TECHNICAL MANUAL JPX
Contents
1. JPX 300NSU Technical Manual gt Jackson 7610 002 75 96 Rev E 08 16 2005 SECTION 2 INSTALLATION amp OPERATION INSTRUCTIONS INSTALLATION INSTRUCTIONS CONTINUED DECK MOUNTING OF THE DISHMACHINE The dishmachine must be secured in place using the deck mounting tracks and caps provided with machine Install the 4 adjustable feet provided into screw holes where shipping bolts were removed earli er Adjust the level of the dishmachine by screwing the adjustable feet in or out The front of the machine should be adjusted 1 4 to 1 2 higher than the back Install the deck mounting hardware as shown in the drawing below at the location where the dishmachine will be permanently positioned Install 3 8 stainless steel lug bolts to secure tracks and caps to the deck Drill holes into deck as shown below and insure rear holes are located 2 1 4 from the wall The racks and rear end caps may be tightened at this time Slide dishmachine onto tracks and into position at rear end caps Install front end caps into place and adjust if necessary to remove any movement of machine if possible tack weld tracks to deck Ba EXISTING WALL TYPICAL REAR LOCATION END CAPS OF FOOT LEVELER 23 1 2 21 1 4 __ gp 19 _____ 2178 FRONT PANEL OF DISHWASHER 21 7 8 19 TYPICAL LOCATION OF FOOT LEVELER FRONT VIEW FLOOR JPX 300NSU Technical Manual E 7610 002 75 96 Rev E 08 16 2005 J2. Right Hinge Plate Weldment Left Hinge Plate Weldment Back Panel 5700 002 59 40 5700 002 59 39 5700 031 44 33 Rail Right Rack 5700 002 59 94 Rail Left Rack 5700 002 59 93 Strainer Spacer 5700 002 70 60 Strainer Weldment Attaches with 5700 031 35 81 Nut Nylon Wing 1 4 20 5310 994 01 00 JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 Jackson 37 SECTION 6 PARTS SECTION E a a rn ee en FRAME amp PANEL COMPONENTS Right Frame Weldment 5700 002 59 36 Left Frame Weldment 5700 002 59 35 The swivel feet used on the unit may be ordered using 5340 002 71 71 The Panels are secured with 10 32 x 1 2 Truss Head Screws 5305 011 39 36 Top Panel 5700 002 71 10 Left Dress Panel Right Dress Panel 5700 002 71 03 5700 002 71 07 JPX 300NSU Technical Manual gt Jackson 7610 002 75 96 Rev E 08 16 2005 SECTION 7 ELECTRICAL DIAGRAMS SECTION 7 ELECTRICAL DIAGRAMS A A A A ee JPX 300NSU 460 VOLT 60 HERTZ THREE PHASE WK WHT ud BRY VHT Q Q 9 y Se b ax gt BRY O ns LEGEND ym x MHT ORN WHT ORN a WHT H1 RINSE TANK HEATER M1 WASH PUMP MOTOR Me DRAIN MOTOR TM TIMER MOTOR R1 RINSE HEATER CONTACTOR Re WASH MOTOR CONTACTOR E1 POWER LIGHT E2 CYCLE LIGHT E3 MANUAL LIGHT E4 AUTD LIGHT ES HIGH LIMIT LIGHT S1 POWER SWITCH s2 CYCLE SVITCH S3 DOOR SWITCH 54 AUTO MANUAL
3. Removing the diaphragm 17 Remove the diaphragm retainer and then the diaphragm itself Many problems associated with a solenoid valve can be traced to a clogged pilot port in the diaphragm Pointing out the extension hole 18 As indicated in the photo above the extension hole can become clogged If it is difficult to clean out you can use a heated straight pin to push through the hole The center hole the pilot port must also be clear If the diaphragm is torn or bent in any way it must be replaced Diaphragm showing 1 pilot port and 2 extension hole Jackson JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 SECTION 5 SERVICE PROCEDURES RINSE SOLENOID VALVE REPAIR PARTS KIT CONTINUED Removing the screen retainer 19 Using the small flathead screwdriver lift out the screen retainer Verify that the holes in it are free of clogs and debris Removing the mesh strainer screen 20 Again using the small flathead screwdriver carefully remove the mesh screen from inside the valve body The screen should be taken and rinsed out to remove any debris fouling it View inside the solenoid valve body 21 With the mesh screen removed look down into the valve and verify it is not clogged Remove any foreign objects from the valve body that would obstruct flow 22 Reassemble the valve reversing the steps needed to take it apart Replace defective replacement parts with new parts fr
4. Rinse Stiffener Weldment 5700 002 59 79 Gasket Rinse 330 111 42 81 Rinse Hub Weldment 5700 021 38 31 Locknut 1 4 20 S S Hex with Nylon Insert 5310 374 01 00 JPX 300NSU Technical Manual 7610 002 75 96 Rev 08 16 2005 Jackson 29 SECTION 6 PARTS SECTION 1 2 SOLENOID VALVE amp 1 2 NPT VACUUM BREAKER REPAIR PARTS KITS 9 Screw Data Plate Q Ss Coil amp Housing Cap Screw Spring Plunger Kit M 6401 003 07 40 Retainer 6401 003 07 41 Diaphragm O omm amp O ring Kit Screen Retainer 6401 003 06 23 Complete 110 Volt Solenoid Valve Assembly Complete Vacuum Breaker Assembly 4810 100 09 18 4820 003 06 13 Coil amp Housing only 6401 003 07 44 JPX 300NSU Technical Manual Jackson 7610 002 75 96 Rev E 08 16 2005 30 SECTION 6 PARTS SECTION DRAIN VALVE ASSEMBLY 17 QTY Po Poo pasa Sk po DESCRIPTION Valve With Brackets Hosebarb 1 x 3 4 NPT Polypropylene Hosebarb 90 1 x 3 4 NPT Plate Motor Mounting Weldment Tricnut 10 32 AK Fastener S S Lockwasher 10 External Tooth Grommet Heyco Cam Weldment Plate Dielectric Switch Micro Screw 4 40 x 5 8 Motor Chemical Feeder Pump 14 RPM Terminal Ground Spade Locknut 10 32 S S Hex with Nylon Insert Valve Cover Screw 10 32 x 3 8 Truss Head Decal Warning Disconnect Power Mfg No 5700 002 23 28 4
5. ta N d S HOT WATER SANITIZING UNDERCOUNTER DISHMACHINE One Company Countless Solutions TECHNICAL MANUAL FOR JACKSON MODEL JPX 300NSU gt Jackson an Enc dis Company Jackson MSC Inc P O Box 1060 Barbourville KY 40906 606 523 9795 August 16 2005 Fax 606 523 9196 P N 7610 002 75 96 Revision E www jacksonmsc com MANUFACTURERS WARRANTY ONE YEAR LIMITED PARTS amp LABOR WARRANTY ALL NEW JACKSON DISHWASHERS ARE WARRANTED TO THE ORIGINAL PURCHASER 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 main tained 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 war ranty certification The labor to repair or replace
