Jackson 24A-AF User manual

SERIES 24
MODELS 24A-AF, 24B-BF-BP
HOT WATER SANITIZING UNDERCOUNTER
DISHMACHINE
FROM SERIAL NO. 23000
INSTRUCTION MANUAL
INCLUDES:
-Warranty Policy -Specifications
-Installation Requirements -Care and Cleaning
-Operating Instructions -Troubleshooting
-Illustrated Parts -Optional Drain Pump
-Service Agencies -Wiring Diagram
Highway 25E
P.O. Box 1060
Barbourville, KY 40906
1-888-800-JSMC(5762)
FAX [phone]
September 21, 1998 P/N 7610-100-35-00 Rev A

INDEX
WARRANTY Inside Front Cover
SPECIFICATIONS 2
CONCEALED DAMAGE 4
GENERAL INSTRUCTIONS (Installation) 5
INSTALLATION CHECKLIST 9
GENERAL INSTRUCTIONS(Operation) 10
GENERAL INSTRUCTIONS (Preventive Maintenance) 11
REMOVAL of RINSE and/or WASH HEAD ASSEMBLIES
(General Instructions) 12
TIMER for SERIES 24 DISHWASHERS 14
FUNCTION of SWITCHES, CIRCUIT BREAKER
and INDICATING LIGHTS 15
THERMOSTAT ADJUSTMENT 16
RINSE TANK HEATER SYSTEM 17
WASH TANK HEATERSYSTEM 19
WATER LEVEL CONTROL 20
SERVICE NSTRUCTIONS(lncomingWaterSolenoidValve) 21
BEWARE of COUNTERFEIT PARTS 22
TROUBLESHOOTING GUIDE 23
PICTORIALS:
FRONT VIEW 26
BACK VIEW 27
LEFT SIDE VIEW 28
RIGHT SIDE VIEW 29
PAN STRAINER, VACUUM BREAKER, DOOR SWITCH
and LATCH ASSEMBLY, INCOMING PLUMBING 30
RINSE TANK, WASH ASSEMBLY, WASH or RINSE
THERMOSTAT, WASH or RINSE THERMOMETER 31
BOOSTER TANK HEATER ELEMENT, ELEMENT
GASKET, THERMOSTATIC OVERLOAD 32
PUMP and MOTOR ASSEMBLY 33
DRAIN VALVE, CUTAWAY VIEW, PANEL 34
WIRING DIAGRAMS 35
PUMP DRAIN OPTION 40
FUNCTIONAL BREAKDOWN of the FOUR MAIN PARTS of the
24BP and 24AP PUMP DRAIN SYSTEM 46
GENERAL INSTALLATION INSTRUCTIONS of MACHINE DRAIN LINE 48
PARTS LIST for the PUMP DRAIN SYSTEM 53
COMPLETE PARTS LIST for SERIES 24 54,55
PARTS DISTRIBUTORS Inside Back Cover

NOTE: All dimensions from floor can be increased 1" with adjustable feet supplied.
Power/Connections
Overall Product, in P
lace
Performance/Capacities
Model
Model
24(F) 24B(F)
WASH PUMP MOTOR
Model Model
Horsepower ELECTRIC HEAT WASH 1/2 1/2 OPERATING CAPACITY 24(F) 24B(F)
KW 1.0 1.0 Racks per Hour 21 21
ELECTRIC HEAT RINSE
Dishes per Hour 525 525
KW N/A 6.2 Glasses per Hour 525 525
STANDARD RACK SIZE
Electrical Ratings 19 3/4 x 19 3/4 11
Model Volts Cycle* Phase
Amps OPERATING CYCLE
Wash Time-Seconds 121 121
24,24F 115 60 24B,24BF 115/208-230 60
*50 cycle available
1 (2
wire)
1 (3
wire)
15.5
34.9@
208v
37.8@
230v
Rinse Time-Seconds
Total Cycle-Seconds
WASH TANK CAPACITY
Gallons
15 145
5.65
15
145
5.65
Water Requirements
RINSE TANK CAPACITY
Gallons
N/A
3
Inlet Temperature—"F 180 140 WASH PUMP CAPACITY
Gal. per Hour 52.3 52.3 GalIons per Minute 60 60
Plow Pressure PSI 20 20 THERMOMETERS
Flow GPM 7.1 7.1 Wash-°F 140-160
140-160
Inlet—IPS 1/2" V2” Rinse-°F 180-195
180-195
Drain—O.D. 1/2" ½” SHIPPING WEIGHT -Pounds
(Gravity Feed Drain)
BASIC MODELS (Approx.) 200 200
CARTON SIZE (W x D x H) 30"x30"x38"
All specifications subject to change without notice.
MODEL
24
(No Booster)
•Total automatic cycle is 2 minutes 25
seconds
•Up to 50% more wash time than other
undercounter dishwashers
•Door activated cycle start switch
•Electric wash tank heater with low water
protection maintains proper wash
temperature
•Simplified controls for ease of operation
•Automatic fill
•Automatic drain
•Manual wash switch for deliming
• 100% fresh water rinse eliminates
problems of rinse water contamination
associated with re-circulating rinse
machines
• (18-8) 304 series stainless steel con-
struction. 18 gauge material is used for
extra durability and years of reliable
service
•No switches or wiring in door
•One dish rack and one combination cup,
bowl and silver rack included
• 115 v/60 Hz/1 phase only
•Optional pumped drain
MODEL 24B
•Same Standard Features as above except
the Model 24B includes a6.2 KW built-in
booster heater
•Built-in booster is sized to raise incoming
water 40°-50°F
• 208-230 v/60 Hz/1 phase only
•Optional pumped drain
MODEL 24F and MODEL 24BF
•Same Standard Features as above except
"F" models include (18-8) 304 series 18
gauge stainless steel top and side
panels for free standing installations
•Optional pumped drain
Dimensions
Height w/Top 36 1/4" ± 1/2"
Height w/o Top 341/2 a V1/2"
Width 24"
Depth 24"
Minimum Distance from
Wall to Machine 2 1/2"
Standard Table Height 34 1/2"
Maximum Clearance tor Dishes 14"
Legend
A. Electrical Connection.
B. Water Inlet -1/2" Female Pipe
Thread. 2 1/2" High.
C. Drain Connection -1 1/2" O.D.
D. Vented on Back. Cover underside of
countertop or table that will be affected
by moisture with suitable protective
material.
E. Rinse agent feeder connection.
F. Detergent feeder connection.
G. Maximum wall drain height with pumped
drain option.

