LVO Manufacturing PT25 User manual

LVO Manufacturing, Inc.
PT25 Pan-Washer
Owner’s Manual

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
2
Warranty
LVO Manufacturing Inc. warrants equipment manufactured by it to be free from defects in
material and workmanship for a period of one ( ) year from date of delivery except as noted below.
LVO will n t be held responsible for damage or unsatisfactory performance due to negligence,
accident, alteration, unauthorized repair, improper installation or startup (see owner’s manual),
improper application, or improper maintenance (see owner’s manual).
Parts found, on factory inspection, to be defective in workmanship or materials during the
warranty period will be replaced (parts and labor, not overtime), provided the Buyer returns the
defective parts to LVO Manufacturing Inc. within 30 days, transportation prepaid. LVO
Manufacturing Inc. will pay UPS 2nd Day Air shipping charges for parts (with the exception of
excessively large or heavy items) covered on warranty if the machine is not operational.
LVO Manufacturing Inc. reserves the right to make changes in design and construction of its
products without imposing any obligation upon itself toward products previously manufactured.
This warranty is in lieu of any other warranties, expressed or implied, made on the part of
LVO Manufacturing Inc. who does not accept responsibility to any purchaser of its products for any
representation or warranty made by dealers or salespersons beyond those herein expressed including
any implied warranties of merchantability or fitness for a particular purpose.
Warranty Pr cedure
) Locate and record the 2 digit serial number located on the upper left-hand side of the pan washer.
2) Gather as much information about the problem as possible.
3) Call LVO Manufacturing Inc. at 1-800-346-5749 and request
technical service. Pri r t perf rming any warranty w rk, y u must
call the fact ry f r a warranty auth rizati n number (WA-____). This
warranty auth rizati n number must be n every inv ice we receive f r
services rendered n the machine. With ut this auth rizati n number
the inv ice will n t be paid. The warranty number must als be
included with the defective part returned.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
3
Table f C ntents
Warranty ................................................................................................................................................... 2
Table of Contents ..................................................................................................................................... 3
PT25 Specifications ................................................................................................................................. 4
Electrical Data .......................................................................................................................................... 5
Warnings & Cautions ............................................................................................................................... 6
Introduction .............................................................................................................................................. 7
Installation Instructions ............................................................................................................................ 8
Startup Procedures .................................................................................................................................
Sequence of Operation ........................................................................................................................... 3
Operation of Machine ............................................................................................................................ 4
Preventative Maintenance ...................................................................................................................... 7
Trouble Shooting – Electric Machines ................................................................................................... 8
Trouble Shooting – Gas Machines ......................................................................................................... 9
Trouble Shooting – Steam Machines ..................................................................................................... 9
Trouble Shooting Flowchart .................................................................................................................. 20
Parts List ................................................................................................................................................ 22
Drawings:
(Drawing scales are approximate)
General View ......................................................................................................................................... 26
