gas lines been checked for gas
leaks?
Have all operators using this unit
been instructed properly and have
they read the manual?
Has the unit been installed according
to operator's manual instructions?
CAUTION: If “NO” has been checked on any of the above questions,
do not operate the unit.
11
HAS ELECTRONIC
SPARK IGNITION. DO
NOT ATTEMPT TO
LIGHT MANUALLY.
CAUTION: This machine is
equipped with an electronic ignition system. Lighting of the pilot is
accomplished through electronic
spark ignition. Do not attempt to
light the appliance manually as a
burn injury or electrical shock may
result.
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
12
OPERATING INSTRUCTIONS
PREVENTATIVE MAINTENANCE
1. STOP! Read operator’s manual before operating this machine. Failure
to read operation and warning instructions may result in personal injury or property damage.
2. Turn all switches off.
READ OPERATOR’S
3. Review installation instructions.
MANUAL THOROUGHLY PRIOR TO
4. Connect water supply hose to the
USE.
inlet connector and turn water
on. Check for water 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 9).
6. Close the steam knob and chemical valve by turning
clock wise and setting the temperature control knob
between 200° - 225°.
7. Attach the desired high pressure nozzle into the wand
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 one (1) minute, a time delay feature will turn the
machine off.
9. For hot water, push the burner switch to the ON position and pull the trigger on the spray gun. Sparking
begins, pilot gas ignites and then the ignitor/sensor
will turn the main burner on. Optional remote control
requires the pump switch to be turned ON before the
burner and chemical switches will turn on.
10. To apply detergent, open the chemical valve counter
clockwise making sure that the chemical pick up tube
is in the chemical solution and not sucking air. On optional remotes the chemical switch needs to be turned
to the OFF position then turned to the ON position to
activate the chemical solenoid.
11. To Stop: Turn the burner switch off and place the
chemical pick-up tube into fresh water. Open the
chemical valve and trigger gun allowing chemical lines
to be flushed and the burner to cool. Otherwise, coil
damage will result.
12. When steam is needed, remove the side panel and
turn the steam knob counterclockwise. Then turn the
temperature adjustment knob to 275°
13. After water has cooled, turn pump switch to OFF position. If the machine is going to be off for an extended
period of time, put the manual valve on the gas valve
into the OFF position.
14. Turn the water off. Protect from freezing.
1. Check to see that the water pump is properly lubricated.
2. Follow winterizing instructions to prevent freeze damage to the pump and coils.
3. Always neutralize and flush chemical from system after use.
4. If water is known to be high in mineral content, use a
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. Always use high grade quality Landa cleaning products.
7. Never run pump dry for extended periods of time.
8. Periodically delime coils as per instructions.
It is advisable, periodically, to visually inspect the 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.
The areas around the Landa washer should be kept clean
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.
WARNING
GENERAL OPERATING
TECHNIQUES
If dirt comes off relatively easy and no grease and oil are
present, cleaning with cold water will normally suffice. However, when grease and oil are present, hot water will greatly
speed up the process.
Clean with the spray nozzle a foot or so from the surface
being cleaned. For more difficult cleaning, move the nozzle
in closer.
If the unit is equipped with a shut-off 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.
In most cases, faster results and better chemical economy
will be obtained by applying the chemical and letting it
“set” for a few minutes prior to rinsing. This enables the
chemical to do its soil penetrating and loosening work.
Most cleaning work terminates with a high pressure rinse
as part of the normal cleaning procedure. In some cases,
however, the last operation may be application of a chemical or detergent (sanitizing, for example). After such work,
run the unit for 20-30 seconds to clear pump and lines.
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
13
VNG W/O REMOTE
Draft Diverter
High Pressure
Nozzle &
Coupler
Variable Pressure
Control Handle
Pressure
Gauge
Side Panel
Pump
Switch
Spray Gun
Hour
Meter
Trigger
Temperature
Adjustment Knob
Chemical Valve
Burner Switch
Voltage Light
Pump
Light
Water
Supply
(Not
Included)
Water Supply Hose
(Not Included)
Coupler
Collar
Discharge
Nipple
Steam
Knob
Chemical
Injector (Opt.)
Chemical Bucket
(Not Included)
Pressure
Switch
Behind Side Panel
High Pressure Hose
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
VNG-L W/O REMOTE
Draft Diverter
High Pressure
Nozzle &
Coupler
Temperature
Adjustment
Knob
Variable Pressure
Control Handle
Pressure
Gauge
Side Panel
Spray Gun
Hour
Meter
Chemical
Valve
Trigger
Burner Switch
Voltage Light
Pump Light
Discharge
Nipple
Coupler
Collar
Chemical
Injector (Opt.)
Water Supply
(Not Included)
Unloader Valve
Chemical Bucket
(Not Included)
Water Supply Hose
(Not Included)
Pressure
Switch
High Pressure Hose
14
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
MAINTENANCE AND SERVICE
Spray Nozzles
Each unit is equipped with one or more spray nozzles,
depending on model. Different spray nozzles are calibrated
for each machine depending on the flow and pressure of
that particular model. Spray nozzles vary in bore size and
angle of spray. Popular spray angles are 0°, 15°, 25°, 40°.
When ordering, please specify size and angle of nozzle.
Nozzle size for each machine is located on the serial plate.
Unloader Valves:
Unloader valves relieve pressure in the line when a shutoff gun is closed. Unloader valves are preset and tested
at the factory before shipping. Occasional adjustment of
the unloader may be necessary to maintain correct pressure. (See section in manual on unloaders for correct procedure in adjusting valve.)
Winterizing Procedure:
Damage due to freezing is not covered by warranty. Adhere to the following cold weather 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 necessary.
Siphoning a small amount of antifreeze into the system is
recommended. This is done by pouring a 50:50 mix of
antifreeze and water into the float tank and then siphoning 100% antifreeze through the chemical line with 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.
15
Pumps:
Use only SAE 30 weight non-detergent oil. Change oil after first 50 hours of use. Thereafter, change oil every three
months or at 500 hour intervals. Oil level should 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
the appearance of a leaking coil, particularly on cold humid days.
To Check Water Heater Coil for Leaks:
With the main burner “OFF” start machine and allow it 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.
Figure 6
Regulator
Adjustment
Control Knob
Pilot
Adjustment
Pressure
Tap Plug
Low Pressure Diagnosis
(Units with shut-off gun)
High Limit Hot Water Thermostat:
For safety, each unit 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.
➤
Refer to the Trouble Shooting Chart for low pressure. If by
referring to the chart, the trouble is found to be either the
unloader or the pump, your next step is to determine
whether, in fact, the unloader or the pump 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 pressure is still present the pump needs
repairing. CAUTION: When using this procedure to test
components, keep the shut-off gun open at all times.
GAS VALVE
REGULATOR ADJUSTMENT
Deliming Coil:
Periodic coil deliming is recommended.
1. Fill a container with 4 gallons of water, then add 1 lb.
of deliming powder. Mix thoroughly.
2. Remove nozzle from gun assembly and put gun into
container.
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
3. Attach a short section (3-5 ft.) of garden hose to machine to siphon solution from an elevated container 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 gun.
GAS VALVE REGULATOR
ADJUSTMENT
16
Gas Pressure Requirements
All propane fired units operate on vapor propane fuel only.
They are designed to operate at a pressure of 11” water
column (between 1/3 and 1/2 of one psi), and are often
operated at even higher pressures when extra heat is
needed.
Exterior regulators are needed to control the system. Propane bottles are not included with the unit. A high pressure regulator should be installed on the propane bottle
and a low pressure regulator attached to the pressure
washer.
Adjustment of the built-in regulator isn’t normally necessary, since it is preset at the factory. However, field adjustment may be accomplished as follows:
1. Attach manometer at pressure tap port.
2. Remove regulator adjustment screw cap.
3. With a small screwdriver, rotate the adjustment screw
clockwise to increase or counterclockwise to decrease
gas pressure.
