Moyer Diebel MD-66 Rack Control Module RCM Operation, Output Section Green Indicator Lights

Page 92

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 enable its cor- responding circuit; however, the actual operation of the circuit may depend on other associated controls.

Run Light - ON when the start switch on the dishwasher front control panel is pressed. The run light on the dishwasher front panel is also comes on.

SUSPENDED - In the event that the wash fill or prewash fill are on for OPERATION more for more than 10 min., all inputs & outputs OFF.

THE RUN LIGHT WILL FLASH ONCE PER SECOND. THE DISHWASHER POWER SWITCH MUST BE TURNED OFF AND ON TO CLEAR THIS CONDITION.

Final - ON whenever the final rinse switch is activated and the

Rinse pumps are on or if the fill valve is ON when the machine is filling. Jam Switch, Table Limit and Pause output lights must be ON.

Wash Fill - If the Wash Flt L light is off, then the Wash Fill Green light is ON until the Wash Flt L and Wash Flt U red input lights come on. The Pause input light must be on. The Green Wash Fill light will stay ON for a maximum of 10 minutes.

Prewash - If the Prewash Flt L red input light is off, then the Prewash Fill

Fill

Green light is ON until the PW Flt L and PW Flt U red input

MD-66

lights come on. The Pause input light must be on. The Green

Only

Prewash Fill light will stay ON for a maximum of 10 minutes.

Rinse Aid - ON when the final rinse switch is operated. OFF when the Jam Switch or Table Limit red output lights are OFF or if the Stop switch on the control cabinet is pressed. OFF when the RCM Timer has timed out during normal cycle.

Pumps - Output is controlled by the RCM Timer. ON when the rack switch is activated. OFF when the Jam Switch or Table Limit red output light are OFF or if the Stop switch on the control cabinet is pressed. OFF when the RCM Timer has timed out during normal cycle.

Booster - Output to Booster Heat Contactor. ON if the Wash Flt L

Heat and Pause red input lights are on. OFF if Wash Flt L or Pause lights are off.

Wash - Output to Wash Heat Contactor. ON if the Wash Flt L

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

H1

Run Light

Final Rinse

H2 Wash Fill

Prewash Fill

Rinse Aid

Pumps

 

 

 

 

 

 

 

 

 

 

 

 

H4

 

 

 

 

 

 

 

 

 

 

 

 

Booster Heat

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wash Heat

H6

DR/Rinse Heat

USED

NOT

 

 

DR Pump

 

USED

NOT

 

84

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Page 91 Page 93
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 Running Signal Table Limit Switch Connections Chemical Signal ConnectionsVent Fan Signal Connection 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 HOUSING, Switch COVER, Control CabinetDecal 36 Control Cabinet 3-HOLE, PW-W-R PUSHBUTTON, RED SquareCabinet Control Cabinet Extended Vent Cowls Splash SHEILD, Vent 8 Extended Wash Tank Door, Panels and Curtains ROD, Curtain GUIDE, U-CHANNEL, DoorPANEL, END, Full MT-RACK 14 329985 BRACKET, Water DiverterWash Tank Heat, Float Switch, and Scrap Screens WASHER, Flat SST ClipWASHER, Spacer 16 107440 THERMOMETER, 8 FT. FlangedWash Tank Junction Box Terminal Block TERMINAL, SINGLE, ST 2/5 WH White TERMINAL, Double SttbTERMINAL, Single ST 2.5 Gray 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 NIPPLE, 3/4 NPT X Close Brass 12 207082 TUBE, Booster OUTLET, 45 L-R Direction13 102388 BUSHING, Reducing 1/2 NPT X 1/4 NPT Brass 900837 KIT, Repair Vacuum Breaker 3/4Final Rinse Piping GASKET, Rinse MANIFOLD, 3/4 Piping NOZZLE, VEE-JET #8003Wash ARM Oring PLUG, E Final Rinse ManifoldMD-66 Prewash Spray Arms HEX Acorn Plain NUT, 1/4-20 SST RingManifold Taper ASSY. Upper Wash Standpipe WELDMENT, 1-1/4 OD MD66MD-44, MD-66 Wash Spray Arms Manifold Taper ASSEMBLY, Upper GASKET, HEATER/STANDPIPEThreaded PLUG, Wash ARM 13 333096 Standpipe Weldment 44 MT-RACK118 MAGNET, Reed Switch PIN, Idle Pump SwitchSWITCH, Reed Aleph 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 PAWL, Cradle CROSSHEAD, Pawl BAR17 113714 Ring RETAINING, 3/8 OD Shaft HEX Acorn Plain NUT, 10-32 SSTMD-66 Pawl Bar Assembly 22 333643 CHANNEL, Drive Support PW 66 MT-RACK 167 Drive Motor Switch BRACKET, Motor Switch MountingSHEAVE, Motor AK51 PLATE, Drive Motor MountingConveyor Drive Assembly HOUSING, BEARING/SEAL ROLLER, CrossheadRoller STUD, Crosshead CRANK, Rack ARMPump/Motor Assembly IMPELLER, 3.78 OD, Composite MTL PUMP/MOTOR Assembly Includes ItemsPump Seal Assembly 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 TEE, 1-1/2 NPT Galvanized NIPPLE, 1-1/2 NPT X CLOSE, GalvanizedCAP, 3/4 NPT SST PLUG, 3/4 NPT SQ. HD., BrassMD-66 Drain Asssembly Direction Shown 12 104165 CLAMP, Hose M40 SST GEAR-TYPE 21 111034 Drain BODY, Machined25 114817 Sleeve BEARING, 1/2 DIA. ROD Nylon 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 JAM Switch OFF RUN Light ON. JAM Switch onRUN Light OFF RUN Light onUpper Floats UP ALL Floats DownLower 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.
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