Simply Engineered Better Technical Manual Undercounter Dishwasher Model 301HT High Temperature with Built-in Booster Machine Serial No. June, 2005 Manual P/N P. O. Box 4183 Winston-Salem, North Carolina 27115-4149 336/661-1992 Fax: 336/661-1660 113648 Rev H 2674 N. Service Road Jordan Station, Ontario, Canada L0R 1S0 905/562-4195 Fax: 905/562-4618 www.moyerdiebel.
Complete the information below for quick reference. Model Number Serial Number Voltage and Phase Moyer Diebel Parts Supplier Phone Moyer Diebel Service Agency Phone Moyer Diebel Service: Moyer Diebel (USA) Phone: 1 (336) 661-1556 1 (800) 858-4477 Fax: 1 (336) 661-1660 Moyer Diebel Limited (Canada) Phone: 1 (905) 562-4195 1 (800) 263-5798 Fax: 1 (905) 562-4618 Note: When calling to order parts, be sure to have the model number, serial number, voltage and phase of your machine.
REVISION RECORD Revision Record Revision Date Revised Pages Serial Number Effectivity Comments 7/3/03 All —— 10/2/03 2, 30-31 Inserted pressure reducing valve information (107550). 10/14/03 22-23 Inserted rinse aid dispenser parts breakdown information. 10/14/03 33 Revised part number for solenoid valve. 2/11/04 16 Revised part number for door support. 8/4/04 14-15 Added new hardware for panels. 8/4/04 16-17 Added new hardware for control cabinet decal.
REVISION RECORD Revision Record (Cont.
LIMITED WARRANTY Limited Warranty Moyer Diebel, P.O. Box 4183, Winston-Salem, North Carolina 27115, and P. O. Box 301, 2674 North Service Road, Jordan Station, Ontario, Canada L0R 1S0 warrants machines, and parts, as set out below.
FIV FOREWORD 1. Read the instructions in this manual carefully. It contains important information on installation, operation, and safety. 2. Store this manual carefully for future reference. 3. After removing packing material, check for loose parts in dishracks. 4. Before switching the equipment on, make sure that the model data plate conforms to the electrical and water requirements supplied to this particular machine. 5.
TAB LE OF C ONT E NT S TABLE OF CONTENTS R evision R ecord........................................................................................................... L imited Warranty ......................................................................................................... Forward........................................................................................................................ PAGE i iii iv 1 OPERATION ................................................................
Part 1: INSTALLATION AND MAINTENANCE This Page Intentionally Left Blank vi
INSTALLATION GENERAL This manual covers the Moyer Diebel 301 undercounter high temperature dishwashing machine with built-in booster. Liquid detergent and rinse aid dispensing pumps are standard. Even though chemical dispensing settings are preset at the factory for average water conditions, to ensure maximum performance and best results, have your chemical supplier perform a water titration test and adjust dispensing pumps for your specific water conditions.
INSTALLATION INSTALLATION (CONT.) ELECTRICAL CONNECTIONS NOTE: Leave enough electrical cable behind the machine so that the dishwasher can be pulled forward a minimum of two feet to be serviced. WARNING: Electrical and grounding connections must comply with the National Electrical Code and/or Local Electrical Codes. WARNING: When working on the dishwasher, disconnect the electric service and tag it to indicate work is being done on that circuit. 1.
INSTALLATION INSTALLATION (CONT.) PLUMBING CONNECTIONS (CONT.) Drain Connections 1. Drain hose must be supported by bracket provided (shipped inside of machine). 2. The drain hose bracket must be mounted a minimum of 2 feet above the finished drain, either on the rear of the machine or on the wall. 3. The maximum height of the drain from the floor must not exceed 3 feet. 4. Connect the 3/4"I.D. flexible reinforced drain hose to a 1-1/2" wye (Y) drain fitting. Use a 3/4" hose adapter (supplied by others).
