Simply Engineered Better Technical Manual Undercounter Dishwasher Model 401-HTM2 PLUS 401-HTNM2 PLUS 401-LTM2 PLUS Machine Serial No. September, 2003 Manual P/N 0510645 2674 N. Service Road Jordan Station, Ontario, Canada L0R 1S0 Moyer Diebel, Ltd.
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REVISIONS Revision History Revision Date Revised Pages 7/16/03 All Serial Number Effectivity Comments Issue of manual and replacement parts lists.
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CONTENTS CONTENTS Page INTRODUCTION....................................................................................................................................... 1 WARRANTY .............................................................................................................................................. 2 GENERAL .................................................................................................................................................. 3 INSTALLATION ..............
CONTENTS Figure 9—Detergent Pump Assembly......................................................................................................... 32 Figure 10—Sanitizer/Rinse-Aid Pump Assembly....................................................................................... 34 Figure 11—Control Panel Assembly........................................................................................................... 36 Figure 12—Electrical Diagram, 401-HT PLUS ..........................................
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.
WARRANTY LIMITED WARRANTY Champion Industries/Moyer Diebel Limited, 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.
GENERAL GENERAL This manual covers the Moyer Diebel 401PLUS undercounter dishwashing machine. This machine is fully automatic and is equipped with a 1/2 H.P. pump motor. All models are available for mounting directly to the floor or on optional stands (see accessories listed on page 4).
GENERAL Accessories • 17RS - 17" rack stand (raises working height and adds rack storage) • 17T - 17" cabinet (raises working height and adds storage) • CST - Combination sink/table (scraping and sorting station) • 101285 - Dish Rack (Peg Rack) • 101273 - Silverware Rack (Flat Bottom Rack) Electrical Power Requirements Model Voltage Booster Rise Machine Full Load Amp Power Requirement (125% Service Factor) 401-LT PLUS 115/60/1 N/A 9 15 401-HTN PLUS 115/60/1 N/A 9 15 401-HT PLUS 20
INSTALLATION INSTALLATION Unpacking ! WARNING: Care should be taken when lifting the machine to prevent damage. 1. Immediately after unpacking your machine, inspect for any shipping damage. If damage is found, save the packing material and contact the carrier immediately. 2. Remove the dishwasher from the skid. Adjust the feet if required, then move the machine to its permanent location. 3. Level the machine (if required) by placing a level on the top of the machine and adjusting the feet.
INSTALLATION Plumbing Connections ! CAUTION: Plumbing connections must comply with local sanitary and plumbing codes. Water Connections 1. Connect the hot water supply (60°C/ 140°F Min) to the 1/2" I.D. fill hose provided. The fill solenoid valve is equipped with a flow control that will accept water pressures from 172 kPa/25 psi to 665 kPa/95 psi. 2.
INSTALLATION Completing Installation 1. Remove any foreign material from inside the machine. 2. Center the scrap screen over the sump opening. 3. Prime the booster using the following procedure (if applicable). ! CAUTION: To prime the booster, the folowing procedure must be followed AFTER the electrical and plumbing connections have been made. a. Remove the front panel. b. Locate the Installation and Service toggle switch on the extreme left side of of the control box. c.
OPERATION OPERATION Operation Summary The following is a summary of your Undercounter Dishwashing Machine operating cycle: 1. The cycle begins when you close and latch the door. 2. The green cycle lamp lights and the wash pump starts. 3. The pump runs during the wash cycle for approximately 80 seconds. The wash cycle duration is extended if the booster is not up to temperature. 4. The wash pump stops, and the drain valve is opened. 5.
OPERATION NOTE: The machine may be stopped at any time by opening the door. When restarted, the cycle does not start over. It will continue from the point at which it was interrupted. 7. 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 PLUS, 401-HTN PLUS and 60°C/140°F for model 401-LT PLUS. 8. The pump will automatically stop and the green cycle light will turn off indicating the cycle is completed. 9.
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.
MAINTENANCE Maintenance Schedule • • As Required 1. Check the temperature gauge reading to make sure that it is accurate. 2. Check the chemical supplies and refill as necessary. Weekly 1. Inspect all water lines for leaks and tighten them at joints if required. 2. Clean all detergent residue from the exterior of the machine. 3. Check the drain for leaks. 4. Remove and closely inspect the spray arms for blockage. 5. Check for damage to the scrap screen.
MAINTENANCE Deliming Your dishwasher should be delimed regularly. The frequency will depend on the mineral content of your water. Inspect your machine interior for lime deposits. If deliming is required, a deliming agent should be used for best results. ! DANGER: Deliming solution or other acids must not come in contact with household bleach (sodium hypochlorite) or any chemicals containing chlorine, iodine, bromine, or fluorine. Mixing will cause hazardous gases to form.
TROUBLESHOOTING TROUBLESHOOTING Before determining any specific cause of a breakdown or abnormal operation of your dishwasher, check that: 1. Power supply is turned on. All switches are ON. 2. Wash arms are clean. 3. Scrap screen is properly positioned and clean. 4. Thermostat is at the correct setting. 5. Sanitizer, detergent, and rinse additive dispensers are adequately filled. 6. All plumbing valves are open and drain hose is not kinked.
