Moyer Diebel MD-66, MD-44 operation manual Module

Page 90

Rack Control Module (RCM)

Input Section

Output Section

 

 

H5

 

 

H3

 

 

 

 

Jam Switch

Table Limit

 

 

H1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stop Start

Pause Power

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Run Light

 

 

 

L U

 

 

Rack Switch

 

 

 

 

 

 

 

Final Rinse

 

Rinse Flt L

FltU

Prewash Flt

Prewash Flt

Wash Flt L

Wash Flt U Final Rinse

 

 

 

 

 

 

 

 

H2

Level

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wash Fill

 

DR Rinse

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Not Used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Prewash Fill

 

 

 

 

 

 

 

 

Rack Control

 

 

 

 

 

 

 

 

 

 

 

 

Module

 

 

Rinse Aid

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(RCM)

 

 

Pumps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Booster Heat

H4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RCM Status/Jumpers

 

Wash Heat

 

 

 

 

 

 

 

 

 

 

H6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Used

Run

 

 

Prewash

DR Tank

Rinse Tank

 

DR/Rinse Heat

USED

 

 

 

 

Not

 

 

 

 

 

 

 

 

 

 

 

Digital Display

 

 

 

 

NOT

 

 

 

 

 

 

Rinse

 

Reset

AA

 

USED

 

 

 

 

 

 

 

 

USED

 

 

 

 

DR Pump

 

 

 

 

 

 

 

NOT

 

Not Used

NOT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RCM Sections

Refer to the illustration of the Rack Control Module (RCM) to the left and note the three outlined sections. The sections are labeled and the function of each section is explained below:

Input Section — Red lights show the state of the inputs to the RCM.

Output Section — Green lights show the outputs from the RCM to the machine.

RCM Status/Jumpers — The red RUN indicator shows that the RCM is energized. The jumpers set-up the inputs and outputs for various machine models.

RCM Harness Connectors

Note the illustration of the RCM at left and the details from the machine electrical schematic #702260 to the right. These illustrations show the location and connections from the RCM to the dishwasher. The function of the connectors are:

H1 — Control Cabinet Inputs

H2 — Control Cabinet Outputs

H3 — Inputs from Junction Box

H4 — Heat Outputs

RCM Operation

The insert following this page gives a detailed explanation of the inputs, outputs and the status of the indicator lights on the RCM during normal operation of the machine.

Refer to these instructions and the electrical schematic for the operation sequence of the RCM and to aid in the troubleshooting of the dishwasher.

Electrical Schematic 702260 — RCM Inputs

H1

(RCM)

H3

(MD-66 Only)

 

(MD-66 Only)

(RCM)

(RCM)

H2

 

H4

(RCM)