4. Replace regulator adjustment screw cap (see Figure
6, page 11).
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 preventative for
liming conditions is to use high quality cleaning chemicals. In areas where alkaline water is an extreme problem, periodic use of Landa Deliming Powder will remove
lime and other deposits before coil becomes plugged. (See
Deliming Instructions for use of Landa Deliming Powder.)
Propane Cylinder Capacity
Pressure Relief Valve
This machine is equipped with an Intermittent Pilot Ignition System. This System is designed to eliminate the need
for a constant burning pilot. Lighting of the pilot is accomplished through electronic spark ignition each 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 light
the appliance manually as a burn injury or electrical shock
may result. The pilot light will remain on and the main gas
valve is turned off when the spray gun is closed.
Each unit is equipped with a relief valve to relieve pressure in the system when higher than normally operating
pressures are encountered. If operating pressure of unit
is found to be normal and relief valve continues to leak,
repair or replace the valve. CAUTION: Relief 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 related
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 propane systems.
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 in the
cylinder boils to maintain vapor gas pressure. This boiling
process cools the liquid, and in a heavy, continuous-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 propane bottles
together to increase total vaporization capacity. It is recommended that a minimum 100 lb. vapor propane bottle
be used on the unit, depending on the length of running
time desired.
BURNER FEATURES
Operated Automatic Valve
Care of Main Burner
Due to condensation from heater coils dripping down on
the burners, a scale build-up may occur in the burner jet
orifices.
1. TO REMOVE BURNER MANIFOLD FROM WATER
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.
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
Disconnect the pilot and ignition lines from the gas
valve. Disconnect union in main burner line below thermostat. (Remove the nuts from the U-bolts, item 44
on page 20 on the VNG-S units.) Slide burner manifold out through shell opening.
2. TO CLEAN BURNER JETS:
Select proper size drill for type gas 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
Adjustment of the Pressure Regulator is not normally necessary since it is preset at the factory. However, field adjustment may be accomplished as follows:
1. Manometer attachment may be accomplished at the
pressure tap plug.
2. Remove regulator adjustment screw cap (see Figure
6, page 15).
3. With small screwdriver, rotate adjustment screw “clockwise” to increase, or “counterclockwise” to decrease
pressure.
4. Replace regulator adjustment screw.
17
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
18
VNG CONTROL PANEL
(All)
1
4
6
9
7
2
6
6
8
3
20
5
5
23
21
19
9
8
24
18
10
17
26
26
26
11
26
5
27
25
16
27
26
22
14
12
15
13
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
19
VNG CONTROL PANEL
(All) • PARTS LIST
ITEM
PART NO.
DESCRIPTION
PART NO.
DESCRIPTION
1
2-11031
Adapter,, 1/4" x 1/8" (Remote only) 1
13
95-07163012
Panel, Control, VNG-Large
2
6-140159
Valve, Chemical Solenoid,
14
6-020251
Switch, Curvette 120V & 220V 1
15
6-02053
Light, Indicator, Red, 125V
2
16
6-021633
Switch, 2 Pos. GE, C-2000
1
17
10-99015
Label, VNG Control Panel
1
10-99031
Label, VNG Control Panel
Less Coil (Remote Only)
3
6-140160
2-1055
1
Solenoid Coil, 120V
(Remote Only)
4
QTY
1
ITEM
Nipple, 1/4" x 1/8" Pipe,
(Remote Only)
5
2-3015
Valve/Control, Metering
6
2-1089
Hose Barb, 1/4" Barb, x 1/4"
Pipe, 90°(Remote Qty-2)
1
2
w/Remote
18
4-02021216
QTY
1
1
Hose, 1/4" x 16", 100R2,
Press Loop
1
1
19
2-0026
Elbow, 1/4" Female, Pipe
1
8
7
2-9000
Clamp, Screw, #4
6
20
17-22282
Nut, 10/32" Keps
8
4-02080000
Tube, 1/4" x 1/2", CLR Vinyl /ft. 12
21
95-07163038
Support, Metering Valve, VNG
2
9
4-05088
Thermostat, General 302°
1
22
4-050822
Hour Meter, ENM, 115V AC
1
10
4-05035
Gauge, O-5000 PSI
1
23
2-1085
Hose Barb, 1/4" Barb x 1/4"
11
901991
Screw, 10/32" x 1/2" BH Soc Blk
8
12
10-103110
▲ Label, 3-1100
1
24
4-02090000
Hose, 1/4" x 1/2", Braided Vinyl /ft. 6
10-1042000
▲ Label, 4-2000
1
25
6-021630
Switch, Sele GE C-2000, Remote 3
10-1043000
▲ Label, 4-3000
1
26
6-02626
Block, Contact GE, C-200 NO
3
10-2063000
▲ Label, 6-3000
1
27
6-021623
Block, Contact GE C-200 NC
3
10-2082500
▲ Label, 8-2500
1
ML Pipe
▲ Not Shown
2
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
VNG-L EXPLODED VIEW
LEFT SIDE
1
2
7
3
8
9
4
10
6
5
11
22
14
12
21
23
28
30
13
31
24
25
16
33
18
34
26
20
29
19
36
37
36
41
15
27 17
40
34
38
33
44
39
42
106
43
45
48
46
47
49
50
46
20
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
21
VNG-L EXPLODED VIEW
RIGHT SIDE
73
87
89
46
88
86
84
85
47
74
83
81 76
80
29
82
90
68
67
69
79
75
72
78
66
77
71
65
70
63
92
93
95
96
91
62
94
32
105
32
104
64
108
61
56
53
102
103
107
51
54
53
101
100
52
99
57
60
97
59
58
98
35
55
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
22
VNG-L EXPLODED VIEW
PARTS LIST
PART NO.
DESCRIPTION
QTY
ITEM
1
95-07163010
Panel, Top, VNG-L
1
2
95-07163034
L-Bracket, VNG
3
90-2022
Nut, Cage, 1/4" x 16 ga
4
90-40001
Washer, Flat, SAE,, Blk, Zinc
5
90-1001
Bolt, 1/4" x 3/4", NC HH
ITEM
6
7
8
PART NO.
DESCRIPTION
QTY
30
90-4001
Washer, 5/16", Flat, SAE
4
8
31
90-2006
Nut, 5/16", Hex, NC
2
19
32
90-10130
U-Bolt, 5/16" x 1" Pipe
1
17
33
2-1042
Tee, 1/2" Street
1
17
34
2-1053
Nipple, 1/2" JIC x 1/2" Pipe
2
35
4-02067736
Hose, 36" x 1/2", 100R2,
1
95-07163020
Panel, Side, Small, VNG-L
2
10-99027
Label, VNG Stripe
2
95-07163018
Panel, Side, Large, VNG-L
2
36
2-3014
Valve, Fluid Master 400A, Float 2
10-99028
Label, VNG, Landa/Stripe Right 1
37
17-22282
Nut, 10/32" Keps
10-99029
Label, VNG, Landa/Stripe Left
1
38
2-0151
Plug, Float Tank
1
10-99016G
Label, VNG Logo
2
39
90-4017
Washer, 1-3/16" x 2-1/4",
2
10-990161G
Label, VLP Logo
2
90-50033
Latch, Vise Action
8
40
2-1006
Nipple, 1/2" Close (restrictor)
95-07163082
▲ Hex Key, T-Handle
9
2-011041
Trim, 1/16", w/Sponge
10
95-07163022
11
Pres Loop
6
STL RBR
1
1
41
2-1024
Elbow, 1/2" Street
1
55
42
2-1906
Strainer, 1/2" Basket
1
Vertical Support, VNG-L
2
43
2-01164
Tank, Plastic Universal Float
1
95-07163024
Brace, Left Side, VNG-L
1
44
2-010050
Bulkhead, 3/4"
1
12
95-07163026
Brace, Right Side, VNG-L
1
45
2-0100379
Adapter, 3/4" x 3/4" MT x Insert 1
13
95-07163032
Brace, VNG Electrical Box
1
46
4-02120000
Hose, 3/4" Push-on
14
95-07163040
Power Platform, 8-2500
1
47
2-11050
Swivel, 3/4" JIC Fem Push-on
4
15
95-07163000
Base, VNG-L
1
48
2-10630
Elbow, 3/4" JIC x 1/2", 90°
2
/ft.
