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Delfield 6051-S - User Manual

Delfield 6051-S
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Part Number: 9294254 06/15
6000XL & 6100XL Series
Reach Ins
Original Instructions
Installation, Operation and Maintenance Manual
This manual is updated as new information and models are released. Visit our website for the latest manual.
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Summary

Important Warning And Safety Information

Receiving And Inspecting Equipment

Product Information

Serial Number Information

Location and importance of the serial number tag for parts and service.

Warranty Information

How to register, verify, and download warranty information online.

Regulatory Certifications

Lists the certifying bodies for the models, such as NSF and UL.

Specifications

Installation

Location

Guidelines for unit placement, clearance, and floor support for optimal refrigeration.

Leveling

Importance of leveling for door alignment, strain, and shelf stability.

Stabilizing

Recommendations for securing units on casters and waiting period after tilting.

Electrical Connection

Connecting the unit to the correct power source and circuit.

Power Switch

Location and function of the power disconnect switch for unit operation.

Door Reversal Procedures

Standard Edge-Mount Hinge

Step-by-step instructions for reversing doors on standard hinges.

Models With Re-Hinging Option

Specific steps for door reversal on models equipped with re-hinging option.

Leg & Caster Installation

Electronic Temperature Control Operation

Temperature Alarm

How temperature alarms function and factory set points for refrigerators and freezers.

Refrigerator Temperature Control

Location and adjustment of the temperature control knob for refrigerators.

Freezer Temperature Control

Location and adjustment of the temperature control knob for freezers.

Unit Power Switch

Function of the power switch and its effect on the unit's operation.

Energy Saver Switch

How the energy saver switch controls door perimeter heat for condensation.

Refrigeration & Defrost Cycle

How the control cycles components to maintain temperature and initiate defrost.

Freezer Automatic Defrost

Freezer Manual Defrost

Electronic Temperature Control Error Codes

E-1 Box Temperature Sensor Error

Diagnosis and fix for error code E-1 related to the box temperature sensor.

E-2 Coil Temperature Sensor Error

Diagnosis and fix for error code E-2 related to the coil temperature sensor.

E-6 Control Potentiometer Error

Diagnosis and fix for error code E-6 indicating a defective control potentiometer.

E-13 Communication Error

Diagnosis and fix for error code E-13 related to controller-display communication.

Service Alert

Evaporator Fan Matrix

Maintenance

Stainless Steel Care and Cleaning

Guidelines for cleaning and protecting stainless steel surfaces.

Condenser Coil Cleaning

Recommended frequency and methods for cleaning the condenser coil.

Gasket Maintenance

How to clean and maintain door gaskets for proper sealing.

Doors;Hinges Maintenance

Drain Maintenance

Fluorescent Light Bulb Replacement

Summary

Important Warning And Safety Information

Receiving And Inspecting Equipment

Product Information

Serial Number Information

Location and importance of the serial number tag for parts and service.

Warranty Information

How to register, verify, and download warranty information online.

Regulatory Certifications

Lists the certifying bodies for the models, such as NSF and UL.

Specifications

Installation

Location

Guidelines for unit placement, clearance, and floor support for optimal refrigeration.

Leveling

Importance of leveling for door alignment, strain, and shelf stability.

Stabilizing

Recommendations for securing units on casters and waiting period after tilting.

Electrical Connection

Connecting the unit to the correct power source and circuit.

Power Switch

Location and function of the power disconnect switch for unit operation.

Door Reversal Procedures

Standard Edge-Mount Hinge

Step-by-step instructions for reversing doors on standard hinges.

Models With Re-Hinging Option

Specific steps for door reversal on models equipped with re-hinging option.

Leg & Caster Installation

Electronic Temperature Control Operation

Temperature Alarm

How temperature alarms function and factory set points for refrigerators and freezers.

Refrigerator Temperature Control

Location and adjustment of the temperature control knob for refrigerators.

