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Moyer Diebel 401-HTN Technical Manual

Undercounter dishwasher
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See also: Operation & Installation Manual , Installation/operation Manual With Service Replacement Parts
Simply Engineered Better
February, 2003
2674 N. Service Road
Jordan Station, Ontario, Canada L0R 1S0
Moyer Diebel, Ltd.
Technical Manual
Undercounter
Dishwasher
Machine Serial No.
Manual
905/562-4195
Model
401-HT
401-HTN
401-LT
0509604
P/N
REV. G
Fax: 905/562-4618

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  • Page 1 Simply Engineered Better February, 2003 2674 N. Service Road Jordan Station, Ontario, Canada L0R 1S0 Moyer Diebel, Ltd. Technical Manual Undercounter Dishwasher Model 401-HT 401-HTN 401-LT Machine Serial No. Manual 905/562-4195 0509604 REV. G Fax: 905/562-4618...
  • Page 2 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, along with your customer account number. COPYRIGHT © 2003 by Moyer Diebel Serial Number ________________________ Phone _____________ Phone _____________ U.S.

  • Page 3: Revision History

    Revision History Revision Revised Serial Number Date Pages Effectivity 02/28/97 7791 09/09/98 7791 09/09/98 7791 02/28/00 40, 41, 42, 43 7791 07/21/00 17, 23, 37 7791 08/22/01 12/12/01 11/04/02 11/04/02 11/04/02 2/5/03 Comments Issue of manual and replacement parts lists. Changed booster tank part number.
  • Page 4 THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 5: Table Of Contents

    INTRODUCTION... 1 WARRANTY ... 2 GENERAL ... 3 INSTALLATION ... 5 Unpacking ... 5 Electrical Connections... 5 Plumbing Connections ... 6 Detergent ... 6 Rinse-Aid ... 6 Chemical Sanitizer ... 6 Completing Installation ... 7 OPERATION ... 8 Operation Summary ... 8 Operation Procedures ...
  • Page 6 Figure 10—Sanitizer/Rinse-Aid Pump Assembly... 34 Figure 11—Control Panel Assembly... 36 Figure 12—Electrical Diagram, 401-HT... 40 Figure 13—Electrical Diagram, 401-HTN... 41 Figure 14—Electrical Diagram, 401-LT ... 42 Figure 15—Electrical Diagram, 401-HT (50 Hz) ... 43 Figure 16—Timer Chart and Diagram, 401-HT, HTN ... 44...

  • Page 7: Introduction

    INTRODUCTION Welcome to Moyer Diebel. Thank you for choosing Moyer Diebel and for allowing us to take care of your dishwashing needs. This manual covers several models. Model numbers are shown on the front cover. Your machine has been completely assembled, inspected, and thoroughly tested at our factory to eliminate problems at installation before it was shipped to your installation site.

  • Page 8: Limited Warranty

    Champion Industries/Moyer Diebel Limited warrants all new machines of its manufacture bearing the name “Champion” or "Moyer Diebel" and installed within the United States and Canada to be free from defects in material and workmanship for a period of one (1) year after the date of installation or fifteen (15) months after the date of shipment by Champion/Moyer Diebel, whichever occurs first.

  • Page 9: General

    • The 401-HT model is a high temperature (82°C/180°F rinse) sanitizing model with booster. • The 401-HTN model is a high temperature (82°C/180°F rinse) sanitizing model without booster. • The 401-LT model is a low temperature (60°C/140°F rinse) sanitizing model for use with 5.25% or 8.4% sodium hypochlorite solution (chlorine bleach) as a sanitizing agent.
  • Page 10 • 101285 - Dish Rack (Peg Rack) • 101273 - Silverware Rack (Flat Bottom Rack) Electrical Power Requirements Model 401-LT 401-HTN 401-HT 401-HT 401-HT 401-HT NOTE: 208-230V/60Hz/1PH electrical supply service must be a 3-wire plus ground for connection as shown.

  • Page 11: Installation

    Immediately after unpacking your machine, inspect for any shipping damage. If damage is found, save the packing material and contact the carrier immediately. Remove the dishwasher from the skid. Adjust the feet if required, then move the machine to its permanent location.

