Jackson CJ-20 Service Manual
CJ-20
HOT WATER SANITIZING
UNDERCOUNTER DISHMACHINE
INSTALLATION OPERATIONINSTALLATION OPERATION
MANUALMANUAL
Visit Jackson on the Internet at:
www.jacksonmsc.com
October 27, 2000 P/N 7610-002-16-69
ALL NEW JACKSON DISHWASHERS ARE WARRANTED TO THE ORIGINAL PURCHASER TO BE FREE FROM
DEFECTS IN MATERIAL OR WORKMANSHIP, UNDER NORMAL USE AND OPERATION FOR A PERIOD OF (1) ONE
YEAR FROM THE DATE OF PURCHASE, BUT IN NO EVENT TO EXCEED (18) EIGHTEEN MONTHS FROM THE DATE
OF SHIPMENT FROM THE FACTORY.
Jackson MSC agrees under this warranty to repair or replace, at its discretion, any original part which fails under normal use due to faulty
material or workmanship during the warranty period, providing the equipment has been unaltered, and has been properly installed, maintained and operated in accordance with the applicable factory instruction manual furnished with the machine and the failure is reported to
the authorized service agency within the warranty period. This includes the use of factory specified genuine replacement parts, purchased
directly from a Jackson authorized parts distributor or service agency. Use of generic replacement parts may create a hazard and void warranty certification.
The labor to repair or replace such failed part will be paid by Jackson MSC, within the continental United States, Hawaii and Canada, during the warranty period provided a Jackson MSC authorized service agency, or those having prior authorization from the factory, performs
the service. Any repair work by persons other than a Jackson MSC authorized service agency is the sole responsibility of the customer.
Labor coverage is limited to regular hourly rates, overtime premiums and emergency service charges will not be paid by Jackson MSC.
Accessory components not installed by the factory carry a (1) one year parts warranty only. Accessory components such as table limit switch es, pressure regulators, pre rinse units, etc. that are shipped with the unit and installed at the site are included. Labor to repair or replace
these components is not covered by Jackson MSC.
This warranty is void if failure is a direct result from shipping, handling, fire, water, accident, misuse, acts of god, attempted repair by unauthorized persons, improper installation, if serial number has been removed or altered, or if unit is used for purpose other than it was originally intended.
TRAVEL LIMITATIONS
Jackson MSC limits warranty travel time to (2) two hours and mileage to (100) one hundred miles. Jackson MSC will not pay for travel time
and mileage that exceeds this, or any fees such as those for air or boat travel without prior authorization.
WARRANTY REGISTRATION CARD
The warranty registration card supplied with the machine must be returned to Jackson MSC within 30 days to validate the warranty.
REPLACEMENT PARTS WARRANTY
Jackson replacement parts are warranted for a period of 90 days from the date of installation or 180 days from the date of shipment from the
factory, which ever occurs first.
PRODUCT CHANGES AND UPDATES
Jackson MSC reserves the right to make changes in design and specification of any equipment as engineering or necessity requires.
THIS IS THE ENTIRE AND ONLY WARRANTY OF JACKSON MSC. JACKSON’S LIABILITY ON ANY CLAIM OF ANY KIND, INCLUDING
NEGLIGENCE, WITH RESPECT TO THE GOODS OR SERVICES COVERED HEREUNDER, SHALL IN NO CASE EXCEED THE PRICE
OF THE GOODS OR SERVICES OR PART THEREOF WHICH GIVES RISE TO THE CLAIM.
THERE ARE NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING FOR FITNESS OR MERCHANTABILITY, THAT ARE NOT SET
FORTH HEREIN, OR THAT EXTEND BEYOND THE DURATION HEREOF. UNDER NO CIRCUMSTANCES WILL JACKSON MSC BE
LIABLE FOR ANY LOSS OR DAMAGE, DIRECT OR CONSEQUENTIAL, OR FOR THE DAMAGES IN THE NATURE OF PENALTIES,
ARISING OUT OF THE USE OR INABILITY TO USE ANY OF ITS PRODUCTS.
