CMA Dishmachines L-1Xe User manual
2220 EASTMAN AVE. SUITE #112
VENTURA, CALIFORNIA 93003
(800) 577-6202
https://bcichem.com
C M A D I S H M A C H I N E S
1 2 7 0 0 K N O T T A V E N U E
GARDEN GROVE, CALIFORNIA 92841
8 0 0 - 8 5 4 - 6 4 1 7
F A X 7 1 4 - 8 9 5 - 2 1 4 1
www.cmadishmachines.com
Owner’s Manual
Installation & Operations
Rev 1.04 6-23-20
TABLE OF CONTENTS
MODEL CMA-L-1Xe
1.
SPECIFICATIONS .........................................................................................2
1.1. L-1Xe.............................................................................................................................................. 2
1.2. L-1Xe OPERATIONAL CYCLE.....................................................................................................................................3
2.
GETTING STARTED .....................................................................................5
2.1.
INTRODUCTION TO THE L-1Xe......................................................................................................... 5
2.2.
RECEIVING AND INSTALLATION................................................................................................................................6
2.2.1.
Electrical ................................................................................................................................ 6
2.2.2.
Plumbing................................................................................................................................. 7
2.2.3.
Installers Checklist ................................................................................................................. 7
3.
OPERATION..................................................................................................8
3.1.
INITIAL SETUP.................................................................................................................................................................8
3.1.1.
Check ...................................................................................................................................... 8
3.1.2.
Chemicals ............................................................................................................................... 8
3.1.3.
Filling the Machine................................................................................................................. 8
3.2.
GENERAL..........................................................................................................................................................................8
3.2.1.
Pre-Scrapping......................................................................................................................... 9
3.2.2.
Proper Chemical Dosage........................................................................................................ 9
3.2.1.
Proper Filling ......................................................................................................................... 9
3.2.2.
Water Pump ............................................................................................................................ 9
3.2.3.
Pump Cavitation ..................................................................................................................... 9
3.2.4.
Deliming Dishmachine ..........................................................................................................10
4.
MAINTENANCE...........................................................................................11
4.1.
TIMER ASSEMBLY ....................................................................................................................................................... 11
4.1.1.
Cam Adjustment.....................................................................................................................11
4.2.
QUICK SERVICE GUIDE .............................................................................................................................................. 12
4.3.
TROUBLESHOOTING ................................................................................................................................................... 13
5.
ADDENDUM FOR MACHINES INSTALLED IN THE CITY OF CHICAGO .15
APPENDIX A: OPERATOR & CLEANING INSTRUCTIONS.............................16
6.
ELECTRICAL DIAGRAM ............................................................................17
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MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
1.
Specifications
1.1. L-1Xe
METRIC
EQUIVALENT
WATER CONSUMPTION
PER RACK
.99 GAL.
3.75 L
PER HOUR
40 GAL.
150.00 L
OPERATING CYCLE
WASH TIME-SEC
46
46
RINSE TIME-SEC
29
29
DWELL TIME-SEC
15
15
TOTAL CYCLE
90 Sec.
90 Sec.
OPERATING CAPACITY
RACKS PER HOUR
40
40
WASH TANK CAPACITY
.99 GAL.
3.75 L
PUMP CAPACITY
52 GPM
196.8 LPM
WATER TEMP REQUIRED
120°F
49°C
WATER TEMP RECOMMENDED
140°F
60°C
WATER INLET
1.27cm
DRAIN CONNECTION
1.27cm
FRAME DIMENSIONS
DEPTH
23
59.69 cm
WIDTH
24
60.96 cm
L-1Xe HEIGHT
33 18
84.74 cm
L-1Xe MAX CLEARANCE FOR DISHES
12
31.11 cm
ELECTRICAL* 115 VAC
16 AMPS
WASH HEATER
(Not Booster Heater)
1.250 kW
WASH PUMP MOTOR 13.4 AMPS
*MUST CONNECT TO DEDICATED SUPPLY CIRCUIT.
COMPLIANCE WITH LOCAL ELECTRICAL CODES MUST BE FOLLOWED.
SHIPPING WEIGHT
L-1Xe (Approximate) 190# 86.2 kg
Note: The required flowing water pressure to the dishwasher is 15-65 PSI. If pressures higher
than 65 PSI are present, a pressure regulating valve must be installed in the water line to the
dishwasher (by others). If flowing pressure is lower than 15 psi, improper machine operation may
result.