6. Control 8 Operation Instructions 9 Ill PREVENTATIVE MAINTENANCE 11 IV TROUBLESHOOTING 13 V SERVICE PROCEDURES Rinse Solenoid Valve Repair Parts Kit 16 Vacuum Breaker Repair Parts Kit 20 VI PARTS SECTION Electric Panel Assembly 23 Switch Panel Assembly 24 Switch Panel Assembly Stainless Steel Switches 25 Kick Panel Assembly 26 Incoming Plumbing Assembly 27 Solenoid Valve Repair Kit Vacuum Breaker Repair Kit 30 Drain Valve Assembly 31 Drain Plumbing Assembly 32 Wash Motor to Wash Tub Assembly 33 Rinse Tank amp Components 34 Door Assembly 35 Rinse Arm amp Wash Arm Assemblies 36 Miscellaneous Parts 37 Frame amp Panel Components 38 VII ELECTRICAL SCHEMATICS 460 V 60 HZ three phase 40 460 V 60 HZ three phase with Stainless Steel Switches 41 JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 Jackson THIS PAGE IS INTENTIONALLY LEFT BLANK SECTION 1 SPECIFICATION INFORMATION SECTION 1 SPECIFICATION INFORMATION ere SPECIFICATIONS PERFORMANCE CAPABILITIES OPERATING CAPACITY RACKS HOUR RACKS PER HOUR 30 DISHES PER HOUR 600 GLASSES PER HOUR 600 OPERATING CYCLE SECONDS WASH TIME 82 DRAIN TIME 28 RINSE TIME 10 TOTAL CYCLE TIME MINUTES 2 5 MINUTE TIMER OPERATING CYCLE SECONDS WASH TIME 262 DRAIN TIME 28 RINSE TIME 10 TOTAL CYCLE TIME MINUTES 5 TANK CAPACITY GALLONS WASH TANK 5 65 RINSE TANK 3 WASH PUMP CAPACITY GALLONS PER MINUTE 60 TEMPERATURES WASH F
7. SWITCH S5 DRAIN MOTOR LIMIT SWITCH Cl CYCLE RESET MICROSWITCH OFF DRAIN MICROSWITCH WASH MICROSWITCH C4 DRAIN MICROSVITCH CS FILL MICROSWITCH C6 DETERGENT MICROSWITCH FS FILL SOLENOID TS RINSE HEATER THERMOSTAT HL HIGH LIMIT THERMOSTAT MOL VASH MOTOR OVERLOAD IC DISPENSER CONNECTION TIMING CHART 9905 002 75 120 JPX 300NSU Technical Manual gt 7610 002 75 96 Rev E 08 16 2005 Jackson 40 SECTION 7 ELECTRICAL DIAGRAMS A A ee anc JPX 300NSU 460 VOLT 60 HERTZ THREE PHASE WITH STAINLESS STEEL SWITCHES LL m d LEGEND HI RINSE TANK HEATER 1 WASH PUMP MOTOR M2 DRAIN MOTOR TM TIMER MOTOR RI RINSE HEATER CONTACTOR WASH MOTOR CONTACTOR EI POVER LIGHT Ee CYCLE LIGHT E3 MANUAL LIGHT E4 AUTO LIGHT ES HIGH LINIT LIGHT S1 POWER SWITCH Se CYCLE SWITCH S3 DOOR SWITCH S4 AUTO MANUAL SWITCH 55 DRAIN MOTOR LIMIT SWITCH Ci CYCLE RESET MICROSVITCH C2 DFF DRAIN MICROSWITCH WASH MICROSWITCH C4 DRAIN MICROSWITCH CS FILL MICROSWITCH C6 DETERGENT MICROSWITCH FS FILL SOLENOID TS RINSE HEATER THERMOSTAT HL HIGH LINIT THERMDSTAT MOL WASH MOTOR DVERLDAD DC DISPENSER CONNECTION T CONTROL TRANSFORMER TIMING CHART 9905 002 75 12 JPX 300NSU Technical Manual gt Jackson 7610 002 75 96 Rev E 08 16 2005 41
8. flow is 20 5 PSI 4 Detergent foaming Reduce detergent quantity Problem Wash motor doesn t operate on manual wash 1 Loose or broken wires Reconnect or replace wires in motor 2 Defective manual wash switch Replace 3 Defective motor starting relay Replace Problem Motor operates on manual wash but not on automatic 1 Defective timer Replace timer 2 Defective circuit in manual wash switch Replace switch Problem No water comes through the rinse arms when the START CYCLE switch is depressed Water not turned on Turn water on Defective solenoid valve Replace solenoid valve Probes are dirty or coated Clean probes Defective water level control Replace PO NS Problem Little or no water coming through the rinse assemblies 1 Limed up rinse heads or piping Delime rinse heads 2 Low water pressure Increase pipe size to machine Adjust pressure regulator Problem Rinse water runs continuously with breaker turned off 1 Defective plunger in solenoid valve Replace 2 Defective diaphragm in solenoid valve Replace diaphragm Problem Rinse doesn t operate on automatic during timed cycle but does operate in auto fill operation 1 Timer defective Replace timer Problem Rinse water runs continuously with power applied to machine but when circuit breaker to machine is turned off water stops 1 Defective water level control Replace 2 Probes are dirty or coated Clean probes Proble
9. in the long run 2 The procedures demonstrated in this manual are shown being performed on an AJ 44C rack conveyor dishma chine The actual maintenance steps however apply to any Parker style solenoid valve found on a Jackson dishmachine RINSE SOLENOID VALVE REPAIR PARTS KIT STEPS 1 Remove the top screw with the 5 16 nutdriver Remove the screw and the data plate and set to the side Removing the top screw 2 With the top screw and data plate removed grasp the sole noid coil and gently pull up The coil should slide up allowing you to remove it from the valve bonnet If you are wanting to replace the coil continue on with Step 3 If you are wanting to replace some of the internal components of the valve proceed to step 12 Removing the coil 3 NOTE Replacing the solenoid coil requires working with the wiring of your machine It is important that all wiring main tenance be performed by qualified personnel Always verify the wiring steps presented in this instruction with the schemat ic that shipped with the unit A current schematic can also be found in the unit s installation manual Before beginning any step that involves working with wiring ensure that the steps located in the section entitled Preparation have been per formed Power must be secured to the machine at the service breaker Failure to do so could result in severe injury to main tenance personnel Jackson JPX 300NSU Technic
10. 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 unau thorized persons improper installation if serial number has been removed or altered or if unit is used for purpose other than it was origi nally 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 s
11. 002 75 98 5 1 Switch Prime 5930 002 68 27 6 1 Light Amber 5945 504 06 18 7 2 Switch Button DPDT 5930 002 43 44 8 2 Light Red 5945 504 07 18 9 2 Light Green 5945 504 08 18 JPX 300NSU Technical Manual C Jackson 7610 002 75 96 Rev E 08 16 2005 24 SECTION 6 PARTS SECTION SWITCH PANEL ASSEMBLY WITH STAINLESS STEEL SWITCHES 2 6 7 8 9 7 9 8 4 ITEM QTY DESCRIPTION Mfg No 1 1 Switch Panel Weldment 5700 003 02 65 2 1 Decal Control Panel 5700 002 75 75 3 1 Switch Yellow Reed 5930 011 47 50 4 1 Decal High Limit 9905 002 75 98 5 1 Switch Prime 5930 003 05 30 6 1 Light Amber 5945 504 06 18 7 2 Switch ON OFF 5930 003 05 29 8 2 Light Red 5945 504 07 18 9 2 Light Green 5945 504 08 18 JPX 300NSU Technical Manual 7610 002 75 96 Rev 08 16 2005 Jackson 25 SECTION 6 PARTS SECTION KICK PANEL ASSEMBLY Thermometer Wash 48 6685 111 68 48 Decal Wash 9905 002 68 95 Gauge Pressure 0 100 PSI 6680 011 86 42 Thermometer Rinse 120 6685 111 68 49 Decal Rinse 9905 002 68 96 Kick Panel Weldment 5700 002 71 19 Pressure Hose Assembly 5700 002 72 17 Nylon Loop 4320 002 71 22 Fitting 1 4 4730 011 95 42 Hose 5 16 x 12 Long Locknut 6 32 Hex S S with Nylon Insert 5700 011 86 45 5310 373 03 00 Fitting 1 4 4730 011 95 41 JPX 300NSU Technical Manual gt Jackson 7610 002 75 96 Rev E 08 16 2005 26 SECTION 6 P