ITEMS NOT COVERED
This warranty does not cover cleaning or deliming of the unit or any component such as, but not limited to, wash arms, rinse arms or strain-
ers at anytime. Nor does it cover adjustments such as, but not limited to timer cams, thermostats or doors, beyond 30 days from the date
of installation. In addition, the warranty will only cover the replacement of wear items such as curtains, drain balls, door guides or gaskets
during the first 30 days after installation. Also, not covered are conditions caused by the use of incorrect (non-Commercial) grade detergents, incorrect water temperature or pressure, or hard water conditions.
TABLE OF CONTENTS
GENERAL PAGE
Specifications .............................................................................................. 1
INSTALLATION INSTRUCTIONS
Unpacking..................................................................................................... 2
Plumbing Connections.................................................................................. 2
Electrical Connections.................................................................................. 2
Chemical Dispensing Equipment.................................................................. 3
Chemical Timer Adjustment.......................................................................... 4
Installation Checklist..................................................................................... 5
OPERATIONAL INSTRUCTIONS
Preparation.................................................................................................... 6
Power Up...................................................................................................... 6
Initial Fill........................................................................................................ 6
DAILY OPERATION
Preparing the Dishes.................................................................................... 6
Daily Machine Preparation........................................................................... 6
Washing a Rack of Ware............................................................................. 6
Shut Down and Cleaning............................................................................. 9
DIMENSIONS............................................................................................................. 10
JACKSON MAINTENANCE & REPAIR CENTER NETWORK................................. 11
SCHEMATICS
ELECTRICAL DIAGRAM 208-230 VOLT, 60 HERTZ, 1 PHASE................ 18
ELECTRICAL DIAGRAM 12 VOLT CIRCUIT.............................................. 19
WIRING DIAGRAM...................................................................................... 20
IMPORTANT INFORMATION DATA SHEET.............................................................. 21
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SPECIFICATIONS of CJ-20
PERFORMANCE/CAPABILITIES
OPERATING CAPACITY (RACKS/HOUR)
RACKS PER HOUR 24
DISHES PER HOUR 600
GLASSES PER HOUR 600
OPERATING CYCLE (SECONDS)
SHORT CYCLE
WASH TIME 105
RINSE TIME 15
TOTAL CYCLE TIME 120
LONG CYCLE
WASH TIME 225
RINSE TIME 15
TOTAL CYCLE TIME 240
TANK CAPACITY (GALLONS)
WASH TANK (MINIMUM) 8.7
RINSE TANK 2.1
ELECTRICAL REQUIREMENTS
WASH PUMP MOTOR HORSEPOWER 1
VOLTS PHASE AMPS
208 1 44.1
230 1 48.2
WATER REQUIREMENTS
INLET TEMPERATURE 140
GALLONS PER RACK .98
GALLONS PER HOUR 23.5
WATER LINE SIZE I.P.S. (Minimum) 1/2”
DRAIN LINE SIZE I.D. 1”
FLOW PRESSURE P.S.I. (Optimum) 20
FRAME DIMENSIONS
WIDTH 23”
DEPTH 23 3/4”
HEIGHT 32 1/4”
MAXIMUM INSIDE CLEARANCE 14”
°F
TEMPERATURES
WASH---°F (MINIMUM) 150
RINSE---°F 180
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DETAIL OF THE CJ-20 DATA PLATE
SERIAL NO.:
MODEL:
ELECTRICAL RATINGS
WASH MOTOR 1 HP 3.2 A
DRAIN PUMP MOTOR 1/20HP 0.1 A 0.1 A
WASH HEATER 2.5 KW 12.0 A 13.2 A
RINSE HEATER 6 KW 28.8 A 31.7 A
TOTAL AMP LOAD 44.1 A 48.2 A
FLOW PRESSURE 20 PSI
INCOMING WATER TEMPERATURE (MINIMUM) 140°F
WASH TEMPERATURE (MINIMUM) 150°F
RINSE TEMPERATURE (MINIMUM) 180°F
WASH TIME 105 SEC
RINSE TIME 15 SEC
OPERATING PARAMETERS
1 PH 60Hz 2 WIRE
208 VOLTS 230 VOLTS
3.2 A
3 KW
7.3 KW
MANUFACTURER’S LOGO
MODEL DESIGNATION
(I.E. “CJ-20”)
AMPERAGE LOAD
INFORMATION
MINIMUM OPERATING
PARAMETERS (SEE NOTE #1)
CE LOGO (SEE NOTE #2)
MANUFACTURER’S
ADDRESS INFORMATION
NSF LOGO (SEE NOTE #3)
UL LOGO (SEE NOTE #4)
DO NOT USE THE ABOVE DATA PLATE TO REPRESENT YOUR DISHMACHINE. THE DATA PLATE ABOVE IS A GENERIC
REPRESENTATION USED ONLY TO SHOW YOU WHERE TO LOCATE INFORMATION. Under no circumstance should the data
plate be removed from the unit. The data plate is essential in identifying the particular characteristics of your machine and
is of great benefit to installers, operators, and maintenance personnel. It is recommended that you copy down the essential
information on the final page in this manual for reference before installation.