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MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
1.2. L-1Xe Operational Cycle
The L-1Xe Operational Cycle has a total cycle time of 1 minutes (90 seconds). The
Timing Diagram and the steps listed below detail the individual functions that are
executed during each Operational Cycle.
Seconds: 010 20 30 40 50 60 70 80 90
Cam 1
Cam 2
Cam 3
Cam 4
Cam 5
Cam 6
Cam 7
Cam 8
1.
With the machine powered up, toggling the START switch begins a cycle.
a)
Toggling the START switch energizes both the cam timer motor and the instant
start relay. The instant start relay latches ON the power to the cam timer motor so
that the START switch can be released a moment after it has been toggled without
the cam timer motor losing power.
b)
After about 2 seconds, Cam 1—the Start cam—latches ON the power to the cam
timer motor and drops out the instant start relay. The cam timer motor continues
to run for a total of 90 seconds, at which time it switches OFF—resetting the cam
timer—and waits for the next start command.
2.
Cam switch 7 controls the pump motor. The pump motor comes ON at the beginning
of the operational cycle and continues to run until the end of the drain function
(controlled by cam switch 3), at which time it turns off for about eight seconds
allowing time for the machine to refill enough to avoid running the pump dry before
the pump motor restarts and runs to the completion of the operational cycle.
Start/Stop
Detergent
WASH
RINSE
Drain/Rack
Counter
Fill/Flush
Sanitizer
Rinse Aid
Motor Pause
Heater
4sec. delay to prevent
chemical damage
DRAIN
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4
MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
The pump motor runs the pump for the 46-second wash cycle, then the drain pump
drains the water out through the drain, turns off (allowing the machine to refill with
clean rinse water) and then runs the pump for the 29-second rinse cycle.
3.
Cam switch 2 controls the detergent pump and turns ON about 3 seconds after the
operational cycle is started and runs for a few seconds to provide sufficient detergent
for the wash cycle. This cam can be adjusted as necessary for proper detergent
dosage.
See section 4.1.1 Cam Adjustment
4.
Cam switch 3 controls the drain function. At the end of the 46-second wash cycle,
cam switch 3 energizes the drain pump allowing the drain pump motor to drain the
wash water out of the machine. Cam switch 3 also increments the rack counter by one
each cycle.
5.
Cam switch 4 controls the water valve solenoid on the water supply to flush/fill the
machine. At the end of the wash cycle the drain pump energizes (to pump the wash
water out through the drain). With the drain pump stopped—the machine begins to
fill for the rinse cycle. Once the machine has refilled sufficiently, the pump motor
restarts continuing the rinse portion of the cycle as the filling of the wash tank
completes.
6.
Cam switches 5 and 6 control the sanitizer and rinse pumps respectively. They turn
ON at the beginning of the rinse cycle and run for a few seconds to provide sufficient
sanitizer and rinse aid for the rinse cycle. These cams can be adjusted as necessary for
proper chemical dosage. See section 4.1.1 Cam Adjustment
7.
Cam switch 8 operates the wash tank heater. This cam assures that the wash tank
heater only turns on when the dishmachine is not in a cycle. This prevents the
machine from drawing too much electrical current at any one time.
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MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
2.
Getting Started
2.1. Introduction to the L-1Xe
The L-1Xe low temperature Dishwasher/Glasswasher is unique in its field; it has all the features of
a standard commercial size machine packed into an under-counter, standalone
dishwasher/glasswasher.
Operation of the L-1Xe is extremely easy. After initially filling the machine (see section 3.1.3
Filling the Machine), F/Sa c START b Oaa
Cycle, which runs automatically.
The only external connections necessary are the power source, water supply and drain.
There are also accesso a ca b c c a a 4 a 6 .
See parts manual for the parts list and accessories available for the machine.
The supply water to the L-1Xe required is 120°F and recommended at 140°F. The pipe supplying
the water b . T b cc ca a bac ac. T
machine comes with a drain hose. See section 2.2.2 Plumbing. This manual is structured to
provide a complete reference guide to the L-1Xe. It is presented in a manner that all users will be
able to comprehend and use as an effective tool in supporting the installation, operation and
maintenance of the dishwasher/glasswasher. The first section provides the specifications and
details of the operational cycle. The next section explains how the machine is packaged and what
to look for when receiving the machine. After unpacking the machine, this manual explains how to
install and set up the machine for use. Requirements are given for plumbing, wiring, and space
considerations. The Operation section of the manual may be used for instruction and procedures
when required. We make this portion of the manual easy to understand so that all levels of
operators may be able to read and comprehend the operation of the machine. The function of the
machine itself is mostly automatic and takes little training to put into full operation. The Operation
section also includes diagnostic considerations for the machine if problems occur.