/ft.
8
95-07163012
Panel, Control, VNG-L
1
49
4-02100030
Inlet Hose, 30" Supply Water
1
10-99016
Label, VNG, Logo
1
50
4-02100045
Inlet Hose, 45" Supply Water
1
10-990161
Label, VLP, Logo
1
51
6-04110
Box, Junction, 3 Hole, 3/4"
1
17
90-1996
Screw, 3/8" x 3/4" HH NC,
14
6-0411
Cover Plate, Junction Box
1
18
90-1999
Screw, 10/32" x 3/4" BH SOC CS 6
19
2-0108
Bumper Pad
21
20
2-0104
Pad, Hard Rubber
7
53
2-0032
Elbow, 1/2", Street
2
21
9-50070
Washer, 3/8" x 1-1/2",
7
54
4-05091
Switch, Snap 275 Hi-limit
1
55
95-07163083
Wrap Outer 30" ENG/VNG Large 1
7-7002
Burner Assy, HWG-75, (8-2500) 1
56
95-07121222
Coil , Dura, 25" DIA. Sch 80
VNG L
1
57
90-2018
Nut, Cage, 10/32" x 16 ga
4
Panel, Burner End, VNG-L
1
16
Whiz Loc
Fender SAE
22
90-2002
Nut, 3/8", ESNA, NC
15
23
2-1902
Strainer, Inlet Garden Hose
1
24
2-10942
Swivel, 1/2" MP x 3/4" GHF
1
w/Strainer
52
6-0517
▲ Strain Relief, 3/4"
1
4-02067770
Hose 70" x 1/2", 100R2
1
Press Loop
25
90-2019
Nut, Cage, 39" x 12 ga
12
58
95-07163014
26
2-11041
Connector, 1/2" Anchor
2
59
95-071630106 Cover, Burner Access, VNG-L
27
2-11039
Connector, 3/8" Anchor
1
60
90-1991
Screw, 10/32" x 1/2" BH SOC Blk 4
28
2-20070
Nipple, 3/8" x 3/8" NPT ST Male 1
61
1-99369900
Screw
29
2-1060
Elbow, 1/2" JIC x 3/8", 90°
2
▲ Not Shown
1
4
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
23
VNG-L EXPLODED VIEW
PARTS LIST (continued)
QTY
ITEM
Washer
4
90-1025
Bolt, 3/8" x 5-1/2", NC HH Tap
90-4002
Washer, 3/8" x SAE, Flat
ITEM
PART NO.
DESCRIPTION
62
1-96710600
63
64
PART NO.
DESCRIPTION
87
2-1062
Elbow, 1/2" JIC x 1/2" 90°
2
88
2-0053
Elbow, 1/2" JIC, 3/8", Steel, 90° 1
10
89
5-2309
Pump, General, T-1631 (8-2500)
1
90
5-1025
Motor, 15 HP 3 PH, 1725
1
65
2-1074
Bushing, 3/8" x 1/4" Pipe
1
66
81-22565
Valve, Pop-off, 3600 psi
1
67
6-02173
Switch, Flow, ST-5
1
68
6-02174
Switch, Reed, Replacement ST-5 1
91
5-522158
Bushing, P1 x 1-5/8"
92
5-512024
Bushing, H x 24 mm (6-3000)
1
5-512032
Bushing, H x 32 mm (8-2500)
1
5-406040
Pulley, 2TB 40 (6-3000, 8-2500)
1
Tee, 3/8" Street
1
70
95-07101215
Bracket, Unloader, 1/2" x 1/2"
1
71
90-1011
Bolt, 5/16" x 2", NC HH
2
93
72
2-0079
Swivel, 1/2" JIC Fem x 3/8" Male
1
94
Hose 28" x 1/2", 100R2
1
95
Press Loop
74
5-3225
Unloader, Suttner, ST-261
1
w/Switch
1
(6-3000, 8-2500)
2-1041
4-02067728
1
RPM M2513T (6-3000, 8-2500)
69
73
QTY
5-40505501
Pulley, 2BK 55 H (6-3000)
1
5-40508001
Pulley, 2BK 80 H (8-2500)
1
5-604046
Belt, BX 46 (6-3000)
2
5-604051
Belt, BX 51 (8-2500)
2
96
90-2007
Nut, 3/8" Hex, NC
2
7-70151
Ignition, Electronic,, Control
1
75
2-0051
Nipple, 1/2" JIC x 3/8" Pipe
1
97
76
2-1051
Nipple, 1/2" JIC x 1/4" Pipe
1
98
4-02130050
Hose, 7/8" Push On, Conduit /ft 2
77
2-20027
Elbow, 3/8" Female, Pipe
1
99
2-9014
Clamp, Conduit, CL9
78
2-1076
Bushing, 1/2" x 1/4" Pipe
1
100
2-3450
Rupture Disk, 5000 PSI
1
2-3400
Rupture Disk Holder
1
1
79
2-1076
Bushing, 1/2" x 1/4" Pipe
1
101
2-1089
Hose Barb, 1/4" Barb x 1/4"
1
102
2-0046
Tee, 1/2", Street
103
2-0054
Elbow, 1/2" Jic x 1/2" 90 DGR. 1
4
104
95-07163035
Bracket, Gas Line, Support VNG 1
90-300210
Screw, #14 x 1" Tek, Blk, Zinc
Pipe, 90°
80
1
2-9000
Clamp, Screw #4
81
4-02090000
Hose, 1/4" x 1/2" Braided Vinyl /ft. 6
105
82
2-1074
Bushing, 3/8" x 1/4" Pipe
1
106
4-05088
Thermostat, General, 302 DGR 1
83
2-1022
Elbow, 1/4" Street
1
107
7-014834
Insulation, Tank Head,
84
2-10620
Elbow, 3/4" JIC x 3/4", 90°
2
108
95-071630751 Top, Burner, Wrap, 30"
85
2-1007
Nipple, 1/2" Hex
1
86
2-1033
Tee, 3/4", Female Pipe
1
30" ENG/VNG
ENG/VNG
▲ Not Shown
2
1
1
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
24
VNG-L BURNER ASSEMBLY
18
16
1
17
4
19
2
3
5
3
2
1
15
6
7
8
20
9
14
6
10
11
6
7
12
13
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
25
VNG-L BURNER ASSEMBLY
PARTS LIST
ITEM
PART NO.
DESCRIPTION
QTY
ITEM
1
2-00295
Elbow, 1" x 3/4" Reducing, Blk
2
13
2
3
2-00162
Nipple 3/4" x 3", Black Pipe
2
14
90-19710
Nut, Cage, 1/4" x 12 GA
2-001359
Bushing, 1" x 3/4" Black Steel Hex 2
15
95-07162069
Burner Square, Assy Landa
4
7-70002
Valve, , Gas, 7000 DERHC
1
5
95-07163077
Pipe, 1" NPT x 18 Blk Sch.40
1
16
17
6
2-00291
Elbow, 1", Black Pipe, 90°
3
7
2-00139
Nipple, 1" x 8" Black Pipe
2
8
7-7012
Valve, Gas Shut-Off 1” NPT
1
9
95-07163078
Pipe, 1" NPT x 11",
Black Pipe, Sch.40
1
10
2-0086
Union, 1", Black Pipe
11
2-00171
Nipple, 1" , Close, Black Pipe
12
90-19710
Screw, 1/4" x 3/4" HH NC,
Whiz Loc
PART NO.
