Moyer Diebel MD-44 Installation/Operation Manual With Service Replacement Parts
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Moyer Diebel MD-44 Installation/Operation Manual With Service Replacement Parts

Rack conveyor dishwasher 44" single tank
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Installation/Operation Manual with Service Replacement Parts
www.moyerdiebel.com
3765 Champion Boulevard
Winston-Salem, NC 27105
336/661-1992 Fax: 336/661-1660
Toll-free: 800.858.4477
Single Tank
Model MD-44
Single Tank w/Prewash
Model MD-66
2674 N. Service Road, Jordan Station
Ontario, Canada L0R 1S0
905/562-4195 Fax: 905/562-4618
Toll-free: 800.263.5798
Rack Conveyor Dishwasher
MD-44
44" Single Tank with built-in electric booster
MD-66
44" Single Tank with 22" Prewash
with built-in electric booster
Dishwasher serial no.
Issue Date: 12.2.10
Manual P/N 114725 rev. A
For machines beginning with S/N RM10050001 and above
Printed in USA

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Summary of Contents for Moyer Diebel MD-44

  • Page 1 Installation/Operation Manual with Service Replacement Parts Single Tank Model MD-44 www.moyerdiebel.com 3765 Champion Boulevard Winston-Salem, NC 27105 336/661-1992 Fax: 336/661-1660 Toll-free: 800.858.4477 Rack Conveyor Dishwasher MD-44 44" Single Tank with built-in electric booster MD-66 44" Single Tank with 22" Prewash...
  • Page 2 The USGBC and the CaGBC Member Logos are trademarks owned by the U.S. Green Building Council and The Canadian Green Building Council, respectively, and are used by permission. The logos signify only that Moyer Diebel is a USGBC member and a CaGBC member respectively.
  • Page 3 USE CANADIAN WARRANTY CARD IN CANADA AND USA WARRANTY CARD IN THE UNITED STATES. BUSINESS REPLY MAIL FIRST-CLASS MAIL PERMIT NO. 2101 WINSTON-SALEM, NC POSTAGE WILL BE PAID BY ADDRESSEE MOYER DIEBEL PO BOX 4183 WINSTON-SALEM, NC 27119-0981 NO POSTAGE...

  • Page 4: Warranty Registration Card

    WARRANTY REGISTRATION CARD Model Date of Installation: Company Name: Address: Telephone #: ( Contact: Installation Company: Address: Telephone #: Contact: This Card Must Be Returned to Validate Machine Warranty: IMPORTANT WARRANTY REGISTRATION CARD Model Date of Installation: Company Name: Address: Telephone #: ( Contact: Installation Company:...

  • Page 5: Revision History

    We reserve the right to make changes to this manual without notice and without incurring any liability by making the changes. Dishwasher owners may request a revised manual, at no charge, by calling (800) 263-5798 in Canada.

  • Page 6: Limited Warranty

    If a defect in workmanship or material is found to exist within the warranty period, Moyer Diebel, at its election, will either repair or replace the defective machine or accept return of the machine for full credit; provided;...

  • Page 7: Table Of Contents

    MD-44 and MD-66 Rack Conveyor Dishwashers  Revisions to this manual...i Limited Warranty ...ii Model Descriptions ...iv Installation ...1 Receiving ...1 MD-44 Direction Field Conversion... 2 Plumbing Connections... 10 Drain Connections ...11 Ventilation ...11 Electrical Connections ... 12 Chemical Signal Connections... 14 Vent Fan Signal Connection ... 14 Running &...

  • Page 8: Model Descriptions

    This model's direction of operation is convertible in the field. Model MD-66 Electric high temperature single tank with prewash tank rack conveyor dishwasher with a built-in electric booster in 40°F/22°C rise or optional 70°F/39°C rise. The installation of your dishwasher must be performed by qualified electricians, and plumbers and serviced by authorized service technicians trained in commercial dishwashers.