MODEL 24 TABLE PACKAGE OPTIONS
GENERAL INFORMATION 24.1 PACKAGE
•The system combines the 24 or 24B dishwasher with a standard
Dishtable.
• 42" wall mounted overshelf in 1-X package.
•The Dishtable and overshelf are constructed of 18-8 304 series 16
gauge stainless steel.
•Heavy duty pre-rinse spray.
•20"x20"x6" deep pre-rinse sink with molded scrap basket and rack
slide.
•C33/16"high backsplash.
•Left and right side panels for machine.
NOTES:
A. 633/16" High Backsplash, 33/4" " Turnback
at 45°.
B. 3" High, 1 1/2"Dia. Rolled Edge.
C. Scrap Basket & "H" Bars.
D. 20 " x20 " x6" Deep Pre-Rinse Sink. Drain Connection 25 1/2 ± 1/2"from Floor.
E. Heavy Duty Pre-Rinse 13/16" Hole Size.
F. Slanted Wall Mounted Overshelf. 20" x42" Long.
G. 3 1/2" Hole for Drain, Basket Assembly.
16 GA. s/s N.S.F.
CONSTRUCTION 24-1X PACKAGE
ELECTRICAL
CONNECTION DETAILS MODEL 24B ONLY

CONCEALED DAMAGE
IMPORTANT: FOR YOUR PROTECTION, PLEASE READ AND OBSERVE THE FOLLOWING:
This merchandise has been thoroughly inspected and carefully packed before leaving our warehouse.
If it is found that the shipment has concealed damage, PLEASE DO NOT RETURN IT TO US, but notify and file a
claim with the carrier at once, as follows:
CONCEALED LOSS OR DAMAGE:
Concealed loss or damage means loss or damage which does not become apparent until the merchandise has
been unpacked. The contents may be damaged in transit due to rough handling even though the carton may not
show external damage. When the damage is discovered upon unpacking, notify the carrier within forty-eight (48)
hours by phone and in writing, 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.
DO NOT RETURN DAMAGED MERCHANDISE TO US. FILE YOUR CLAIM AS ABOVE.

GENERAL INSTRUCTIONS
(INSTALLATION)
REFER TO SPECIFICATION SECTION FOR FURTHER DETAILS.
Note: Read the following instructions carefully. Proper installation of your Jackson
Dishwasher will assure proper machine operation.
Uncrating 24:
1. Remove wooden blocks from carton.
2. Slide carton sleeve upward over top of dishwasher, set to one side.
3. Remove bolts holding wooden base to machine and screw in adjustable feet supplied. (Feet are
inside of dishwasher.)
4. Set dishwasher in place, ready for installation
Note: NSF base cradle must be field installed on all 'F' and 'P' models. Cradle goes under
machine and must be sealed in place using silicone sealant.
Installation Instructions:
1. The dishwasher can be leveled to the proper height by adjusting the feet on the four corners. The
front of the unit must be 1/4"to 1/2"higher than the back.
2. Refer to the dimensional data sketch for connections.
3. The drain from the machine is a GRAVITY DRAIN SYSTEM and should have the proper drop from
the machine to an open floor drain, vented to atmosphere. The drain connection is located to the left
rear of the machine when facing the machine's door. The drain fitting is I 1/2" OD tube size, 7" from
floor.
4. IMPORTANT —PLEASE READ —Located on the back upper left corner of the unit is a steam
equalizing vent. This vent in no way should be blocked or prevented from allowing steam to be
vented to the outside of the unit or from under the cabinet in which the unit is installed. Never pipe
the steam downward toward the floor. (SEE PAGE 5 IF IT IS BEING INSTALLED UNDER A
COUNTER.)
5. The electrical connections should be made to the terminal board located at the center front. The
terminals are marked L1, L2, and Neutral. Install proper circuit breaker and conduit size to conform
with local and/or national codes (standards). USE COPPER WIRE ONLY (#8 AWG).

