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Moyer Diebel 301HT Technical Manual

Undercounter dishwasher high temperature with built-in booster
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Simply Engineered Better
June, 2005
P. O. Box 4183
Winston-Salem, North Carolina 27115-4149
336/661-1992
Fax: 336/661-1660
Undercounter
Dishwasher
www.moyerdiebel.com
Technical Manual
Model
301HT
High Temperature
with Built-in Booster
Machine Serial No.
113648
P/N
Manual
2674 N. Service Road
Jordan Station, Ontario, Canada L0R 1S0
905/562-4195
Rev H
Fax: 905/562-4618

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  • Page 1 June, 2005 P. O. Box 4183 Winston-Salem, North Carolina 27115-4149 336/661-1992 Fax: 336/661-1660 Technical Manual Undercounter Dishwasher Model 301HT High Temperature with Built-in Booster Manual www.moyerdiebel.com Machine Serial No. 113648 Rev H 2674 N. Service Road Jordan Station, Ontario, Canada L0R 1S0...
  • Page 2 AFTER S/N 45420 Machine Data Plate with model & serial number located on the lower left side of the machine. COPYRIGHT © 2005 by Moyer Diebel (USA). All Rights Reserved. Serial Number Phone Phone Moyer Diebel Limited (Canada) Phone: 1 (905) 562-4195...

  • Page 3: Revision Record

    Revision Record Revision Revised Date Pages 7/3/03 10/2/03 2, 30-31 10/14/03 22-23 10/14/03 2/11/04 8/4/04 14-15 8/4/04 16-17 1/18/05 1/18/05 16-17 1/18/05 1/18/05 1/18/05 1/18/05 36-37 6/6/05 16-17 Serial Number Effectivity —— First issue of manual and replacement parts lists Inserted pressure reducing valve information (107550).
  • Page 4 REVISION RECORD Revision Record (Cont.’)

  • Page 5: Limited Warranty

    Moyer Diebel within ten (10) days after installation. If warranty card is not returned to Moyer Diebel within such period, the warranty will expire after one year from the date of ship- ment.
  • Page 6 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.

  • Page 7: Table Of Contents

    TABLE OF CONTENTS R evision R ecord... L imited Warranty ... Forward... INSTALLATION ... OPERATION ... MAINTENANCE ... REPLACEMENT PARTS ... ELECTRICAL SCHEMATICS ... LIST OF FIGURES Figure – Control Panel Detail ... Figure – Power Switch Position ... Figure –...
  • Page 8 Part 1: INSTALLATION AND MAINTENANCE This Page Intentionally Left Blank...

  • Page 9: Installation And Maintenance

    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.

  • Page 10: Electrical Connections

    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. The electrician should compare the electrical specifications on the machine electrical data plate (located in the control panel) to the electrical power supply before connecting the machine to the incoming service at a fused disconnect switch.

  • Page 11: Rinse Aid

    Always wash the hands under running water if they come into contact with the detergent and comply with the specific instructions pertaining to the specific type of detergent. NOTE: A nonchlorinated detergent is recommended for your dishwasher. To prime the peristaltic pump: 1. Insert pump inlet hose into the detergent container.

  • Page 12: Completing The 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.

  • Page 13: 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.
  • Page 14 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.

  • Page 15: Maintenance

    MAINTENANCE The efficiency and life of your machine in increased be regularly scheduled preventive mainte- nance. 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.
  • Page 16 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.
  • Page 17 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.

  • Page 18: Troubleshooting

    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.
  • Page 19 TROUBLESHOOTING (CONT.) CONDITION CAUSE Insufficient pumped spray Clogged pump intake screen ... Clean pressure Clogged spray pipe ... Clean Scrap screen full ... Must be kept clean and in place Low water level in tank ... Check drain and overflow tube Defective pump seal ...
  • Page 20 This Page Intentionally Left Blank...