INSTALLATION INSTALLATION (CONT.) COMPLETING THE INSTALLATION 1. Recheck for and remove any foreign materials from inside the machine. 2. Center the scrap screens over the sump opening 3. After Plumbing and electrical connections are completed, check machine for water leaks by closing the door, then depressing the ON switch. This allows the tank to begin filling and to reach temperature. 4. Open the door and check the water level. The water level should be a two inches above the scrap screen. 5.
OPERATION OPERATION OPERATION SUMMARY The following is a summary of your model 301HT dishwasher operating cycle: 1. The door must be closed to begin the cycle. 2. Pressing the POWER button begins to fill the wash tank. 3. When the correct water level has been reached the booster heater comes on. Figure 1-Control Panel 4. Press and holding the START button starts the cycle. 5. The pump runs during the wash cycle for approximately 120 seconds.
OPERATION OPERATIONS (CONT.) MAINTENANCE 7. Check the rinse temperature during the final rinse. The final rinse must be 82°C/180°F minimum. 8. When the green cycle light turns off, the cycle is complete. 9. Open the door and remove the rack. 10. Repeat steps 4-9 for additional cycles. Machine operation is automatic. 11. Clean the scrap screens after every meal period. During heavy usage, the scrap screens should be cleaned more frequently.
MAINTENANCE MAINTENANCE The efficiency and life of your machine in increased be regularly scheduled preventive maintenance. A well maintained machine gives better results and service. An investment of a few minutes of daily maintenance will be worthwhile. The best maintenance you can provide is to keep your machine clean. Should poor results occur: first drain, next clean the machine as described below in the Daily-Every 8 Hours procedure, then refill.
MAINTENANCE MAINTENANCE (CONT.) CLEANING SCHEDULE (CONT.) •As Required 1. Check temperature gauge readings. Replace as necessary. 2. Check chemical supplies and refill as necessary. •Weekly 1. Inspect all water lines for leaks and tighten any joints of required. 2. Clean all detergent residue from exterior of machine. 3. Check drain for leaks. 4. Clean any accumulated scale from the heating element. 5. Remove and closely inspect each spray arm for any blockage. 6. Check for any damage to scrap screen.
MAINTENANCE MAINTENANCE (CONT.) CLEANING SCHEDULE (CONT.) DELIMING Your dishwasher should be delimed regularly as required. This will depend on the mineral content of your water. Inspect the machine interior for lime deposits. If deliming is required, a deliming agent should be used for best results.
TROUBLESHOOTING TROUBLESHOOTING Before determining any specific cause of a breakdown or abnormal operation of your dishwasher, check that: 1. All switches are turned on. 2. Wash and rinse arms are clean and clear of any debris. 3. Overflow tube is properly positioned. 4. Scrap screen is properly positioned and clean. 5. Thermostats are at the correct settings. 6. Detergent and rinse additive dispensers are adequately filled. 7. All plumbing valves to machine are open.
TROUBLESHOOTING TROUBLESHOOTING (CONT.) CONDITION CAUSE SOLUTION Insufficient pumped spray pressure Clogged pump intake screen ........... Clogged spray pipe .......................... Scrap screen full .............................. Low water level in tank ................... Defective pump seal ........................ Clean Clean Must be kept clean and in place Check drain and overflow tube Contact service agent Insufficient final rinse or no final rinse Clogged rinse nozzle and/or arm ....
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REPLACEMENT PARTS REPLACEMENT PARTS 13
REPLACEMENT PARTS 11 1 10 7 11 2 12 12 13 A 7 3 12 7 3 11 9 8 12 4 11 5 7 6 Figure 4- Hood and Tank 14
REPLACEMENT PARTS HOOD AND TANK Fig. 4 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Part No. H36145 H36147 H35551 H36151 H33576 H25209 H25697 H36146 H25693 H36148 H36728 H450821 H36353 A H25744 H25774 Part Description Panel, Control Cabinet .................................................................. Panel, Side RH .............................................................................. Tracks, Rack .................................................................................. Panel, Front ...