  • Page 9: Installation

    2. Check the dishwasher interior for curtains, panels and other supplies. 3. Lift the dishwasher off the shipping pallet and move the machine near its permanent location. 4. Leave a minimum of 6" between walls and the rear of the dishwasher.

  • Page 10: Md-44 Direction Field Conversion

    MD-44 Direction Field Conversion MD-44 Direction Field Conversion Conversion must be performed BEFORE the machine is permanently located and utilities connected. Access to the rear of the machine is required to perform the conversion. Parts Needed for Conversion (Supplied by Others) Qty.
  • Page 11 4A. Remove the black plug covering the hole on the top right rear of machine hood and install it in the hole where the upper rinse piping assembly was removed in Step 4. (continued on next page) MD-44 Direction Field Conversion MD-44 Direction Field Conversion...
  • Page 12 MD-44 Direction Field Conversion MD-44 Direction Field Conversion 5. Removing the final rinse manifold requires that the rear track be unfastened to provide clearance. Refer to the illustration below. Remove six bolts holding the track supports that connect the front and rear tracks, then remove the four bolts holding the rear track at each end of the machine.
  • Page 13 Install the drain hole seal removed in 7A in the drain hole. 9. Reverse the direction of the drain trunk piping by loosening the drain valve union and rotating the piping 180°. Tighten the drain valve union (see illustration below). MD-44 Direction Field Conversion MD-44 Direction Field Conversion = Hose...
  • Page 14 MD-44 Direction Field Conversion MD-44 Direction Field Conversion 10. R-L to L-R Conversion ONLY Rotate the drain piping assembly removed in Step 8 180° and install it on the opposite end of the machine. The easiest way to insert the piping is from the rear of the machine.
  • Page 15 12C. Cut 2 pieces of Type K, 3/4" copper tubing (supplied by others) and connect them using a Brass 7/8" OD x 90° ELL Compression Fitting (supplied by others). Connect the piping to the fitting on the booster outlet described in 12B. MD-44 Direction Field Conversion MD-44 Direction Field Conversion 46-1/2"...
  • Page 16 MD-44 Direction Field Conversion MD-44 Direction Field Conversion Changing Wire Connections in the Lower Junction Box The direction change requires that the rack switch and the final rinse switch connections must be reversed on the terminal bock located behind the front panel of the machine.
  • Page 17 MD-44 Direction Field Conversion MD-44 Direction Field Conversion...

  • Page 18: Hot Water Connections

    20-25 PSI/137.8-172.4 kPa. 6. Install a service shut-off valve in the supply line, as close to the dishwasher as possible. The size of the valve must be the same size or larger as the supply line.

  • Page 19: Drain Connections

    1. The 1-1/2" drain line was removed and packed inside the dishwasher prior to shipping. Install the drain line once the dishwasher has been placed in its final location. 2. Connect the 1-1/2" NPT drain line to above a drain sink or to a 1-1/2" or larger drain line connection.

  • Page 20: Installation

    Lock-out and tag the breaker to indicate that work is being performed on the circuit. ATTENTION A qualified electrician must connect the main incoming power to the dishwasher in accordance with all local codes and regulations or in the absence of local codes in accordance with the National Electrical Code.
  • Page 21 3. Check if all motors are running in the wrong direction. Reverse the L1 and L2 wires on the output side of the dishwasher Main Terminal Block (MTB) located inside the top-mounted control cabinet. 5. The photograph below shows the conveyor drive motor with its direction arrow.

  • Page 22: Chemical Signal Connections

    The Vent Fan Signal Connection supplies 120VAC to a control relay (supplied by others) when the dishwasher is ON and O VAC when the dishwasher is OFF. Power to operate the vent fan (supplied by others) must be supplied separately.

  • Page 23: Curtain Locations

    • Standard medium curtains • Standard short curtain 2. Make sure the that the short flaps of the curtains face the load end of the dishwasher. Medium Curtain NOTE: Misplacing a curtain or failing to install a curtain will adversely affect the proper operation of the machine.