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GENERAL NOTES SECTION
Before connecting, operating, or adjusting any of the dishmachines covered in this manual, please carefully read through the entire
manual to familiarize yourself with the machine and its proper operation. This manual contains important operating, safety, and main tenance information concerning your dishmachine. You must follow the instructions and guidelines provided in this manual to ensure
that your warranty remains in effect.
FOR SERVICE PERSONNEL: Jackson MSC Inc. provides technical support for all of the dishmachines detailed in this manual. We
strongly recommend that you refer to this manual before making a call to our technical support staff. Please have this manual with
you when you call so that our staff can refer you, if necessary, to the proper page. Technical support is available from 8:00 a.m. to
5:00 p.m. (EST), Monday through Friday. Technical support is not available on holidays. Contact technical support toll-free at 1-888800-5672. Please remember that technical support is available for service personnel only. Non-service personnel should refer to the
list of provided service agencies in this manual for local service support.
NOTES CONCERNING THE CJ-20 DATA PLATE:
NOTE 1: This area of the data plate denotes the minimum parameters that must be met in order for your dishmachine to operate at
the designed level of efficiency. Not meeting the required parameters can result in substandard performance of the dishmachine. Do
not refer to the data plate example in this manual for the parameters of your machine; instead, refer to the data plate affixed to the
machine. If you are unsure of whether or not you are meeting the required minimum parameters, contact your nearest Jackson
authorized service agency.
NOTE 2: The CE logo on the data plate indicates that this machine has been determined to comply with all applicable European
Standards for this type of equipment.
NOTE 3: The NSF logo on the data plate indicates that this machine has been approved to be listed under NSF Standard 3 by NSF
International Inc. All of Jackson MSC’s Standard 3 approved dishmachines are listed on the NSF website at www.nsf.org. For more
information concerning NSF International, their testing procedures and their standards in general, you may write to: NSF
International Inc., 789 Dixboro Road, Ann Arbor, MI., 48105.
NOTE 4: The UL logo on the data plate indicates that this machine is Listed by Underwriters Laboratories Inc. Representative samples of this product have been evaluated by UL and meet applicable U.S.and Canadian safety standards and requirements.
Dishmachines are evaluated under UL Standard 921. For more information concerning the UL logo and UL standards in general,
you may write to: Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL., 70072; or you may visit their website at
www.ul.com.
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INSTALLATION INSTRUCTIONS
VISUAL INSPECTION: Before installing the unit, check the container and machine for damage. A damaged container is an indicator that there may be some damage to the machine. If there is
damage to both the container and machine, do not throw away the
container. The dishmachine has been inspected and packed at
the factory and is expected to arrive to you in new, undamaged
condition. However, rough handling by carriers or others may
result in there being damage to the unit while in transit. If such a
situation occurs, do not return the unit to Jackson; instead, contact
the carrier and ask them to send a representative to the site to
inspect the damage to the unit and to complete an inspection
report. You must contact the carrier within 48 hours of receiving
the machine. Also, contact the dealer through which you purchased the unit.