REPLACEMENT PARTS 1 2 3 14 A 15 16 4 A 5 A 16 4 5 6 A 8 7 8 10 9 12 11 12 Figure 5- Door Assembly 16
REPLACEMENT PARTS DOOR ASSEMBLY Fig. 5 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Part No. H25791 106486 107623 H160909 H160837 H34144 H15568 H30438 H33336 H25693 H36149 H33277 H32969 H35171 H260223 H37104 A H33387 H30194 Part Description Nut Plain ....................................................................................... Washer .......................................................................................... Nut Door Support ...................................................
REPLACEMENT PARTS 1 2 3 4 1 5 6 6 8 9 7 8 6 7 6 5 1 4 9 2 3 1 Figure 6- Wash and Rinse Arms 18
REPLACEMENT PARTS WASH AND RINSE ARMS Fig. 6 Item No. 1 2 3 4 5 6 7 8 9 Part No. 112551 112549 112793 112550 H34998 H190663 H36257 H36275 H36211 Part Description Bearing, Wash Arm ....................................................................... Hub, Wash Arm ............................................................................. Wash Arm ...................................................................................... Locknut, Wash Arm ...................................................
REPLACEMENT PARTS 1 2 3 9 4 8 7 4 13 4 4 11 10 12 16 15 14 Figure 7- Tank Components 20 5 6
REPLACEMENT PARTS TANK COMPONENTS Fig. 7 Item No. 1 2 3 4 5 6 7 8 ----9 10 11 12 ----13 14 15 16 Part No. H35162 113604 H36351 H34982 H441402 H460344 H36154 H34358 0510821 H180726 H36271 H36343 H15229 H35388 H00166 H180726 H25092 H25417 H36397 H33745 Part Description Heater 2000W 230V ..................................................................... Thermostat Handle ........................................................................ Support Plate, for Thermostat Handle .........................
REPLACEMENT PARTS 12 11 13 10 14 9 15 6 8 7 5 4 16 3 18 2 19 1 21 20 22 Figure 8- Rinse Aid Dispenser 22 17
REPLACEMENT PARTS RINSE AID DISPENSER Fig. 8 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ___ ___ ___ Part No. Part Description H15229 Locknut, Rinse Aid Dispenser ...................................................... H25757 Spacer Slotted ............................................................................... H36343 Support, Rinse Aid Dispenser ....................................................... H200117 Rubber Hose ........................................................
REPLACEMENT PARTS 1 2 3 4 6 8 9 5 7 18 13 17 14 14 10 11 20 19 12 16 14 15 Figure 9- Drain Assembly 24
REPLACEMENT PARTS DRAIN ASSMEBLY Fig. 9 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Part No. H32796 H32795 H36160 H35895 H25684 H35896 H32719 H25006 H34790 H26637 H31423 H32715 H30421 H25807 H32894 H32801 H36032 H35544 H35359 H28226 Part Description Cover, Round Filter ........................................................................ Bottom, Round Filter ..................................................................... Overflow Tube, Drain Pump .................................
REPLACEMENT PARTS 2 1 3 4 5 6 7 BOTTOM OF TANK 8 5 4 A 9 10 11 12 13 14 A Figure 10- Wash and Rinse Piping 26
REPLACEMENT PARTS WASH AND RINSE PIPING Fig. 10 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A Part No. H25807 110215 H35509 H25803 H00182 H35550 H36279 109466 H36280 H25808 H34828 H25809 H32894 H29043 Part Description Jubilee Clip ................................................................................... Screw SS ....................................................................................... Hub, Upper Arm ...........................................................................
REPLACEMENT PARTS 5 4 3 2 1 Figure 11- Pump Assembly 28
REPLACEMENT PARTS PUMP ASSEMBLY Fig. 11 Item No. 1 2 3 4 5 - Part No. H36354 H26224 H26204 H36355 H36356 Part Description Pump Body ................................................................................... Gasket Pump Body ....................................................................... Impeller ......................................................................................... Shaft Seal ......................................................................................
REPLACEMENT PARTS 1 6 2 5 7 3 5 6 Figure 12- Booster Assembly 30 8 4
REPLACEMENT PARTS BOOSTER ASSMEBLY Fig. 12 Part Item No. No. 1 H36250 H33400 2 H161123 3 109985 4 H35816 5 H25803 6 H00182 7 H36150 8 H34192 Part Description Heater 4000W 230/380V (40° Rise) ............................................. Heater 6000W 230/380V (70° Rise) ............................................. Element Cap .................................................................................. Oring .............................................................................................