  • Page 24: Door Safety Switches

    Dishwasher access doors are equipped with a door safety switch that automatically stops the dishwasher pumps and conveyor drive if a door is raised while the dishwasher is running. In addition, the dishwasher will not start if a door is left open.

  • Page 25: Scrap Screens

    Never remove the prewash scrap screen while the dish- washer is running. Model MD-44 and MD-66 have four scrap screens in the wash tank. Model MD-66 has a scrap screen and refuse basket located in the prewash tank. Installation Scrap Screens...

  • Page 26: Installing Spray Arms

    Installation Installing the Lower Spray arm Assembly Spray Arm O-ring Spray Arm Guide Lower Spray Arm Latch 1. The lower spray arm assembly is connected to the rear wall of the wash tank and locked into place by the spray arm latch. 2.

  • Page 27: Front Support

    The upper wash arm assembly is suspended from the top of the dishwasher hood interior by front and rear supports. Follow the instructions and illustrations below to install the upper wash arm assembly. Wash Arm Connection Flange Pin Connection Flange Upper wash arm assembly shown installed.
  • Page 28 Installation Installing the Upper Spray Arm Assembly (continued) 1. Upper Wash Arm Rear Guide Pin The rear guide pin is attached to the rear of the upper wash arm. It mates with the upper wash arm rear support. 2. Connection Flange Pins The connection flange pins are welded to the sides of the upper wash...
  • Page 29 The upper wash arm assembly is shown resting on the upper wash arm rear support as it slides toward the connection flange. Installing the Upper Spray Arm Assembly Upper Wash Arm 1. Open the dishwasher access Front Supports Upper Wash Arm Assembly 2. Slide the upper wash 3.

  • Page 30: Installing The Pawl Bar

    Roller Guide Roller The pawl bar assembly is installed in the center of the dishwasher and moves the dish racks through the machine. To install the pawl bar: 1. Position the pawl bar on the guide rollers located at each end of the machine.

  • Page 31: Installing The Curtains

    1. Curtain are equipped with curtain rods. The rods are hung on J-hooks located in the top of the dishwasher. 2. Make sure that the short flaps on the curtains face the load end of the dishwasher. 3. Refer to page 7, Curtain Locations, for additional information on curtain placement.

  • Page 32: Initial Start-Up Check List

    15. Insert an empty dish rack into the load end of the dishwasher. The pumps and conveyor will run. 16. Allow the dish rack to travel to the unload end of the dishwasher. The final rinse will run. 17. Allow the rack to exit the dishwasher. The dishwasher pumps should run an additional 90-seconds and stop.

  • Page 33: Control Panel Operation

    Model MD-44 Shown Control Panel Operation Proper reading is 20-22 PSI. Turns power on and off to the dishwasher. The machine wills automatically when the power is turned on. Indicates when the dishwasher is ready for automatic operation. Pushing the Start push button sets the machine for automatic operation.

  • Page 34: Operation

    Spread silverware evenly in a single layer in a flat rack or upright (loosely packed) in a cutlery rack/cylinder. 10. Push a dish rack into the load-end of the dishwasher until it contacts the idle pump switch lever, the conveyor and pumps will start.

  • Page 35: Cleaning And Maintenance

    Cleaning your dishwasher is the best maintenance you can do. The cleaning intervals below are the minimum requirements for most dishwashers. You may need to clean your dishwasher more often when washing heavily soiled wares or during long hours of continuous operation.
  • Page 36 Lime (scale) deposits are the result of minerals contained in the water feeding the dishwasher and appear as a white haze on the surface of the dishwasher. Severe scaling can appear as a granular deposit. These deposits are a result of the mineral content in the geographic area of the machine's location.
  • Page 37 Weekly 1. Inspect all water lines for leaks and tighten at joints if required. 2. Clean any detergent residue from the exterior of the machine. 3. Check that the drain/overflow pipes seat tightly in their drains. 4. Clean any accumulated scale from the heating element. 5.