CMA warranties the workmanship of the machine.
DISCLAIMERS
CMA expressly disclaims any and all warranties, express or implied, relating to the installation of any and all CMA
equipment that is installed by chemical dealers, contracted servicers or third party servicers to CMA equipment. If
the installation instructions are not followed exactly (to the letter), or, if any person or company conducting the
installation of the CMA equipment, revise the installation procedures or alter the instructions in any manner, the
CMA warranty becomes void. If, due to the improper installation of CMA equipment, this equipment ceases to
operate properly or affects other parts of the CMA dishwashing equipment, in that the other parts become
defective, the CMA warranty becomes void. CMA will not be liable or responsible or warrant CMA equipment, due
to improper installation of any CMA model dishwasher.
CMA does NOT endoe Tankle On-Demand ae heae fo e on CMA Dihmachine podc. On
most applications, the volume of hot water required for commercial dishmachines exceeds the capacity of
these types of heating sources. You will find that most, if not all, commercial dishmachines have been
programmed with auto-filling features that require quick filling, with a designated limited time.
CMA DOES endoe, and highl ecommend, he andad ank le ae heae, ied popel o
handle each paicla facili ih hei ae heaing eiemen. A ank le ae heae oe and
supplies a large capacity of preheated water before providing hot water to the dishmachine. To meet required
health codes, there must be a reliable and consistent flow of adequate hot water supplied to the dishmachine.
If he faciliie ank le ae heae i maginal in ie, CMA ecommend inalling a proper size Hatco
Booe Heae, a CMA E-Temp 40 or 70-degree-rise Booster Heater (that can be installed on CMA
Conveyors), or a CMA Temp-Sure Booster Heater (for door and undercounter dishmachines). All are designed
to adequately achieve results.
Warning: cancer and reproductive harm www.P65Warnings.ca.gov
Operation
Operation
Page 6
MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
2.2. Receiving and Installation
The dishwasher is shipped from the factory in a corrugated box on a wooden pallet. The
installation guidelines give a systematic procedure for setting up the machine.
1.
Start by removing the box and packaging material. Check for the following component parts:
A.
Drain Screen:
The Wash Tank Scrap Screen is shipped inside the wash cavity of the machine. This
screen must be in place during operation. It has been designed to perform two basic
functions:
Strain water that is circulating through the spray arms and pump assembly.
A basket to catch heavy solids or broken glass that may plug the impeller.
B.
Tube Stiffeners:
The tube stiffeners must be used to prevent the feed tubes from curling up inside the
chemical pail allowing the tip to rise out of the chemical. Remove the tie-wraps securing
the tube stiffeners to the dishmachine to free them up for use. Be careful not to remove
any of the tie-wraps securing the tube bundle.
2.
Set the machine in place and, using the leg adjusters, level from side-to-side and front-to-back
to prevent door leaks.
Steam generated from normal operation may escape from door. Wood, laminates, veneers, etc.
are unsuitable materials for use in areas exposed to dishwasher steam and detergents. Stainless
steel or other moisture-resistant shields are recommended for surfaces adjacent to sides and tops
of under counter dishwashers.
2.2.1. Electrical*
Prior to installation make sure the electrical supply is compatible with the specifications on the
machines data plate.
115 volt, 60 Hz dedicated circuit must be used to supply electrical power to the L-1Xe
Dishmachine (see specification sheet page 1).
WARNING: Electrical and grounding connections must comply with the applicable portions of the
National Electrical Code and/or other local electrical codes.
Note: For supply connections, use copper wire only rated at 90 degree C minimum.
*
Electrical and plumbing connections must be made by a qualified person who will comply with all
available Federal, State, and Local Health, Electrical, Plumbing and Safety codes
Operation
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MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
2.2.2. Plumbing
Notice to Plumber: The plumber connecting this machine is responsible for making certain that
the water lines are THOROUGHLY FLUSHED OUT BEFORE connecting to the dishwasher.
T ac a ba a a a NPT cc ca a
left-hand corner (facing the back) of the machine. A required 120°F water line should be plumbed
to this point. The water line used must be of sufficient length and flexibility to permit the machine to
be moved for cleaning.