DESCRIPTION
QTY
95-07163084
Door, Burner, Large, ENG/VNG 1
4
Less Jets
1
7-70236
Pilot, Natural Gas Electronic
1
95-07163085
Splash Guard, Pilot Light
ENG/VNG
1
18
7-0150
Tubing, Aluminum 1/4" /per in
36
18
4-02067736
Hose 36" X 1/2", 100R2,
1
1
19
7-7022
Jet, Oriface #69 Drill out to #54 99
1
20
95-07163083
Wrap, Outer, 30" ENG/VNG
Pres Loop
Large Coil
4
1
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
26
VNG-S EXPLODED VIEW
LEFT SIDE
1
8
44
3
2
7
5
10
4
6
4
5
123
36
122
39
9
38
13
14
41
15
42
11
16
18
35
17
23
28
29
23
12
19
37
27
30
22
20
26
15
21
25
17
24
33
31
34
32
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
27
VNG-S EXPLODED VIEW
RIGHT SIDE
107
112
108
110
106
111
85
39
40
18
109
84
102
90
48
33 87
95
103
96
86
101
100
99
51
38
100
98
91
34
97
94
88
92
102
93
101
104
105
68
83
82
73
72
28
71
69
67
62 61 18
66
70
72
60
64
79
71
3
117
118
74
114
80
76
81
63
59
▲
77
115
78
121
58
79
79
72
43
119
75
120
45
46
113
44
78
57
55
65
56
51
54
47
50
48
79
52
80
53
49
5
116
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
28
VNG-S EXPLODED VIEW
PARTS LIST
ITEM
PART NO.
DESCRIPTION
QTY
ITEM
1
95-07163056
Panel, Top VNG-S
1
2
95-04163034
L-Bracket, VNG
4
3
90-2022
Nut, Cage, 1/4" x 16 ga
4
5
6
PART NO.
DESCRIPTION
QTY
25
90-4017
Washer 1-3/16" x 2-1/4", STL RBR
16
26
2-1024
Elbow, 1/2" Street
1
90-40001
Washer, 1/4", Flat, SAE, Blk, Zinc 16
27
2-0151
Plug, Float Tank
1
90-1001
Bolt, 1/4" x 3/4", NC HH
18
28
17-22282
Nut, 10/32" Keps
12
(3-1100 0 Qty 1; 4-2000, 3000 - Qty 2)
95-07163062
Panel, Side, VNG-S
2
29
90-1999
Screw, 10/32" x 3/4" BH SOC CS 3
10-99016G
▲ Label, VNG Logo
2
30
95-07163058
Panel, Control, VNG-S
1
10-990161G
▲ Label, VLP Logo
2
31
4-02100030
Inlet Hose, 30" Supply Water,
1
10-99028
▲ Label, Landa Stripe Right
1
10-99029
▲ Label, Landa Stripe Left
1
90-50033
Latch, Vise Action
4
95-07163082
▲ Hex Key, T-Handle
1
33
4-02110000
Hose, 1/2" Push-On
8
2-011041
Trim, 1/16", w/sponge
28
34
2-1105
Swivel, 1/2" JIC Fem, Push-on 4
9
95-07163064
Brace, Left Side, VNG-S
1
35
2-0101
Isolator, 5/16", Vibration
6
10
95-07121013
Platform, Motor (3-1100)
1
36
90-2001
Nut, 5/16", ESNA, NC
6
1
37
90-1996
Screw, 3/8" x 3/4" HH NC,
2
7
/ft.
95-071210136 Platform, Motor, 3/16"
(All models)
32
4-02100045
Inlet Hose, 45" Supply Water
1
(4-2000, 3000)
(4-2000, 3000)
/ft.
3
WHIC LOC
11
95-07163032
Brace, Electrical Box, VNG
1
38
90-1016
Bolt, 3/8" x 1", NC HH
8
12
95-07163052
Base, VNG-S
1
39
90-4002
Washer, 3/8" SAE, Flat
18
10-99016
▲ Label, VNG Logo
1
40
90-2002
Nut, 3/8", ESNA, NC
8
10-990161
▲ Label, VLP Logo
1
41
95-07163066
Brace, Right side, VNG-S
1
42
6-0411
▲ Cover, Plate, Junction Box
1
6-04110
Box, Junction, 3 Hole, 3/4"
1
6-0517
▲ Strain Relief, 3/4"
1
95-07163060
Panel, Burner End, VNG-S
1
13
2-1902
Strainer, Inlet Garden Hose
1
14
2-100942
Swivel, 1/2" MP x 3/4" GHF
1
w/Strainer
15
2-11041
Connector, 1/2", Anchor
2
16
2-1042
Tee, 1/2" Street
2
10-02023
▲ Label, LP
1
17
2-1053
Nipple, 1/2" JIC x 1/2" Pipe
4
10-02024
▲ Label, NG
1
44
90-10130
U-Bolt, 5/16" x 1", Pipe
3
7-70236
Pilot Electronic Ignition
1
95-07162025
Bracket, Pilot Light
1
90-25
Screw, 10/32" x 1/4", Slot
2
(4-3000 restrictor)
43
18
2-0054
Elbow, 1/2" JIC x 1/2", 90°
5
45
19
2-100601
Modified Close Nipple, 1/2" NPT
1
46
5/16" (3-1100 restrictor)
20
2-10070
Nipple, 1/2" Hex (4-2000 restrictor) 1
2-1908
Strainer, 1/2" General, Inline
1
1
21
2-010050
Bulkhead, 3/4"
22
2-0100379
Adapter, 3/4" x 3/4" MT x Insert 1
4-02120000
▲ Hose, 3/4' Push-on
23
2-3014
Valve, Fluidmaster, 400A Float
24
2-0114
Tank, Plastic Universal, Float
/ft.
3
(3-1100 - Qty 1; 4-2000, 3000 - Qty 2)
1
Rnd MS ZN
47
7-7022
Jet, Orifice, 638-69
44
(see Specification Page for
drill out specs)
48
7-7011
Burner Ring, x-44
49
2-2007
Nipple, 3/8" x 3/8" NPT ST Mal 1
50
2-11039
Connector, 3/8" Anchor
▲ Not Shown
1
1
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
29
VNG-S EXPLODED VIEW
PARTS LIST (continued)
ITEM
51
PART NO.
DESCRIPTION
2-1060
Elbow, 1/2". JIC x 3/8”, 90°
52
4-02120000
Hose, 3/4" Push-on
53
7-0150
Tubing, Aluminum, 1/4" Dead
Soft
/ft.
QTY
ITEM
PART NO.
DESCRIPTION
2
77
90-2999
▲ Screw, #10 x 1/2" Tek HH
2
78
2-00164
Nipple, 3/4" x 6", Blk Pipe
2
36
79
2-00293
Elbow, 3/4" Blk
3
80
2-00162
Nipple, 3/4" x 3", Blk Pipe
2
2-0087
Union, 3/4" Blk Pipe
1
3
/inch
54
2-1118
Connector, 1/4" Tubing x 1/4” MPT 2
81
55
4-02037725
Hose, 25" x 3/8", 100R1, Pres
Loop (3-1100)
4-02047725
Hose, 25" x 3/8", 100R2, Pres
4-02047736
Hose, 36", 3/8", 100R2, Pres
4
82
90-300210
Screw, #14 x 1", Tek
1
83
95-07163075
Top, Burner Wrap, 18", VNG-S 1
1
84
2-9000
Clamp, Screw, #4
6
85
4-02090000
Hose, 1/4" x 1/2", Braided /ft.
