Moyer Diebel MD-44 manual

Installation/Operation Manual with Service Replacement Parts 2674 N. Service Road, Jordan Station Ontario, Canada L0R 1S0 905/562-4195 Fax: 905/562-4618 T oll-free: 800.263.5798 3765 Champion Boulevard Winston-Salem, NC 27105 336/661-1992 Fax: 336/661-1660 T oll-free: 800.858.4477 Issue Date: 12.2.10 Manual P/N 1 14725 rev . A For machines beginnin[...]

COPYRIGHT © 2010 All rights reserved Printed in the USA For future reference, record your dishwasher information in the box below . Model Number__________________________ Serial Number_______________________ V oltage________________Hertz_____________ Phase__________________ Champion Service Agent __________________________________ T el:___________[...]

NO POST AGE NECESSARY IF MAILED IN THE UNITED ST A TES BUSINESS REPL Y MAIL F I R S T -C L A S S M A I L P E R M I T N O. 2 1 0 1 W I N S T ON -S A L E M , N C P O S T AG E WI LL B E P A ID B Y AD D R E S S E E M OY ER DI EB E L P O BO X 4 18 3 W IN ST O N -S AL E M, N C 2 71 1 9 -0 98 1 A T TE NT IO N: Co mpl ete th e b ack of th e POSTAGE PAID WA[...]

IMPORTANT IMPORTANT Model Serial # Date of Installation: Company Name: T elephone #: ( ) --- Contact: Address: Address: T elephone #: Contact: Installation Company: (Street) State or Province Zip Code This Card Must Be Returned to V alidate Machine W arranty: W ARRANTY REGISTRA TION CARD IMPORTANT IMPORTANT Model Serial # Date of Installation: Comp[...]

i   Revision History Revision History   A revision might be a part number change, new instructions, or information that was not available at print time. 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 [...]

ii Limited Warranty LIMITED W ARRANTY Moyer Diebel, 3765 Champion Boulevard, Winston-Salem, North Carolina 27105, and P .O. Box 301, 2674 N. Service Road, Jordan Station, Canada, L0R 1S0, warrants machines, and parts, as set out below . W arranty of Machines: Moyer Diebel warrants all new machines of its manufacture bearing the name "Moyer Die[...]

iii MD-44 and MD-66 Rack Conveyor Dishwashers  Revisions to this manual........................................................................................................... i Limited W arranty ...................................................................................................................... ii Model Description[...]

iv Model Descriptions Model MD-44 Electric high temperature single tank rack conveyor dishwasher with a built-in electric booster in 40°F/22°C rise or optional 70°F/39°C rise. This model's direction of operation is convertible in the eld. Model MD-66 Electric high temperature single tank with prewash tank rack conveyor dishwasher with a[...]

1 Installation !!A TTENTION!! Use caution when moving or lifting the dishwasher to prevent damaging the dishwasher or the installation site. Check doorway and passageway clearance before moving the dishwasher . Remove dishwasher front panels and check under the machine base for obstructions before moving. 1. Inspect the dishwasher for shipping dama[...]

2 MD-44 Direction Field Conversion A TTENTION 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. MD-44 Direction Field Conversion Rinse Drain Piping Pawl Bar Cap Seal Plug Curtain Baffle Final Rinse Diverter Drain Screen Booster Pi[...]

3 MD-44 Direction Field Conversion MD-44 Direction Field Conversion Refer to the illustration on the previous page and note that machine assemblies are numbered from 1-8A and labeled. T o convert the machine, remove the assemblies in numerical order and reinstall them as described below . Remove the front panel. 1. Remove the pawl bar assembly . Re[...]

4 MD-44 Direction Field Conversion (continued) 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 [...]

5 8. Remove the rinse drain piping from the unload end of the tank. T o do this, remove three sections of black hose connecting the drain piping together (see the illustration below). The easiest way to remove the drain piping is from the rear of the machine. Remove the nipple in the 90° elbow then remove the elbow from the tank fitting. 8A. Remov[...]