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REPLACEMENT PARTS REPLACEMENT PARTS 15
REPLACEMENT PARTS 00050 12 11 10 12 7 6 9 4 5 3 12 2 8 1 Figure 1 — Track and Panel Assembly 16
REPLACEMENT PARTS TRACK AND PANEL ASSEMBLY Fig. 1 Item No. 1 2 3 4 5 6 7 8 9 9 10 11 12 Part No. 0508751 0309572 0501413 0501415 0308632 0308631 0708647 0308736 0308734 0309573 0308737 0308735 0501412 Description Screw, 10-32 x 1-1/2" Lg. Truss Head ....................................... Front Panel ................................................................................. Screw, 10-32 x 3/8" Lg. Round Head......................................... Screw, 10-32 x 5/8" Lg. Round Head...............
REPLACEMENT PARTS 00020 11 1 4 5 7 8 6 10 12 9 3 1 13 14 2 1 18 15 16 17 Figure 2 — Door and Switch Assembly 18 15
REPLACEMENT PARTS DOOR AND SWITCH ASSEMBLY Fig. 2 Item No. Part No. Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 - 0501412 0308596 0308597 0508721 0709462 0509436 0508545 104883 0709431 111090 0508544 0508543 0501539 0503715 0501421 0708564 0501501 0708527 0508555 Screw, 10-32 x 3/8" Truss Head ................................................. Plate, Door Latch........................................................................ Handle, Door Latch .......................................
REPLACEMENT PARTS 00037A 1 9 TO RINSE 10 11 12 19 14 2 13 14 3 16 4 THERMOMETER (CALLED OUT IN CONTROL BOX) 7 TO DRAIN 6 6 5 TO PUMP DRAIN 8 Figure 3 — Tank/Drain Assembly 20
REPLACEMENT PARTS TANK/DRAIN ASSEMBLY Fig. 3 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Part No. 0508628 201029 0501836 0508872 0507265 0510082 0509302 0306618 0508578 104414 0508579 0308655 110562 108954 Description Scrap Screen............................................................................... Locknut, 1/2 NPT Nickel-Plated ................................................ O-Ring, Thermometer ................................................................ Adapter, Thermometer ...............
REPLACEMENT PARTS 00005 1 3 2 4 5 6 7 8 9 10 11 13 14 12 TANK BOTTOM Figure 4 — Pump Assembly 22
REPLACEMENT PARTS PUMP ASSEMBLY Fig. 4 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 *- Part No. 0508542 0501431 0501425 0508793 0502741 0502704 0502746 0502745 0502703 0502744 0502743 0501881 0508665 0508570 0710071 107966 Description Spindle, Lower Wash Arm ......................................................... Screw, 8-32 x 1-1/8" Round Head.............................................. Screw, 8-32 x 5/8" Round Head ................................................. Housing, Top ........................
REPLACEMENT PARTS 00038A 2 1 3 4 TOP OF HOOD 5 6 7 8 9 10 10 11 12 13 PUMP TANK BOTTOM 2 FROM PUMP Figure 5 — Wash System Assembly 24
REPLACEMENT PARTS WASH SYSTEM ASSEMBLY Fig. 5 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Part No. 0508549 0502563 0708650 0503588 0501412 0508541 0710593 0505042 0308783 0501563 0501684 0705049 0508540 Description Hose, Upper Wash...................................................................... Clamp, Hose 1" .......................................................................... Spindle, Upper Wash Arm.......................................................... O-ring, 1-1/8" x 1-3/8" ................
7 VE 6 5 FROM 9 FILL VA L 2 10 1 1 4 8 11 3 4 3 12 13 14 6 15 16 15 THERMOSTAT (CALLED OUT IN CONTROL BOX) REPLACEMENT PARTS Figure 6 — Booster Assembly and Water Inlet Piping (HT PLUS Only) 26
REPLACEMENT PARTS BOOSTER ASSEMBLY AND WATER INLET PIPING (HT PLUS ONLY) Fig. 6 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ------- Part No. 0503679 0509214 0502653 0508840 0501419 0501501 108954 110562 0509042 107417 0508817 109985 111235 111233 0501539 107908 110997 0307356 0508937 Description Clamp, hose................................................................................ Hose, 1/2" I.D.............................................................................
Figure 7 — Water Inlet Piping (HTN PLUS, LT PLUS Only) 28 2 TO FILL 2 1 5 6 7 8 9 3 4 13 10 12 11 2 3 4 WATER CONNECTION 14 00049 REPLACEMENT PARTS
REPLACEMENT PARTS Fig. 7 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Part No. 0503718 0503679 107417 107417 0502653 0504952 0502811 0505235 0504958 0501501 0501419 0300203 0502618 0505320 WATER INLET PIPING (HTN PLUS, LT PLUS ONLY) Description Foot, adjustable .......................................................................... Clamp, hose................................................................................ Hose, 1/2" ID (LT PLUS Only).................................................