Four View – Electric .............................................................................................................................. 27
Four View – Gas .................................................................................................................................... 28
Door Weight & Cable Assembly ........................................................................................................... 29
Bun Pan Rack ......................................................................................................................................... 30
Cake Pan Rack ....................................................................................................................................... 3
Hold-Down Rack ................................................................................................................................... 32
Ladder Diagram – Electric ..................................................................................................................... 33
Ladder Diagram – Gas ........................................................................................................................... 34

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
4
PT25 Specificati ns
Overall Dimensi ns
Width – 47 ¼” Depth – 57 ½” (58 ¼” Gas)
Height – 83 ¾” Height with door open – 05 ¼”
Door opening – 39 ½” wide x 29 ¼” high
H t Water System
¾” hot water supply required, union provided
40°F water required at the machine
78 GPH at 20 PSI (6 ½ gal/cycle x 2 cycle/hr)
Rinse booster: ( ) 9 kW heating element in a 0 gallon rinse tank OR
½” steam coil in a 0 gallon rinse tank (Recirculating Steam Only)
Full L ad Amps
208 Volt 230 Volt 460 Volt
Electric 79. 7 .5 36.8
Gas/Injected Steam 54. 48.9 25.5
Recirculating Steam 29. 26.3 4.2
Gas System (Gas Machines Only)
½” gas supply
Natural: 7” W.C. minimum inlet, 6” W.C. main manifold – 48,000 BTU
Propane: ” W.C. minimum inlet, 0” W.C. main manifold – 46,000 BTU
3” stainless steel chimney on back of machine
Steam System (Steam M dels Only)
¾” steam line, 0- 5 PSI 23 lbs/hr average – Injected
43 lbs/hr average – Recirculating
Wash System
0 Hp pump recirculates approximately 80 GPM @ 55 PSI
Heat: Electric – ( ) 9 kW heating element
Gas – (2) 24,000 BTU rated infrared burners – 48,000 BTU total
Injected & Recirculating Steam – 0 to 5 PSI, 23 lbs/hr average
40 gallon wash tank
½” copper drain
6” steam exhaust vent companion flange
(Requires PVC, CPVC, or stainless steel field installed duct)

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
5
Electrical Data
Electrical Data f r m dels FL14, PT14, FL25, & PT25 – Electric
208 Volt 230 Volt 460 Volt
Pump Motor 27. 24.3 2.2
Control Circuit 2.0 2.0 2.0
Wash Heater (one 9 kW) 25.0 22.6 .3
Rinse Heater (one 9 kW) 25.0 22.6 .3
T tal Running Current 79.1 71.5 36.8
Electrical Data f r m dels FL14, PT14, FL25, & PT25 – Gas r Injected Steam
208 Volt 230 Volt 460 Volt
Pump Motor 27. 24.3 2.2
Control Circuit 2.0 2.0 2.0
Rinse Heater (one 9 kW) 25.0 22.6 .3
T tal Running Current 54.1 48.9 25.5
Electrical Data f r m dels FL14, PT14, FL25, & PT25 – Recirculating Steam
208 Volt 230 Volt 460 Volt
Pump Motor 27. 24.3 2.2
Control Circuit 2.0 2.0 2.0
T tal Running Current 29.1 26.3 14.2
Electrical Supply to the machine should exceed the figures by the amount required by local codes.
Note: Changing the voltage of the machine in the field requires different heating elements. Contact
the factory if this situation arises.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
6
Warnings & Cauti ns
General Warnings and Cauti ns:
. Service work on the machine should be done by either a factory representative or qualified local
service company. C ntact the fact ry if the machine is under warranty.
2. Failure to follow the cleaning guidelines described in this manual will damage the machine and
will void the warranty.
Gas M del Warnings and Cauti ns:
. Installation must conform to local codes and the National Fuel Gas Code, ANSI Z223. .
In Canada: Installation must be in accordance with CGA Standard CAN/CGA-B 49. , Natural Gas
Installation Code or CAN/CGA-B 49.2, Propane Installation Code.
2. Instructions should also be posted in a prominent location describing what to do in the event that
the smell of gas is detected in the vicinity of the machine. (This information can be obtained from
your local gas supplier).
3. Do not obstruct the flow of ventilation and combustion air to the machine.
4. Gas model pan washers are equipped with an electronic ignition that automatically lights the
burners when the power switch is turned to the “ON” position and there is enough water in the
machine. To shut the burners off, the power switch should be turned to the “OFF” position.
WARNING: IF YOU SMELL GAS, SHUT OFF THE GAS SUPPLY TO THE
APPLIANCE, EXTINGUISH ANY OPEN FLAME, AND TEST ALL JOINTS WITH A
SOAP SOLUTION. IF ODOR PERSISTS, CALL YOUR GAS SUPPLIER
IMMEDIATELY.