  • Page 12: Plumbing Connections

    Have your chemical supplier check the concentration and make the necessary adjustments. NOTE: A nonchlorinated detergent is recommended for your dishwasher. Rinse Aid An optional rinse aid pump may be added for all models. Insert the labeled Rinse Aid pickup tube into the rinse aid container.

  • Page 13: Completing Installation

    To prime the booster, the following procedure must be followed AFTER the electrical and plumbing connections have been made and water has been turned on. Open the dishwasher door. Make sure the On-Fill/Off-Drain switch is in the Off-Drain position. Push the Detergent/Rinse prime switch “down” to the Rinse position.

  • Page 14: Operation

    Daily Operation Procedures The operation of your dishwasher will be more efficient when these procedures are followed: Check that the spray arm and scrap screen are in place. Close and latch the door. Push the ON/FILL switch to the ON position. The tank will begin filling with water.
  • Page 15 It will continue from the point at which it was interrupted. Check the rinse temperature during the final rinse (120 seconds into cycle). The rinse temperature must be 82°C/180°F minimum for models 401-HT and 401-HTN and 60°C/140°F for model 401-LT.

  • Page 16: Maintenance

    MAINTENANCE MAINTENANCE The efficiency and life of your machine is increased by 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. Components that are not regularly cleaned and flushed will clog and become inoperative.

  • Page 17: Deliming

    Check the deliming results and repeat if necessary per the chemical supplier’s specifications. Operate the dishwasher for at least four complete cycles to purge the machine of any deliming chemicals. For chemical sanitizing Model 401-LT, re-prime sanitizer chemical line and run an additional cycle to flush any excess sanitizer from machine.

  • Page 18: Maintenance Schedule

    MAINTENANCE Maintenance Schedule • As Required Check the temperature gauge reading. Check the chemical supplies and refill as necessary. • Weekly Inspect all water lines for leaks and tighten them at joints if required. Clean all detergent residue from the exterior of the machine. Check the drain for leaks.

  • Page 19: Troubleshooting

    TROUBLESHOOTING Before determining any specific cause of a breakdown or abnormal operation of your dishwasher, check that: Power supply is turned on. All switches are ON. Wash arm is clean. Scrap screen is properly positioned and clean. Thermostat is at the correct setting.
  • Page 20 THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 21: Replacement Parts

    REPLACEMENT PARTS REPLACEMENT PARTS...
  • Page 22 REPLACEMENT PARTS 00050 Figure 1 — Track and Panel Assembly...

  • Page 23: Figure 1-Track And Panel Assembly

    TRACK AND PANEL ASSEMBLY Fig. 1 Part Item No. 0508751 Screw, 10-32 x 1-1/2" Lg. Truss Head ... 0309572 Front Panel ... 0501413 Screw, 10-32 x 3/8" Lg. Round Head... 0501415 Screw, 10-32 x 5/8" Lg. Round Head... 0308632 Track, RH ... 0308631 Track, LH ...
  • Page 24 REPLACEMENT PARTS 00020 Figure 2 — Door and Switch Assembly...

  • Page 25: Figure 2-Door And Switch Assembly

    DOOR AND SWITCH ASSEMBLY Fig. 2 Part Item No. 0501412 Screw, 10-32 x 3/8" Truss Head... 0308596 Plate, Door Latch... 0308597 Handle, Door Latch ... 0508721 Retaining Ring, Plunger ... 0709462 Assembly, Door Catch (Includes items 4, 6)... 0509436 Plunger, Door Catch ... 0508545 Gasket, Steam...
  • Page 26 REPLACEMENT PARTS TO DRAIN Figure 3 — Tank/Drain Assembly 00037 THERMOMETER (CALLED OUT IN CONTROL BOX) TO PUMP...

  • Page 27: Figure 3-Tank/Drain Assembly

    TANK/DRAIN ASSEMBLY Fig. 3 Part Item No. 0508628 Scrap Screen... 201029 Locknut, 1/2 NPT Nickel-Plated... 0501836 O-Ring, Thermometer ... 0508872 Adapter, Thermometer ... 0501539 Nut, Plain 1/4-20 ... 0501501 Washer, Lock, 1/4" Split... 0308611 Support, Drain Valve ... 0306618 Valve, Drain... 0501418 Screw, 1/4-20 x 1/2"...
  • Page 28 REPLACEMENT PARTS 00005 TANK BOTTOM Figure 4 — Pump Assembly...