6
86
2-1042
Tee 1/2" Street
2
87
2-1062
Elbow, 1/2" JIC x 1/2" 90°
1
Loop (4-2000, 3000)
56
QTY
1
Loop (All models)
57
2-9004
Clamp, Screw, #12
1
88
2-1053
Nipple, 1/2" JIC x 1/2" Pipe
1
58
81-22550
Valve, Pop-Off, 1200 psi (3-1100) 1
89
2-1051
Nipple, 1/2" JIC x 1/4" Pipe
1
81-22560
Valve, Pop-Off, 2400 psi (4-2000) 1
90
2-1076
Bushing, 1/2" x 1/4" Pipe
1
81-22565
Valve, Pop-Off, 3600 psi (4-3000) 1
91
6-02173
Switch, Flow ST-5
1
2-1076
Bushing, 1/2" x 1/4" Pipe
2
92
2-10260
Elbow, 45°, 1/4" Street
1
4-05088
Thermostat, General 302°
1
93
2-00270
Elbow, 3/8" Male Pipe
1
61
95-07101226
Block, Discharge, Brass 1/2"x1/2" 1
94
5-3225
Unloader, Suttner ST-261 w/switch 1
62
2-0008
Nipple, 1/2" Hex, Steel
1
95
2-1060
Elbow, 1/2" JIC x 3/8", 90°
1
63
2-0010
▲ Nipple, 1/2" x 4", Galv
1
96
2-0051
Nipple, 1/2" JIC, 3/8” Pipe
1
64
90-1994
Screw, 10/32" x 1-1/4", RH, SL Blk 8
97
2-0079
Switch, 1/2" JIC Fem, 3/8” Male 1
59
` 60
65
66
95-07163073
Coil Wrap, 18", VNG-S
1
98
6-02174
Switch, Reed, Replacement
1
10-99077
▲ Label, VNG Burner Instructions 1
99
95-07121113
Rail, Pump Combo
1
10-99032
▲ Label, Pilot Light Hole, VNG 1
100
90-2019
Nut, Cage, 3/8' x 12 ga
2
7-0142
Insulation Blanket, w/Foil
/sq. ft. 10
101
90-10220
Bolt, 3/8" x 3-1/2", Tap
1
67
95-07121213V VNG-S Coil
1
102
90-2007
Nut, 3/8", Hex, NC
2
68
95-07101241V Insulation Retainer Band,
2
103
95-07141110
Retainer, Pump Take-up,
1
VNG-S
Plated (3-1100)
69
2-3006
Valve, 1/4", Jomar T-91LPL, Ball 1
104
70
7-70002
Valve, Gas, 24V, 1" x 1",
Electronic Ignition
Washer (All models)
4
105
1-99303700
Screw (3-1100)
4
1
105
1-99364400
Screw (4-2000, 3000)
4
106
5-2302
Pump, General, T-991 (3-1100) 1
5-2304
Pump, General, T-1011 (4-2000)1
5-2305
Pump, General, T-2011 (4-3000)
1
5-1043
Motor, 2 HP, 1 PH, 3450
1
71
2-001359
Bushing, 1"x 3/4", Blk Steel, Hex 2
72
2-00163
Nipple, 3/4" x 2", Blk
3
73
2-00295
Elbow, 1" x 3/4", Reducing Blk
1
74
95-07163077
Pipe, 1" NPT 18", Blk, Sch. 40
1
75
2-00291
Elbow, 1" Blk Pipe
1
76
2-00132
Nipple, 1" x 6", Blk Pipe
1
95-07121113
Insulation Retainer Plate
1
7-0144
▲ Gasket, Retainer Plate
1
77
1-96701600
107
35K23Y685 (3-1100)
5-1040
Motor, 6 HP, 1 PH, 1725
(4-2000, 230 1 PH)
▲ Not Shown
1
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
VNG-S EXPLODED VIEW
PARTS LIST (continued)
ITEM
107
PART NO.
DESCRIPTION
QTY
5-1011
Motor, 5 HP, 3 PH, 1725, M3218T 1
(4-2000B, C, 230V &
460V 3 PH)
5-1027
Motor,5 HP,3 PH, 1725
1
M3218T-S (4-2000F, 575V)
5-1013
Motor, 7.5 HP, 1 PH, 1725,
1
L1510T (4-3000A,
230V, 1 PH)
5-10145
Motor, 7.5 HP, 3 PH, 1725,
1
M3311T (4-3000B, C,
230V, 3 PH)
5-10146
Motor, 7.5 HP, 3 PH, 1725,
1
M3311T-S (4-3000F, 575V)
108
109
110
5-40102858
Pulley, Bore, AK 28 x 5/8” (3-1100) 1
5-40205101
Pulley, 2 AK 51 H (4-2000)
1
5-40504501
Pulley, 2 BK 45 H (4-3000)
1
5-40108401
Pulley AK 84 H (3-1100)
1
5-40208401
Pulley, 2 AK 84 H (4-2000)
1
5-40508001
Pulley, 2 BK 80 H (4-3000)
1
5-601035
Belt, A-35 (3-1100)
1
5-602036
Belt, AX 36 (4-2000)
2
5-604036
Belt, BX 36 (4-3000)
2
111
5-512024
Bushing, H x 24 mm
1
112
5-511113
Bushing, H x 1-1/8" (4-2000)
1
5-511138
Bushing, H x 1-3/8" (4-3000)
1
113
90-2018
Nut, Cage, 10/32" x 16 ga
2
114
2-0133
Screw, 10/32" x 1/2", Knob
2
115
95-07163076
Door, Burner, VNG-S
1
116
7-70151
Ignition, Elec Control
1
117
2-3400
Holder, Rupture Disk
1
118
2-3450
Rupture Disk 5000 PSI
1
119
2-9004
Clamp, Screw #12
1
120
4-02130050
Hose, 7/8", Push-on, Conduit /ft 2
121
2-0046
Tee, 1/2", Street
122
95-07163035
Bracket, Gasline Support VNG 1
123
90-300210
Screw, #14 x 1" Tex, Blk, Zinc
▲ Not Shown
1
2
30
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
31
VNG6-3000 PUMP ASSEMBLY
1
24
23
22
2
21
26
3
6
20
25
5
7
18
27
8
9
4
12
19
10
28
13
11
16
15
17
14
15
ITEM
PART NO.
DESCRIPTiON
PART NO.
DESCRIPTiON
1
4-02090000
Hose, 1/4"x1/2" Braided Vinyl /ft. 6
QTY
14
90-1025
Bolt, 3/8" x 5-1/2", NC, HH Tap 2
2
2-9000
Clamp, Screw, #4
15
2-1042
Tee, 1/2" Street
2
3
2-1089
Hose Barb, 1/4" Barb x /4",
16
2-1053
Nipple 1/2" JIC x 1/2" Pipe
1
Pipe, 90°
1
17
2-10630
Elbow, 3/4" JIC x 1/2", 90°
2
4
2-1022
Elbow, 1/4' Street
1
18
2-0051
Nipple, 1/2" JIC x 3/8" Pipe
1
5
5-3225
Unloader, Suttner,
19
2-0079
Bushing, 3/4" x 1/4" Pipe
1
4
ITEM
QTY
ST-261w/Switch
1
20
2-10260
Elbow, 45°, 1/4" Street
1
1
6
2-1076
Bushing, 1/2" x 1/4" Pipe
1
21
2-1051
Nipple 1/2" JIC x 1/4" Pipe
7
5-2306
Pump, General, TS-2021-L
1
22
2-1105
Swivel, 1/2" JIC, Female Push-on 2
8
95-07121112
Rail, Pump, Combo
1
23
4-02110000
Hose, 1/2" Push-on
9
90-2019
Nut, Cage, 3/8" x 12 ga
2
24
2-1060
Elbow, 1/2" JIC x 3/8", 90°
1
10
1-96710600
Washer
4
25
6-02173
Switch, Flow, ST-5
1
11
1-99364400
Screw
4
26
6-02174
Switch, Reed, Replacement
1
12
90-2007
Nut, 3/8", Hex, NC
2
27
2-2007
Nipple, 3/8", MPT
1
13
90-4002
Washer, 3/8", SAE, Flat
2
28
2-00270
Elbow, 3/8", Male, Pipe
1
/ft.
