Insinger SW-25-F User manual
TECHNICAL MANUAL
STATIONARY RACK POT, PAN
and
UTENSIL WASHING MACHINES
SW-25-F
Installation, Operation and Maintenance Instructions
Insinger Machine Company
6245 State Road
Philadelphia, PA 19135-2996
800-344-4802
Fax 215-624-6966
www.insingermachine.com
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Thank you for purchasing this quality Insinger product.
On the space provided below please record the model, serial number and start-up date of this unit:
Model:__________________________________
Serial Number:___________________________
Start-Up Date:____________________________
When referring to this equipment please have this information available.
Each piece of equipment at Insinger is carefully tested before shipment for proper operation. If the
need for service should arise please contact your local Authorized Insinger Service Company.
A Service Network Listing is provided on our web site, www.insingermachine.com or call Insinger at
800-344-4802 for your local authorized servicer.
For proper activation of the Insinger Limited Warranty a SureFire™ Start-Up & Check-Out Service
should be completed on your machine. Refer to the Introduction section in this manual for an
explanation of Insinger SureFire™ Start-Up & Check-Out Program.
Please read the Insinger Limited Warranty and all installation and operation instructions carefully
before attempting to install or operate your new Insinger product.
To register your machine for warranty by phone, fax or the internet or for answers to question
concerning installation, operation, or service contact our Technical Services Department:
TECHNICAL SERVICE CONTACTS
Toll-Free 800-344-4802
Fax 215-624-6966
e-mail service@insingermachine.com
Web site www.insingermachine.com
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TableofContents
TableofContents 3
Warranty 4
Specifications 6
ElectricalDataBreakdown 7
WarningsandCautions 8
Introduction 9
InstallationInstructions 10
Start‐UpProcedures 13
SequenceofOperation 15
OperationofMachine 15
PreventiveMaintenance 17
TroubleShooting¬ElectricMachine 19
TroubleShooting¬GasMachine 20
TroubleShooting¬SteamMachine 20
PartsList 21
Drawings:
GeneralView 25
FourView:¬ElectricWashHeat 26
FourView:¬GasWashHeat 27
DoorWeightandCableAssembly 28
BunPanRack 29
CakePanRack 30
HolddownRack 31
WashSystem 32
DrainSystem 33
RackandScreenLocation 34
DualPressure 35
ElectricWashHeat¬ControlCircuitLadderDiagram 36
GasorSteamWashHeat¬ControlCircuitLadderDiagram 37
ElectricWashHeat¬ControlCircuitSchematic 38
GasandSteamWashHeat¬ControlCircuitSchematic 39
TroubleShootingFlowchart 40
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INSINGERMACHINECOMPANYLIMITEDWARRANTY
Insinger Machine Company, Inc. (Insinger) hereby warrants to the original retail purchaser of this
Insinger Machine Company, Inc. product, that if it is assembled and operated in accordance with
the printed instructions accompanying it, then for a period of either 15 months from the date of
shipment from Insinger or 1 year (12 months) from the date of installation or start-up that said
Insinger product shall be free from defects in material and workmanship. Whichever one of the two
aforestated limited warranty time periods is the shortest shall be the applicable limited warranty
coverage time period.
Insinger may require reasonable proof of your date of purchase; therefore, you should retain your
copy of invoice or shipping document.
This limited warranty shall be limited to the repair or replacement of parts which prove defective
under normal use and service and which on examination shall indicate, to Insinger’s satisfaction,
they are defective. Any part that is claimed to be defective and covered by this limited warranty
must be returned to Insinger. An RMA# must be obtained from the Insinger Warranty Department
before returning any material. Return may be done through an Authorized Service Agency.
Furnish serial number of machine and RMA # with shipment and send to:
Insinger Machine Company
6245 State Road
Philadelphia, PA 19135-2996
If Insinger’s inspection confirms the defect and the claim, Insinger will repair or replace such part
without charge and return it to you freight or postage prepaid.