  • Page 38: Troubleshooting

    Troubleshooting Before calling for service check the following conditions. 1. Dishwasher main power and water supply is on. 2. Machine has been assembled correctly. 3. Conveyor is clear of any obstructions. 4. Drains are closed. 5. Screens and pump intake screens are clear.

  • Page 39: Service Replacement Parts

    MD-66 Prewash Tank, Door and Curtains ... 44 Fill Piping ... 46 Final Rinse Piping... 48 MD-66 Prewash Spray Arms ... 50 MD-44, MD-66 Wash Spray Arms ... 52 MD-44 Track Assembly... 54 MD-66 Track Assembly... 56 MD-44 Pawl Bar Assembly ... 58 MD-66 Pawl Bar Assembly ...

  • Page 40: Control Panel

    Control.Panel...
  • Page 41 Item No. Part No. 100097 SCREW, TRUSS HD., 10-32 X 1/2" SST 333533 COVER, CONTROL CABINET 114768 DECAL 36" CONTROL CABINET 3-HOLE, PW-W-R 114767 DECAL 36" CONTROL CABINET 2-HOLE, W-R (not shown) 107440 THERMOMETER, 8FT. FLANGE (Qty..1.MD44).(Qty..3.MD66) 113622 THERMOMETER, 4FT. GAS FILLED (Qty..1.MD44.Only). 114758 PUSHBUTTON, RED SQUARE 0512917...

  • Page 42: Control Cabinet

    Control.Cabinet...
  • Page 43 Item No. Part No. 113936 LABEL, TABLE LIMIT SWITCH/ MACHINE RUN 107171 TERMINAL BLOCK, 4-POLE 111153 FUSE BLOCK, 600V 30A 112482 FUSE, 3.5A, LPCC 200-220-230-240/60/3 111497 FUSE, 2.0A, LPCC 460-480/60/3 108122 CONTACTOR, MTR. 12A (Qty. 2 for MD44, Qty. 3 for MD66) 111624 OVERLOAD, MTR.

  • Page 44: Extended Vent Cowls

    Extended.Vent.Cowls...
  • Page 45 Item No. Part No. 100073 SCREW, 1/4-20 X 1/2" TRUSS HD., SST 106026 WASHER, 1/4" FLAT 106482 WASHER, LOCK 1/4" SPLIT 106014 NUT, ACORN 1/4-20 333092 SPLASH SHEILD, VENT 8" EXTENDED 113828 ROD, CURTAIN 5/16" X 21-1/2" SST 114622 CURTAIN, 21-3/4" X 13-1/4" 401487 VENT STACK 4"...

  • Page 46: Wash Tank Door, Panels And Curtains

    Wash.Tank.Door,.Panels.and.Curtains. (L-R.Direction.Shown)
  • Page 47 Item No. Part No. 100212 SCREW, 10-32 X 3/4" TRUSS HD. 108250 ROD, CURTAIN 109723 CURTAIN, 24" X 6-1/4" (RINSE CURTAIN) 113691 GUIDE, U-CHANNEL, DOOR 113720 CURTAIN, 24" X 20-1/4" 113828 ROD, CURTAIN, .31"D X 21-1/2" LG. 308133 BRACKET, DOOR HOOK 317345 BRACKET, DOOR CATCH 328023...

  • Page 48: Wash Tank Heat, Float Switch And Scrap Screens

    Wash.Tank.Heat,.Float.Switch,.and.Scrap.Screens See Next Page Booster H = High-Limit Thermostat C = Control Thermostat (L-R.Direction.Shown)
  • Page 49 Item No. Part No. 100154 HEX PLAIN NUT, 5/16-18 SST 100547 LOCKNUT, 1/2" NPT SST 100740 BOLT, HEX HD., 5/16-18 X 1" SST 102376 WASHER, FLAT 5/16", SST 104882 WASHER, FLAT SST 106013 WASHER, LOCK 5/16" SPLIT 107089 HEX PLAIN JAM NUT, 1/2-13 SST 107589 WASHER, LOCK 1/2"...