Installation of Top and Sides on 'F' and 'P' Models:
1. Insert rear barrier with angle facing out. Install prior to placing top on uit.
2. Place top on unit, making sure front lip is under flange, but does not interfere with latch or switch
mechanism. Place studs in holes on back of unit. Use 1/4-20 nuts.
NOTE: For 'P' models, omit steps 1 and 2.
3. Remove kickplate. Open door and place side panel lip at door opening. Work panel under top by
pushing with palm of hand. Put self-tapping screws in four places. Both side panels are installed in the
same way. Note: If unit being installed is an 'F' model, do not put the bottom rear self-tapping screw in
each panel until step 4.
4. 'F' models require a back panel. For installation, slide back panel behind lip of side panels and secure
with the two remaining self-tapping screws.

Installation of Model 24 Top and Table gasket:
These instructions are to be used for applying the adhesive backed sponge rubber strip to the top of the
machine prior to setting the table in place.
Included with the Model 24 table is a 6 foot length of 1/4"thick x1" wide sponge rubber adhesive backed
stripping.
Instructions for applying gasket:
1. Place one end of the stripping along the complete
side of the leg support flange and cut it off.
2. Repeat the same procedure along the other side.
3. Place the remaining piece along the front edge, fit it
in between the side pieces and cut it to length.
4. Remove the backing and set the strips in place.
Instructions for installation under a porous
counter top:
1. If possible, a hole should be cut through the counter
top directly above the equalizing vent. A piece of 1
1/4"OD pipe is then inserted through the hole into the
vent opening and piped to the outside.
2. If cutting a hole in the counter is not possible, then a
piece of stainless steel 36" wide by 36" long bend in
the middle at 90 should be centered directly over the
vent to allow the steam to condense on it when it
comes out of the vent.
3. It is very important that this vent be kept open and
cool air allowed to circulate around the unit.
Installation of Model 24 Dishwasher Under Dishtable:
1. On the end of the table, locate bracket #4 opposite the sink end.
2. A square rubber gasket #3 is supplied and should be secured to top frame of dishwasher with
caulk or suitable adhesive.
3. Place dishtable #2 where it is to be installed and support the machine's end.
4. Slide dishwasher #1 underneath dishtable #2 so that the outside of machine is positioned against
the guide bracket #4. Make sure dishtable and dishwasher are in desired permanent location.

5. Using the two holes in bracket #4 as a guide, drill two holes 9/64"diameter in the side panel of
machine. Note: Drill through first thickness of metal only.
6. Using the self-tapping screws supplied, screw them through bracket #4 and into the side panel of
machine until screws are tight.
Removal of Pan Strainer for Cleaning: (Wash and rinse head assemblies must be removed prior to
removing strainer.)
1. Turn machine off and drain by depressing drain switch and releasing.
2. Remove holding pin from rinse feed pipe, remove rinse head assembly by pulling forward.
3. Remove holding pin from upper pump housing, wash head may now be lifted out.
4. Pan strainer now accessible, lift out and clean thoroughly.
5. Clean around pump intake with bristle brush.
6. Replace stainer pan.
7. Re-install wash and rinse head assemblies.
8. Clean strainer pan daily or as needed to insure proper machine operation.
Installation of Wash Head and Rinse Arm Assemblies: (Items disassembled for shipment)
1. Line holes up on wash head assembly to match slots in pump housing.
2. Insert wash head assembly down into upper pump housing as far as
possible.
3. Insert retaining pin to secure wash head to pump housing.
1. Line up stud to match with slot in nipple.
2.Insert rinse arm assembly into female receptical
protruding through back of machine.
3. Insert lanyard pin to secure rinse arm assembly
properly.
4. Make certain end plugs are secured properly in
rinse tubes.

INSTALLATION CHECKLIST
Please check off the following items as they are completed. All items must be completed and checked off
before proceeding to machine operation.
In the event that installation information is needed, please call one of Jackson Products authorized
service agencies, dealership where purchased or Jackson Products Company Technical Assistance
[phone].
1. Is machine pitched up 11/4-11/2inch in front than rear?
2. For gravity drain systems —is machine's gravity drain connected to a open floor drain "vented to atmosphere"?
3. Is machine service voltage at L1 and L2 208-230 volts?
4. Is machine service voltage at L1 and neutral 104-120V?
5. Is machine properly grounded?
6. Is machine service breaker properly sized to total amp load as specified on data plate?
7. Is machine supplied with 140°F hot water at 20 PSI flow pressure with capacity of 52.3 gallons per hour?
8. Is water supply line to machine a minimum of 1/2inch?
9. Is a pressure reducing valve installed on inlet water line for pressures greater than 20 PSI flow?
10. Is equalizing vent vented to atomopshere?
11. Is pump intake strainer installed?
12. Is lower rinse spray arm installed?
13. Is wash spray head installed?