Moyer Diebel 201HTN, 501HTN, 401HTN, 201LT Chemical Dispensing Pump Speed and Tank Fill Adjustments

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Initial Start-up

Chemical Dispensers

All Models

Note:

Chemical Dispensing Pump Speed and Tank Fill Adjustments

 

The chemical dispensing pump speeds are not set at the factory because variations in the type of chemicals supplied by the chemical supplier usually require that the supplier make final the adjustments.

1.Adjustment screws are provided for the dispensing pumps and for the wash tank fill. They are located on the right-side of the dishwasher behind the lower front access panel.

2.Make sure the chemical containers are full and the pick-up tubes are in the proper containers.

3.Turn the dishwasher power switch ON.

The switch will illuminate and the dishwasher will fill with water.

4.The chemical supplier should run a normal dishwasher cycle and test detergent and rinse-aid concentrations according to the chemical supplier's instructions.

Caution:

Excessive pressure to the potentiometers when adjusting can result in bent or broken adjusting screws.

5.Each dispensing pump has a clearly marked adjustment screw. Turn the screw CW to increase the time of the dispensing pump and CCW to reduce the dispensing pump time.

6.The Fill adjustment screw will provide a small change in the tank water level. If a large adjustment is needed, then check the incoming water pressure making sure the fill hose is not kinked. If the above items are okay then the size of the incoming water supply should be evaluated.

7.NOTE:

For Models 501HT, 501HTN,

use detergent and rinse-aid only, a sanitizer is not required.

8.For Model 501LT and 201LT, detergent, rinse-aid and sanitizer are used.

Turning the chemical dispenser adjusting Screws increase or decrease the chemical dispensed.

Proper Water Level in the Wash Tank.

5.25% sodium hypochlorite (chlorine beach) must be used as a sanitizing agent to provide a minimum concentration of 50 ppm in the final rinse. The 50 ppm concentration must be checked using chlorine test strips to make sure that the proper concentration is maintained.

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Contents Undercounter Dishwashers Page Register Your Product Online Product Registration Card Revision History Revision History Blank This Intentionally Left BlankLimited Warranty Limited WarrantyTable of Contents 201-HT, 401-HT, and 501-HT Models Model DescriptionReceiving InstallationL1 L2 L3 N Electrical ConnectionsFor machines built prior to S/N Electrical Connections Booster Heater/Wash Tank Heater Interlock Circuit Water Connections Drain Connections For Models 501HT, 401HT, and 201HT Filling the BoosterInitial Start-up All Models Check ListModels 501HT, 501HTN, 401HT, 401HTN, 201HT, 201HTN Chemical Dispensing PumpsModels 501LT and 201LT Chlorine bleach solutionModels 501LT, and 201LT Chemical DispensersChemical Dispensing Pump Speed and Tank Fill Adjustments 501HT Control Panel Normal Wash CycleModel Rinse Sentry FeatureDishwasher Drain Operation Daily-End of the Day CleaningDaily-End of the Day After Meal Period or Every 8 Hours Maintenance Schedule Condition Cause Solution This Intentionally Left Blank Service Replacement Parts Service Replacement PartsWash Pump/Motor Assy All Models Part Description Qty All Models Wash Pump/Motor AssyWash Tank, Drain, Scrap Screens All Models HEATER, 120VAC 750W All Models Wash Tank, Drain, Scrap ScreensBuilt-in Electric Booster 201HT, 401HT, 501HT Must be ordered with P/N 0512108 Thermostat Prior to S/N W14478201LT, 501LT Base Electrical Components All Models201HT, 401HT, 501HT All S/Ns All Models Base Electrical ComponentsBeginning with S/N W14236 and above Prior to S/N W14236Fill Piping All Models VALVE, Fill 5.0 GPM Breakdown on next All Models Fill PipingFill Valve Assy All Models All Models Fill Valve Assy Fill Chute Assy All Models All Models Fill Chute Assy Sprayarm Assy. All Models Drain Manifold Assy Complete All Models Sprayarm AssyMain Terminal Block, Timer Board All Models Part Description All Models Main Terminal Block, Timer BoardRinse-aid/Sanitizer Chemical Dispensing Pump All Models All Models Rinse-aid/Sanitizer Chemical Dispensing Pump Detergent Chemical Dispensing Pump All Models All Models Detergent Chemical Dispensing Pump Control Panel 201HT/HTN, 201LT, 401HT/HTN, 501LT Wash Rinse201HT/HTN, 201LT, 401HT/HTN, 501LT Control Panel Control Panel with Digital Display 501HT, 501HTN 501HT, 501HTN Control Panel with Digital Display Door Assembly All Models All Models Door Assembly Panel Assembly All Models All Models Panel Assembly Dish Racks Electrical Schematics Electrical SchematicsLow Temp. 201LT, 501LT All S/N’s High Temp.- All S/N’s 201HTN, 401HTN, 501HTN High Temp. 201HT, 401HT Prior to S/N Beginning with S/N 14236 201HT, 401HT High Temp High Temp. 501HT Prior to S/N Single PhaseBeginning with S/N 14236 501HT High Temp Timer Chart All Models Basic Service Basic ServiceDigiital Temperature Display Board 501HT Digital Temperature Display Board0512106 Digital temperature Display coDes Timer Connection Diagram All Models Troubleshooting Guide Timer Board Diagnostic Testing Diagnostic testing for p/n 0712105 solid state timer board

201HTN, 401HT, 201HT, 501LT, 201LT specifications

Moyer Diebel is renowned for its exceptional line of commercial dishwashing machines, and the Moyer Diebel 501HTN, 501HT, 401HTN, 201LT, and 501LT models are among the industry's finest. These machines are designed to enhance efficiency, usability, and sustainability in the fast-paced environments of restaurants, cafeterias, and catering businesses.

The Moyer Diebel 501HTN model boasts high-temperature sanitization capabilities, making it ideal for establishments requiring rigorous hygiene standards. This unit features a compact design yet offers robust performance, incorporating an advanced wash system that ensures thorough cleaning of dishware, utensils, and glassware. The 501HTN is equipped with a powerful pump and a low-water consumption feature, promoting efficient operation while maintaining excellent cleaning results.

Similar to the 501HTN, the Moyer Diebel 501HT offers high-temperature washing but is optimized for slightly different applications. This model caters to establishments with a varied volume of dishware, providing flexibility and adaptability without compromising cleaning power. Its user-friendly interface simplifies operation while a dashboard display allows for easy monitoring of wash cycles and temperatures.

The Moyer Diebel 401HTN is designed for establishments that require a balance of performance and compact size. Although slightly smaller, the 401HTN does not sacrifice cleaning effectiveness. Its energy-efficient design is complemented by a powerful heating element that enables rapid temperature recovery, ensuring that wash cycles remain efficient even during peak hours.

In contrast, the Moyer Diebel 201LT is a low-temperature machine, making it suitable for users who prefer to operate using chemical sanitization. This model features an intuitive design, providing easy access for loading and unloading dishware. The 201LT’s energy-saving mode reduces water and energy consumption while maintaining an effective sanitizing process.

Lastly, the Moyer Diebel 501LT model continues the trend of efficiency and effectiveness but stands out for its durable construction and ease of maintenance. With its low-temperature technology, it caters to establishments focused on efficiency without the need for high-temperature water, making it a cost-effective option in terms of energy use and water consumption.

All these models are underpinned by Moyer Diebel's commitment to quality and innovation, ensuring long-lasting performance and reliability. With user-friendly designs and advanced technologies, these machines collectively enhance kitchen operations, ultimately contributing to a cleaner, more efficient, and sustainable dining experience.
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