  • Page 50: Wash Tank Junction Box Terminal Block

    Wash.Tank.Junction.Box.Terminal.Block...
  • Page 51 Item No. Part No. 114519 END BLOCK, E/NS 35N 114514 TERMINAL, SINGLE, ST 2/5 WH (WHITE) 114517 TERMINAL, DOUBLE STTB 2.5 114512 TERMINAL, SINGLE ST 2.5 (GRAY) 114513 TERMINAL, SINGLE, ST 2.5 BU (BLUE) 114516 END COVER, SINGLE TERMINAL D-ST 2.5 114518 END COVER, DOUBLE TERMINAL STTB 2.5 Wash.Tank.Junction.Box.Terminal.Block...

  • Page 52: Prewash Tank, Door And Curtains

    MD-66.Prewash.Tank,.Door.and.Curtains L-R.Direction.Shown...
  • Page 53 Item No. Part No. 100547 LOCKNUT, 1/2" NPT SST 102376 WASHER, FLAT 5/16" 108250 ROD, CURTAIN 104882 WASHER, FLAT .531" X 1.06" X .062" 106013 WASHER, LOCK 5/16" SPLIT SST 106014 HEX ACORN PLAIN NUT, 1/4-20 SST 107089 HEX PLAIN JAM NUT, 1/2-13 SST 107589 WASHER, LOCK, 1/2"...

  • Page 54: Fill Piping

    Fill.Piping MD-44 Fill From Booster Outlet (R-L.Direction.Shown) MD-66 Prewash Fill Only To Booster Inlet Main Water Connection...
  • Page 55 Item No. Part No. 100135 GAUGE, PRESSURE 0-60 PSI 100171 BUSHING, RED. FACE 3/4" X 1/2" BRASS 100184 NIPPLE, 3/4" NPT X CLOSE BRASS 100206 NIPPLE, 1/2" NPT X 2-1/2" LG. BRASS 100209 NIPPLE, 1/2" NPT X CLOSE BRASS 100500 VACUUM BREAKER, 1/2" NPT BRONZE 900836 KIT, REPAIR 1/2"...

  • Page 56: Final Rinse Piping

    Final.Rinse.Piping.
  • Page 57 Item No. Part No. 100156 LOCKNUT, 3/4" BRASS 108620 GASKET, RINSE MANIFOLD, 3/4" PIPING 111203 NOZZLE, VEE-JET #8003 113716 WASH ARM ORING 113795 PLUG, E FINAL RINSE MANIFOLD 114842 MANIFOLD, WELDMENT FINAL RINSE MD-RACK 0507451 NOZZLE, RINSE SS H-1/8-W-SS 8006 Description Final.Rinse.Piping Qty.

  • Page 58: Prewash Spray Arms

    MD-66.Prewash.Spray.Arms Rear of Hood...
  • Page 59 Item No. Part No. 100154 HEX PLAIN NUT, 5/16-18 SST 100734 BOLT, HEX HEAD, 1/4-20 SST 102376 WASHER, FLAT 5/16" SST 106026 WASHER, FLAT 1/4" SST 106013 WASHER, LOCK 5/16" SST 106014 HEX ACORN PLAIN NUT, 1/4-20 SST 106482 WASHER, LOCK 1/4" SPLIT SST 108345 GASKET, HEATER/STANDPIPE 111532...