REPLACEMENT PARTS 5 1 2 2 3 3 4 4 4 3 6 9 7 6 3 11 8 10 3 28 13 4 14 12 26 15 27 17 18 18 NOT SUPPLIED 16 19 25 19 3 4 20 24 22 23 Figure 13- Fill Piping Assembly 32 21 4
REPLACEMENT PARTS FILL PIPING ASSEMBLY Fig. 13 Item No. 1 2 3 4 5 -6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Part No. H36156 H36361 H25803 H00182 100500 900836 H36170 H36173 H36289 H36288 H36290 H160121 H25239 H34733 H25011 H25778 H18472 H25263 H25010 H26629 H36172 H36349 H280607 H160117 H36032 H33344 H34996 H200415 107550 Part Description Vacuum Breaker Mounting Box .................................................... Hose Barb .....................................................
REPLACEMENT PARTS 8 1 2 3 4 11 5 12 13 14 3 6 13 14 Figure 14- Control Panel Prior to S/N 54256 & After S/N 54305 34 5 10 9 6 7
REPLACEMENT PARTS CONTROL PANEL (PRIOR TO 54256 & AFTER S/N 54305) Fig. 14 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Part No. H36131 H35336 H32928 H35339 H32892 H32891 H35329 H35332 H35328 H35330 H35661 H32872 H450916 H460344 Part Description Data Plate ...................................................................................... Cap, Drain Pushbutton .................................................................. Lamp Neon Green ...............................................................
REPLACEMENT PARTS 4 7 9 4 1 6 11 AIN DR R WE PO RT STA CY CLE 3 SE RIN 3 SH WA 6 3 10 12 13 12 13 Figure 15- Control Panel S/N Range 54256 to S/N 54304 36 3 3 8 2 5 2
REPLACEMENT PARTS CONTROL PANEL (S/N RANGE 54257 TO 54304) Fig. 15 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Part No. H36648 H36799 H36795 H36801 H36798 H32891 H28870 H36797 H32892 H36796 H36800 H450916 H450916 Part Description Data Plate ..................................................................................... Key, Black Drain ........................................................................... Holder, D.25 Black ........................................................................
REPLACEMENT PARTS 1 12 2 3 5 4 10 9 7 8 11 6 13 Figure 15- Control Cabinet 38
REPLACEMENT PARTS CONTROL CABINET Fig. 15 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Part No. H160121 H31643 H31171 H34312 H36142 H31982 H29175 H36357 H260248 H29281 H36278 H34046 H33188 Part Description Hose, Black Rubber ...................................................................... Clamp, Hose .................................................................................. Pressure Switch ............................................................................. Relay TA2SFA 16A 230V ........
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Part 4: ELECTRICAL REPLACEMENT SCHEMATICS PARTS PART 4: ELECTRICAL SCHEMATICS 41
ELECTRICAL SCHEMATICS L1 1 208/230V/1 ~ 60HZ HC1 1 40 41 42 BH 6/9KW 1 1 L2 1 2 GND 2 JMCALLISTER SCALE SCALE SHEET SH1 OF 1 3JUN03 CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz, AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH. ALL POWER SUPPLIED TO EACH CONNECTION POINT MUST COMPLY WITH ALL LOCAL ELECTRIC CODES. DR.BY DATE PSW 21 3 21 REV.
40 BH 41 42 1 2 GND DR.BY DATE 2 JMCALLISTER SCALE SCALE SHEET SH1 OF 1 22SEP03 CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz, AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH. ALL POWER SUPPLIED TO EACH CONNECTION POINT MUST COMPLY WITH ALL LOCAL ELECTRIC CODES. FOR 3 PHASE DELTA CONNECTION 6/9KW BOOSTER HEAT HC1 L1 L2 L3 230V/3 ~ 60HZ 1 PSW 3 21 REV.
REPLACEMENT PARTS 45