AVERTISSEMENT: SI UNE ODEUR DE GAZ EST DÉCELÉE, COUPER
L’ALIMENTATION EN GAZ DE L’APPAREIL, ÉTEINDRE TOUTES LES FLAMMES
ET VÉRIFIER TOUS LES RACCORDS À L’AIDE D’UNE SOLUTION SAVONNEUSE.
SI L’ODEUR PERSISTE, AVERTIR IMMÉDIATEMENT LE FOURNISSEUR DE GAZ.
FOR YOUR SAFETY: DO NOT STORE OR USE GASOLINE OR OTHER
FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER
APPLIANCE.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
7
Intr ducti n
This manual should be read and understood by everyone involved with the installation and operation
of the pan washer. Keep this manual in a safe place for future reference. Extra copies or replacement
copies can be purchased from the manufacturer.
Service work on the machine should be done by either a factory representative or qualified local
service company. C ntact the fact ry if the machine is under warranty.
The LVO pan washer is designed for use in bakeries, restaurants, schools, hospitals, and hotels, to
clean pots, pans, bowls, and utensils. LVO pan washers are constructed of 4 gauge stainless steel
(cabinets) and 2 gauge stainless steel (framework). The interior piping, rinse system, wash arms, and
screens are stainless steel. Because of its sturdy construction, it will deliver years of powerful,
thorough cleaning.
The machine is equipped with a heating element in the rinse tank to boost the rinse water to a
sanitizing 80°F at the inlet to the machine. A rinse tank heated with recirculated steam is an option
available on some models.
The wash tank on electric models incorporates a 9 kW electric heating element for heating the wash
water. The gas models use a series of (2) 24,000 BTU infrared burners. Steam models use either a
direct injection system or a recirculated steam heating coil.
The pump recirculates wash water at approximately 55 pounds per square inch of pressure.
Each machine is equipped with two safety switches. The first is a low water cut-off, which shuts the
machine off when the water level in the wash tank falls below the required level. The other safety
device is a door switch, which prevents the machine from operating when the door is not completely
closed. An electrical schematic for your machine is posted inside the control box cover.
Detergent Feeders
This machine must be operated with an automatic detergent feeder, which is supplied by the customer,
including a visual means to verify that detergent is delivered or a visual or audible alarm to signal that
detergent is not available for delivery. Power for the feeder can be provided by the pump supply
connection in the control panel. See feeder equipment manual for additional information.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
8
Installati n Instructi ns
Step 1 READ: Read and understand these instructions thoroughly before attempting any part of the
installation process.
WARNING: N t f ll wing these instructi ns may v id warranty, cause
damage t the equipment and/ r cause injury t any ne inv lved in the
installati n r perati n f this machine.
A copy of the installation instructions and start-up procedure is printed on the sheet attached to
the side of the machine. EVERYONE involved with the installation must be familiar with all
aspects of the installation procedure.
Step 2 POSITIONING: The factory recommends leaving as much room as possible around the
machine for future service work. No less than 6” should be allowed along the sides of the
machine (36” for side with control box), and no less than 2” between the rear of the machine
and the wall. Extra room around the machine will facilitate cleaning the washer area.
Step 3 UNCRATING: Leave the machine fully crated until the washer is placed in the location
where it is to be installed. After the washer is uncrated, remove the banding that holds the
door weight stationary on the back of the machine. This will allow the door to open. Inside
you will find the accessories for the machine. Among these will be the fan (if ordered) and the
legs. Remove the machine from the pallet, install the legs, and level the machine. The legs are
adjustable by turning the small end one way or the other.
Step 4 DRAIN: Provisions for the drain should be made next. The pan washer has a copper drain
located as shown on the drawings (see specifications page for drain size). The drain should be
plumbed according to local code. Local ordinance may require a grease trap, vent, and/or a
floor sink. If required, these should be installed before the machine is installed. It is strongly
recommended that unions be used to allow the machine to be easily moved. Failure to do so
may void the warranty.