12. 4 1 4 Inside Clearance Width 20 1 4 Width 24 1 4 Inside Clearance Depth 21 1 4 Depth 22 5 8 Door Open Depth 39 1 2 Wall Clearance minimum 2 1 2 JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 Jackson SECTION 2 INSTALLATION OPERATION INSTRUCTIONS SECTION 2 INSTALLATION amp OPERATION INSTRUCTIONS INSTALLATION INSTRUCTIONS 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 1 888 800 5672 Please remember that technical support is available for service personnel only This equipment is not recommend for use with deionized water or other aggressive fluids Use of deionized water or other aggressive fluids will result in corrosion and failure of materials and components Use of deionized water or other aggressive fluids will void the manufacturer s warranty VISUAL INSPECTION Before installing the unit check the container and machine for damage A damaged container is an indi cator that there may be some damage to the machine If there is damage to both
13. 730 01 1 65 86 4730 01 1 65 87 5700 031 96 02 5340 111 58 10 5311 273 02 00 5975 210 03 00 5700 011 65 78 5700 011 65 80 5930 011 65 81 5305 011 49 70 4320 011 79 34 5940 011 75 70 5310 373 02 00 5700 031 65 70 5305 173 12 00 9905 100 75 93 JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 3 Jackson SECTION 6 PARTS SECTION DRAIN PLUMBING ASSEMBLY 6 I V ITEM QTY DESCRIPTION Mfg No 1 3 Clamp 3 16 to 1 1 2 4730 719 06 09 2 1 Hose Formed Drain 4720 121 40 36 3 2 Bolt 10 32 x 1 2 Slotted Truss Head 5305 173 04 00 4 1 Diverter Valve Assembly 5700 002 23 21 5 1 Clamp 11 16 to 1 1 4 4730 002 18 40 6 1 Hose 1 I D x 10 Feet Long 5700 011 39 72 7 2 Locknut 1 4 20 S S Hex with Nylon Insert 5310 374 01 00 8 2 Bolt 1 4 20 x 1 2 Long 5305 274 02 00 9 1 Bracket Valve Mounting with Tricnuts 5700 021 66 37 10 2 Washer 10 External Tooth Star 5311 273 02 00 JPX 300NSU Technical Manual gt Jackson 7610 002 75 96 Rev E 08 16 2005 32 WASH MOTOR TO WASH TUB ASSEMBLY 11 NOT SHOWN DESCRIPTION Hub Discharge Machined Gasket 2 x 1 1 2 I D x 1 16 Nut Jam 1 1 2 12 NPT Hose Clamp 1 5 16 2 1 4 28 Hose 1 1 4 x 2 1 4 Reinforced Motor Wash 460V 3 4 HP Hose Bottom Manifold Pump Gasket Suction Adapter Casting Suction Adapter Washer S S 1 4 20 1 D Locknut 1 4 20 S S Washer 1 4 1 D x 3 4 O D S S SECTION 6 PARTS SECT
14. ARTS SECTION PLUMBING ASSEMBLY Adapter 1 2 x Male 4730 011 59 53 Copper Tube 1 2 x 1 1 4 5700 000 38 78 Nipple 1 2 Close Union 1 2 C to C 4730 207 15 00 4730 412 05 01 Tee 1 2 x 1 2 x 1 4 4730 411 25 01 Adapter 1 2 Ftg x Male 4730 401 03 01 Valve Solenoid 1 2 220 volt 4810 100 09 18 Y Strainer 1 2 4730 217 01 10 JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 Jack son 27 SECTION 6 PARTS SECTION PLUMBING ASSEMBLY CONTINUED Plug 1 4 Brass 2 per machine Injector Weldment 4730 209 01 00 5700 031 41 83 Fitting Outlet Elbow 4820 111 51 18 Vacuum Breaker Ba 4820 300 07 00 Nut for 1 8 Tubing 7 4730 011 59 45 Valve Check 4820 111 51 14 N Adapter 1 2 Ftg x Male 4730 401 03 01 Copper Tube 1 2 x 20 1 4 5700 031 41 83 Adapter 1 2 Ftg x Male 4730 401 03 01 Lo Pipe Clamp 5700 01 1 38 62 Nipple 1 2 Close Brass 4730 207 15 00 Secure with Locknut 1 4 20 S S Hex with Nylon Insert Elbow 1 2 NPT 90 Brass 5310 374 01 00 4730 011 42 96 JPX 300NSU Technical Manual C Jackson 7610 002 75 96 Rev E 08 16 2005 28 SECTION 6 PARTS SECTION PLUMBING ASSEMBLY CONTINUED lt Clamp Hose 4730 719 06 09 5310 374 01 00 5700 011 38 83 Locknut 1 4 20 S S Hex with Nylon Insert 7 Hose 3 4 x 8 1 2 Gasket Manifold 5330 002 34 77
15. CTRICAL PANEL ASSEMBLY Eds etato ot El NL e Bu HER AF 14 5 13 15 16 17 18 19 16 ITEM QTY DESCRIPTION Mfg No 1 1 Bushing Snap 5975 210 03 00 2 1 Track Terminal 6 7 8 5700 021 62 91 3 2 End Clamp 5940 111 60 30 4 2 Contactor Mini 5945 111 60 07 5 9 Screw 10 32 x 3 8 Phillips Truss Round Head 5305 173 12 00 6 1 Track Terminal 4 3 4 5700 002 75 74 7 1 Decal L1 L2 L3 9905 101 12 66 8 3 Block Snap in Terminal 5940 500 02 19 9 1 Electrical Control Panel Weldment 5700 031 62 94 10 1 Grommet 1 1 8 Heyco 5975 210 08 00 11 1 Wire Lug 5940 200 76 00 12 1 Ground Decal 9905 01 1 41 82 13 1 Overload Contactor 5945 111 60 08 14 1 ACME Transformer 480 to 120 Volt 5950 011 50 70 15 1 Terminal Board 1 4 5940 021 94 85 16 2 Screw 6 32 x 3 8 Sems with External Tooth Lockwasher 5305 002 25 91 17 1 Locknut 10 24 S S Hex with Nylon Insert 5310 373 01 00 18 1 Timer 6 Cam 5945 121 44 69 19 1 Decal Timer 9905 011 40 70 20 4 Locknut 1 4 20 S S Hex with Nylon Insert not shown 5310 374 01 00 21 1 Fuse Holder 5920 011 72 89 22 1 Fuse 1 4 Amp 5920 002 75 95 JPX 300NSU Technical Manual 7610 002 75 96 Rev 08 16 2005 Jack son 23 SECTION 6 PARTS SECTION SWITCH PANEL ASSEMBLY ITEM QTY DESCRIPTION Mfg No 1 1 Switch Panel Weldment 5700 002 71 11 2 1 Decal Control Panel 5700 002 75 75 3 1 Switch Yellow Reed 5930 011 47 50 4 1 Decal High Limit 9905
16. ECTION DOOR ASSEMBLY QTY 1 1 2 2 2 2 2 1 2 6 8 2 2 1 DESCRIPTION Door Weldment Inner Door Weldment Bearing Nyliner Standard Flanged Lockwasher 3 8 S S Locknut 3 8 16 S S Hex with Nylon Insert Spring Door Door Lever Weldment Lever Door Left Hand Magnet Reed Switch Nut 8 32 Hex Locking Screw Cross Recessed Flat Countersunk Tapping Bolt 1 4 20 x 1 2 Long Washer 1 4 I D S S Lever Door Right Hand Order this entire assembly using 5700 002 59 46 Mfg No 5700 002 59 37 5700 002 71 80 3120 002 71 66 5311 276 01 00 5310 011 72 55 5340 011 44 58 5700 002 72 97 5700 002 71 64 5930 002 68 53 5310 272 02 00 5305 002 71 12 5305 274 02 00 5311 174 01 00 5700 002 72 96 JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 3 Jackson SECTION 6 PARTS SECTION RINSE ARM amp WASH ARM ASSEMBLIES Rinse Arm Assembly Plug Rinse Arm 5700 031 39 21 4730 609 04 00 Rinse Arm 5700 031 38 30 Bearing Rinse Head 3120 002 72 24 Bushing Rinse Head 5700 021 33 84 Washer Rinse Arm 5330 011 42 10 Ring Retaining 5340 112 01 11 SS Wash Arm Assembly 5700 021 39 23 Wash Arm Weldment 5700 021 46 58 Bearing Assembly 5700 021 35 97 O ring Not Shown 5330 002 60 69 JPX 300NSU Technical Manual gt Jackson 7610 002 75 96 Rev E 08 16 2005 36 SECTION 6 PARTS SECTION MISCELLANEOUS PARTS