  • Page 60: Wash Spray Arms

    MD-44,.MD-66.Wash.Spray.Arms Rear of Hood...
  • Page 61 333102 MANIFOLD TAPER ASSEMBLY, LOWER 333105 UPPER WASH SUPPORT ROD WELDMENT, MT-RACK 333460 FLANGE WELDMENT, WASH SYS. CONN. MT-RACK 333463 LATCH WASH SYS, LOWER MT-RACK 333566 BRACKET, UPPER WASH ADJUSTMENT MT-RACK 106482 WASHER, LOCK 1/4" SPLIT SST MD-44,.MD-66.Wash.Spray.Arms Description Qty.

  • Page 62: Track Assembly

    MD-44.Track.Assembly (L-R.Direction.Shown)
  • Page 63 PIN, IDLE PUMP SWITCH 113719 SWITCH, REED ALEPH 333082 TRACK WELDMENT, FRONT 44" MT-RACK 333083 TRACK WELDMENT, REAR 44" MT-RACK 333094 SWITCH WELDMENT, IDLE PUMP MT-RACK 333459 TRACK LOWER WASH SUPPORT MT-RACK 333568 PLATE, TRACK ADJUSTMENT MD-RACK MD-44.Track.Assembly Description Qty.

  • Page 64: Track Assembly

    MD-66.Track.Assembly (L-R.Direction.Shown)
  • Page 65 Item No. Part No. 100734 BOLT, HEX HD., 1/4-20 X 1/2" SST 100735 BOLT, HEX HD., 1/4-20 X 5/8" SST 100736 BOLT, HEX HD., 1/4-20 X 3/4" SST 100764 SCREW, ROUND HEAD 6-32 X 1/2" SST 106026 WASHER, FLAT 1/4" SST 106014 HEX ACORN PLAIN NUT, 1/4-20 SST 106482...

  • Page 66: Pawl Bar Assembly

    MD-44.Pawl.Bar.Assembly...
  • Page 67 SCREW, TRUSS HEAD, 10-32 X 1/2" SST 113714 RING RETAINING, 3/8" OD SHAFT 106481 HEX ACORN PLAIN NUT, 10-32 SST 333084 BRACKET, ROLLER ASSY. SUPT., MT-RACK 106486 WASHER LOCK, #10 SPLIT SST 100734 BOLT, HEX HEAD 1/4-20 X 1/2" SST MD-44.Pawl.Bar.Assembly Description Qty.

  • Page 68: Pawl Bar Assembly

    MD-66.Pawl.Bar.Assembly (L-R.Direction.Shown)
  • Page 69 Item No. Part No. 100141 HEX GRIP NUT, 1/4-20 SST CTR LOCK 114824 SPACER, PAWL BAR 204513 PAWL, CRADLE 100002 BOLT, 1/4-20 X 1-3/8" SST 333644 PAWL BAR DEVP, 66" MT-RACK 106482 WASHER, LOCK 1/4-20 SPLIT SST 303926 CROSSHEAD, PAWL BAR 100755 SCREW, FLAT HEAD 1/4-20 X 1/2"...

  • Page 70: Drive Motor Assembly

    Drive.Motor.Assembly...
  • Page 71 Item No. Part No. 0509199 DRIVE MOTOR SWITCH 327918 BRACKET, MOTOR SWITCH MOUNTING 113893 SHEAVE, MOTOR AK51 327916 PLATE, DRIVE MOTOR MOUNTING 327920 PLATE, 44 MOTOR ASSY. MOUNTING 327919 BRACKET, MOTOR SPRING MOUNTING 106482 WASHER, LOCK 1/4" SPLIT SST 102376 WASHER, FLAT 5/16" SST 113702 SPRING, 0.06"...

  • Page 72: .Conveyor.drive.assembly

    .Conveyor.Drive.Assembly Tank Bottom...
  • Page 73 Item No. Part No. 202381 ROLLER, CROSSHEAD 100868 ROLLER STUD, CROSSHEAD 107089 NUT, JAM 1/2-13 206300 CRANK, RACK ARM 206301 SHAFT, 5/8" OD X 8-3/8" LG. 206032 HOUSING, BEARING/SEAL 102244 SEAL, 5/8" 206303 GASKET/BEARING, SEAL 100382 BEARING, JAF #EK104-10 100007 SCREW, 10-32 X 3/8" TRUSS HEAD 104925 WASHER, 1/4"...