6 MD-44 Direction Field Conversion (continued) MD-44 Direction Field Conversion 10. R-L to L-R Conversion ONL Y 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. Install drain basket and the elbow . Screw the nipple into t[...]

7 MD-44 Direction Field Conversion MD-44 Direction Field Conversion 12. L-R to R-L Conversion ONL Y 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. Install drain basket and the elbow . Screw the nipple into the elbow and[...]

8 13. Remove the junction box cover and identify the large terminal block located in the top left corner of the box. See the illustration below . 14. Refer to the illustration on the next page for the wiring diagram of the terminal block. Located the wires marked 16 and 17 on the terminal block and reverse them. Remove the existing wire labels and [...]

9 MD-44 Direction Field Conversion MD-44 Direction Field Conversion MOT OR DRIVE PUMP W ASH 32 33 31 HI LIMIT TST A T HARNESS FROM MAIN CABINET FINAL 15 14 13 5 3 3 3 3 3 RINSE SWITCH RACK SWITCH W ASH UPPER-LOWER FLO A T DOOR SWITCH TEMPERING SWITCH JAM V AL VE DRAIN 3 2 5 13 14 15 3 55 54 53 52 51 50 2 15 14 13 5 Y Y B W B R R R R R B R BL B R BL[...]

10 NOTE: Only qualified personnel should make dishwasher plumbing connections. Connections must meet local plumbing and sanitary codes. Improper installation is not covered be the dishwasher warranty . Hot W ater Requirements: 1. Connect a 3/4" NPT hot water supply line to the line strainer located at the top rear of the dishwasher . 2. For a [...]

1 1 Installation 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. 3. Observe all local p[...]

12 MACHINE ELECTRICAL CONNECTION !!A TTENTION!! Electrical and grounding connections must comply with the National Electrical Code or in the absence of a National Code then all Local Electrical Codes. A qualified electrician MUST compare the electrical power supply with the machine electrical specifications stamped on the MACHINE ELECTRICAL CONNECT[...]

13 1. Motor rotation was set at the factory . 2. The conveyor drive motor rotation is indicated by a red arrow located on the side of the motor . 3. Check if all motors are running in the wrong direction. 4. Reverse the L1 and L2 wires on the output side of the dishwasher Main T erminal Block (MTB) located inside the top-mounted control cabinet. 5.[...]

14 1. Use a qualified detergent/chemical supplier for detergent/chemical and dispensing equipment needs. 2. Labeled detergent control circuit connection terminals are provided in the control cabinet for detergent and rinse agent/sanitizer dispensing equipment (supplied by others). 3. The illustration at right, shows the terminal board for the machi[...]

15 Installation Curtain Locations 1. Refer to the illustrations below and hang the curtains as shown. J-hooks are located in the corners of each section to accept the curtain rods. • Standard long curtains 24" x 20-1/4" • Standard medium curtains 24" x 13-/14" • Standard short curtain 24" x 6-1/4" 2. Make sure th[...]

16 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. 1. If the dishwasher is running and a door is raised, then lighted GREEN ST ART pushbutton goes out[...]

17 Installation Scrap Screens 1. The model MD-44 and the MD-6 6 hav e scra p scre ens in the top of the wash tank. Install four scrap screens in the wash tank making sure they fit securel y without large gaps between them. 2. The model MD-66 has a prewash tank containing a single large scrap screen which extends from front to back in the prewash ta[...]

18 Installation Installing the Lower Spray arm Assembly Spray Arm O-ring Lower Spray Arm Latch Spray Arm Guide 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. The spray arm o-ring makes a water-tight seal when the latch locks the spray arm. 3. Slide the lower arm into p[...]