This limited warranty does not cover any failure or accident, abuse, misuse, alteration,
misapplication, improper installation, fire, flood, acts of God or improper maintenance or service,
or failure to perform normal and routine maintenance as set out in the instruction booklet
(operating instructions) or for improper operation or failure to follow normal operating
instructions (as set out in the instruction booklet). Insinger is not responsible nor liable for any
conditions of erosion or corrosion caused by corrosive detergents, acids, lye or other chemicals
used in the washing and or cleaning process.
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Service must be done by either Insinger Appointed Service Agencies or agencies receiving prior
authorization from Insinger.
All warranty work must be done during normal working hours, unless purchaser receives prior
authorization from Insinger.
There are no other express warrants except as set forth herein and any applicable implied
warranties of merchantability and fitness are limited in duration to the period of coverage of this
express written limited warranty. This limited warranty supersedes all other express warranties,
implied warranties of merchant-ability and fitness or limited warranties as of this date, January 1,
1998. Some states do not allow limitation on how long an implied warranty lasts so this limitation
may not apply to you.
Insinger is not liable for any special, indirect or consequential damages. Some states do not allow
the exclusion or limitation of incidental or consequential damages, so this limitation nor exclusion
may not apply to you.
Insinger does not authorize any person or company to assume for it any other obligation or
liability in connection with the sale, installation, use, removal, return or replacement of its
equipment: and no such representations are binding on Insinger.
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SW25FSPECIFICATIONS
OVERALLDIMENSIONS
WIDTH=48”DEPTH=51”(53”GAS)
HEIGHT=84‐1/2”HEIGHTWITHDOOROPEN=106”
DOOROPENING=39”WIDEx30”HIGH
HOTWATERSYSTEM
3/4”HOTWATERSUPPLYREQUIRED,UNIONPROVIDED
140°F.WATERREQUIREDATTHEMACHINE
78GPHAT20PSI(6‐1/2GAL./CYCLEx12CYCLES/HR.)
RINSEBOOSTER:ONE9kWHEATINGELEMENTINA10GAL.RINSETANK
FULL LOAD AMPS
208 VOLT 230 VOLT 460 VOLT
ELECTRIC 79.0 72.2 37.1
GAS/STEAM(INJECTED) 54.0 49.6 25.8
STEAM(RECIRCULATING) 29.0 27.0 14.5
GASSYSTEM(GASMACHINESONLY)
½”GASSUPPLY
NATURAL:7”W.C.MINIMUMINLET,6”W.C.MAINMANIFOLD=48,000BTU
PROPANE:11”W.C.MINIMUMINLET,10”W.C.MAINMANIFOLD=48,000BTU
3”STAINLESSSTEELCHIMNEYONBACKOFMACHINE
STEAMSYSTEM(STEAMMODELSONLY)
¾”STEAMLINE,10to15PSI–
23LBS.PERHOURAVERAGEINJECTED
43LBS.PERHOURAVERAGERECIRCULATING
WASHSYSTEM
10 HP PUMP RECIRCULATES APPROXIMATELY 180 GPM @ 55 PSI
HEAT:>ELECTRIC–ONE9kWHEATINGELEMENT
>GAS – TWO 24,000 BTU RATED INFRARED BURNERS = 48,000 BTU
>STEAM – DIRECT INJECTION, 10 to 15 PSI, 23 LBS. PER HOUR AVERAGE
RECIRCULATED, 10 to 15 PSI, 43 LBS. PER HOUR AVERAGE
40 GALLON WASH TANK
1-1/2” COPPER DRAIN
6” STEAM EXHAUST VENT COMPANION FLANGE
(REQUIRES PVC, CPVC, OR STAINLESS STEEL FIELD INSTALLED DUCT)
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ELECTRICALDATAforMODELSSW‐25‐FElectric
3phase Voltage 208 230 460
Pump Motor 27.0 25.0 12.5
Control Circuit 2.0 2.0 2.0
Wash Heater (one 9kW) 25.0 22.6 11.3
Rinse Heater (one 9kW) 25.0 22.6 11.3
Total Running Current 79.0 72.2 37.1
ELECTRICALDATAforMODELSSW‐25‐FGasorInjectedSteam
3phase Voltage 208 230 460
Pump Motor 27.0 25.0 12.5
Control Circuit 2.0 2.0 2.0
Rinse Heater (one 9kW) 25.0 22.6 11.3
Total Running Current 54.0 49.6 25.8
ELECTRICALDATAforMODELSSW‐25‐FRecirculatingSteam
3phase Voltage 208 230 460
Pump Motor 27.0 25.0 12.5
Control Circuit 2.0 2.0 2.0
Total Running Current 29.0 27.0 14.5
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.