Mac a a . C a a ca a a
a a 1 a; c greater, above the flood level rim of an
approved floor drain.
CMA recommends utilizing a water softening system to maintain water hardness
measurements of 3.5 gpg (grains per gallon) or less. This will assure maximum results and
optimum operation of the dishmachine.
Note: high iron levels in the water supply can cause staining and may require an iron filter. High
chlorine levels in the water supply can cause pitting and may require a chloride removal system.
If an inspection of the dishwasher or booster heater reveals lime buildup after the equipment has
been in service, water treatment is recommended. If water softener is already in place, ensure
there is a sufficient level of salt.
2.2.3. Installers Checklist
Dishwasher/Glasswasher checked for concealed damage
Hot water supply is required 120° F (49 C), recommended140° F (60 C)
Incoming water supply line is
Supply circuit breaker for machine is properly sized
Service voltage and phase type are correct to machine data plate
Drain hose is installed with adequate air gap
Dishwasher/Glasswasher is properly grounded
Dishwasher/Glasswasher is properly leveled
Machine circuit breaker is labeled DISHWASHER o GLASSWASHER
Machine has been connected with correctly sized wire
Electrical and plumbing connections must be made by a qualified person who will comply with all
available Federal, State, and Local Health, Electrical, Plumbing and Safety codes
The de-liming agents used to de-scale a commercial dishwasher, are highly caustic and de-liming
must be done by a qualified chemical specialist.
Operation
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MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
3.
Operation
3.1. Initial Setup
3.1.1. Check
.
Drain screen is in place
Spay arms and end plugs are secure
3.1.2. Chemicals
Assure there is a sufficient supply of chemicals before beginning a shift.
Note: Use only commercial-grade detergents and rinse aids recommended by your
chemical professional. Do not use detergents and rinse aids formulated for residential
dishwashers.
Low Temperature chemical-sanitizing dishwasher/glasswasher must not exceed 6%
sodium hypochlorite solution (bleach) as the sanitizing agent. Higher levels may damage
stainless or components.
Follow the directions precisely that are on the litmus paper vial and test the water on the
surface of the bottom of the glasses. Concentration should be 50 p.p.m. minimum to 100
p.p.m. maximum. If concentration is incorrect contact your chemical supplier.
3.1.3. Filling the Machine
With the power ON, toggle and F/Sa c FILL
until the water level in the wash tank reaches the water fill line.
3.2. General
Caution: Do not operate the dishwasher/glasswasher without the drain screen in
place. Debris getting into the pump impeller can damage the pump.
1.
Load a rack into the machine and close the door.
2.
With the machine filled to the proper level, toggle Fill/Start switch to the START
position the machine will automatically begin its cycle. The red cycle light will
illuminate while an operational cycle is in process.
3.
At the end of the shift, drain the machine by holding the Drain push button switch,
depressed position until the machine is completely drained. To avoid running the
pump dry, do not hold the Drain push button switch any longer than necessary.
4.
Remove and clean the drain screen. Remove and clean the spray arms. (See wall
chart instructions).
5.
Replace the drain screen and spray arms.
6.
Inspect your dishwasher/glasswasher interior for lime deposits.
The chemicals and water level must be programmed by a qualified chemical specialist.
The de-liming agents are highly caustic and de-liming must be done by qualified chemical specialist.
Operation
Page 9
MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
3.2.1. Pre-Scrapping
It is essential that the operator thoroughly understand the importance of pre-scrapping the
wares before loading them. The L-1Xe is equipped with a removable drain screen. The
drain screen can be easily removed for cleaning between Operational Cycles of the
dishmachine. Properly pre-scrapping should permit the glasswasher/dishmachine to
operate for an entire shift before needing to remove and clean the drain screen.
3.2.2. Proper Chemical Dosage
The amount of chemical delivered, whether it is detergent, sanitizer or rinse aid, is
determined by its respective cam on the cam timer.
Cam number 2 runs the detergent pump
Cam number 5 runs the sanitizer pump
Cam number 6 runs the rinse aid pump
These cams were set at the factory but must be adjusted after final installation to
maximize efficiency of chemical use (see section 4.1.1 Cam Adjustment.)