17. ES 7 If any of these conditions are present replace the old plunger with the new one from your kit Verify that the new plunger is also free from defects If it is not contact your Ecolab representative immediately 8 The plunger should drop into the vacuum breaker and seat Ensure it is not flipped upside down the orange seal ring should be up towards the top of the vacuum breaker 9 Pick up the cap and examine it With a soft towel remove any grit grime or debris that may have gotten caught in the threads of both the cap retainer or the vacuum breaker body There is an O ring that should be present on the cap retainer as well Regardless of the condition of the plunger this O ring should be replaced once the cap is removed Using a small flathead screwdriver remove the old O ring Replacing the O ring 10 With the new O ring in place screw the cap back on the vacuum breaker body The cap needs to only be hand tight snug AFTER MAINTENANCE ACTIONS 1 Reconnect the incoming water if disconnected and turn on Then restore power to the unit Run the unit for at least 10 minutes to ensure there are no leaks If any prob lems arise please contact Jackson SPECIAL PARTS To order the kit with components and instructions Components of 1 2 Repair Kit 6401 003 06 23 JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 3 Jackson SECTION 6 PARTS SECTION SECTION 6 PARTS SECTION ELE
18. ION 11 NOT SHOWN Mfg No 5700 021 37 90 5330 200 23 00 5700 000 86 23 4730 719 01 37 5700 011 44 48 6105 121 60 06 5700 001 22 92 5330 021 40 87 9515 031 39 86 5311 174 01 00 5310 374 01 00 5311 011 76 30 JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 3 Jackson SECTION 6 PARTS SECTION RINSE TANK amp COMPONENTS Rinse Tank Weldment 5700 002 71 00 Secured with Locknut 1 4 20 S S Hex with Nylon Insert 5310 374 01 00 Dielectric Cover 5700 011 40 50 Fitting 1 4 Imperial Brass u 5310 924 02 05 Nut 5 16 18 S S Hex 5310 275 01 00 Lockwasher 5 16 Split 5311 275 01 00 Gasket Heater 5330 011 47 79 The JPX 300NSU comes supplied with various heaters depending on the characteristics of the machine To ensure that you order the correct heater for the model you are servicing please refer to the following table 40 Rise 70 F Rise Volts Hz Phase Rinse Heater 8 2 KW Rinse Heater 10 KW 460 60 3 4540 111 51 46 4540 002 29 82 Thermostat Rinse Tank 5930 121 71 29 Decal Thermostat Regulating Thermostat Mounting Bracket 9905 011 84 31 5700 011 81 64 Thermostat High Limit The thermostat attaches with 2 5930 011 49 43 Screw 6 32 x 3 8 Sems w External Tooth Washer 5305 002 25 91 Decal High Limit 9905 011 84 32 JPX 300NSU Technical Manual C Jackson 7610 002 75 96 Rev E 08 16 2005 34 SECTION 6 PARTS S
19. MINIMUM 150 RINSE F 180 195 ELECTRICAL REQUIREMENTS WASH PUMP MOTOR HORSEPOWER RINSE HEATER TOTAL VOLTS PH HZ RATINGS AMPS 460 3 60 8 2KW 460V 11 460 3 60 10KW O 460V 14A WATER REQUIREMENTS INLET TEMPERATURE 40 BOOSTER INLET TEMPERATURE 70 BOOSTER GALLONS PER HOUR WATER LINE SIZE NPT MINIMUM DRAIN LINE SIZE NPT MINIMUM FLOW PRESSURE P S I FLOW GALLONS PER MINUTE FRAME DIMENSIONS HEIGHT MINIMUM HEIGHT MAXIMUM WIDTH DEPTH MAXIMUM INSIDE CLEARANCE HEIGHT MAXIMUM INSIDE CLEARANCE WIDTH MAXIMUM INSIDE CLEARANCE DEPTH DOOR OPEN DEPTH CLEARANCE WALL TO MACHINE 3 4 TYPICAL ELECTRICAL CIRCUIT 15 AMP 20 AMP 140 F 110 52 3 1 2 11 2 20 5 7 1 33 1 4 34 1 4 24 1 4 22 5 8 14 1 2 20 1 4 21 1 4 39 1 2 2 1 2 NOTE Always refer to the machine data plate for specific electrical and water requirements The material provided on this page is for reference only and may be subject to change without notice gt Jackson JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 SECTION 1 SPECIFICATION INFORMATION DIMENSIONS LEGEND A Water Inlet 1 2 ID Female Pipe Thread 2 1 2 B Chemical Feeder Connection 27 Ma Wal Cha gd C Electrical Connection B Rinse Additive Connection LEILA ADIDAS ID Pd LISTEN JOCK OPLN DIMENSIONS Height minimum 33 1 4 Inside Clearance Height 14 1 2 Height maximum 3
20. TIVE MAINTENANCE SECTION 3 PREVENTATIVE MAINTENANCE Te n PREVENTATIVE MAINTENANCE The dishmachines covered in this manual are designed to operate with a minimum of interaction with the operator However this does not mean that some items will not wear out in time There are many things that operators can do to prevent catastrophic damage to the dishmachine One of the major causes of component failure has to do with prescrapping procedures A dishmachine is not a garbage disposal any large pieces of mate rial that are put into the machine shall remain in the machine until they are either broken up after spreading out on your ware or physically removed Strainers are installed to help catch debris but they do no good of they are clogged Have operators regularly inspect the pan strainers to ensure 1 that they are free of soil and debris and 2 they are laying flat in the tub When cleaning out strainers do NOT beat them on waste cans The strainers are made of metal and can be forgiving but once severe damage is done it is next to impossible for the strainer to work in the way it was designed to Wipe out strainers with a rag and rinse under a faucet if necessary For stubborn debris a toothpick should be able to dislodge any obstructions from the perforations Always ensure that strainers are placed back in the machine before operation and that they lay flat in the tub You may wish to contact Jackson in order to learn more about
21. ackson SECTION 2 INSTALLATION amp OPERATION INSTRUCTIONS sUVass s ss DETERGENT CONTROL Detergent usage and water hardness are two factors that contribute greatly to how efficiently your dishmachine will operate Using detergent in the proper amount can become in time a source of substantial savings A qualified water treatment spe cialist can tell you what is needed for maximum efficiency from your detergent but you should still know some basics so you ll understand what they are talking about First you must understand that hard water greatly effects the performance of the dishmachine Water hardness is the amount of dissolved calcium and magnesium in the water supply The more dissolved solids in the water the greater the water hard ness Hard water works against detergent thereby causing the amount of detergent required for washing to increase As you use more detergent your costs for operating the dishmachine will increase and the results will decrease The solids in hard water also may build up as a scale on wash and rinse heaters decreasing their ability to heat water Water temperature is important in removing soil and sanitizing dishes If the water cannot get hot enough your results may not be satisfactory This is why Jackson recommends that if you have installed the machine in an area with hard water that you also install some type of water treatment equipment to help remove the dissolved solids from the water before it get