  • Page 74: .Pump/Motor.assembly

    .Pump/Motor.Assembly...
  • Page 75 Item No. Part No. 114347 PUMP/MOTOR ASSEMBLY (INCLUDES ITEMS 2-3) 208-240/460/60/3 2HP 114795 PUMP SEAL ASSEMBLY 114793 IMPELLER, 3.78" OD, COMPOSITE MTL .Pump/Motor.Assembly Description Qty.

  • Page 76: Pump Installation

    MD-44.Pump.Installation Wash...
  • Page 77 114347 PUMP/MOTOR ASSY. 208-240/460/60/3 2HP 207022 HOSE, PUMP DISCHARGE 327869 PLATE, E PUMP MOTOR SUPPORT 332172 PLATE, PUMP SUCTION HOOD 333076 BRACKET WELDMENT, PUMP MOTOR SUPPORT 319742 PUMP SUCTION SCREEN, MT-RACK 333469 FLANGE WELDMENT, PUMP SUCTION MT-RACK MD-44.Pump.Installation Description Qty.

  • Page 78: Pump Installation

    MD-66.Pump.Installation...
  • Page 79 Item No. Part No. 100154 HEX PLAIN NUT, 5/16-18 SST 100739 BOLT, HEX HD., 5/16-18 X 3/4" SST 100740 BOLT, HEX HD., 5/16-18 X 1" SST 102376 WASHER, FLAT 5/16" SST 104203 CLAMP, HOSE M52 SST GEAR TYPE 106013 WASHER, LOCK 5/16" SPLIT SST 109009 HEX GRIP NUT, 5/16-18 SST W/NYLON INSERT 109568...

  • Page 80: Electric Booster Assembly 40°F And 70°F Rise

    Electric.Booster.Assembly.-.40°F.and.70°F.Rise To Final Rinse (L-R.Direction.Shown) Water Inlet...
  • Page 81 Item No. Part No. 208-220/60/3 40°F Rise - 16kW 111235 HEATER, 5kW 107909 HEATER, 6kW 111235 HEATER, 5kW 208-220/60/3 70°F Rise - 27kW 111232 HEATER, 10kW 112059 HEATER, 12kW 111235 HEATER, 5kW 230-240/60/3 40°F Rise - 16kW 111236 HEATER, 5kW 114030 HEATER, 6kW 111236 HEATER, 5kW...

  • Page 82: Drain Assembly

    MD-44.Drain.Assembly.Model (L-R.Direction.Shown)
  • Page 83 HOSE, 1.625" ID X 4.75" LG. EPDM 304816 STRAINER, DRAIN 333268 DRAIN HANDLE WELDMENT 333511 BRACKET, DRAIN LEVER SUPPORT MT-RACK 601934 PIPING ASSY, RINSE DRAIN 114825 NAMEPLATE, DRAIN, MD-RACK 333933 DIVERTER, DEVELOPMENT, FINAL RINSE 305218 STRAINER, FINAL RINSE DRAIN MD-44.Drain.Assembly Description Qty.

  • Page 84: Drain Assembly

    MD-66.Drain.Asssembly (L-R.Direction.Shown) 32 23...
  • Page 85 Item No. Part No. 100036 TEE, 1-1/2" NPT GALVANIZED 100043 NIPPLE, 1-1/2" NPT X CLOSE, GALVANIZED 100589 UNION, 1-1/2" NPT GALVANIZED 100595 BUSHING, REDUCING 1-1/2" NPT X 3/4" NPT BRASS 100735 BOLT, HEX HD., 1/4-20 X 5/8" SST 100736 BOLT, HEX HD., 1/4-20 X 3/4" SST 101830 NIPPLE, 1-1/2"...