UNPACKING THE DISHMACHINE: Once the machine has been
removed from the container, ensure that there are no missing
parts from the machine. This may not be obvious at first. If it is discovered that an item is missing, contact Jackson immediately to
have the missing item shipped to you.
LEVEL THE DISHMACHINE: The dishmachine is designed to
operate while being level. This is important to prevent any damage to the machine during operation and to ensure the best
results when washing ware. The unit comes with adjustable bullet
feet, which can be turned using a pair of channel locks or by hand
if the unit can be raised safely. Ensure that the unit is level from
side to side and from front to back before making any connections.
It is recommended that a water shut-off valve be installed in the
water line between the main supply and the machine to allow
access for service. The water supply line is to be capable of 20
PSI “flow” pressure at the recommended temperature indicated on
the data plate.
In areas where the water pressure fluctuates or is greater than the
recommended pressure, it is suggested that a water pressure regulator be installed.
Do not confuse static pressure with flow pressure. Static pressure
is the line pressure in a “no flow” condition (all valves and services
are closed). Flow pressure is the pressure in the fill line when the
fill valve is opened during the cycle.
It is also recommended that a shock absorber (not supplied with
the CJ-20 model) be installed in the incoming water line. This prevents line hammer (hydraulic shock), induced by the solenoid
valve as it operates, from causing damage to the equipment.
PLUMBING CHECK: Slowly turn on the water supply to the
machine after the incoming fill line and the drain line have been
installed. Check for any leaks and repair as required. All leaks
must be repaired prior to placing the machine in operation.
ELECTRICAL POWER CONNECTION: Electrical and grounding
connections must comply with the applicable portions of the
National Electrical Code ANSI/NFPA 70 (latest edition) and/or
other electrical codes.
PLUMBING THE DISHMACHINE: All plumbing connections must
comply with all applicable local, state, and national plumbing
codes. The plumber is responsible for ensuring that the incoming
water line is thoroughly flushed prior to connecting it to any component of the dishmachine. It is necessary to remove all foreign
debris from the water line that may potentially get trapped in the
valves or cause an obstruction. Any valves that are fouled as a
result of foreign matter left in the water line, and any expenses
resulting from this fouling, are not the responsibility of the manufacturer.
CONNECTING THE DRAIN LINE: The drain for the CJ-20 is a
pumped discharge drain. All piping from the machine to the drain
must be a minimum 1” I.P.S. and shall not be reduced. There must
also be an air gap between the machine drain line and the floor
sink or drain. If a grease trap is required by code, it should have a
flow capacity of 5 gallons per minute.
PRIMING THE DRAIN LINE: Prime the drain pump before use
when the machine is full of water. Lower the end of the drain hose
and allow some water to drain from the hose. Raise the end of the
hose and connect it to its installation position.
WATER SUPPLY CONNECTION: Ensure that you have read the
section entitled “PLUMBING THE DISHMACHINE” above before
proceeding. Install the water supply line (1/2” pipe size minimum)
to the to the vacuum breaker on the back of the machine. For ease
of service, the final water line connection to the machine should
be using a length of flexible hose, suitable for the pressure and
temperature of the incoming water.
Disconnect electrical power supply and place a tag at the disconnect switch to indicate that you are working on the circuit.
Refer to the data plate for machine operating requirements,
machine voltage, total amperage load and serial number.
To install the incoming power lines, route the power lines through
the grommet located at the rear of the machine. Install the service
wires (L1, L2 & Ground) to the appropriate terminals on the terminal block at the lower front right corner. The kick plate must be
removed first.
It is recommended that “DE-OX” or another similar anti-oxidation
agent be used on all power connections.
VOLTAGE CHECK: Ensure that the power switch is in the OFF
position and apply power to the dishmachine. Check the incoming
power at the terminal block and ensure it corresponds to the volt age listed on the data plate. If not, contact a qualified service
agency to examine the problem. Do not run the dishmachine if the
voltage is too high or too low. Shut off the service breaker and
mark it as being for the dishmachine. Advise all proper personnel
of any problems and of the location of the service breaker.
Replace the front kick panel and tighten down the screws.
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