19 Installing the Upper Spray Arm Assembly Installation 1. Upper W ash Arm Rear Support The rear support holds the wash arm and serves as a guide when the upper wash arm is pushed to the toward the connection flange at the rear of the dishwasher . 2. Connection Flange The connection flange holds the wash arm securely in place when the upper wash ar[...]

20 1. Upper W ash 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 arm. These pins mate with two slots in the connection flange to hold the wash arm in place when installed[...]

21 Installing the Upper Spray Arm Assembly Installation 3 4 5 Upper W ash Arm Rear Support Upper W ash Arm Front Supports Upper W ash Arm Assembly Connection Flange 1 2 The upper wash arm assembly is shown resting on the upper wash arm rear support as it slides toward the connection flange. The upper wash arm assembly is shown resting on the upper [...]

22 Installation Installing the Pawl Bar Crosshead Brass Crosshead Roller Guide Roller Pawl Bar 1. Position the pawl bar on the guide rollers located at each end of the machine. 2. Lower the pawl bar so the crosshead fits on top of the brass crosshead roller . 3. The crosshead roller must fit inside the crosshead without binding. 4. Check the alignm[...]

23 Installation Installing the Curtains Short Curtain J-hook Long Curtain Medium Curtain 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 informat[...]

24 1. Remove white protective film from the dishwasher exterior . 2. Install lower panels to the dishwasher . 3. Remove any foreign material from inside of the machine. 4. Check dishwasher drain/overflows are closed and in securely seated. 5. Install scrap screens, spray arms and pawl bar . 6. T urn main utilities to the dishwasher ON. (Power , wat[...]

25 Operation Control Panel Operation The final rinse pressure gauge is located behind the control panel. The top-mounted control panel contains the Power ON/OFF switch, start push button, stop push button, and the water temperature gauges for the wash tank and the final rinse. The function of these controls are: A Final Rinse Pressure Gauge - Indic[...]

26 Operation 1. Check that the spray pipes, curtains, and scrap screens are in place and clean. 2. Check that the overflow drains are closed. 3. Check the chemical supplies. Turn on the detergent dispenser switches. 4. Turn on the exhaust vent system (if applicable), and make sure it is operating. 5. Close the door(s). Push the power switch ON, lig[...]

27 Cleaning Cleaning your dishwasher is the best maintenance you can do. The cleaning intervals below are the minimum requirements for most dishwashers. Y ou may need to clean your dishwasher more often when washing heavily soiled wares or during long hours of continuous operation. Daily or every 2 hours of operation 1. T urn power switch to OFF . [...]

28 CAUTION: De-liming agents can cause chemical burns. Wear rubber gloves, eye protection and any other protective clothing as instructed by a qualified chemical supplier and follow the instructions provided by the chemical supplier . W ARNING: Death or injury can result from toxic fume when de-liming agents come in contact with Chlorine Bleach, or[...]

29 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. Inspect the spray arms for any damage or missing parts. 6. Inspect the fin[...]

30 Condition Cause Solution Dishwasher will not run. Low or no water . Door not closed. Main power OFF . Dishwasher OFF . Dish rack inserted wrong Main water supply off. PRV setting incorrect Solenoid strainer clogged. Solenoid valve defective. Close door completely . Check breaker on panel. T urn dishwasher ON. Check dish rack loading. Open supply[...]

31 Service Replacement Parts Illustrations Page Control Panel ................................................................................................................................................ 32 Control Cabinet..........................................................................................................................[...]

 1 10 11 12 7 8 8 2 3 4 6 5 5 1 9 9 32[...]

 1 100097 SCREW , TRUSS HD., 10-32 X 1/2" SST 3 2 333533 COVER, CONTROL CABINET 1 3 1 14768 DECAL 36" CONTROL CABINET 3-HOLE, PW-W -R 1 4 1 14767 DECAL 36" CONTROL CABINET 2-HOLE, W-R (not shown) 1 5 107440 THERMOMETER, 8FT . FLANGE   ?[...]