1.5
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
32
VARIABLE PRESSURE WAND #4-011142A
VNG3-1100 • VNG4-2000
ITEM
PART NO.
DESCRIPTION
QTY
ITEM
PART NO.
DESCRIPTION
1
1-94481200
Nipple
1
12
1-90383500
‡ O-Ring
QTY
1
1-94513000
Nipple
1
13
1-10007961
Handle Core
1
2
1-18007289
Tube
2
14
1-94557000
Handle
1
3
1-18008134
Separator
2
15
1-92237500
Nut
1
4
1-92197500
Nut
1
16
1-10007270
Nipple
1
5
1-96688000
Washer
1
17
1-18008251
Tube Spacer
4
6
1-10007141
Faucet
1
18
1-18007951
Guard
2
7
1-90357500
‡ O-Ring
1
19
1-18203389
Tube
1
8
1-10008566
‡ Valve Seat
1
20
1-94483200
Nipple
1
9
1-90357700
‡ O-Ring
1
21
1-99156700
Screw
1
10
1-90503300
‡ Anti-extrusion Ring
1
22
2-1013
Coupling, Hex, 1/8"
1
11
1-10007366
‡ Sutter
1
1-VPKIT
‡ Repair Kit (contains items 7,
8, 9, 10, 11, 12)
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
VARIABLE PRESSURE WAND #4-011143A
VNG4-3000 • VNG6-3000 • VNG8-2500
ITEM
1
PART NO.
DESCRIPTION
83-0041002103
1/8" G-F Nipple
ITEM
PART NO.
DESCRIPTION
17
83-004060302
Screw
83-004150109
Copper
2
83-004190102
M4 x 20 Screw
18
3
83-004100400
Clamp
19
83-0040080014
Brass Frame
4
83-004170419
1/4" Outlet Tubes (Hvy Duty Wand)
20
83-004160135
Lower Plastic Protector
5
83-004130102
Nozzle Protector
21
83-004060113
‡ O-Ring
83-004000103
‡ Back Ring
7
83-004030205
M4 Nut
22
8
83-004020045
Valve Body
23
83-004160503
Stem
9
83-004190003
Self Drilling Screw
24
83-004060112
‡ O-Ring
10
83-004160134
Upper Plastic Cover
25
83-004150012
Stem Union
83-004030201
10 M Nut
11
83-004380009
Heat Grip Econo Wand
26
12
83-004380010
Plastic Handle (Right Side)
27
83-103150202
Washer
13
83-004170417
3/8" Inlet Tube (Heavy Duty
28
83-004100109
Handle
Wand) SS
29
83-004080016
Fitting For Handle
30
83-004170009
Handle Kit
83-004650300
‡ Repair Kit, AR SS Seat
14
83-004150404
Adapter Reducer
15
83-004160129
Plastic Handle (Left Side)
16
83-004130105
Plastic Plug
(AL334.344)
33
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
34
VNG ELECTRICAL BOX
All Models
1
3
5
3
4
16
4
17
19
2
13
14
6
15
8
7
10
18
12
5
9
11
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
35
VNG ELECTRICAL BOX
All Models • PARTS LIST
ITEM
PART NO.
DESCRIPTION
QTY
ITEM
PART NO.
DESCRIPTION
QTY
1
90-1991
Screw 10/32" x 1/2" BIR
12
6
95-07163028
Box Elec VNG-L
1
2
6-0504
Block Terminal, 4 Pole
1
7
6-0517
Strain Relief, 3/4"
4
3
4
6-03680
6-1218
Timer Solid State 120V 1 min
1
8
90-2018
Nut, ,Cage 10/32" x 16 Ga
8
Contactor GE C-2000 3-11
1
9
6-052352
Transformer 240/480 - 120V
1
CL049A310MS
.050 KVA
6-1221
4-2, 4-3A, 6-3B, 8-25B,
1
6-052392
Transformer 575 - 120V
6-1212
4-2B, CLO2A310TJ
1
10
6-052363
Transformer .050 KVA 24V
6-1205
4-2C, 4-2F, 4-3F CL00A310TJ
1
11
90-19942
Screw 10/32" x 3/4" Hex Wash 4
6-1215
4-3B, 6-3C, 6-3F, 8-3C, 8-3F
1
12
6-02295
1/2 Amp Fuse 480V
2
6-1209
4-3C, CL01A310TJ
1
6-02294
1 Amp fuse 240V
2
6-02297
▲ Fuse GDL 1/2 Amp 120V Glass 1
95-07163030
Panel, Elec Box Side
2
13
6-036210
Relay Latch (2) RH2LBUAL120 1
6-1257
▲ Overload GE RTAIS 4-2B
1
14
6-03621
Relay 120V RH2B-UL-AC120
2
6-1254
▲ Overload GE RTAIN 4-2C, F 1
15
6-05041
Block, Terminal, 16 Pole
1
6-1262
▲ Overload GE RTA2E 4-3A
1
6-0505
Bar, Jumper (All Models)
2
6-1259
▲ Overload GE RTAIU 4-3B
1
16
6-03541
Base, Relay, SH2B-05
2
6-1255
▲ Overload GE RTAIP 4-3C
1
17
6-035210
Relay, Socket, SH3B-05
1
6-1254
▲ Overload BD FGZIN 4-3F
1
18
90-1998
Screw, 1/4" x 3/4" BH SOC CS 4
6-1263
▲ Overload GE RTA2F 6-3B,
1
19
6-021595
Din Rail
CL06A311MIS
5
.050 KVA (All F units)
CL25A310TJS
▲ Not Shown
8-25B
6-1258
▲ Overload GE RTAIT 6-3C,
8-25C, 8-3F
1
1
1
1
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
36
VNG REMOTE ELECTRICAL BOX
All Models
6-0517
6-05041
N
3
7
16
4
32
12
2
17
28
6-03901
10-3014
6-0390
6-021626
6-021630
6-021623
10-02021
6-021626
6-02053
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
37
TROUBLESHOOTING
BURNER
PROBLEM
POSSIBLE CAUSE
SOLUTION
FLOW & BURNER
SWITCH ON. NO SPARK,
NO PILOT GAS
A. No main power
With power switch on, open trigger gun and set
your test meter to the 24 volt scale. Probe
terminals TH and TR. If you do not read 24 volts,
the problem is not the ignition systsem. Perform
normal system checks of main power,
transformer, thermostat, and the limit control. If
you do read 24 volts at TH and TR, the problem
is in the ignition system. Check for loose or
defective wiring. If wiring is good, replace the
ignition control unit.
B. Faulty transformer
C. Faulty burner & flow switch
D. Faulty ignition control unit
HAVE SPARK, NO PILOT
GAS FLOW
Main gas supply turned off
Set test meter to 24 volt scale.
1. Be sure main gas valve (gas cock or selector
arm) is turned on.
2. With gas on and system sparking, probe
terminals PV and TR. If pilot gas does not flow
with 24 volts at these terminals, replace gas
valve.
3. If you do not read 24 volts at terminals PV and
MV/PV, replace the ignition control unit.
HAVE PILOT GAS,
NO SPARK
A. Defective ignitor/sensor
and/or its wiring
B. Faulty ignition control unit
Set test meter to ohm scale.
1. Disconnect the wire from the IGN terminal on
the ignition control unit.
