Jackson / Dalton Dishwasher JP24LT Service Manual

SERIES JP

-

24 DISHWASHERS MODELS

Installation Requirements

JP-24/F, JP-24B/BF, JP-24LT/LTF

HOT WATER OR CHEMICAL SANITIZING

UNDERCOUNTER DISHMACHINE

INSTALLATION AND OPERATION

INCLUDES:

-Warranty Policy -

-Operating Instructions -Basic Functions of Dishwasher

-Description of Components -Maintenance and Care

-Troubleshooting Guide -Wiring Diagrams

WORLD HEADQUARTERS & MANUFACTURING OPERATIONS

Highway 25E, P.O. Box 1060

Barbourville, KY 40906

888/800-JMSC, Fax [phone]

July 25, 1997 P/N 7610-011-39-40 Rev A

TABLE OF CONTENTS

BEFORE CONNECTING, OPERATING OR ADJUSTING THIS DISHWASHER, PLEASE READ THIS MANUAL CAREFULLY TO
FAMILIARIZE YOURSELF WITH YOUR JACKSON DISHWASHER AND ITS PROPER OPERATION.

THIS MANUAL CONTAINS IMPORTANT OPERATING, SAFETY AND MAINTENANCE INFORMATION ON YOUR
DISHWASHER. YOU MUST FOLLOW THE INSTRUCTIONS GIVEN IN THIS MANUAL TO ENSURE THAT YOUR WARRANTY
REMAINS IN FORCE.

FOR YOUR CONVENIENCE, THIS MANUAL CONSISTS OF THE FOLLOWING SECTIONS IN THIS ORDER:

SECTION PAGE

GENERAL 2
CONCEALED DAMAGE OR MISSING PARTS 3
INSTALLATION PROCEDURES 3

CHEMICAL DISPENSING INSTRUCTIONS 8
OPERATING INSTRUCTIONS 9
WIRING DIAGRAM 11, 12, 13
NATIONWIDE MAINTENANCE & REPAIR CENTERS Back Cover

Dishwasher Certification

The UL mark on this dishwasher indicates this product is listed with the Underwriters
Laboratory. This agency conducts tests and evaluations of product for compliance to UL
Standards for Safety. All Jackson Dishwashers meet or exceed these standards.

The NSL seal on this dishwasher indicates this product meets or exceeds all standards and
requirements for dishwashing machines by the National Sanitation Foundation. The NSF seal
is widely recognized as a sign that the product to which it is affixed complies with all public
health and safety codes for Foodservice Equipment.

Dishwasher Record

FOR FUTURE USE, PLEASE RECORD THE DISHWASHER INFORMATION IN THE SPACES BELOW:

MODEL NUMBER __________________ DEALER _____________________

VOLTAGE/PHASE __________________ DATE INSTALLED .
SERIAL NUMBER __________________ SERVICE AGENCY.

GENERAL

The Installation and Operation Manual covers the installation of the Series JP-24 dishwasher and operating procedures. Please complete all
plumbing connections prior to arranging for electrical requirements.

IMPORTANT — PLEASE READ CAREFULLY — NOTE TO ELECTRICAL INSTALLER: THE RINSE HEATER RELAY HAS BEEN
TEMPORARILY DISABLED SO THAT THE MACHINE'S INTERNAL BOOSTER TANK CAN FILL WITH WATER BEFORE TURNING ON
THE HEATING ELEMENT. A QUALIFIED SERVICEMAN MUST RECONNECT THE WIRE (ORANGE/WHITE) TO THE RINSE HEATER
RELAY COIL (TAGGED) AFTER THREE CYCLES OF OPERATION AND THE WASH TANK IS FULL OF WATER. THE CIRCUIT
BREAKER FEEDING THE UNIT SHOULD BE TURNED OFF BEFORE DOING THIS.