3.2.1. Proper Filling
The #4 cam must be adjusted properly to automatically dispense the correct amount of
water each cycle. When the #4 cam switch actuator rides down into the cam groove, the
water solenoid valve will activate to fill the machine. This cam only controls the duration
the water valve is activated dispensing water inside the wash tank (see section 4.1.1 Cam
Adjustment).The #4 cam is properly adjusted when the water level in the wash tank is at
F L ca b a a a. I a ca,
install a Pressure Regulator Valve (PRV) to maintain proper water levels between cycles.
If water level is too low, wash pump will cavitate, become noisy and reduce pressure to
wash arms.
3.2.2. Water Pump
The water pump takes in water from the drain sump and pumps it to the spray nozzles at a
rate of 52 gallons per minute and a pressure at the nozzles of approximately 7 to 10 PSI.
After being released through the spray arms and washing or rinsing the dishes, the water
runs down the pan to the sump, through drain screen, and back to the pump.
A 115-volt, 1 HP motor operating at 3450 RPM, drives the pump. The impeller is mounted
with a right-a a a 5/8 a a, c c
armature shaft.
3.2.3. Pump Cavitation
By listening to the normal pumping sound of the motor it can be determined if there is
insufficient water in the machine, as you will hear a hesitation in the normal pumping
rhythm, which is created by the air getting into the pump. Cam 4 can be adjusted to
increase the amount of water that is automatically fed into the machine during a cycle (see
section 4.1.1 Cam Adjustment).
Operation
Page 10
MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
3.2.4. Deliming Dishmachine
Here are some recommendations for deliming dishmachine:
If your dishmachine uses chemical sanitizers like chlorine, iodine, consult your chemical
professional to verify chemicals used for deliming. Mixing chemicals can create a
noxious gas or acid which could be harmful to humans or damage yourmachine.
You have to manually drain the tank and fill with fresh water before adding the deliming
agent.
After filling the machine with fresh water, add the correct amount of deliming solution as
recommended by the chemical manufacturer. Close the door.
T c ca b a D a the
machine until the interior lime build up has been dissolved.
After deliming, inspect the inside of the machine.
If it is not deli, aa, instructions.
I ac , , c Na , a a the
machine.
Run for several minutes to remove residual deliming solution.
Drain and refill the machine.
The chemicals and water level must be programmed by a qualified chemical specialist.
The de-liming agents are highly caustic and de-liming must be done by qualified chemical specialist.
11
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MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
4.
Maintenance
The maintenance procedures detailed in this section are to be performed by qualified personnel.
4.1. Timer assembly
The standard timer assembly consists of a (90 sec per revolution) motor turning a common shaft, which,
in turn, rotates eight cams. As the cams rotate, they control various functions and the sequence of the
operational cycle.
The individual function of each of the 8 cams is identified by a label on the timer assembly. Cams 1
through 8 are positioned from left to right beginning with t START ca (ca 1).
Timer Assembly Label
All cams can be user adjusted except for cams 1, 3, and 8. The cam positions are all set at the factory
and only the cams controlling the chemical pumps and water fill (cams 2, 4, 5 & 6) should ever need
adjusting. Each micro switch on the timer assembly is turned on and off by the cam its actuator rides on.
For all of the cams, except cams 1, 7 and 8, its corresponding switch is ON when its actuator is down in
the cam groove. (Cams 1, 7 and 8 are reverse acting and are turned ON when the micro switch actuator
is up out of the groove.) Opening the groove of any cam other than cams 1, 7 or 8 will increase the
amount of time that the micro switch is held ON. The cams are slip-fit and a cam adjustment wrench is
provided (a small screw driver or the edge of a table knife can also work to adjust the cams).
4.1.1. Cam Adjustment
The two sides of each cam connect to the shaft with a slip-fit so all cam adjustments are made
by rotating one side of the cam on the shaft to either increase or decrease the size of the cam
groove.
1.
Turn off the circuit breaker providing power to the machine before gaining access to the
timer assembly.
Caution: One of he erminals on he main poer sich remains ho een hen he
machines main poer sich is rned offso turn the power off at the circuit breaker.
2.
Remove the (4) 1032 c c b a.
3.
Using the timer assembly label, determine which cam is to be adjusted. Double check by
counting over from cam 1 to the cam to be adjusted.
4.
Determine which edge of the cam groove to be adjusted is the leading edge (contacts the
limit switch actuator first when the shaft is rotating) and which edge of the groove is the
trailing edge. The leading edge of the cam groove determines when in the cycle the control
action begins and should not be changed.