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GeneralWarningsandCautions
1Service work on the machine should be done by either a factory representative or qualified local
service company. Contact the factory if the machine is under warranty.
2Failure to follow the cleaning guidelines described in this manual will damage the machine and will
void the warranty.
GasModelWarningsandCautions:
1Installation must conform with local codes and the National Fuel Gas Code, ANSI Z223.1. In Canada:
Installation must be in accordance with CGA Standard CAN/CGAB149.1, Natural Gas Installation
Code or CAN/CGAB149.2, Propane Installation Code.
2Instructions 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).
3Do not obstruct the flow of ventilation and combustion air to the machine.
4Gas model pan washers are equipped with an electronic ignition which 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.
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Introduction
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. Contact the factory if the machine is under warranty.
The INSINGER pan washer is designed for use in bakeries, restaurants, schools, hospitals, and hotels, to clean
pots, pans, bowls, and utensils. INSINGER pan washers are constructed of 14 gauge stainless steel (cabinets)
and 12 gauge stainless steel (framework). The interior piping, rinse system, wash arms, and screens are stainless
steel. The control panel is assembled with UL approved components and is housed in a stainless steel control
box. 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 180° F
at the inlet to the machine. A rinse tank heated with recirculating steam is an option available on some models.
The wash tank on electric models incorporates a 9 kW heating element for heating the wash water. The gas
models use a series of (2)24,000 BTU infrared burners. Steam models use a direct injection system or a
recirculating steam heating coil.
The pump recirculates wash water at approximately 50 pounds per square inch of pressure.
Each machine is equipped with two safety switches. The first is a low water cutoff, 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.
DetergentFeeders
This machine must be operated with an automatic detergent feeder, 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.
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Installation Instructions
Step 1 READ: Read and understand these instructions thoroughly before attempting any part of the
installation procedure.
WARNING:Notfollowingtheseinstructionsmayvoidwarranty,causedamagetothe
equipmentand/orcauseinjurytoanyoneinvolvedintheinstallationoroperation
ofthismachine.
A copy of the installation instructions and startup procedure is printed on the yellow 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 16" should be allowed along the sides of the machine (36" for
side with control box) and no less than 12" between the rear of the machine and the wall. Extra room
around the machine will facilitate cleaning the washer area.
Note: Gas models should be installed in a location free of drafts.
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 tape 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 pages 26 and 27 of this manual (see page 6 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 HOOKUP: The factory recommends 140° F (120° F minimum) hot water at
the machine (see page 6 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 hookup (see pages 26
and 27). This will allow the machine to be moved for service and cleaning. The customer must furnish
a shutoff valve on the supply side of the union. This shutoff should be easily accessible to the operator
of the machine.
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Step 6 STEAM VENT: The machine is equipped with a collar for 6" duct work as shown on pages 26 and
27. 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. All seams should also be sealed with silicone sealant.
Generally, the machine will ship with fractional hp inline fan option. This fan should be mounted and
siliconed directly into the two adapters sent with the fan, and the adapter into the flange on the top of
the machine before the ductwork is installed. The adapters are machined so that they can be turned to
fit both the inlet and outlet 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.
Note: Consult the factory before connecting any fan not supplied with the machine
Step 7 ELECTRICAL CONNECTION:Theelectricalconnectiontothemachineshouldbemadebya
qualifiedelectrician.Allstepsshouldbetakentoinsurethatthesupplyvoltagetothemachineisthe
sameastheratedvoltageofthemachine.Alsocheckthatsufficientamperageissuppliedtothe
machine(seepage6orpage7forratings).
A main power shutoff, 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 shutoff 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 hookup can be made to the main power block. On 230 VAC machines the
wild leg must be connected to the center terminal.
Once the hookup 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.