Step 5 WATER SUPPLY HOOK-UP: The factory recommends 40°F hot water at the machine
(see specifications page for water line size). This may require a dedicated water heater for the
pan washer. If hard water is present, the manufacturer recommends installing a water softener
or calcium filter. Hard water deposits will shorten the life of many of the components on the
pan washer, resulting in higher maintenance costs. Please note that a union is installed at the
point of hook-up (see drawings). This will allow the machine to be moved for service and
cleaning. The customer must furnish a shut-off valve on the supply side of the union. This
shut-off should be easily accessible to the operator of the machine. Additionally, if the

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
9
machine is located a long distance from the water main, it may be necessary to supply a larger
line to the machine to insure proper water pressure and flow for the machine to operate
correctly.
Step 6 STEAM VENT: The machine is equipped with a collar for 6” duct work as shown on the
drawings. This duct should be directly vented to the outside of the building. DO NOT vent
into a wall, attic, or any other concealed space of the building, and avoid horizontal runs of
duct.
The factory recommends 6” plastic pipe or stainless steel duct for the vent. If stainless steel is
used, the duct work should be installed with reverse joints so that the condensate inside the
vent can drain back into the machine without leaking, and all seams should be sealed with
silicone sealant.
Generally, the machine will ship with fractional hp inline fan option. This fan should be
mounted and sealed with silicone directly into the two adapters sent with the fan with the side
with the fan blade pointing up, and the adapter into the flange on the top of the machine before
the ductwork is installed. The longer 2” adaptor should be placed between the machine and
the fan, with the shorter 3” adaptor placed into the discharge side of the fan. The fan is
powered from the control circuit. Wire is provided to connect the fan to the two terminals
marked “FAN”
The fan is designed to run at two different speeds. The lower speed is to remove excess steam
from the machine during the wash cycle, which is determined by the speed control located
inside the panel. The speed control should be set so that it just removes any steam coming
from around the door when the machine is running fully loaded. The higher speed is
controlled by a timer and runs at the end of each cycle and when the door to the machine is
open.
N te: C nsult the fact ry bef re c nnecting any fan n t supplied with the machine.
While the machine is designed to be directly connected to a vent, local or state codes may
require a hood to be installed. Always check the local regulations prior to installing the vent.
Step 7 ELECTRICAL CONNECTIONS: The electrical connection to the machine should be made
by a qualified electrician. All steps should be taken to insure that the supply voltage to the
machine is the same as the rated voltage of the machine. Also, check that sufficient amperage
is supplied to the machine (see specifications page for ratings).
A main power shut-off, supplied by the customer, must be installed near the machine in a
place easily accessible by anyone operating or servicing the machine. The line from the main

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
0
shut-off to the machine should be watertight flex conduit. The factory strongly recommends
that a few extra feet be used to allow the machine to be moved if necessary. The wire used to
supply the machine must be heavy enough to carry the amperage load of the machine. The
supply should be run into the back of the machine at the bottom, between the rinse tank and
the side of the machine, and through the back of the control box.
The first connection should be the main ground to the grounding lug at the lower right hand
corner of the control panel. Next, the hook-up can be made to the main power block.
Once the hook-up is complete, the circuit breakers in the control box of the washer must be
checked to make sure they are in the “OFF” position. The main switch on the wall can then be
turned on to power the machine.
Step 8 GAS CONNECTION (Gas Machines Only): A certified gas technician is required for the
hook-up and final adjustments of the burners. This is necessary to insure proper inlet and
manifold pressure for the gas machines (see spec page for gas pressure settings).
Verify the type of gas supply to be used, either natural or LP, and make sure the marking on
the gas data plate agrees with that of the supply. The gas line hook-up must be made with a
union at the location shown on the gas machine drawing (see spec page for gas line size). This
line must have a shut-off valve (supplied by the customer) installed near the machine and
accessible by anyone operating or servicing the machine.
A 3” stainless steel gas chimney runs up the back of the machine. A draft diverter is included
with the machine (shipped inside the machine with the other accessories). The draft diverter
must be installed on top of the factory installed chimney. The Type B gas flue can then be
continued to the outside of the building per local codes.