82

Page 89 Page 91
Image 90
Page 89 Page 91
Contents Manual P/N 114725 rev. a National Service Department Business Reply Mail Important Important Revision History Limited Warranty MD-44 and MD-66 Rack Conveyor Dishwashers  Model Descriptions Model MD-44Receiving MD-44 Direction Field Conversion Parts Needed for Conversion Supplied by OthersOn next MD-44 Direction Field Conversion MD-44 Direction Field Conversion 10A 46-1/2 Changing Wire Connections in the Lower Junction Box MD44 Junction BOX Wiring Diagram Utilities Hot Water ConnectionsDrain Connections Ventilation ConnectionsElectrical Connections Machine Electrical Connection PlateGRD Chemical Signal Connections Vent Fan Signal ConnectionRunning Signal Table Limit Switch Connections Curtain Locations Door Safety Switches Pump Intake Screen and Dual Float SwitchScrap Screens Installing the Lower Spray arm Assembly Installing the Upper Spray Arm Assembly Upper Wash Arm AssemblyGuide Pin Upper Wash ArmInstallation Installing the Pawl Bar Installing the Curtains Check list Power Switch Control Panel OperationOperation Do not Overload RacksCleaning RingDe-liming At the End of the DayMaintenance WeeklyCondition Cause Solution Service Replacement Parts Control Panel Decal 36 Control Cabinet 3-HOLE, PW-W-R HOUSING, SwitchCOVER, Control Cabinet PUSHBUTTON, RED SquareCabinet Control Cabinet Extended Vent Cowls Splash SHEILD, Vent 8 Extended Wash Tank Door, Panels and Curtains PANEL, END, Full MT-RACK ROD, CurtainGUIDE, U-CHANNEL, Door 14 329985 BRACKET, Water DiverterWash Tank Heat, Float Switch, and Scrap Screens WASHER, Spacer WASHER, Flat SSTClip 16 107440 THERMOMETER, 8 FT. FlangedWash Tank Junction Box Terminal Block TERMINAL, Single ST 2.5 Gray TERMINAL, SINGLE, ST 2/5 WH WhiteTERMINAL, Double Sttb TERMINAL, SINGLE, ST 2.5 BU BlueMD-66 Prewash Tank, Door and Curtains 11 110854 Float SWITCH, Rack Machine 24 329985 BRACKET, Water DiverterFill Piping 13 102388 BUSHING, Reducing 1/2 NPT X 1/4 NPT Brass NIPPLE, 3/4 NPT X Close Brass12 207082 TUBE, Booster OUTLET, 45 L-R Direction 900837 KIT, Repair Vacuum Breaker 3/4Final Rinse Piping Wash ARM Oring GASKET, Rinse MANIFOLD, 3/4 PipingNOZZLE, VEE-JET #8003 PLUG, E Final Rinse ManifoldMD-66 Prewash Spray Arms Manifold Taper ASSY. Upper Wash HEX Acorn Plain NUT, 1/4-20 SSTRing Standpipe WELDMENT, 1-1/4 OD MD66MD-44, MD-66 Wash Spray Arms Threaded PLUG, Wash ARM Manifold Taper ASSEMBLY, UpperGASKET, HEATER/STANDPIPE 13 333096 Standpipe Weldment 44 MT-RACK118 SWITCH, Reed Aleph MAGNET, Reed SwitchPIN, Idle Pump Switch PLATE, Track Adjustment MD-RACKMD-66 Track Assembly MAGNET, Reed Switch 10 327833 PIN, Idle Pump Switch 12 333082 Track WELDMENT, Front 44 MT-RACKMD-44 Pawl Bar Assembly 17 113714 Ring RETAINING, 3/8 OD Shaft PAWL, CradleCROSSHEAD, Pawl BAR HEX Acorn Plain NUT, 10-32 SSTMD-66 Pawl Bar Assembly 22 333643 CHANNEL, Drive Support PW 66 MT-RACK 167 SHEAVE, Motor AK51 Drive Motor SwitchBRACKET, Motor Switch Mounting PLATE, Drive Motor MountingConveyor Drive Assembly Roller STUD, Crosshead HOUSING, BEARING/SEALROLLER, Crosshead CRANK, Rack ARMPump/Motor Assembly PUMP/MOTOR Assembly Includes Items Pump Seal AssemblyIMPELLER, 3.78 OD, Composite MTL Wash CLAMP, Hose M52 SST Gear Type Rewash Wash Qty Electric Booster Assembly 40F and 70F Rise To Final Rinse Electric Booster Assembly 40F and 70F Rise 1417 CAP, 3/4 NPT SST TEE, 1-1/2 NPT GalvanizedNIPPLE, 1-1/2 NPT X CLOSE, Galvanized PLUG, 3/4 NPT SQ. HD., BrassMD-66 Drain Asssembly Direction Shown 25 114817 Sleeve BEARING, 1/2 DIA. ROD Nylon 12 104165 CLAMP, Hose M40 SST GEAR-TYPE21 111034 Drain BODY, Machined Nipple TOE, 1-1/2 NPT X 6 LG. GalvDish racks RACK, PEG RACK, CombinationThis Intentionally Left Blank Rack Control Module Operation Electrical Schematics Module Rack Control Module RCM Operation Output Section Green Indicator Lights Rack Control Module RCM OperationRCM Status/Jumpers Rack Control Module RCM Indicator Lights Normal Operation SequenceDoors closed Rack switch Door Opened while Dishwasher is In-cycle RUN Light OFF RUN Light OFF JAM Switch OFFRUN Light ON. JAM Switch on RUN Light onALL Floats Down Lower Floats UPUpper Floats UP OFF Lights OFFPage Page Page This Intentionally Left Blank

MD-44, MD-66 specifications

Moyer Diebel has established a reputation as a leader in the commercial dishwashing industry, known for producing technologically advanced and reliable machines. Among their popular models are the MD-66 and MD-44, both designed to meet the needs of high-volume establishments. These machines exemplify Moyer Diebel's commitment to quality and efficiency.

The MD-66 is an energy-efficient dish machine suitable for large restaurants, hotels, and institutional kitchens. With a capacity to wash up to 66 racks per hour, it significantly speeds up the dishwashing process, making it ideal for busy environments. Its unique design features a dual rinse system that ensures consistent and thorough cleaning, while its adjustable wash cycles allow operators to customize the washing intensity based on the type of load – whether heavily soiled pots or delicate glassware.

Equipped with advanced technology, the MD-66 incorporates a microprocessor control system, providing users with real-time feedback on machine performance and diagnostics. This feature helps facilitate preventive maintenance, reducing downtime, and ensuring operational efficiency. The built-in energy efficiency measures contribute to lower utility costs, making this machine not only effective but also environmentally friendly.

Similarly, the MD-44 is designed for smaller establishments that still demand high efficiency. With a capacity of 44 racks per hour, it strikes a balance between compact design and powerful performance. This machine is particularly appealing for cafes, small restaurants, and catering operations. The MD-44 shares many features with the MD-66, including adjustable wash cycles and a robust rinse system, ensuring that even smaller operations receive the same level of cleanliness and hygiene.

Both the MD-66 and MD-44 utilize advanced spray technology, providing optimal water distribution to maximize cleaning effectiveness while minimizing water usage. The user-friendly interfaces on both models simplify operation, ensuring that staff can quickly learn to use the machines without extensive training.

In summary, Moyer Diebel’s MD-66 and MD-44 dishwashing machines combine high capacity, innovative technology, and efficiency to meet the varying needs of different sizes of commercial kitchens. Their robust designs and advanced features make them reliable investments for any foodservice establishment seeking to streamline their dishwashing processes while maintaining the highest standards of cleanliness and performance. These models reflect Moyer Diebel's focus on quality engineering, customer satisfaction, and environmental responsibility.
Top Page Image Contents