 9 10 5 6 7 8 1 2 3 4 1 1 1 1 1 1 12 13 22 14 17 19 20 23 24 25 26 27 21 18 15 16 SIGNAL ONL Y LIMIT TABLE RUNNING MACHINE SWITCH 34[...]

 1 1 13936 LABEL, T ABLE LIMIT SWITCH/ MACHINE RUN 1 2 107171 TERMINAL BLOCK, 4-POLE 1 3 1 1 1 153 FUSE BLOCK, 600V 30A 2 4 1 12482 FUSE, 3.5A, LPCC 200-220-230-240/60/3 2 --- 1 1 1497 FUSE, 2.0A, LPCC 460-480/60/3 2 5 108122 CONT ACTOR, MTR. 12A (Qty . 2 for MD44, Qty . 3 for MD66) A/R 6 1 1 1624 OVERLO[...]

  1 5 6 7 8 10 1 1 9 10 1 1 2 3 4 36[...]

  1 100073 SCREW , 1/4-20 X 1/2" TRUSS HD., SST 6 2 106026 W ASHER, 1/4" FLA T 6 3 106482 W ASHER, LOCK 1/4" SPLIT 6 4 106014 NUT , ACORN 1/4-20 6 5 333092 SPLASH SHEILD, VENT 8" EXTENDED 1 6 1 13828 ROD, CUR T AIN 5/16" X 21-1/2" SST 1 7 1 14622 CUR T AIN, 21-3/[...]

    1 2 3 4 4 5 6 9 12 13 14 15 16 19 20 18 19 21 1 1 20 24 1 22 22 23 25 7 8 10 17 17 18 18 38[...]

1 100212 SCREW , 10-32 X 3/4" TRUSS HD. 4 2 108250 ROD, CURT AIN 1 3 109723 CURT AIN, 24" X 6-1/4" (RINSE CURT AIN) 1 4 1 13691 GUIDE, U-CHANNEL, DOOR 2 5 1 13720 CUR T AIN, 24" X 20-1/4" 2 6 1 13828 ROD, CUR T AIN, .31"D X 21-1/2" LG. 2 7 308133 BRACKET , DOOR HOOK 1 8 317345 BRACKET , DOOR CA TCH 2 9 328023 BAFF[...]

  T o Booster 1 3 4 4 6 9 10 1 1 13 20 22 15 23 24 21 28 28 27 26 25 21 29 14 17 18 19 16 2 2 12 14 5 7 8 H H = High-Limit Thermostat C = Control Thermostat C C H See Next Page ?[...]

  1 100154 HEX PLAIN NUT , 5/16-18 SST 4 2 100547 LOCKNUT , 1/2" NPT SST 3 3 100740 BOL T , HEX HD., 5/16-18 X 1" SST 4 4 102376 W ASHER, FLA T 5/16", SST 8 5 104882 W ASHER, FLA T SST 1 6 10601[...]

   42 1 1 3 5 2 4 6 7[...]

   1 1 14519 END BLOCK, E/NS 35N 2 2 1 14514 TERMINAL, SINGLE, ST 2/5 WH (WHITE) 1 3 1 14517 TERMINAL, DOUBLE STTB 2.5 4 4 1 14512 TERMINAL, SINGLE ST 2.5 (GRA Y) 2 5 1 14513 TERMINAL, SINGLE, ST 2.5 BU (BLUE) 6 6 1 14516 END COVER, SINGLE[...]

  31 29 23 23 28 25 24 26 27 5 30 14 10 19 12 16 15 18 17 22 19 20 21 22 12 14 13 8 9 1 1 1 7 3 6 2 4  44[...]

  1 100547 LOCKNUT , 1/2" NPT SST 1 2 102376 W ASHER, FLA T 5/16" 3 12 108250 ROD, CURT AIN 1 3 104882 W ASHER, FLA T .531" X 1.06" X .062" 1 4 106013 W ASHER, LOCK 5/16" SPLIT SST 3 5 106014 HEX ACORN PLAI[...]