The initial start-up of the burners should not be done until the start-up procedures for the
machine on the following pages have been completed.
Step 9 STEAM CONNECTION (Steam Machines Only): A steam line is required to supply the
steam injector or recirculated steam heat exchanger coil (see spec page for size of steam line).
A strainer is already built into the machine but a union will be required in the supply line
(supplied by the customer). The specification sheet above lists the rated pressure and average
steam consumption rate for the machine.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
Startup Pr cedures
Warning: These instructions must be followed or damage to the machine will result.
Step 1: Close drain valve. See drawings for location.
Step 2: With the circuit breakers in the control panel of the machine in the “OFF” position and the
main power supply to the machine connected, the ON-OFF switch on the button panel can
be turned to the “ON” position. Then wait approximately 5 seconds for the machine
controller to power up.
N te: The amber power light will not turn on until there is sufficient water in the machine.
Step 3: Fill the machine by pressing the Aut Fill button. The machine will continue to fill for 90
seconds past the point where the low water protection device is energized, turning on the
power light and temperature controllers. The machine is equipped with a l w water
pr tecti n device and will n t run with ut sufficient water in the wash tank.
N te: The machine has a door switch and will not operate with the door partially open.
Step 4: With the machine full of water and with the door closed, press the start button and let the
machine go through a complete cycle. The timers in the control panel will go through their
sequence, lighting the wash and rinse lights on the front of the machine. The cycle is
complete when the red light goes off and the amber light stays on. The pump will not run at
this time because the pump circuit breaker in the control panel is in the “OFF” position.
Step 5: Repeat Step 4 at least two times or until water can be heard spraying out of the rinse nozzles.
This ensures that the rinse tank is full of water before the heating element is energized.
Step 6: All circuit breakers in the control panel can now be switched to the “ON” position. This will
energize the heating system in the wash and rinse tanks.
Step 7: Check the pump for proper rotation by pressing the start button and observing the wash
pressure gauge on the front of the machine for 5 to 0 seconds. Then press the stop button.
The wash pressure should be 45-60 psi. If the pressure is erratic and only rises to about 20
psi, the pump is running backwards. The pump will also have a noticeable growl when
running backwards. Disconnect power to the machine and reverse the outside two wires that
feed the power block in the control panel. Reconnect power and run the pump again to
confirm that it is operating correctly.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
2
Step 8: With the power on, the wash and rinse heating systems should be checked. The rinse tank
should take 5 to 0 minutes to reach 200°F and the wash should take approximately 40 to 45
minutes to reach 60°F. The times will vary depending on the temperature of the incoming
water. N te: The rinse manifold gauge measures the temperature of the rinse water just
before it enters the machine. Therefore, this temperature reading is only accurate while the
machine is rinsing.
If the machine is not reaching temperature, check to make sure that all the breakers in the
control panel are in the “ON” position. If the wash tank is gas heated, make certain the main
gas valve is open. During initial start-up, gas machines may have to be turned on and off
several times to bleed the air out of the gas lines. Wait about a minute after turning the
machine off before turning it back on. If the machine still does not appear to be heating up
properly, call LVO Manufacturing at -800-346-5749.
Step 9: Set the rinse pressure by changing the pressure adjustment valve located on the top of the
machine. The pressure should be set at 20 psi on the rinse gauge while the machine is
rinsing. Variations in building water pressure may require the pressure to be increased or
decreased from its factory setting.
Step 10: Machines are equipped with an Aut Fill and have a timer in the electrical panel that
controls the fill valve. Adjust the timer so that the machine fills to the overflow tube (or
until water just begins to run out of the machine’s drain) when the Aut Fill button is
pressed.
Step 11: If the machine is equipped with the fan option (see Step 6 in the Installation Instructions for
a description of the fan option) verify that it is running correctly during the wash and at the
end of the cycle. If necessary, adjust fan speed so that excess steam from around the door is
removed during wash cycle when machine is loaded. NOTE: Do not set fan speed too high,
as this may remove too much heat from the machine, which may result in excessive
temperature drop.