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Step 8 GAS CONNECTION (Gas models only): A certified gas technician is required for the hookup
and final adjustments of the burners. This is necessary to insure proper inlet and manifold pressure for
the gas machines (see page 6 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 hookup must be made with a union at the
location shown on page 27 (see page 6 for gas line size). This line must have a shutoff 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 backside 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 startup of the burners should not be done until the startup procedures for the machine on the
following pages have been completed.
Step 9 STEAM HOOKUP (Steam models only): A steam line is required to supply the steam injector or
recirculated steam heat exchanger coil (see page 6 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 on page 6 lists the rated pressure and average steam consumption rate for the
machine.
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StartUpProcedures
Warning: These instructions must be followed or damage to the machine will result.
Step 1: Close the drain valve (see location on pages 25 and 33).
Step 2: Open the main water supply valve (if the machine is equipped with the Auto Fill option, skip to Step
3), then open the fill valve (see location on pages 26 and 27). Fill the machine to the level of the
overflow tube (see location on page 32). The machine is equipped with a low water protection device
and will not run without sufficient water in the wash tank.
Step 3: 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. This should light the amber power light. If not, check this bulb and the other two bulbs to
make certain they are tight.
Machines equipped with the Auto Fill option can now be filled by pressing the Auto Fill button. Until the Auto Fill timer is
properly adjusted (see StartUp Procedures Step 10), the Auto Fill button may need to be pushed more than once to fill the
machine.
Note: The machine has a door safety 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 clear and red light go
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 10 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. The outside two wires that feed
the power block in the control panel should be reversed. Run the pump again to confirm that it is
operating correctly.
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Step 8: With the power on, the wash and rinse heating systems should be checked. The rinse tank should take
5 to 10 minutes to reach 195° F and the wash should take approximately 40 to 45 minutes to reach
150° F. The times will vary depending on the temperature of the incoming water. Note: 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 that main gas valve and the gas
valve in the control panel are open. During initial startup, 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
INSINGER Manufacturing.
Step 9: Adjust the pressure regulator (see location on pages 26 and 27). 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 equipped with the Auto Fill option have a timer in the electrical panel which 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 Auto Fill button is pressed once.
Step 11: If the machine is equipped with the fan option (see page 11 for a description of the fan options) 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 and tape etc. from the machine
which may have been used to prepare the machine for shipping.
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SequenceofOperation
Power switch "ON".
LOGO logic control is energized.
Fill button (optional) energizes fill solenoid.
Low water safety switch closes terminals 1 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 times
out.
After the rinse timer (or optional fan timer) has timed out, all timers are reset, and the red/clear indicator lights
are deenergized.
OperationoftheMachine
InitialDailyStartUp
1. Check if the inside of the machine has been properly cleaned since its last use. If not, clean the
machine (refer to Final CleanUp on the following page for cleaning information).
2. Make sure scrap tray screens and the pump inlet screen are in place (see page 34).
a. WARNING: Do not operate washer without all screens in place.
3. Close the drain valve.
4. Open fill valve and fill wash tank to the top of the overflow tube (see page 33 for location) or until
water begins to run out of the overflow. If the machine is equipped with the Auto Fill option push the
Auto Fill button to fill the unit.
5. Turn power "ON" and 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 presoaked 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 page 29 and 30.
7. Once the machine has reached the recommended temperatures, detergent should be added to the wash
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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 INSINGER pan washer,
they can call the factory for advice.
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 holddown rack should be placed over the pans
in the lowest position possible (see page 31 or 34).
Note: The holddown rack is not designed for use as a shelf to support heavy objects.
WARNING:Loose items and glassware should not be put in the washer. The high pressure wash
cycle will damage them and potentially 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 can be placed on top of the hold down rack and washed along with a load of pans or
buckets. The utensil basket may need to be held in place by the hold down rack to prevent it from
moving in the machine.
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) 60 sec
Select the 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 page
11 for a description of the fan options) the fan will start after the rinse is finished. After the rinse or fan
cycle is finished the red and clear lights 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.
10. Throughout the day as the machine is being used, the scrap tray screens (see page 33 for location of
screens) should be periodically removed from the machine, dumped out, washed out in the sink and
replaced in the machine.