5.
Adjust the trailing edge of the cam groove by rotating the appropriate side of the cam in the
c ca ca ca ; ca
decreasing the total time that switch will be held ON.
Addendum
Operation
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MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
4.2. Quick service guide
MODELS: L-1Xe UNDER COUNTER
TECHNICAL ISSUE
CAUSE
SOLUTION
Wash Pump motor will not shut off
Delimer switch in delime position
Flip to NORMAL position
Faulty delimer switch
Replace switch
Faulty contactor
Replace contactor
Continues cycles
Faulty #1 micro switch (start/stop)
Replace switch
Faulty start/fill switch
Replace switch
Wash tank heater not working
Faulty float switch
Replace switch
Faulty heater contactor
Replace contactor
Faulty heater
Replace heater
Machine does not drain
Faulty #3 micro switch (drain)
Replace switch
Faulty drain pump
Replace pump
Does not hold water
Faulty #3 micro switch (drain)
Replace switch
Defective drain motor
Replace drain motor
Drain hose not secured properly
Secure drain hose
Tank overflows overnight
Debris in water Solenoid Valve
Clean and replace valve
diaphragm
Water leaks out of Vacuum
Breaker
Dirty or defective vacuum breaker kit
assembly
Clean or replace internal parts
Faulty check valve
Replace check valve
Wash Pump motor not running
Faulty door reed switch
Replace reed switch
Faulty 7th micro switch
Replace switch
Faulty motor contactor
Replace contactor
Timer does not rotate
Faulty Start/ Fill Switch
Replace switch
Faulty #1 micro switch
Replace switch
Faulty timer motor
Replace motor assembly
Machine does not fill
Faulty #4 Micro switch
Replace switch
Debris inside water solenoid valve or
Clean and replace valve
Faulty valve
diaphragm
Faulty water solenoid coil
Replace solenoid coil
Delimer switch in wrong position
Switch to NORMAL position
Sanitizer pump does not run
Faulty 5th micro switch
Replace switch
Faulty sanitizer pump motor
Replace motor
Operation
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MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
4.3. Troubleshooting
PROBLEM
LIKELY CAUSE
SOLUTION
Machine inoperative
Power off at circuit breaker
Reset circuit breaker
Defective power switch
Replace power switch
P/N: 15524.00
Defective timer assembly motor
Replace timer assembly
motor
Pump Motor inoperative
Door is open
Close door
Control drawer is pulled out
Secure control drawer
Defective reed (door) switch
Replace reed (door) switch
Defective timer assembly (Cam 7)
Replace timer assembly*
Defective pump motor contactor
Replace contactor
Defective pump motor
Replace pump motor
Pump Motor runs with door
open
Defective reed (door) switch
Replace reed (door) switch
Defective pump motor contactor
Replace contactor
Motor runs continuously
Delimer switch is on
Turn off delimer switch
Wash Tank Heater (no
heat)
Defective heater thermostat
Replace thermostat
Defective heater contactor
Replace heater contactor
Defective timer assembly (Cam 8)
Replace timer assembly *
Defective heater
Replace heater
Defective float switch
Replace float switch
Wash Tank Heater (never
turns off)
Defective heater thermostat
Replace thermostat
Defective timer assembly (Cam 8)
Replace timer assembly *
Defective heater contactor
Replace heater contactor
Defective float switch
Replace float switch
Low heat during operation
Low incoming water temperature
Turn up supply water heater
(below 140° F)
Insulate supply water pipe
Thermostat out of adjustment
Adjust thermostat
Defective wash heater
Replace heater
Low spray arm water flow
Limed up spray arm nozzles
De-lime spray arm nozzles
With power on, activating
start switch does not begin
cycle
Defective fill/start switch (cycle light
will not light either)
Replace fill/start switch
Machine will not cycle
Defective timer #1 micro switch
Replace micro switch *
*The timer assembly motor or micro switches can be replaced independently if that is the only
component that has failed.