2. Touch one meter probe to the tip of the
ignitor/sensor rod in the pilot. Touch the other
probe to the quick-connect at the other end of
ignitor/sensor wire.
3. If you have continuity from the tip of the ignitor/
sensor rod to the connector and no spark,
replace the ignition control unit.
4. If you do not have continuity through the wire
and the ignitor/sensor, check for a loose wire
connection in the wire. Repair as needed.
5. Check to see if spark shorts to furnace
through a cut in the ignitor wire.
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
38
TROUBLESHOOTING
Burner Continued
PROBLEM
POSSIBLE CAUSE
SOLUTION
HAVE PILOT FLAME,
MAIN BURNER WILL
NOT TURN ON
Faulty main valve coil in the gas
valve
Set test meter to 24 volt scale.
Faulty ignitor/sensor and/or its wiring
With pilot flame on ignitor/sensor, probe terminals
MV and MV/PV on the ignition control unit. If you
read 24 volts here, but not at the gas valve, there
is a loose wiring connection. Repair or replace a
as needed.
Ground wire not attached to machine
chassis
If you do read 24 volts at MV and MV/PV and the
pilot flame is impinging on the ignitor/sensor rod,the
problems may be:
Faulty ignition control unit
a. Faulty ignitor/sensor and/or its wiring.
b. Faulty ignition control unit.
Set test meter to the ohm scale. Turn burner switch off.
Check continuity through the green ground wire and
its connections.
Reconnect the ignitor/sensor wire and the ground wire.
Turn burner switch on. With the pilot burning and the
flame on the ignitor/sensor rod, the main burner
should turn on. If it does not, replace the ignition
control unit.
SHORT-CYCLING OF
MAIN BURNER. MAIN
BURNER TURNS
OFF BEFORE THE
BURNER SWITCH OR
FLOW SWITCH IS
TURNED OFF
Draft condition pulls flame away from
ignitor/sensor rod.
Check the thermostat by bypassing at terminals
P1 & 1.
Set thermostat high. With main burner on, observe
the pilot flame impingement on the ignitor/sensor.
Faulty thermostat or water
temperature is too high
If pilot flame is small and draft condition pulls flame
from ignitor sensor rod, the burner will turn off and
then on again.
a. Adjust pilot flame higher or clean pilot oriface.
b. Bend ignitor/sensor rod closer to pilot flame.
If flame impingement on the ignitor/sensor is stable
and the system short-cycles, check the limit switch.
Set test meter to 110 volt scale
a. When the system cycles off, probe the switch
terminals of the limit switch.
b. If you read 24V accross the switch terminals the
limit switch is open. Replace the limit switch.
A pilot flame set too high will also cause burner to
short cycle. Pilot flame lifts over ignitor/sensor.
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
39
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
LOW OPERATING
PRESSURE
Faulty pressure gauge
Install new gauge.
Insufficient water supply
Use larger garden hose; clean filter washer at
water inlet.
Old, worn or incorrect spray
nozzle
Match nozzle number to machine and/or
replace with new nozzle.
Belt slippage
Tighten or replace; use correct belt.
Plumbing or hose leak
Check plumbing.
Faulty or misadjusted unloader
valve (where applicable)
Adjust unloader for proper pressure. Install
repair kit when needed.
Worn packing in pump
Install new packing kit.
Fouled or dirty inlet or
discharge valves in pump
Worn inlet or discharge valves
Clean inlet and discharge valves.
Replace with valve kit.
Obstruction in spray nozzle
Remove obstruction.
Leaking pressure control valve
(where applicable)
Rebuild or replace as needed.
Chemical metering valve left
open sucking air, or faulty
metering valve
Close and/or replace metering valve.
Slow motor RPM
Check incoming voltage.
Improper size of gas lines
See page 5 for sizing of gas lines.
Low gas pressure
Increase gas pressure to machine.
Improper pressure regulator
Specify BTU, building gas pressure and 11" wc
to machine for correct sizing of regulator.
Low gas valve pressure
Increase gas pressure as described on page 12.
Soot buildup on coils not
allowing heat transfer
Clean coils.
Improper burner nozzle
See specifications on page 90.
LOW WATER
TEMPERATURE
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
WATER
TEMPERATURE TOO
HOT
Incoming water to unit warm or
hot
Gas pressure too high
Chemical line sucking air
Lower incoming water temperature.
CHEMICAL NOT
DRAWING
Defective high limit switch
See specifications for proper gas pressure.
Tighten all clamps Check chemical lines for
holes.
Replace.
Incorrect burner nozzle size
See specifications on page 90 for proper size.
Insufficient water supplied
Check water G.P.M. to machine.
Restricted water flow
Air leak
Check nozzle for obstruction, proper size.
Tighten all clamps. Check chemical lines for
holes.
Tighten nut. Replace valve or packing.
Chemical metering valve
packing not tight or packing
worn
Filter screen on chemical
suction hose plugged
Dried up chemical plugging
metering valve
High viscosity of chemical
PUMP RUNNING
NORMALLY BUT
PRESSURE LOW ON
INSTALLATION
Clean or replace.
Disassemble and clean thoroughly.
Dilute chemical to specifications.
Restriction behind float tank
screen removed
Hole in chemical line(s)
Install restriction.
Strainer basket plugged
Connections on selector valve
loose
Chemical solenoid not opening
(where applicable)
Pump sucking air
Remove and clean.
Put teflon tape on all pipe connections.
Valves sticking
Unloader valve seat faulty
Nozzle incorrectly sized
Worn piston packing
Repair hole.
Check flow switch, replace chemical solenoid.
Check water supply and possibility of air
seepage.
Check and clean or replace if necessary.
Check and replace if necessary.
Check and replace if necessary (see serial
plate for proper size).
Check and replace if necessary.
40
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
41
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
FLUCTUATING
PRESSURE
Valves worn
Check and replace if necessary.
Blockage in valve
Pump sucking air
Check and replace if necessary.
Check water supply and air seepage at joints in
suction line.
Worn piston packing
Air in suction line
Check and replace if necessary.
Check water supply and connections on suction
line.
Broken or weak inlet or
discharge valve springs
Check and replace if necessary.
Excessive matter in valves
Worn bearings
Check and clean if necessary.
Check and replace if necessary.
Oil seal worn
Check and replace if necessary.
PUMP NOISY
PRESENCE OF WATER
IN OIL
High humidity in air
Check and change oil twice as often.
WATER DRIPPING
FROM UNDER PUMP
Piston packing worn
Check and replace if necessary.
O-Ring plunger retainer worn
Check and replace if necessary.
OIL DRIPPING
EXCESSIVE
VIBRATION IN
DELIVERY LINE
RELIEF VALVE LEAKS
WATER
Oil seal worn
Irregular functioning of the
valves
Check and replace if necessary.
Check and replace if necessary.
Relief valves defective
Replace or repair.