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FinalCleanUp
1. At the end of each day's use, the operator of the machine must clean the machine according to the
following procedure:
2. Check and clean any plugged wash nozzles (see page 32 for location of nozzles). Remove the end caps
on the wash arms. 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. The end caps
can now be replaced and the power switch should be turned "OFF". (If necessary, the wash arm
assembly can be removed by pulling out the grip ring pin and sliding the assembly out of the hub).
3. Drain the machine.
4. Remove the scrap trays (see page 34 for location of scrap trays), dump them out and wash them off in
the sink.
5. Spray down the inside of the machine.
6. Brush off the heating element (electric models) and anyplace that doesn't come clean from spraying
with the hose. NOTE: (Electric Models) Brushing the element clean is very important in prolonging the
life of the element.
7. Check and clean the rinse nozzles with a piece of wire to keep them from plugging up with lime and
scale.
8. Spray down the inside of the machine again.
9. Remove the pump inlet screen (see page 32 or 34 for location of screen) and clean it thoroughly in the
sink. NOTE: While removing the screen be careful not to allow any debris to fall into the pump inlet
opening.
10. Replace the pump inlet screen and the scrap tray screens.
11. Close the drain and leave the machine empty of water until it is to be used again.
PREVENTIVEMAINTENANCEFORINSINGERPANWASHERS
1. Turn off power and drain machine, making sure it drains freely.
2. 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. Check if all cleanout plugs are in place at
the ends of the rotating wash arms and make sure they are not cracked or broken. 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 and should be done on a daily basis.
3. 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. Basic and complete hub repair kits are available from the
factory.
4. Close drain valve and fill machine, making sure drain does not leak (some water may initially run out
the drain through the overflow). Run through a Light, Medium, and Heavy wash cycle, checking for
proper timer operation. Machines prior to 1997 may have a single adjustable wash timer in place of the
three position selector.
5. Check if Power “ON”, Wash, and Rinse lights are working.
6. Check if pump pressure during wash cycle is within recommended range (See owners manual or
legend on gauge panel).
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7. Check if rinse pressure is approximately 20 psi. Note: This must be checked during rinse cycle only for
accurate reading.
8. Make sure steam exhaust fan is working properly. On machines with a 100cfm Tjernlund fan, the fan
should run continuously when power switch is turned on. On machines with a 700 cfm American fan,
the fan should run for set amount of time after the rinse cycle.
9. * Allow machine to heat up to recommended temperatures, noting if temp gauges and thermostats are
operating properly (see start up procedure in owners manual for approximate heat up times). 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.
10. Note: If a qualified technician is available, current readings for heating elements should be taken to
ensure they are heating properly.
11. On machines with slideup 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.
12. 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.
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Trouble Shooting Electric Machines Problem 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 backward See installation instructions
Pump screen clogged See cleaning instructions
Excessive suds Change soap or use less
Missing wash nozzles Replace nozzles or wash arm
Missing wash arm end plugs Replace wash arm end plugs
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 to 140° F
Rinse element blown Replace rinse heating element
No rinse water Nozzles plugged See cleaning instructions
Solenoid valve stuck Clean solenoid valve or replace
Rinse strainer clogged Clean pressure regulator/strainer
Rinse does not shut off Rinse solenoid stuck open Clean or replace solenoid valve
Faulty rinse timer Replace rinse timer
Utensils not clean Wash time too short Use a 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 Donotsetrinsethermostatabovetheboilingpointofwater.Theboilingpointof
waterdecreaseswithincreasedelevationatapproximately2°Fper1000ftofelevation.
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TroubleShootingGasMachines
(Same as electric model except for the following)
Low wash temperature
1. Check thermostat setting.*
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 shutoff valves in the gas line and main gas valve are in the "OPEN" position.
5. Reset ignition control and try again. To reset control:
a. Turn onoff selector switch to the "OFF" position.
b. Wait one minute, turn power switch "ON".
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:Donotattempttolighttheburnermanually.
TroubleShootingSteamMachines
(Same as electric model except for the following)
Low wash temperature
1Check thermostat setting.*
2Check boiler pressure.
3Check to be sure electric signal is being sent to the steam solenoid.
4Verify that strainer in steam line is open.
5Check 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 1000 ft of elevation.
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