  • Page 86: Dish Racks

    Dish.racks...
  • Page 87 Item No. Part No. 101285 RACK, PEG 101273 RACK, COMBINATION Description Dish.racks Qty.
  • Page 88 Blank.Page This Page Intentionally Left Blank...
  • Page 89 Rack Control Module Operation Electrical Schematics...
  • Page 90 Note the illustration of the RCM at left and the details Booster Heat from the machine electrical schematic #702260 to the right. These illustrations show the location and connections from the RCM to the dishwasher. The Wash Heat function of the connectors are: H1 — Control Cabinet Inputs H2 —...
  • Page 91 PW upper float is up. (Model MD-66 Only) ATTENTION: The DR Level/Rinse Flt U and the Rinse Flt L are not used on the MD-44 and the MD-66 models. Rack Control Module (RCM) Operation Rack Control Module (RCM) Operation...

  • Page 92: Output Section

    Heat and Pause red input lights are on. OFF if Wash Flt L or Pause lights are off. DR/Rinse Heat - NOT USED FOR MODELS MD-44 AND MD-66. DR Pump - NOT USED FOR MODELS MD-44 AND MD-66. Output Section...
  • Page 93 RUN - ON when power is turned on to the RCM. THIS RUN LIGHT DOES NOT MEAN THAT THE DISHWASHER IS READY TO OPERATE. JUMPERS: Prewash - Enables the prewash input and output functions.
  • Page 94 Normal Operation Sequence The following illustration Plates show the condition of the indicator lights (On or Off) during the normal operation of the dishwasher. All lights are off when the dishwasher power is turned off. Plate 1: 1. Doors closed.

  • Page 95: Normal Operation Sequence

    Plate 3: 1. Doors closed. 2. POWER light ON. 3. Floats up. 4. Tanks full. 5. Tank heat enabled. 6. Booster heat enabled. 7. Initial fill complete. 8. Start push button pressed and released. 9. RUN LIGHT ON and Green light on front panel ON.
  • Page 96 Rack Control Module Operation Normal Operation Sequence Plate 5: 1. Doors closed. 2. POWER light ON. 3. Floats up. 4. Tanks full. 5. Tank heat enabled. 6. Booster heat enabled. 7. Rack switch de-activated. 8. Rack has moved through the machine to the final rinse zone and activated the final rinse switch.
  • Page 97 RCM Status/Jumpers Digital Display Rinse Reset Table Limit Switch Activated while Dishwasher is In-cycle Activating the Table Limit Switch pauses the RCM timer for a maximum of 5 minutes. After 5 minutes, the machine stops, the RUN LIGHT goes out and the START pushbutton must be pressed to operate the dishwasher.

  • Page 98: Automatic Operation

    Rack Control Module Operation Jam Switch Activated while Dishwasher is In-cycle Plate 9: 1. Doors closed. 2. POWER light ON. 3. RUN LIGHT OFF. 4. JAM SWITCH OFF. 5. Floats up. 6. Tanks full. 7. Tank heat Disabled. 8. Booster heat disabled.
  • Page 99 Plate 11: 1. Door closed. 2. POWER light ON. 3. Tanks empty. ALL FLOATS DOWN 4. Final rinse enabled. 5. Wash fill enabled. 6. Prewash fill enabled MD-66 Only 7. Tank heat disabled. 8. Booster heat disabled. LOWER FLOATS UP 9.

  • Page 100: Power Switch Off

    Rack Control Module Operation Front Panel Power Switch Turned Off while Dishwasher is In-cycle Plate 12: 1. Door closed. 2. POWER Switch OFF. 3. Floats up. 4. Tanks full. 5. Tank heat Disabled. 6. Booster heat disabled. 7. Pumps and drive disabled.
  • Page 104 This Page Intentionally Left Blank...

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