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
42
BURNER SPECIFICATIONS
BURNER
ASSEMBLY
JET SIZE
GAS VALVE
PILOT
ORIFICE
CONVERSION
VNG3-1000
X - 44
#56
3/4" 7000MVRHC
No
VNG4-2000
X - 44
#54
3/4" 7000MVRHC
No
VNG4-3000
X - 44
#54
3/4"7 000MVRHC
No
VNG6-3000
X - 98
#54
1" 7000MVRHC
No
VNG8-2500
X - 98
#54
1" 7000MVRHC
No
VLP3-1000
X - 44
#69
3/4" 7000MV4HC Kit
Yes
VLP4-2000
X - 44
#65
3/4" 7000MV4HC-LP Kit
Yes
VLP4-3000
X - 44
#65
3/4" 7000MV4HC-LP Kit
Yes
VLP6-3000
X - 98
#66
1" 7000MV4HC-LP Kit
Yes
VLP8-2500
X - 98
#66
1" 7000MV4HC-LP Kit
Yes
MODEL
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
43
BASIC FACTS
BASED ON 60° Ff
PROPANE
BUTANE
Formula
C3H8
C4H10
Vaporization Point (°F)
-43.7
31.1
Specific Gravity (Vapor)
1.522
2.006
Specific Gravity (Liquid)
0.508
0.584
Lbs. Per Gallon (Liquid)
4.23
4.87
B.T.U. Per Cubic Foot (Vapor)
2.563
3.39
B.T.U. Per Lb. (Vapor)
21.663
21/3-9
B.T.U. Per Gallon (Liquid)
91.74
1-3/93-
Cubic Feet Per Lb. (Liquid)
8.607
7/53
Cubic Feet Per Gallon (Liquid)
3.45
31/9
Octane Number
125
1
Molecular Weight
44.09
58.12
To calculate running cost:
1 cubic ft./1,000 BTU
100 cubic ft./Therm
Therm/hour
50¢/Therm
Example:
Using natural gas
400,000 BTU Machine
400 cubic feet
4 Therms/hour
4 x .50 = $2.00/hour to run
PRESSURE EQUIVALENTS
Simply stated, pressure is the force exerted by a gas or liquid attempted to escape from a container. It is useful to know how strong this
“attempt to escape” is. Pressure can be measured with a manometer or with a pressure gauge. At the lower levels, it is expresse d in
“inches of water column,” i.e. 11" w.c. Higher pressures are expressed in terms ofthe force exerted against a ssuare inch of area. For
example, 125 lbs. per square inch (125 PSI).
1" Water Column
=
50 oz./sq. in.
11" Water Column
=
6.35 oz./sq. in.
11" Water Column
=
4 lb./sq. in.
1 lb./sq. in.
=
27.71" Water Column
1 lb./sq. in.
=
2.04" Mercury
1" Mercury
=
.39 lb./sq. in.
1 Std. Atmosphere
=
14.73 lbs./sq. in.
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
44
PREVENTATIVE MAINTENANCE
This pressure washer was produced with the best available materials and quality craftsmanship. However, you as the owner have certain
responsibilities for the correct care of the equipment. Attention to regular preventative maintenance procedures will assist in preserving the
performance of your equipment. Contact your Landa dealer for maintenance. Regular preventative maintenance will add many hours to the life
of your pressure washer. Perform maintenance more often under sever conditions.
MAINTENANCE SCHEDULE
Pump Oil
Inspect
Oil level daily
Change
After first 50 hours, then every 500 hours or annually
Check and Tighten Belts
Every 3 months
Remove Burner Soot
Annually
Burner Adjustment/Cleaning
Annually
Clean Burner Nozzles
Annually
Descale Coil
Annually (More often if required)
Replace High Pressure Nozzle
Every 6 months
Replace Quick Couplers
Annually
Clean Water Screen/Filter
Weekly
Replace HP Hose
Annually (If there are any signs of wear)
Grease Motor
Every 10,000 hours
OIL CHANGE RECORD
Date Oil Changed
Month/Day/Year
Estimated Operating
Hours Since Last
Oil Change
VNG/VLP SERIES PRESSURE WASHER OPERATOR’S MANUAL
45
®
P R E S S U R E WA S H E R S
LANDA LIMITED NEW PRODUCT WARRANTY PRESSURE WASHERS
(Effective January 1, 1997)
WHAT THIS WARRANTY COVERS
All LANDA pressure washers are warranted by LANDA, INC. to the original purchaser to be free from defects in materials and
workmanship under normal use, for the periods specified below. This Limited Warranty is subject to the exclusions shown below, is
calculated from the date of the original purchase, and applies to the original components only. Any parts replaced under this
warranty will assume the remainder of the part’s warranty period.
LIFETIME PARTS AND ONE YEAR LABOR WARRANTY:
Brass manifolds on all pressure washer pumps carry an unconditional warranty.
FIVE YEAR PARTS AND ONE YEAR LABOR WARRANTY:
Components manufactured by Landa, such as frames, handles, coil wraps, float tanks, fuel tanks, belt guards, and coils. Schedule
40 coils will be prorated at the rate of 25% per year after two years. Internal components on the oil-end of all pressure washer
pumps.
ONE YEAR MINIMUM ON PARTS AND ONE YEAR LABOR WARRANTY:
All other components, excluding normal wear items as described below, will be warranted for the duration specified by the original
component manufacturer, with a one year minimum. Labor warranty on these parts will be for one year regardless of the duration of
the original component manufacturer’s part warranty.
WARRANTY PROVIDED BY OTHER MANUFACTURERS:
Motors, generators, and engines, which are warranted by their respective manufacturers, are serviced through these manufacturers’ local authorized service centers. LANDA cannot provide warranty on these items.
NON-WARRANTY REPLACEMENT PARTS:
These parts, excluding normal wear items as described below, will be warranted for the duration specified by the original component
manufacturer. There will be no labor warranty on these parts.
WHAT THIS WARRANTY DOES NOT COVER
This warranty does not cover the following items:
1. Normal wear items, such as nozzles, guns, discharge hoses, wands, quick couplers, seals, filters, gaskets, O-rings, packings, pistons, valve assemblies, strainers, belts, brushes.
2. Damage or malfunctions resulting from accidents, abuse, modifications, alterations, incorrect installation, improper servicing, failure to follow manufacturer’s maintenance instructions, or use of the equipment beyond its stated usage specifications as contained in the operator’s manual.
3. Damage due to freezing, chemical deterioration, scale build up, rust, corrosion, or thermal expansion.
4. Damage to components from fluctuations in electrical or water supply.
5. Normal maintenance service, including adjustments, fuel system cleaning, and clearing of obstructions.
6. Transportation to service center, field labor charges, or freight damage.
7. Labor warranty is specially excluded for all machines used for rental purposes.
WHAT YOU MUST DO TO OBTAIN WARRANTY SERVICE
While not required for warranty service, we request that you register your LANDA pressure washer by returning the completed
registration card. In order to obtain warranty service on items warranted by LANDA, you must return the product to your Authorized
LANDA Dealer, freight prepaid, with proof of purchase, within the applicable warranty period. If the product is permanently installed,
you must notify your Authorized LANDA Dealer of the defect. Your Authorized LANDA Dealer will file a claim with Landa, who must
subsequently verify the defect. In most cases, the part must be returned to LANDA freight prepaid with the claim. For warranty
service on components warranted by other manufacturer’s, your Authorized LANDA Dealer can help you obtain warranty service
through these manufacturers’ local authorized service centers. If you are unable to resolve the warranty claim satisfactorily, write to
LANDA at 4275 N.W. Pacific Rim Blvd., Camas, WA 98607, ATT: Warranty Dept., detailing the nature of the defect, the name of the
Authorized LANDA Dealer, and a copy of the purchase invoice.
LIMITATION OF LIABILITY
LANDA’S liability for special, incidental, or consequential damages is expressly disclaimed. In no event shall LANDA’S liability
exceed the purchase price of the product in question. LANDA makes every effort to ensure that all illustrations and specifications are
correct, however, these do not imply a warranty that the product is merchantable or fit for a particular purpose, or that the product will
actually conform to the illustrations and specifications. THE WARRANTY CONTAINED HEREIN IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
LANDA does not authorize any other party, including authorized LANDA Dealers, to make any representation or promise on behalf
of LANDA, or to modify the terms, conditions, or limitations in any way. It is the buyer’s responsibility to ensure that the installation
and use of LANDA products conforms to local codes. While LANDA attempts to assure that its products meet national codes, it
cannot be responsible for how the customer chooses to use or install the product.
®
WATER CLEANING SYSTEMS
4275 N.W. Pacific Rim Blvd. • Camas, WA 98607
Form #96-610 • Revised 5/99 • Printed in U.S.A. for Landa, Inc., Camas, WA 98607
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