22. al Manual 7610 002 75 96 Rev E 08 16 2005 SECTION 5 SERVICE PROCEDURES RINSE SOLENOID VALVE REPAIR PARTS KIT CONTINUED Prying open the coil wire cover 4 When replacing the coil ensure that when removing the coil wire cover that care is taken not to damage the wires inside Using the medium flathead screwdriver gently use it to open the cover enough to where it could be pulled off Straightening the wires 5 Once the coil wire cover has been removed and set to the side take the internal wires and pull them out straight Removing the wire nuts 6 Remove the wire nuts from the wires and separate them Loosening the conduit nut 7 Using a pair of channel locks gently loosen the conduit retaining ring for the conduit nut Once it is loosened use your fingers to unscrew and remove it 8 Pull the conduit away and discard the bad coil Take the new coil and attach the conduit reinstall amp tighten the conduit nut and pull the wires through so that you will be able to wire the valve back up 9 Reconnect the wires from the conduit to the wires from the solenoid as they had been connected previously Ensure that the wire nuts are on tight 10 Slide the coil wire cover back on taking care not to dam age the wires 11 If you are done performing maintenance on the valve con tinue on to step 23 Otherwise please go on to step 12 L Loosening the valve bonnet 12 To remove the valve bonnet g
23. cate that you are working on the circuit The dishmachine data plate is located on the front of the machine Refer to the data plate for machine operating requirements machine voltage total amperage load and serial number To install the incoming power lines remove the kick panel This will require taking a phillips head screwdriver and removing the two 2 1 4 turn screws at the bottom of the kickplate open the door slightly while carefully lifting the kickplate up and out of the way Install 3 4 conduit into the pre punched holes in the back of the control box Route power wires and connect to power block and grounding lug Install the service wires L1 L2 and L3 to the appropriate terminals as they are marked on the ter minal block Install the grounding wire into the lug provided 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 incom ing power at the terminal block and ensure it corresponds to the voltage listed on the data plate If not contact a qualified ser vice agency to examine the problem Do not run the dishmachine if the voltage is too high or too low Shut off the service break er 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 control box cover and tighten down the screws
24. e 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 AJ Series Installation Operation Manual C Jackson 7610 001 76 21 Rev E 02 15 2005 REVISION MADE APPLICABLE Added 2nd Enodis logo to cover Removed title Installation Manual for Export Units from cover Changed thermostat from 5930 121 71 36 to 5930 011 49 43 Added 4 3 4 Din Rail 5700 002 90 18 to Control Box Assembly Changed thermostat bracket from 5700 011 73 72 to 5700 011 81 64 Changed vacuum breaker from 4820 300 07 00 to 4820 003 06 13 Added service procedure pages 04 18 05 6964 6988 08 16 05 7006 7383 NOMENCLATURE FOR THE MODEL COVERED IN THIS MANUAL 9 Jackson An Encdis Company JPX 300NSU JPX 300NSU Hot water sanitizing electrically heated dishmachine Model Serial No Installation Date Service Rep Name Phone No JPX 300NSU Technical Manual gt Ja ckson 7610 002 75 96 Rev E 08 16 2005 TABLE OF CONTENTS SECTION DESCRIPTION PAGE l SPECIFICATION INFORMATION Specifications 2 Dimensions 3 IL INSTALLATION amp OPERATION INSTRUCTIONS Installation Instructions 5 Electrical Installation Instructions 6 Deck Mounting of Dishmachine 7 Detergent
25. e tub sump The machine will run a partial cycle and fill to the bottom of the pan strainer Open the door and verify that the water level is cor rect NOTE Ensure the orange white wires at the heater contactor are connected properly They have been purposely discon nected at the factory to avoid damage to the heater element when there is no water in the booster heater Hereafter the water level is controlled by the timer that has been preset at the factory Verify that there are no other leaks on the unit before proceeding any further The wash sump must be completely filled before operating the wash pump to prevent damage to the component Once the wash tub is filled the unit is ready for operation The machine runs a complete cycle to drain and fill If the machine is not allowed to drain the water will build up inside the tub After the initial fill the rinse water for the current cycle will become the wash water for the next cycle WARE PREPARATION Proper preparation of ware will help ensure good results and less re washes If not done properly ware may not come out clean and the efficiency of the dishmachine will be reduced It is important to remember that a dishmachine is not a garbage disposal and that simply throwing unscraped dishes into the machine simply defeats the purpose altogether of washing the ware Scraps should be removed from ware prior to being loaded into a rack Pre rinsing and pre soaking are good ideas especially for
26. ean ware Replace with a rack of soiled ware and close the door The process will then repeat itself OPERATIONAL INSPECTION Based upon usage the pan strainer may become clogged with soil and debris as the workday pro gresses Operators should regularly inspect the pan strainer to ensure it has not become clogged If the strainer does it will reduce the washing capability of the machine Instruct operators to clean out the pan strainer at regular intervals or as required by work load SHUTDOWN AND CLEANING At the end of the workday close the door Start a cycle Wait approximately five seconds and then push the POWER OFF switch This will put the machine in shutdown mode which will let the machine drain completely prior to shut ting off Once the wash tub is drained and power light is off remove he pan strainer Remove soil and debris from the strainer and set to the side Unscrew the wash and rinse arms from their manifolds Remove the endcaps and flush the arms with water Use a brush to clean out the inside of the arms If the nozzles appear to be clogged use a toothpick to remove the obstruction Wipe the inside of the unit out removing all soil and scraps Reassemble the wash and rinse arms and replace them in the unit The arms only need to be hand tight do not use tools to tighten them down Reinstall the strainer and close the door JPX 300NSU Technical Manual E 7610 002 75 96 Rev E 08 16 2005 Jackson SECTION 3 PREVENTA