30 From Sanitizer Rinse-aid Pumps From Detergent Pump 4 4 6 (See Corresponding Pump For Hose) 3 7 5 RH Side of Tank 4 4 3 2 2 From Top of Booster or From Fill Valve 3 8 1 REPLACEMENT PARTS 00039 Figure 8 — Fill System
REPLACEMENT PARTS FILL SYSTEM Fig. 8 Item No. 1 2 3 4 5 6 7 8 Part No. 107417 0501518 106090 107966 0509048 0508867 0501519 107417 Description Hose, 1/2" I.D. (HTN PLUS, LT PLUS).................................... Tie Wrap, Hose........................................................................... Bracket, Tie Wrap ...................................................................... Nut, Grip, 10-32 w/Nylon Insert ................................................ Gasket, Inlet Chute ..............
REPLACEMENT PARTS 1 Rinse Aid 00022 2 6 7 22 4 Detergent 1 23 2 3 21 5 24 25 6 TO FILL SYSTEM 7 4 25 11 26 12 8 13 14 9 10 19 TO FILL ASSY 15 20 16 15 16 17 15 15 18 19 20 TO DETERGENT SUPPLY Figure 9 — Detergent/Rinse Aid Pump Assemblies (HT PLUS, HTN PLUS) 32 TO CHEMICAL SUPPLY
REPLACEMENT PARTS DETERGENT/RINSE AID PUMP ASSEMBIES (HT PLUS, HTN PLUS) Fig. 9 Item No. Part No. Description 1 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 0503757 0503756 0308610 N/A 0501412 N/A 0501497 0504822 0501425 N/A N/A 108194 N/A N/A N/A 0501519 0502667 0502644 0503695 0306363 0501869 0501519 0707142 0706634 0506589 0502666 0505483 Motor, Pump (Detergent) ........................................................... Motor, Pump Injector (Rinse Aid) .....................
REPLACEMENT PARTS 00002 1 3 2 5 6 7 8 4 15 9 10 DETERGENT PUMP (SEE FIG.
REPLACEMENT PARTS DETERGENT/SANITIZER/RINSE-AID PUMP ASSEMBLIES LT PLUS ONLY Fig. 10 Item No. Part No. Description Qty 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0503756 0308610 0308697 0501412 0501497 0504822 0707142 0706635 0506589 0502666 0503694 0505483 0306363 0501869 0501519 Motor, Pump............................................................................... Bracket, Detergent/Rinse Pump ................................................ Bracket, Sanitizer Pump ....................................
1 Figure 11 — Control Panel Assembly 23 2 3 4 5 L1 T1 6 8 S L 36 L2 T2 21 7 22 25 15 12 11 10 13 9 14 24 FILL OFF 16 ON 18 17 19 20 21 00033A REPLACEMENT PARTS UP
REPLACEMENT PARTS CONTROL PANEL ASSEMBLY Fig. 11 Item No. *1 *1 *1 2 3 4 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 20 21 22 23 24 25 — — — Part No. 0710583 0708538 0708590 0504956 0501379 0308644 0308645 0503701 111703 0501358 0509428 0501403 0501493 0507709 0501533 0503749 0310330 109069 113622 0508551 0501361 0501369 0509568 0509626 0501412 0309579 0504951 0501373 111069 0510582 0509608 0509611 Description Timer assy (HT PLUS Only) (Includes items 2-5) ....................
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ELECTRICAL SCHEMATICS ELECTRICAL SCHEMATICS 39
ELECTRICAL SCHEMATICS TO CUSTOMER DISCONNECT SWITCH 115V 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.
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.
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.
TIMING CHARTS 00042M2 TIMING CHART 401-HTM2 CAM TIME IN SECS 1 HOMING CAM 2 WASH PUMP FORWARD=WASH 2 3 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 WASH PUMP REVERSE=DRAIN WASH PUMP REVERSING CAM DRAIN VALVE 4 DRAIN PUMP OPTIONAL 5 FILL VALVE 6 RINSE PUMP 7 DETERGENT PUMP 8 AUTO-FILL DRAIN 9 RINSE SENTRY OPTIONAL If booster thermostat is calling for heat, cam 9 will pause wash cycle until it reaches 82 C/180 F. N O SYNCHRON N C COM.
TIMING CHARTS 00043M TIMING CHART 401-LTM2 CAM TIME IN SECS 1 HOMING CAM 2 WASH PUMP FORWARD=WASH 3 WASH PUMP REVERSE=DRAIN WASH PUMP REVERSING CAM 4 DRAIN VALVE DRAIN PUMP 5 FILL VALVE 6 RINSE PUMP 7 SANITIZER PUMP 8 DETERGENT PUMP 9 AUTO-FILL DRAIN 2 10 20 30 40 50 60 70 80 90 100 110 N O 120 130 140 150 SYNCHRON N C 0 COM.