  • Page 29: Figure 4-Pump Assembly

    Fig. 4 Part Item No. 0508542 Spindle, Lower Wash Arm ... 0501431 Screw, 8-32 x 1-1/8" Round Head... 0501425 Screw, 8-32 x 5/8" Round Head ... 0502742 Housing, Top (No Hole)... 0502741 Diffuser... 0502704 Impeller ... 0502746 Adapter Plate, Suction... 0502745 Plate, Drain lnlet...
  • Page 30 REPLACEMENT PARTS 00038 PUMP TANK BOTTOM Figure 5 — Wash System Assembly...

  • Page 31: Figure 5-Wash System Assembly

    WASH SYSTEM ASSEMBLY Fig. 5 Part Item No. 0501563 Screw, #8 x 3/8" (Sheet Metal) Truss Head ... 0501684 Nut, Spray Arm Lock ... 0705049 Wash Arm, Lower ... 0508540 Bushing, Lower Wash Arm ... Description REPLACEMENT PARTS...

  • Page 32: Figure 6—Booster Assembly And Water Inlet Piping (Ht Only)

    REPLACEMENT PARTS Figure 6 — Booster Assembly and Water Inlet Piping (HT Only)

  • Page 33: Figure 7-Water Inlet Piping (Htn, Lt Only)

    BOOSTER ASSEMBLY AND WATER INLET PIPING Fig. 6 Part Item No. 0509214 Hose, 1/2" I.D... 0503679 Clamp, hose... 0502653 Elbow, 3/8 MPT X1/2 Hose x 90°... 0508840 Bushing, reducing 3/4 NPT x 3/8 NPT Brass ... 108954 Nut, grip 6-32 w/nylon insert ... 110562 Thermostat, high limit ...
  • Page 34 REPLACEMENT PARTS Figure 7 — Water Inlet Piping (HTN, LT Only)
  • Page 35 Fig. 7 Part Item No. 0503718 Foot, adjustable ... 0503679 Clamp, hose... 0502665 Hose, 1/2" I.D. clear braided (LT Only)... 0509214 Hose, 1/2" I.D. white (HTN Only) ... 0502653 Elbow, 3/8 MPT x 1/2" Hose x 90° Brass ... 0504952 Valve, solenoid (3/8NPT)...
  • Page 36 REPLACEMENT PARTS 00039 Figure 8 — Fill System...

  • Page 37: Figure 8-Fill System

    Fig. 8 Part Item No. 0502665 Hose, 1/2" I.D. Clear Braided (HTN, LT) ... 0501518 Tie Wrap, Hose... 106090 Bracket, Tie Wrap... 107966 Nut, Grip, 10-32 w/Nylon Insert ... 0509048 Gasket, Inlet Chute... 0508867 Inlet Chute ... 0501519 Tie Wrap, Chemical Hose ... 0509214 Hose, Fill 1/2"...

  • Page 38: Figure 9—Detergent Pump Assembly

    REPLACEMENT PARTS 00022 TO FILL ASSY TO DETERGENT SUPPLY Figure 9 — Detergent Pump Assembly (optional)

  • Page 39: Detergent Pump Assembly

    DETERGENT PUMP ASSEMBLY (OPTIONAL) Fig. 9 Part Item No. 0503757 Motor, Pump... 0308637 Bracket, Detergent Pump (except LT)... 0308610 Bracket, Detergent/Sanitizer Pumps (LT) ... Screw, M4 x 35mm Hex Head ... 0501412 Screw, 10-32 x 3/8" Lg. Truss Head ... Housing, Pump ...
  • Page 40 REPLACEMENT PARTS DETERGENT PUMP (SEE FIG. 9) Figure 10 — Sanitizer/(Optional) Rinse-Aid Pump Assembly TO FILL SYSTEM 00002 TO CHEMICAL SUPPLY...
  • Page 41 SANITIZER/(OPTIONAL) RINSE-AID PUMP ASSEMBLY Fig. 10 Part Item No. 0503756 Motor, Pump... 0308610 Bracket, Detergent/Rinse Pump (Optional)... 0308697 Bracket, Sanitizer Pump... 0501412 Screw, 10-32 x 3/8" Lg. Truss Head ... 0501497 Washer, Lock #8 Split ... 0504822 Screw, 8-32 x 1/2" Lg. Pan Head ... 0707142 Rotor Assy...