27. how your water hardness will effect the performance of your machine Hard water makes dishmachines work harder and decreases efficiency Again it is important to remind operators that trying to perform corrective maintenance on the dishmachine could lead to larg er problems or even cause harm to the operator If a problem is discovered secure the dishmachine using proper shut down procedures as listed in this manual and contact Jackson Some problems however may having nothing to do with the machine itself and no amount of preventative maintanence is going to help A common problem has to do with temperatures being too low Verify that the water temperatures coming to your dishmachine match the requirements listed on the machine data plate There can be a variety of reasons why your water tem perature could be too low and you should discuss it with Jackson to determine what can be done By following the operating and cleaning instructions in this manual you should get the most efficient results from your machine As a reminder here are some steps to take to ensure that you are using the dishmachine the way it was designed to work Ensure that the water temperatures match those listed on the machine data plate Ensure that all strainers are in place before operating the machine Ensure that all wash and or rinse arms are secure in the machine before operating Ensure that drains are closed sealed before operating Remove as much soi
28. i ciently as possible Certain dishmachine models require that chemicals be provided for proper operation and sanitization Some models even require the installation of third party chemical feeders to introduce those chemicals to the machine Jackson does not recom mend or endorse any brand name of chemicals or chemical dispensing equipment Contact your local chemical distributor for questions concerning these subjects Some dishmachines come equipped with integral solid detergent dispensers These dispensers are designed to accommodate detergents in a certain sized container If you have such a unit remember to explain this to your chemical distributor upon first contacting them As explained before water temperature is an important factor in ensuring that your dishmachine functions properly The data plate located on each unit details what the minimum temperatures must be for either the incoming water supply the wash tank and the rinse tank depending on what model of dishmachine you have installed These temperatures may also be followed by temperatures that Jackson recommends to ensure the highest performance from you dishmachine However if the minimum requirements are not met the chances are your dishes will not be clean or sanitized Remember a dish can look clean but it may not be sanitized Instruct your dishmachine operators to observe the required temperatures and to report when they fall below the minimum allowed A loss of temperatu
29. l from dishes by hand as possible before loading into racks Do not overfill racks Ensure that glasses are placed upside down in the rack Ensure that all chemicals being injected to machine have been verified as being at the correct concentrations Clean out the machine at the end of every workday as per the instructions in the manual 10 Always contact your Ecolab representative whenever a serious problem arises 11 Follow all safety procedures whether listed in this manual or put forth by local state or national codes regulations JPX 300NSU Technical Manual E 7610 002 75 96 Rev E 08 16 2005 Jackson 11 SECTION 4 TROUBLESHOOTING SECTION 4 TROUBLESHOOTING SECTION EER COMMON PROBLEMS WARNING Inspection testing and repair of electrical equipment should be performed only by qualified service personnel Certain procedures in this section require electrical tests or measurements while power is applied to the machine Exercise extreme caution at all times If test points are not easily accessible disconnect power attach test equipment and reapply power to test When replacing electrical parts disconnect power at source circuit breaker Problem Water overflow from bottom of door 1 Clogged drain Remove obstruction 2 Machine not level Level machine or increase height to the front 3 Excessive inlet pressure Install pressure reducing valve or adjust if one is present Ensure
30. m Wash temperature not at required reading on thermometer Defective thermometer Replace Defective thermostat Adjust thermostat Replace thermostat Rinse heater defective Replace heater element Water level protection control device Replace gt JPX 300NSU Technical Manual E 7610 002 75 96 Rev E 08 16 2005 Jackson 13 SECTION 4 TROUBLESHOOTING SECTION sss COMMON PROBLEMS Problem Rinse water not at required temperature range 1 Thermometer is defective Replace 2 Thermostat is defective Adjust the thermostat Replace if necessary Problem Machine doesn t drain when POWER OFF switch is pressed Drain solenoid clogged Remove obstruction Defective POWER OFF switch Replace Defective motor or motor start relay Replace Defective drain solenoid Replace Defective timer Replace akon Problem No indication of pressure 1 Water turned off Turn water on 2 1 4 test cock ball valve is closed Open the ball valve JPX 300NSU Technical Manual gt Jackson 7610 002 75 96 Rev E 08 16 2005 SECTION 5 SERVICE PROCEDURES SECTION 5 SERVICE PROCEDURES These dishmachines are equipped with electrical solenoid valves to allow for automatic fill and rinse These valves are designed to specific tolerances and design aspects that must be met in order to function properly Jackson offers repair kits for replacing some of the wea