Step 12: Replace all covers and peel off the plastic protective coating, tape, etc. from the machine that
may have been used to prepare the machine for shipping.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
3
Sequence f Operati n
 Power switch is switched “ON”
 Control panel logic control is energized
 Fill button energizes the fill solenoid
 Low water safety switch closes terminals and 4 in the control panel if there is sufficient
water in the wash tank
 Amber indicator light comes on
 Wash and rinse temp controls are energized
 Temp controls energize wash and rinse heating systems
 Door safety switch is energized
 Stop and Start buttons are energized
 Start button is pushed energizing the internal timing functions of the logic control
 Red indicator light is energized
 Wash timer (Light, Medium, or Heavy) starts, energizing the pump contactor for set amount of
time
 Wash time runs out energizing the rest timer
 After set amount of rest time, the rinse timer starts, energizing the rinse solenoid valve and
clear indicator light
 If the machine is equipped with the exhaust fan option, the fan timer runs for the set time when
the rinse cycle is completed
 After the rinse timer (or optional fan timer) has timed out, all timers are reset, and the red
indicator light is de-energized

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
4
Operati n f Machine
Initial Daily Startup
. Check if the inside of the machine has been properly cleaned since its last use. If not, clean
the machine (refer to Final Clean-Up on the following page for cleaning information).
2. Make sure scrap tray screens and the pump inlet screens are in place.
WARNING: D n t perate washer with ut all screens in place.
3. Close the drain valve.
4. Turn power switch to “ON” position, allow approximately 5 seconds for the internal logic
controller to power up, and push the Aut Fill button to fill the unit.
5. Allow wash and rinse temperatures to come up to recommended levels.
6. While machine is warming up, the first load can be prepared and placed in the machine. If the
pans are excessively dirty, they should be pre-soaked and scraped before being placed in
the rack. Pan preparation will reduce the need to change the wash water and will speed-up
the entire washing process. The correct manner for loading the racks is illustrated on the
drawings later in this manual.
7. Once the machine has reached the recommended temperatures, detergent should be added to
the wash water. Detergent should be used according to the recommendations of the
chemical supplier. A non-suds detergent is necessary and local water conditions should be
considered when selecting the concentration of the detergent. An automatic soap dispenser
should be installed at the job site by the chemical supplier. There should be a visible or
audible means of determining detergent delivery. If they have any questions concerning
the installation of their dispenser to the LVO pan washer, they can call the factory for
advice (800-346-5749).
8. The rack of pans can now be placed in the machine. The rack should be centered in the
machine to subject the pans to the full force of the spray arms. The hold-down rack should
be placed over the pans in the lowest position possible (see Hold-down drawing).
N te: The hold-down rack is not designed for use as a shelf to support heavy objects.
WARNING: L se items and glassware sh uld n t be put in the washer. The high
pressure wash cycle will damage them and p tentially the machine.
Bowls or buckets can be washed by placing them upside down on the main support rack
with the hold down rack installed above them in the lowest possible position.
The utensil basket is to be used to contain smaller items such as paddles, whisks, scrapers,
etc. The utensil basket may need to be held in place by the hold down rack to prevent it
from moving in the machine.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
5
CAUTION: When loading the machine make sure that nothing will obstruct the path of
the wash arms. This will avoid damage to the machine and to the items being washed.
When loading bowls, pans, or buckets into the machine make sure they are loaded in a
manner that will allow the wash water to drain out of them.