  46 T o Booster Inlet Main W ater Connection 1 12 20 2 3 3 3 3 4 5 5 3 6 7 7 8 9 10 1 1 13 14 15 16 17 18 19 21 22 21 23 24 26 31 26 28 29 30 25 17 27 32 4 5 6 9 1 1 12 15 16 18 26 29 33 30 From Booster Outlet MD-66 Prewash Fill Only MD-44 Fill[...]

 1 100135 GAUGE, PRESSURE 0-60 PSI 1 2 100171 BUSHING, RED. F ACE 3/4" X 1/2" BRASS 1 3 100184 NIPPLE, 3/4" NPT X CLOSE BRASS 8 4 100206 NIPPLE, 1/2" NPT X 2-1/2" LG. BRASS 2 5 100209 NIPPLE, 1/2" NPT X CLOSE BRASS 2 6 100500 V ACUUM BREAKER, 1/2" NPT BRONZE 2 --- 900836 KIT , REP [...]

 3 5 4 4 5 2 1 6 7 48[...]

 1 100156 LOCKNUT , 3/4" BRASS 1 2 108620 GASKET , RINSE MANIFOLD, 3/4" PIPING 1 3 1 1 1203 NOZZLE, VEE-JET #8003 4 4 1 13716 W ASH ARM ORING 2 5 1 13795 PLUG, E FINAL RINSE MANIFOLD 2 6 1 14842 MANIFOLD, WELDMENT FINAL RINSE MD-RACK 1 7 0507451 NOZZLE, RINSE SS H-1/8-W-SS 8006 3 49 It[...]

  1 2 4 3 5 7 8 8 12 6 9 10 1 1 13 Rear of Hood 14 50[...]

  1 100154 HEX PLAIN NUT , 5/16-18 SST 4 2 100734 BOL T , HEX HEAD, 1/4-20 SST 4 3 102376 W ASHER, FLA T 5/16" SST 4 4 106026 W ASHER, FLA T 1/4" SST 4 5 106013 W ASHER, LOCK 5/16" SST 4 6 106014 HEX ACORN PLAIN NUT , 1/4-20 SST 4 7 106482 W ASHER, LOCK 1/4"[...]

  Rear of Hood 2 4 20 19 14 18 17 2 10 12 16 17 4 6 7 13 7 9 15 1 1 3 6 8 1 10 19 20 20 4 8 8 52[...]

  1 100154 HEX PLAIN NUT , 5/16-18 SST 4 2 100734 BOL T , HEX HEAD, 1/4-20 SST 4 3 102376 W ASHER, FLA T 5/16" SST 8 4 106026 W ASHER, FLA T 1/4" SST 8 5 106013 W ASHER, LOCK 5/16" SPLIT SST 8 6 106014 HEX ACORN PLAIN NUT , 1/4-20 SST 4 7 108345 GASKE[...]

   2 5 6 7 12 13 1 7 15 16 3 4 7 8 9 1 1 10 14 1 1 8  54[...]

   1 100734 BOL T , HEX HD., 1/4-20 X 1/2" SST 8 2 100735 BOL T , HEX HD., 1/4-20 X 5/8" SST 8 3 100736 BOL T , HEX HD., 1/4-20 X 3/4" SST 4 4 100764 SCREW , ROUND HEAD 6-32 X 1/2" SST 4 5 106026 W ASHER, FLA T 1/4" SST 16 6 106014 HEX ACORN PLAIN NUT , 1/4-20 SST [...]

   1 3 5 5 7 6 4 7 6 7 5 2 8 9 1 7 13 10 14 18 17 16 15 12 1 1  56[...]