31. om ordered kits Ensure that components are sufficiently tightened to prevent leakage AFTER MAINTENANCE ACTIONS Reconnect the incoming water if disconnected and turn on Then restore power to the unit Run the unit for at least 10 minutes to ensure there are no leaks If any problems arise please contact Jackson SPECIAL PARTS Solenoid Valve Plunger Kit Includes plunger and spring Part number 6401 003 07 40 Solenoid Valve Diaphragm Kit Includes diaphragm and o ring Part number 6401 003 07 41 1 2 NPT Solenoid Valve 110 Volt Coil and Housing Kit Part number 6401 003 07 43 Complete Solenoid Valve Part number 04810 100 12 18 1 2 110 Volt JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 5 Jackson SECTION 5 SERVICE PROCEDURES These dishmachines are equipped with vacuum breakers to serve as back flow prevention devices ASSE requirements specify what type of back flow prevention is nec essary on dishmachines Vacuum breakers unlike air gaps have certain parts that have specific tolerances and design aspects that must be met in order to function properly Jackson offers repair kits for replacing some of the wear items associated with vacuum breakers which will allow you to save money in that replacement of these parts can take place without removing the vacuum breaker from the plumb ing assembly The instructions provided here are for maintenance personnel only Unauthorized persons sh
32. ould not attempt any of the steps contained in these instructions Warning many of the instructions and steps within this document require the use of tools Only autho rized personnel should ever perform any maintenance procedure on the dishmachine PREPARATION 1 Power must be secured to the unit at the service breaker Tag or lock out the service breaker to prevent acci dental or unauthorized energizing of the machine 2 Ensure that incoming water to the machine is secured either by use of a shut off valve or disconnecting the incoming water line TOOLS REQUIRED The following tools will be needed to perform this maintenance evolution 1 Small flathead screwdriver 2 Needle nose pliers TIME REQUIRED It is estimated that it will take 1 person twenty min utes to perform this task not including all of the items indicat ed in the section entitled PREPARATION IMPORTANT NOTES 1 Read these instructions thoroughly before attempt ing this maintenance evolution Become familiar with the parts and what actions need to be taken This will save time in the long run VACUUM BREAKER REPAIR PARTS KIT STEPS 1 Note These instructions only apply to vacuum breakers 1 2 NPT and 3 4 NPT as pictured below The repair kits indicated in these instructions will only work on those style of back flow preventers If you have a machine with a different style of vacuum breaker contact your Ecolab representative about
33. r items associated with solenoid valves which will allow you to save money in that replacement of these parts can take place withoutremoving the solenoid valve from the plumbing assembly The instructions provided here are for maintenance personnel only Unauthorized persons should not attempt any of the steps contained in these instructions Warning many of the instructions and steps within this document require the use of tools Only autho rized personnel should ever perform any maintenance procedure on the dishmachine PREPARATION 1 Power must be secured to the unit at the service breaker Tag or lock out the service breaker to prevent acci dental or unauthorized energizing of the machine 2 Ensure that incoming water to the machine is secured either by use of a shut off valve or disconnecting the incoming water line TOOLS REQUIRED The following tools will be needed to perform this maintenance evolution 1 Small flathead screwdriver 2 Medium flathead screwdriver 2 Needle nose pliers 3 5 16 nutdriver 4 Channel locks 5 12 pipe wrench TIME REQUIRED It is estimated that it will take 1 person twenty min utes to perform this task not including all of the items indicat ed in the section entitled PREPARATION IMPORTANT NOTES 1 Read these instructions thoroughly before attempt ing this maintenance evolution Become familiar with the parts and what actions need to be taken This will save time
34. rasp it with the jaws of the pipe wrench and turn to the left Note on some models you may have to remove the valve in order to perform this and any further steps Be careful not to damage the plumbing assem bly Only use the pipe wrench enough to where you can spin the valve bonnet off with your hand JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 em Jackson SECTION 5 SERVICE PROCEDURES RINSE SOLENOID VALVE REPAIR PARTS KIT CONTINUED Removing the valve bonnet 13 Slowly remove the valve bonnet Note The spring for the plunger is located directly under the bonnet and may come free if you are not careful Remove the plunger spring and valve bonnet and place to the side Removing the O ring 14 Remove the O ring and inspect it If it has any tears or cuts or excessive flat spaces it should be replaced 15 Examine the threads for the valve bonnet Check them for scoring or signs of damage Take a cloth and clean them out to remove any foreign particles that might get lodged in the threads and cause a leak Severely damage threads should not be repaired instead it is recommended that the entire valve should be replaced These instructions do not provide information on replacing the solenoid valve 16 Note Even though an O ring may not appear damaged it is a good idea to go ahead and replace it if you have a new one This will help ensure that your valve remains leak free in the future
35. re can indicate a much larger problem such as a failed heater or it could also indicate that the hot water heater for your operation is not up to capacity and a larger one may need to be installed There are several factors to consider when installing your dishmachine to ensure that you get the best possible results from it and that it operates at peak efficiency for many years Discuss your concerns with your local chemical distributor and water treatment specialist before there is a problem JPX 300NSU Technical Manual gt Jackson 7610 002 75 96 Rev E 08 16 2005 SECTION 2 INSTALLATION amp OPERATION INSTRUCTIONS a o TE OPERATION INSTRUCTIONS PREPARATION Before proceeding with the start up of the unit verify the following 1 The strainer is in place and is clean 2 That the wash and rinse arms are screwed securely into place and that their endcaps are tight The wash and rinse arms should rotate freely 3 Verify all chemical levels for machine chemical feeder pumps are correct POWER UP To energize the unit turn on the power at the service breaker The voltage should have been previously verified as being correct If not the voltage will have to be verified FILLING THE WASH TUB For the initial fill close the door and ensure that the MANUAL switch light is not on Depress and hold the START CYCLE switch until the auto light comes on and releases For the initial fill run the machine through 3 cycles to fill th