Operation
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14
MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
PROBLEM
LIKELY CAUSE
SOLUTION
Start switch requires more
than 1-second activation to
run cycle
Defective (Instant Start) ice cube
relay
Replace ice cube relay
Activating fill switch does
not fill machine
Defective fill/start switch
Replace fill/start switch
Defective water solenoid valve
Replace water solenoid valve
F a
Defective water solenoid valve
Replace water solenoid valve
Defective fill/start switch
Replace fill/start switch
Defective timer #4 micro switch
Replace micro switch *
Activating drain switch
does not drain machine
Drain hose is kinked
Un-kink drain hose
Defective drain switch
Replace drain switch
Defective drain motor
Replace drain motor
Detergent pump does not
run
Defective detergent pump motor
Replace pump motor
Defective timer #2 micro switch
Replace micro switch*
Sani pump does not run
Defective sani pump motor
Replace pump motor
Defective timer #5 micro switch
Replace micro switch*
Rinse aid pump does not
run
Defective rinse pump motor
Replace pump motor
Defective timer #6 micro switch
Replace micro switch*
Activating detergent primer
switch does not run pump
Defective sani/detergent primer
switch
Replace primer switch
Defective detergent pump motor
Replace pump motor
Activating sani primer
switch does not run pump
Defective sani/detergent primer
switch
Replace primer switch
Defective sani pump motor
Replace pump motor
Activating rinse primer
switch does not run pump
Defective rinse primer switch
Replace primer switch
Defective rinse pump motor
Replace pump motor
Counter does not
increment
Defective counter
Replace counter
Defective timer #3 micro switch
Replace timer micro switch*
Wash tank temperature
gauge displays wrong
temperature
Defective temperature display
board or thermocouple
Replace temperature display
board or the thermocouple
Delime switch does not
activate pump motor
Defective delime switch
Replace delime switch
Defective pump motor
Replace pump motor
*The timer assembly motor or micro switches can be replaced independently if that is the only
component that has failed.
17
Page
MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
Operation
5.
Addendum for Machines Installed in the City of Chicago
A ab c a cca a a, a a
, aa a aa c.
D a a a b a a a ac a b
properly scraped and pre-rinsed and shall be stacked in racks or trays so as to avoid overcrowding,
and so as to per a a a ac a ac ac .
I ac a, -use eating and drinking utensils shall be washed in water containing a
suitable detergent at a temperature of 120F to 140F or other method approved by the Department
Ha.
T a a a a b ca a a a ca
reasonably clean. An effective concentration of detergent in the wash water shall be maintained at all
.
Bacca a shall consist of exposure of all surfaces of dishes and utensils being washed
to a rinse of clean water, at a temperature of not less than 180F or other method approved by the
Da Ha.
A a ac a aa a e not less than 15 or more than 25 pounds
per square inch on the fresh water line at the machine and not less than 10 pounds per square inch
at the rinse nozzles. A suitable gauge cock shall be provided immediately upstream from the final
rinse sprays to permit checking the flow of the final rinse water. An easily readable thermometer
accurate to a 2F. shall be provided on both the wash and rinse water lines of the dishwashing
machine which will indicate the temperature of the water solution there i.
Da ac a b ca a a c ac a. T a a
and rinse sprays or jets shall be so designed that a forceful stream of water will reach all surfaces of
the utensils when they are properly racked. These parts shall be thoroughly cleaned at least once
each day. The pumps and the wash and rinse sprays or jets shall be designed that a forceful stream
of water will reach all surfaces of the utensils when they are properly racked. These pars shall be
readily accessible for inspection and cleaning.
A bacca a, a ca a b a a c ab
floor in a clean, dry place, protected from flies, splash, dust, overhead leakage and condensation, and
other contamination. Containers and utensils shall be inverted, covered, or otherwise protected from
caa .
Drain racks, trays and shelves shall be made of non-corrodible material and shall be kept clean. In
handling containers and utensils the surfaces thereof which come in contact with food or drink shall
not be touched by the hands, except during the process of washing. Tables for clean and dirty dishes
and food shall be so arranged that the dirty dishes will be as far removed from the food and clean
dishes as may be possible.
All single service articles and utensils shall be purchased in sanitary cartons and stored in a clean,
dry place until used, and after removal from the cartons, these articles shall be handled in such a
manner as to prevent contamination.
Please note the following procedures must be followed for City of Chicago Approval:
1.
All low energy models must have low level sani-alarms, both visual and audio.
2.
All models must have a City of Chicago approval data label affixed to the machine.
3.
Chlorine sanitizer must be a minimum of 100 PPM.
18
Page
MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
APPENDIX A: OPERATOR & CLEANING INSTRUCTIONS
19
Page
MODEL L-1Xe INSTALLATION & OPERATION MANUAL Rev. 1.04
6. ELECTRICAL DIAGRAM
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