Once the machine is initially filled, the dishwashing cycle consists of: the machine washes a rack of dishes, drains the wash water, and then
rinses with fresh water which remains in the machine to wash the next rack of dishes. During the rinse, detergent and rinse chemical should
be injected into the wash water.

MACHINE NOMENCLATURE

Hot-water sanitizing Models JP -24/F and JP-24B/F must have a minimum 180 Deg. F rinse water temperature at 20 PSI +/-5
PSI water flow pressure to assure proper sanitization of ware.

The JP -24 series dishwasher is not supplied with chemical dispenser pumps for dispensing detergent, rinse additive or
sanitizer (JP -24LT/F). Contact an authorized detergent representative for information about a chemical dispenser.

Low-temperature chemical sanitizing Model JP-24LT/F requires a minimum of 50 PPM of 5.25 % sodium hypoclorite (liquid
bleach) be injected in the final rinse line during the rinse. Do not operate dishwasher as a low-temperature chemical sanitizing
machine without a properly installed, N.S.F. recognized chemical dispenser.

The "B" designation in the model number indicates the unit has a built-in hot water booster tank, requiring a 140 Deg. F. hot
water supply. Units without the "B" require a 180 Deg. F. hot water supply. The "LT" designation indicates a low-temperature
model requiring a minimum 120 Deg. F. and 140 Deg. F. maximum hot water supply.

Free standing units not installed under a countertop will require atop and side panels, indicated by a "F" designation in the
model number.

IMPORTANT SAFETY INSTRUCTIONS

Please read all instructions before using this dishwasher. Safety precautions in this manual are preceded by the words
"DANGER", "WARNING" or "CAUTION" and "NOTE" are very inmportant. DANGER is used to indicate the presence of a
hazard which will cause severe personal injury, death or substantial property damage if the statement is ignored. WARNING
is used to indicate the presence of a hazard which can cause severe personal injury, death or substantial property damage if
the statement is ignored. CAUTION is used to indicate the presence of a hazard which will or can cause minor personal injury
or property damage if the statement is ignored. NOTE is used to notify personnel of installation, operations, or maintenance
information which is important, but not hazard related.

NATIONWIDE MAINTENANCE AND REPAIR CENTERS

If repairs are required, please call one of the Jackson Maintenance & Repair Centers from the list provided on the rear cover
of this manual. Your Jackson Maintenance & Repair Center is fully equipped to perform expert service on your dishwasher
and will be happy to assist you with any questions about your dishwasher. If needed, a service manual for your dishwasher
may be purchased through this center.

ORDERING REPLACEMENT PARTS

When replacment parts are required, call the Maintenance & Repair Center closest to you and give them the model and serial
number of your dishwasher and the part number or description of the part you wish to order.

UNPACKING/INSPECTION OF DISHWASHER

UNPACKING/INSPECTION

Before any connections are made, visually check the entire machine for any possible shipping damage or missing parts. If any
damage is found proceed to "Concealed Damage or Missing Parts".

Steps:

1. Remove all protective packing material from machine.

2. Place machine in its operating location and remove skid.

CAUTION: Insure weight of machine is evenly distributed when
removing bolts holding wooden skid to machine.

3. The following parts should be inside machine: One (1) wash spray
arm, two (2) rinse spray arms— upper and lower, four (4) adjusting
feet, one (1) Instruction Manual, two (2) dish racks, one (1) pan
strainer, one (1) warranty registration card, one (1) service network
map.

4. Remove the tape from around the wash tank pan strainer, wash and
rinse arms.

5. Inspect and check the following parts:

a. Upper and lower rinse arms: check and make sure they rotate

freely and remove by unscrewing. Check for end caps in each
end of arm and tighten if needed.

b. Lower wash arm: check same as rinse arm.
c. Rack slides: check to see if they are tight and rack slides into
machine properly.