   1 100734 BOL T , HEX HD., 1/4-20 X 1/2" SST 8 2 100735 BOL T , HEX HD., 1/4-20 X 5/8" SST 8 3 100736 BOL T , HEX HD., 1/4-20 X 3/4" SST 8 4 100764 SCREW , ROUND HEAD 6-32 X 1/2" SST 4 5 106026 W ASHER, FLA T 1/4" SST 24 6 106014 HEX ACORN PLAIN NUT , 1/4-20 SST [...]

  1 1 7 2 2 4 6 5 8 3 9 9 6 9 1 1 12 12 4 9 10 10 6 6 15 15 16 19 20 21 14 13 17 18 16 16 58[...]

  1 100141 HEX GRIP NUT , 1/4-20 SST CTR LOCK 9 2 1 14824 SP ACER, P A WL BAR 10 3 204513 P A WL, CRADLE 5 4 100002 BOL T , 1/4-20 X 1-3/8" SST 9 5 333079 P A WL BAR DEVP . 44" MT -RACK 1 6 106482 W ASHER, LOCK 1/4-20 SPLIT SST 4 7 303926 CROSSHEAD, P A WL BAR 1 8 100755[...]

  1 1 7 15 22 2 2 3 4 10 9 6 8 6 5 4 9 1 1 12 12 10 6 16 19 20 14 13 17 18 18 20 21 6 9 16 16  60[...]

  1 100141 HEX GRIP NUT , 1/4-20 SST CTR LOCK 10 2 1 14824 SP ACER, P A WL BAR 16 3 204513 P A WL, CRADLE 8 4 100002 BOL T , 1/4-20 X 1-3/8" SST 10 5 333644 P A WL BAR DEVP , 66" MT -RACK 1 6 106482 W ASHER, LOCK 1/4-20 SPLIT SST 8 7 303926 CROSSHEAD, P A WL BAR 1 8 1007[...]

1 15 2 3 16 4 5 15 17 7 6 8 9 10 7 14 13 12 1 1 1 1 13 7   62[...]

  1 0509199 DRIVE MOTOR SWITCH 1 2 327918 BRACKET , MOTOR SWITCH MOUNTING 1 3 1 13893 SHEA VE, MOTOR AK51 1 4 327916 PLA TE, DRIVE MOTOR MOUNTING 1 5 327920 PLA TE, 44 MOTOR ASSY . MOUNTING 1 6 327919 BRACKET , MOTOR SPRING MOUNTING 1 7 106482 W ASHER, LOCK 1/4" SPLIT SST 4 8 102376 W[...]

14 15 21 22 24 23 25 24 20 19 19 21 20 17 1 3 4 5 7 6 8 9 10 1 1 12 13 18 2 16 T ank Bottom   64[...]

  1 202381 ROLLER, CROSSHEAD 1 2 100868 ROLLER STUD, CROSSHEAD 1 3 107089 NUT , JAM 1/2-13 1 4 206300 CRANK, RACK ARM 1 5 206301 SHAFT , 5/8" OD X 8-3/8" LG. 1 6 206032 HOUSING, BEARING/SEAL 1 7 102244 SEAL, 5/8" 1 8 206303 GASKET/BEARING, SEAL 1 9 100382 BEARING, J[...]

  3 2 1 66[...]

  67 Item No. Part No. Description Qty . 1 1 14347 PUMP/MOTOR ASSEMBL Y (INCLUDES ITEMS 2-3) 1 208-240/460/60/3 2HP 2 1 14795 PUMP SEAL ASSEMBL Y 1 3 1 14793 IMPELLER, 3.78" OD, COMPOSITE MTL 1[...]

 10 1 1 13 12 18 8 17 15 3 3 4 6 1 16 14 2 7 4 4 5 9 5 6 1 Wash 68[...]