  • Page 21: Replacement Parts

    REPLACEMENT PARTS REPLACEMENT PARTS...
  • Page 22 REPLACEMENT PARTS Figure 4- Hood and Tank...

  • Page 23: Figure 4 - Hood And Tank

    Fig. 4 Part Item No. H36145 Panel, Control Cabinet ... H36147 Panel, Side RH ... H35551 Tracks, Rack ... H36151 Panel, Front ... H33576 Bottom Panel ... H25209 Foot, Adjustable ... H25697 Self-Tapping Screw 9 x 13 ... H36146 Panel, Side LH ... H25693 Self-Tapping Screw Bevel 2 x 13 ...

  • Page 24: Figure 5- Door Assembly

    REPLACEMENT PARTS Figure 5- Door Assembly...

  • Page 25: Door Assembly

    Fig. 5 Part Item No. H25791 Nut Plain ... 106486 Washer ... 107623 Nut Door Support ... H160909 Door Rod Plate ... H160837 Gasket ... H34144 Door Rod ... H15568 Door Dowels ... H30438 Door Spring ... H33336 Door Catch ... H25693 Self-Tapping Screw Bevel 2 x 13 ...

  • Page 26: Figure 6- Wash And Rinse Arms

    REPLACEMENT PARTS Figure 6- Wash and Rinse Arms...

  • Page 27: Wash And Rinse Arms

    WASH AND RINSE ARMS Fig. 6 Part Item No. 112551 Bearing, Wash Arm ... 112549 Hub, Wash Arm ... 112793 Wash Arm ... 112550 Locknut, Wash Arm ... H34998 Nut Spacer ... H190663 Bushing, Rinse Arm ... H36257 Rinse Nozzle ... H36275 Pin, Revolving Rinse Arm ...
  • Page 28 REPLACEMENT PARTS Figure 7- Tank Components...

  • Page 29: Figure 7 - Tank Components

    Fig. 7 Part Item No. H35162 Heater 2000W 230V ... 113604 Thermostat Handle ... H36351 Support Plate, for Thermostat Handle ... H34982 Screw M5 X 12 Half Round Head ... H441402 Pressure Gauge ... H460344 Plate Adhesive, Thermometer ... H36154 Bracket, Pressure Gauge ...

  • Page 30: Figure 8- Rinse Aid Dispenser

    REPLACEMENT PARTS Figure 8- Rinse Aid Dispenser...

  • Page 31: Rinse Aid Dispenser

    RINSE AID DISPENSER Fig. 8 Part Item No. H15229 Locknut, Rinse Aid Dispenser ... H25757 Spacer Slotted ... H36343 Support, Rinse Aid Dispenser ... H200117 Rubber Hose ... H33424 Hose Clamp ... H35392 90° Fitting Vlave, Rinse Aid ... H25211 Valve, Non Return Rinse Aid ...

  • Page 32: Figure 9 - Wash And R Inse Spray A Rms

    REPLACEMENT PARTS Figure 9- Drain Assembly...
  • Page 33 Fig. 9 Part Item No. H32796 Cover, Round Filter ... H32795 Bottom, Round Filter ... H36160 Overflow Tube, Drain Pump ... H35895 Scrap Screen ... H25684 Self-Tapping Screw 9 x 9 ... H35896 Sump Cover ... H32719 Rubber Sump ... H25006 Nut, Drain Suction ...

  • Page 34: Figure 10- Wash And Rinse Piping

    REPLACEMENT PARTS Figure 10- Wash and Rinse Piping BOTTOM OF TANK...

  • Page 35: Wash And Rinse Piping

    WASH AND RINSE PIPING Fig. 10 Part Item No. H25807 Jubilee Clip ... 110215 Screw SS ... H35509 Hub, Upper Arm ... H25803 Clamp, Hose ... H00182 Hose, Blue Rinse ... H35550 Wash Delivery Sleeve ... H36279 Lower Column ... 109466 O-ring ...