CONCEALED DAMAGE OR MISSING PARTS

MPORTANT: FOR YOUR PROTECTION, PLEASE READ AND OBSERVE THE FOLLOWING:

The dishwasher has been thoroughly inspected and carefully packed before leaving our warehouse.
IMPORTANT: Inspect the dishwasher for any of the following damage conditions before installation:

1. The door does not close firmly against the hood because the door is warped or the hinge is damaged.

2. If there is any visible damage to exterior or interior of the dishwasher.
If any of the above conditions exist, DO NOT OPERATE THE DISHWASHER.

Concealed loss or damage means loss or damage which does not become apparent until the dishwasher has been

unpacked. The contents may be damaged in transit due to rough handling even though the carton may not show external
damage.

If it is found that the shipment has concealed damage PLEASE DO NOT RETURN IT TO US, but notify the carrier (within 48
hours) asking them to send their agent to fill out an inspection report. Save the cartons so he may see them and be sure to
note in the report any black marks, creases, tears, crushed corners or any other marks indicating rough handling. Also, notify
the Dealer where the dishwasher was purchased immediately.

If it is discovered that there are missing parts such as: strainers, spray arms, rinse arms, service manual or racks, please notify
the Dealer where the dishwsher was purchased.

VENTILATION OF DISHWASHER

The dishwasher should be located with provision for venting into adequate air conditioning, exhaust hood or ventilation system.
This is essential to permit efficient removal of the steam exhaust. Make certain the exhaust system is an acceptable system in
accordance with proper ventilation codes and standards.

INSTALLATION PROCEDURES

Procedure 1: INSTALLATION OF TOP AND SIDES ON MODELS WITH "F" DESIGNATION

Before installing machine or placing machine into a permanent location, install the top and side panels. Rear lower enclosure
panel is installed by factory.

Steps:

1. Install top and side panels with hardware supplied (taped) with
panels.

2. Insert lip of top and side panels under front flange to secure. Note:

Apply a bead of silicone sealer along length of lip before inserting
under front flange.

Procedure 2: INSTALLATION OF DISH­ WASHER UNDER STAINLESS
STEEL DISHTABLE

Steps:

1. Position dishwasher under dishtable in permanent location and
squarely against the guide bracket on dishtable.

2. Fasten guide bracket on dishtable to side panel of dishwasher by
drilling hole in outer panel only.

CAUTION: Install stop on drill to prevent drilling through interior

wall of dishwasher.

INSTALLATION OF DISHWASHER
UNDER POROUS COUNTER-TOP

If dishwasher is installed under a porous counter-top, it is the
installer's responsibility to provide protection of material from steam
damage.

Procedure 3: LEVELING OF DISHWASHER

The dishwasher must be level before any connections are made.
Steps:

1. Install all four (4) leveling feet into mating threaded fasteners at each corner of machine. Feet are supplied with machine.

2. Turn leveling feet in or out to adjust machine square and to proper height. Adjust left to right and front to back,

Procedure 4: PUMPED DRAIN (PRESSURE) DRAIN CONNECTION TO
INDIRECT DRAIN LINE

Dishwasher has a pumped (pressure) drain capable of pumping waste water to a height of 24 inches from floor to the kitchen's
drain system. The dishwasher is supplied with a 8-foot long drain hose that extends from the right rear side of machine. Drain
hose is one (1) inch inside diameter.

WASTE PIPE MUST BE ABLE TO HANDLE FLOW FROM THE PRESSURE DRAIN CAPABLE OF PUMPING TWELVE
(12) GALLONS PER MINUTE.

MOST PLUMBING CODES REQUIRE INDIRECT DRAIN LINE TO HAVE AIR GAP. ALL PLUMBING CONNECTIONS
MUST COMPLY WITH ALL SANITARY, SAFETY AND PLUMBING CODES.

Steps:

1. Install drain hose to waste line and secure with clamp. NOTE: Install drain hose to 1 1/2 (minimum pipe size) "P" trap.

NOTE: To aid in easy removal of machine from wall or undercounter for servicing — leave sufficient drain hose looped at rear
of machine to move machine out for servicing.