9. The machine cycle is completely automatic with adjustable wash, rest, and rinse timers. The
timers are located in the control panel and are factory set to the following recommended
values:
Wash: Light 3 Min
Medium 5 Min
Heavy 7 Min
Rest: 20 Sec
Rinse: 60 Sec
Fan (Optional) 30 Sec
Select length of wash (Light/Medium/High) with the 3 position selector on the button
panel and push the green start button to initiate the wash cycle. The red indicator light will
come on. At the end of the wash cycle, the red light will stay on and the 20 sec rest will
begin. The rest period allows the wash water and suds to drain from the pans. After the
rest cycle, the rinse cycle begins. During the rinse cycle, the clear indicator light will come
on. If the machine is equipped with a fan timer (see above for a description of the fan), the
fan will start after the rinse is finished. After the rinse or fan cycle is finished, the red light
will go off. The cycle is now complete. The amber power light will stay on as long as the
power switch is in the “ON” position and there is enough water in the machine.
0. Throughout the day as the machine is being used, the scrap tray screens should be periodically
removed from the machine, dumped out, washed out in the sink and replaced in the
machine.
Final Cleanup
At the end of each day’s use, the operator of the machine must clean the machine according to the
following procedure:
. Check and clean any plugged wash nozzles. Use a piece of wire to push any obstruction
out of the nozzle into the wash arm. When all of the nozzles have been cleared, close
the door; push the start button running the machine for a few seconds to blow the
debris out of the wash arms. Push the red “STOP” button. If necessary, the wash arm
assembly can be removed by pulling out the grip ring pin and sliding the assembly out
of the hub.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
6
2. Turn the machine off and open the drain valve.
3. Remove the scrap trays, dump them out, and wash them off in the sink.
4. Spray down the inside of the machine.
5. Brush off the heating element (electric models) and anywhere that doesn’t come clean
from spraying with the hose.
N te: On electric m dels, brushing the element is very imp rtant in pr l nging
the life f the element.
6. Check and clean the rinse nozzles.
7. Spray down the inside of the machine again.
8. Remove the pump inlet screen and clean it thoroughly in the sink.
N te: While removing the screen be careful not to allow any debris to fall into the
pump inlet opening.
9. Replace the pump inlet screen and the scrap tray screens.
0. Close the drain and leave the machine empty of water until it is to be used again.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
7
Preventative Maintenance
● Turn off power and drain machine, making sure it drains freely.
● Check machine for general cleanliness. Make sure the pump screen and scrap trays are clean and
properly in place. Wash heating elements (electric models only) must be cleaned on a daily basis
for proper operation. Check for plugged wash and rinse nozzles. If necessary, the entire wash arm
assembly can be removed by pulling out the grip ring pin and sliding the assembly out of the hub.
These items are part of the daily maintenance schedule.
○ Check for excessive play in the hub/wash arm assemblies. Excessive wear can affect the wash
pressure and shorten the life of some hub components. Hub repair kits are available from the
factory.
○ Close drain valve and fill machine, making sure drain does not leak (some water may initially run
out of the drain through the overflow). Run through a Light, Medium, and Heavy wash cycle,
checking for proper timer operation.
● Check if Power, Wash, and Rinse lights are working.
● Check if pump pressure during wash cycle is within recommended range (45-60 psi).
● Check if rinse pressure is approximately 20 psi. Note: This must be checked during rinse cycle for
accurate reading.
○ Make sure steam exhaust fan is working properly. See Step 6 in the Installation Instructions for
proper operation.
● Allow machine to heat up to recommended temperatures, making sure the temperature controls are
operating properly. Wash temperature and Rinse Tank temperature should be noted at this time.
The rinse water temperature gauge is accurate only during rinse cycle and should be checked
while machine is rinsing.
Note: If a qualified technician is available, current readings for heating elements should be taken
to ensure they are heating properly.
○ Machines with slide-up doors, door cables and connections should be inspected for damage or
excessive wear and replaced if necessary. Make sure cable pulleys turn freely and door switch is
still adjusted properly.
○ Pump motor(s) should be greased occasionally depending on usage. Once or twice yearly should
be sufficient under normal use.
Note:
Items above marked ● are easily identified visually and should be checked on a daily basis. Other
items should be checked periodically, depending on usage.