  • Page 36: Figure 11 - Pump/Motor A Ssembly

    REPLACEMENT PARTS Figure 11- Pump Assembly...
  • Page 37 Fig. 11 Part Item No. H36354 Pump Body ... H26224 Gasket Pump Body ... H26204 Impeller ... H36355 Shaft Seal ... H36356 Flange Wash Pump... H36129 Wash Pump Assy Complete ... PUMP ASSEMBLY Part Description REPLACEMENT PARTS...

  • Page 38: Figure 12- Booster Assembly

    REPLACEMENT PARTS Figure 12- Booster Assembly...
  • Page 39 Fig. 12 Part Item No. H36250 Heater 4000W 230/380V (40° Rise) ... H33400 Heater 6000W 230/380V (70° Rise) ... H161123 Element Cap ... 109985 Oring ... H35816 Rinse Aid Inlet Fitting ... H25803 Clamp, Hose ... H00182 Hose, Blue ... H36150 Booster Tank (Tank Only) ...

  • Page 40: Figure 13- Fill Piping Assembly

    REPLACEMENT PARTS NOT SUPPLIED Figure 13- Fill Piping Assembly...

  • Page 41: Fill Piping Assembly

    FILL PIPING ASSEMBLY Fig. 13 Part Item No. H36156 Vacuum Breaker Mounting Box ... H36361 Hose Barb ... H25803 Clamp, Hose ... H00182 Hose, Blue ... 100500 Vacuum Breaker 1/2"NPT ... 900836 Repair*Kit 1/2" Vacuum Breaker ... H36170 Hose Barb ... H36173 Cross Tee ...

  • Page 42: Figure 14 - Control Panel (Prior To Serial Number 54256 And A Fter 54305)

    REPLACEMENT PARTS Figure 14- Control Panel Prior to S/N 54256 & After S/N 54305...

  • Page 43: Control Panel

    (PRIOR TO 54256 & AFTER S/N 54305) Fig. 14 Part Item No. H36131 Data Plate ... H35336 Cap, Drain Pushbutton ... H32928 Lamp Neon Green ... H35339 Cap Blank ... H32892 Neon Light Bulb Green ... H32891 Light Bulb Holder ... H35329 Lamp Cover Green, Cycle ...

  • Page 44: Figure 15 - Control Panel (Serial Number R Ange 54257 To 54304)

    REPLACEMENT PARTS Figure 15- Control Panel S/N Range 54256 to S/N 54304...
  • Page 45 (S/N RANGE 54257 TO 54304) Fig. 15 Part Item No. H36648 Data Plate ... H36799 Key, Black Drain ... H36795 Holder, D.25 Black ... H36801 Push-buton, Double Pole Shunt ... H36798 Lamp Cover Clear D.25, Cycle ... H32891 Light Bulb Holder ... H28870 Light Bulb -Lux FM6, 3 230V ...
  • Page 46 REPLACEMENT PARTS Figure 15- Control Cabinet...

  • Page 47: Figure 16 - Control Cabinet

    Fig. 15 Part Item No. H160121 Hose, Black Rubber ... H31643 Clamp, Hose ... H31171 Pressure Switch ... H34312 Relay TA2SFA 16A 230V ... H36142 Timer 230V 60Hz ... H31982 Booster Heater Contactor 220V 50Hz ... H29175 Terminal Block ... H36357 Switch, Continous Wash ...
  • Page 48 This Page Intentionally Left Blank...

  • Page 49: Electrical Schematics

    Part 4: ELECTRICAL SCHEMATICS REPLACEMENT PARTS PART 4: ELECTRICAL SCHEMATICS...
  • Page 50 ELECTRICAL SCHEMATICS...
  • Page 51 ELECTRICAL SCHEMATICS REPLACEMENT PARTS...
  • Page 52 REPLACEMENT PARTS...

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