36. replacement components Vacuum breaker 2 Note Even though the photos in these instructions show a vacuum breaker that has been removed from the plumbing assembly these maintenance steps could be performed with it installed so long as the requirements in the section entitled PREPARATION have been met 3 Remove the top cap by gripping firmly and turning to the left The cap should come off after a few turns Removing the cap 4 Set the cap to the side 5 Using the needle nose pliers gently lift out the plunger and set to the side Examine the brass seating surface inside the vacuum breaker The plunger is required to sit flat on this sur face so it must be free of defects imperfections and the like If there is debris remove it If it is chipped or cracked then the vacuum breaker must be replaced Failure to do so may result in the vacuum breaker not working according to its design and could result in damage to the dishmachine Jackson JPX 300NSU Technical Manual 7610 002 75 96 Rev E 08 16 2005 VACUUM BREAKER REPAIR PARTS KIT CONTINUED Removing the plunger 6 Your repair kit comes with a new plunger Examine the old one and ensure that the mating surface is not damaged or cut Also inspect the rubber seal on the top of the plunger to ensure it is in good condition and not torn Examining the seal ring on the plunger Examining the plunger seating surface SECTION 5 SERVICE PROCEDUR
37. s to the dishmachine Second hard water may have you adding drying agents to your operating cycle to prevent spotting when the real problem is deposited solids on your ware As the water evaporates off of the ware the solids will be left behind to form the spotting and no amount of drying agent will prevent this Again using treated water will undoubtedly reduce the occurrences of this prob lem Third treated water may not be suitable for use in other areas of your operation For instance coffee made with soft water may have an acid or bitter flavor It may only be feasible to install a small treatment unit for the water going into the dishmachine itself Discuss this option with your qualified water treatment specialist Even after the water hardness problems have been solved there still must be proper training of dishmachine operators in how much detergent is to be used per cycle Talk with your water treatment specialist and detergent vendor and come up with a complete training program for operators Using too much detergent has as detrimental effects as using too little The proper amount of detergent must be used for job It is important to remember that certain menu items may require extra detergent by their nature and personnel need to be made aware of this Experience in using the dishmachine under a variety of conditions along with good training in the operation of the machine can go a long way in ensuring your dishmachine operates as eff
38. silverware and casserole dishes Place cups and glasses upside down in racks so that they do not hold water during the cycle The dishmachine is meant not only to clean but to sanitize as well to destroy all of the bacteria that could be harmful to human beings In order to do this ware must be properly prepared prior to being placed in the machine DAILY MACHINE PREPARATION Refer to the section entitled PREPARATION at the top of this page and follow the instructions there Afterwards check that all of the chemical levels are correct and or that there is plenty of detergent available for the expected workload WARM UP CYCLES For a typical daily start up it is recommended to run the machine through 3 cycles to ensure that all of the cold water is out of the system and to verify that the unit is operating correctly To cycle the machine ensure that the power is on and that the tub has filled to the correct level Press the START CYCLE button and hold until the green auto light is on and releases the unit will start run through the cycle and shut off automatically Repeat this two more times The unit should now be ready to proceed with the washing of ware WASHING A RACK OF WARE To wash a rack open the door completely and slide the rack into the unit Close the door press the START CYCLE button and hold until the green auto light is on and releases the unit will start Once the cycle is completed open the door and remove the rack of cl
39. 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 undam aged 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 miss ing parts from the machine This may not be obvious at first If it is discovered that an item is missing contact Jackson imme diately 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 dam age 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 PLUMBING THE DISHMACHINE All plumbing connections must comply with all applicable local state and na
40. tional plumb ing 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 JPX 300NSU machine is a pumped pressure drain capable of pumping waste water to a height of 24 inches from the floor to the kitchen s drain system The dishmachine is supplied with a 10 foot long hose that extends from the rear side of the machine 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 12 gallons per minute WATER SUPPLY CONNECTION Ensure that you have read the section entitled PLUMBING THE DISHMACHINE above before proceeding Install the water supply line 1 2 ID pipe size minimum to the dishmachine line strainer using copper pipe 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 5 PSI flow pressure at the recommended temperature indicated on the data plate Do
41. to areas where the water pressure fluctuates or is greater than the recommended pressure it is recommended installing supplied water pressure regulator 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 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 JPX 300NSU Technical Manual gt 7610 002 75 96 Rev E 08 16 2005 Jackson SECTION 2 INSTALLATION amp OPERATION INSTRUCTIONS J we ss Y ec aD ELECTRICAL INSTALLATION INSTRUCTIONS 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 Disconnect electrical power supply and place a tag at the disconnect switch to indi
42. upplied 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 th
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