 1 100154 HEX PLAIN NUT , 5/16-18 SST 8 2 100739 BOL T , HEX HD., 5/16-18 X 3/4" SST 4 3 100740 BOL T , HEX HD., 5/16-18 X 1" SST 8 4 102376 W ASHER, FLA T 5/16" SST 16 5 104203 CLAMP , HOSE M52 SST GEAR TYPE 2 6 106013 W ASHER, LOCK 5/16" SPLIT SST 16 7 109009[...]

 2 6 19 20 8 13 10 4 5 5 9 4 6 1 8 12 3 3 4 4 6 1 Prewas h Wash 10 1 1 13 12 18 8 15 3 3 4 6 1 16 14 4 4 5 9 5 6 1 21 17 70[...]

 71 Item No. Part No. Description Qty . 1 100154 HEX PLAIN NUT , 5/16-18 SST 16 2 100739 BOL T , HEX HD., 5/16-18 X 3/4" SST 4 3 100740 BOL T , HEX HD., 5/16-18 X 1" SST 16 4 102376 W ASHER, FLA T 5/16" SST 32 5 104203 CLAMP , HOSE M52 SST GEAR TYPE 4 6 106013 W ASH[...]

  19 13 16 12 7 17 18 20 21 22 23 24 22 25 4 14 15 4 8 5 6 9 9 1 1 10 4 1 3 2 Wa ter Inlet T o Final Rinse  72[...]

  4 109985 SEAL, ELECTRIC HEA TER FLANGE 3 5 100003 NUT , PLAIN 1/4-20 SST 9 6 106482 W ASHER, LOCK 1/4" SPLIT 9 7 328254 BRACKET , FRONT BOOSTER 1 8 100739 BOL T , 5/16-18 X 3/4" HEX HD. SST 2 9 102[...]

  3 20 30 31 25 29 17 22 19 16 1 1 28 2 9 9 7 12 13 1 1 1 1 24 8 5 6 4 10 23 27 1 10 14 26 21 15 18 24  74[...]

  1 100036 TEE, 1-1/2" NPT GAL V ANIZED 1 2 100043 NIPPLE, 1-1/2" NPT X CLOSE, GAL V ANIZED 1 3 1001 13 CAP , 3/4" NPT SST 1 4 100735 BOL T , HEX HD., 1/4-20 X 5/8" SST 2 5 100736 BOL T , HEX HD., 1/4-20 X 3/4" SST 4 6 102376 W ASHER, FLA T 5/16" SST 4 7 10244[...]

  5 13 6 8 9 1 1 13 14 15 15 16 17 18 20 20 25 26 27 28 30 33 34 1 3 1 2 4 7 10 12 19 21 22 23 24 21 2 32 32 23 31 36 31 1 13 37 29 33 5 25 27 6 8 13 18 24 35  76[...]

  1 100036 TEE, 1-1/2" NPT GAL V ANIZED 3 2 100043 NIPPLE, 1-1/2" NPT X CLOSE, GAL V ANIZED 3 3 100589 UNION, 1-1/2" NPT GAL V ANIZED 1 4 100595 BUSHING, REDUCING 1-1/2" NPT X 3/4" NPT BRASS 1 5 100735 BOL T , HEX HD., 1/4-20 X 5/8" SST 4 6 100736 BOL T , HEX [...]

1 2  78[...]

 1 101285 RACK, PEG 1 2 101273 RACK, COMBINA TION 1 79 Item No. Part No. Description Qty .[...]

 This Page Intentionally Left Blank 80[...]

Rack Control Module Operation and Electrical Schematics 81[...]

82 Rinse Flt L W ash Flt L W ash Flt U Final Rinse Rack Switch Jam Switch T able Limit Stop Start Pause Power DR Level Rinse Flt U Prewash Flt L Prewash Flt U Run H7 H5 H3 H1 H2 H4 H6 AA Prewash DR T ank Rinse T ank Digital Display Rinse Reset DR Pump Pumps Rinse Aid Prewash Fill W ash Fill Final Rinse Run Light DR/Rinse Heat W ash Heat Booster Hea[...]