Time required for complete inspection may vary, depending on wash timer settings, heat up time, etc.
One to two hours is a reasonable amount of time unless problems are encountered that need attention.
If any problems or questions arise, call the factory for assistance.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
8
Tr uble Sh ting – Electric Machines
Pr blem Cause Cure
Machine won’t run No power to machine Check building power supply
Not enough water Fill machine until overflowing
Door open Close door tightly
Wash pressure too high Nozzles plugged Remove debris from nozzles
Wash pressure too low Pump running backwards See Installation Instructions
Pump screen clogged See Cleaning Instructions
Excessive suds Change soap or use less
Missing wash nozzles Replace nozzles or wash arm
Wash temperature too low Thermostat set too low Adjust wash thermostat*
Wash element blown Replace wash heating element
Rinse temperature too low Thermostat set too low Adjust rinse thermostat*
Water supply too cold Set building hot water at 40°F
Rinse element blown Replace rinse heating element
No rinse water Nozzles plugged See Cleaning Instructions
Solenoid valve stuck Clean or replace solenoid valve
Rinse strainer clogged Clean pressure regulator/strainer
Rinse does not shut off Rinse solenoid stuck open Clean or replace solenoid valve
Utensils not clean Wash time too short Use longer wash
Water too hard Install softener
Wash temperature too low Adjust thermostat*
Detergent problem Consult chemical supplier
Improper stacking of utensils See racking instructions
* WARNING: Do not set rinse thermostat above the boiling point of water. The boiling point of
water decreases with increased elevation at approximately 2°F per 000 ft of elevation.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
9
Tr uble Sh ting – Gas Machines
(Same as electric model except for the following)
Low wash temperature:
. Check temperature control set point.
2. Check switches, fuses, and breakers that control the burners.
3. Check to be sure electrical power and gas supply have not been interrupted to the burners.
4. Check that all shut-off valves in the gas line and main gas valve are in the “OPEN”
position.
5. Reset ignition control & try again. To reset control:
a. Turn On-Off switch to “Off” position.
b. Wait one minute, turn switch to “On” position.
6. If above steps do not light the main burner, call your local gas appliance service technician.
Provide the person working on the machine with the ignition system information included
with this owner’s manual.
WARNING: DO NOT ATTEMPT TO LIGHT BURNER MANUALLY
Tr uble Sh ting – Steam Machines
(Same as electric model except for the following)
Low wash temperature:
. Check temperature control set point.
2. Check boiler pressure.
3. Check to be sure electric signal is being sent to the steam solenoid.
4. Verify that the strainer in the steam line is open.
5. Check steam solenoid.
WARNING: Do not set rinse thermostat above the boiling point of water. The boiling point of water
decreases with increased elevation at approximately 2°F per 000 ft of elevation.

LVO Manufacturing, Inc.
LVO Manufacturing, Inc.LVO Manufacturing, Inc.
LVO Manufacturing, Inc.
808 N. 2
nd
Avenue E., P.O. Box 188
ock apids, IA 51246
www.lvomfg.com
[phone]
1-800-346-5749 Fax [phone]
__________________________________________________________________________________________________________________________________________________________________
20
Tr uble Sh ting Fl wchart
Pan
Washer Doesn’t Run
Does the power light illuminate when the
power switch is turned to the “on” position?
Is the wash tank filled with water
(water visible above scrap trays)?
Is there incoming 3-phase power at
the control panel?
Is there power on the primary side
of the transformer?
Is there power on the output side of
the secondary transformer fuse?
Verify the low water cut-off is working
by checking for power at terminal #4 on
the lower terminal block strip.
No
Yes
Yes
Yes
Yes
Fill the wash
t
ank.
No
Correct incoming power
supply problems
Check primary fuses on
control panel
Secondary transformer fuse is
blown or the transformer is
defective.
Defective or damaged
low water cut-off
Call LVO Mfg. for technical support
No
No
No
No
See N
ext Page
Yes