  • Page 42: Figure 11—Control Panel Assembly

    REPLACEMENT PARTS Figure 11 — Control Panel Assembly...
  • Page 43 CONTROL PANEL ASSEMBLY Fig. 11 Part Item No. 0708538 Timer assy (HT, HTN) (Includes items 2-5) ... 0708590 Timer assy (LT only) (Includes items 2-5)... 0504956 Motor, timer... 0501379 Switch, timer ... 0308644 Bracket, timer support ... 0503701 Bearing, timer... 111703 Contactor, 2 pole 50A, 240V (401 HT only) (Booster) ...
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  • Page 45: Electrical Schematics

    ELECTRICAL SCHEMATICS ELECTRICAL SCHEMATICS...

  • Page 46: Figure 12—Electrical Diagram, 401-Ht

    ELECTRICAL SCHEMATICS TO CUSTOMER DISCONNECT SWITCH 115V 230V CAM 8 PSDR BHTR BOOSTER HEATER BLACK BLUE CAM 1 HOMING CAM 2 PUMP MOTOR CAM 3 PUMP MOTOR REVERSING CAM 4 DRAIN CAM 5 FILL CAM 6 RINSE CAM 7 DETERGENT CAM 8 CYCLE CYCLE ON LIGHT...

  • Page 47: Figure 13—Electrical Diagram, 401-Htn

    GREEN HTLS HIGH LIMIT THERMOSTAT MAIN SWITCH ON/FILL OFF/DRAIN PSDR PRIME SWITCH DETERGENT, RINSE Figure 13 — Electrical Diagram, 401-HTN ELECTRICAL SCHEMATICS 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 ELECTRICAL CODES.

  • Page 48: Figure 14—Electrical Diagram, 401-Lt

    ELECTRICAL SCHEMATICS CAM 9 PSDR BLACK BLUE CAM 1 HOMING CAM 2 PUMP MOTOR CAM 3 PUMP MOTOR REVERSING CAM 4 DRAIN CAM 5 FILL CAM 6 RINSE CAM 7 SANITIZER CAM 8 DETERGENT CAM 9 CYCLE TO CUSTOMER RECEPTACLE 115V 60Hz CAM 1 CAM 2...

  • Page 49: Figure 15—Electrical Diagram, 401-Ht (50 Hz)

    TO CUSTOMER DISCONNECT SWITCH 230V NC NC BOOSTER TANK Cam 1 Cam 8 PSDR 115 VAC COIL BHTR BOOSTER HEATER BLACK BLUE CAM 1 HOMING CAM 2 PUMP MOTOR CAM 3 PUMP MOTOR REVERSING CAM 4 DRAIN CAM 5 FILL CAM 6 RINSE CAM 7...

  • Page 50: Timer Charts And Diagrams

    ELECTRICAL SCHEMATICS TIMING CHART 401-HT TIME IN SECS HOMING WASH PUMP FORWARD=WASH WASH PUMP REVERSE=DRAIN WASH PUMP REVERSING CAM DRAIN VALVE DRAIN PUMP FILL VALVE RINSE OPTIONAL PUMP DETERGENT PUMP AUTO-FILL DRAIN COM. TIMER SWITCH DETAIL Figure 16 —- Electrical Diagram, 401-HT, HTN 5 4 3 LOCKING SCREW TIMER ASSEMBLY 401-HT...

  • Page 51: Figure 17—Timer Chart And Diagram, 401-Lt

    TIMING CHART 401-LT TIME IN SECS HOMING WASH PUMP FORWARD=WASH WASH PUMP REVERSE=DRAIN WASH PUMP REVERSING CAM DRAIN VALVE DRAIN PUMP FILL VALVE RINSE PUMP SANITIZER PUMP DETERGENT PUMP AUTO-FILL DRAIN COM. TIMER SWITCH DETAIL TIMER ASSEMBLY 401-LT Figure 17 —Timer Chart and Diagram, 401-LT 5 4 3 LOCKING SCREW TIMING CHARTS...

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