83 Rack Control Module (RCM) Operation (RCM) H3 (MD-66 Only) (MD-66 Only) The operation of the dishwasher and the RCM is apparent by observing the status of the indicator lights mounted on the RCM and the functioning of the dishwasher . The explanation of the RCM is given below . Rack Control Module (RCM) Operation Input Section Red Indicator Light[...]

84 H1 H2 H4 H6 DR Pump Pumps Rinse Aid Prewash Fill W ash Fill Final Rinse Run Light DR/Rinse Heat W ash Heat Booster Heat Output Section NOT USED NOT USED Rack Control Module Operation Rack Control Module (RCM) Operation Output Section Green Indicator Lights NOTE: Whenever a Green output light is ON it means that the RCM is providing a signal to e[...]

85 Rack Control Module Operation The timer controls the drive motor , wash pump and the MD-66 prewash pump. The timer is internal to the RCM. The PUMPS output indicator light shows the RCM Timer is active. The timer output comes on when the rack switch opens, this turns on the PUMPS output. When the rack switch closes the timer counts for 90-second[...]

86 Rack Control Module (RCM) Indicator Lights Normal Operation Sequence Rack Control Module Operation Rinse Flt L Wash Flt L Wash Flt U Final Rinse Rack Switch Jam Switch T able Limit Stop Start Pause Power DR Level Rinse Flt U Prewash Flt L Prewash Flt U Run H7 H5 H3 H1 H2 H4 H6 AA Prewash DR T ank Rinse T ank Digital Display Rinse Reset DR Pump P[...]

87 Plate 3: 1. Doors closed. 2. POWER light ON. 3. Floats up. 4. T anks full. 5. T ank 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. Plate 4: 1. Doors closed. 2. POWER light ON. 3. Floats up. 4. T anks full. 5. T ank heat enabled. 6. Boo[...]

88 Rack Control Module Operation Plate 6: 1. Doors closed. 2. Power light ON. 3. Floats up. 4. T anks full. 5. T ank heat enabled. 6. Booster heat enabled. 7. Rack has exited the machine/final rinse switch de-activated. 8. Final rinse valve disabled. 9. Rinse aid disabled. 10. RCM timer 90 second interval complete. 1 1. Pumps and drive motor off. P[...]

89 Rack Control Module Operation Door Opened while Dishwasher is In-cycle Plate 7: 1. Door(s) Opened. 2. P AUSE light OFF . 3. POWER light ON. 4. RUN LIGHT OFF . 5. T anks full. 6. T ank heat Disabled. 7. Booster heat disabled. 8. Pumps and drive disabled. 9. RCM timer paused for a maximum of 5 minutes. After 5 minutes, the machine stops and the ST[...]

90 Rack Control Module Operation Jam Switch Activated while Dishwasher is In-cycle Stop Switch Pressed 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. T anks full. 7. T ank heat Disabled. 8. Booster heat disabled. 9. Pumps and drive disabled. 10. RCM timer stopped. 1 [...]

91 Float Operation During Initial Fill Rack Control Module Operation Plate 1 1: 1. Door closed. 2. POWER light ON. 3. T anks empty . ALL FLOA TS DOWN 4. Final rinse enabled. 5. W ash fill enabled. 6. Prewash fill enabled MD-66 Only 7. T ank heat disabled. 8. Booster heat disabled. LOWER FLOA TS UP 9. T ank heat enabled. 10. Booster heat enabled. 1 [...]

92 Front Panel Power Switch T urned Off while Dishwasher is In-cycle Rack Control Module Operation Plate 12: 1. Door closed. 2. POWER Switch OFF . 3. Floats up. 4. T anks full. 5. T ank heat Disabled. 6. Booster heat disabled. 7. Pumps and drive disabled. 8. RUN LIGHT OFF . 9. RCM Status light OFF . 10. All Input and Output lights OFF . Rinse Flt L[...]

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