Freezer Temperature Control

Location and adjustment of the temperature control knob for freezers.

Unit Power Switch

Function of the power switch and its effect on the unit's operation.

Energy Saver Switch

How the energy saver switch controls door perimeter heat for condensation.

Refrigeration & Defrost Cycle

How the control cycles components to maintain temperature and initiate defrost.

Freezer Automatic Defrost

Freezer Manual Defrost

Electronic Temperature Control Error Codes

E-1 Box Temperature Sensor Error

Diagnosis and fix for error code E-1 related to the box temperature sensor.

E-2 Coil Temperature Sensor Error

Diagnosis and fix for error code E-2 related to the coil temperature sensor.

E-6 Control Potentiometer Error

Diagnosis and fix for error code E-6 indicating a defective control potentiometer.

E-13 Communication Error

Diagnosis and fix for error code E-13 related to controller-display communication.

Service Alert

Evaporator Fan Matrix

Maintenance

Stainless Steel Care and Cleaning

Guidelines for cleaning and protecting stainless steel surfaces.

Condenser Coil Cleaning

Recommended frequency and methods for cleaning the condenser coil.

Gasket Maintenance

How to clean and maintain door gaskets for proper sealing.

Doors;Hinges Maintenance

Drain Maintenance

Fluorescent Light Bulb Replacement

Overview

The Delfield 6000XL & 6100XL Series Reach-In units are commercial refrigeration and freezer appliances designed for indoor use, offering reliable temperature control and food storage. These units are intended for professional kitchen environments, emphasizing proper installation, operation, and maintenance to ensure optimal performance and longevity.

Function Description

The primary function of the Delfield 6000XL & 6100XL Series is to provide consistent and controlled temperature environments for storing food products. These units utilize an electronic temperature control system that continuously monitors both the box temperature and the evaporator coil temperature. This system ensures that the internal temperature remains within the desired range, preventing spoilage and maintaining food quality.

The electronic temperature control also features a self-check mechanism. If an error occurs, the digital display will switch from a temperature readout to an error code (e.g., E1, E2, E6, E13). Even with an error, the refrigeration and control system is designed to continue functioning, though possibly not at optimal performance. In such cases, contacting Delfield Service is recommended.

For freezers, the control system includes an initial defrost cycle upon start-up or reconnection of power, during which the display will read "DEF." This ensures the evaporator coil is clear of frost before the freezing cycle begins. Refrigerators also have a defrost cycle that activates as needed to clear accumulated frost, with the display showing "dEF" during this period.

The units are equipped with a power disconnect switch and an energy saver switch. The power switch allows for complete disconnection of the unit, while the energy saver switch controls the amount of heat applied to the door perimeter. This helps manage condensation and energy consumption.

Usage Features

Installation and Placement: The units are designed for indoor use only and require a floor strong enough to support their weight, which can be up to 1500 pounds when fully loaded. Proper air circulation is crucial both inside and outside the cabinet for efficient refrigeration.

  • Inside Cabinet: To ensure proper airflow, the refrigerator should not be packed too full. Refrigerated air is discharged at the top rear and flows to the bottom. Obstructions to this airflow can lead to evaporator coil freeze-ups, temperature loss, or water overflow. Molded ribs and a rear turn-up on shelves help prevent items from blocking airflow, but users should still avoid placing large boxes or tall stacks of product at the far rear or bottom of the cabinet. A return air diffuser along the top front of the cabinet interior also requires clear circulation.
  • Outside Cabinet: The unit needs ample air access. It should be kept away from hot corners, stoves, and ovens. A minimum clearance of 2 inches from any wall and at least 12 inches of clear space above the unit is recommended. Glass door units should not be exposed to direct sunlight, as this can cause the ABS liner to fade, become brittle, and significantly reduce refrigeration efficiency.

Leveling and Stability: A level cabinet is essential for proper door alignment, reduced strain on the cabinet, and stable contents. Units with legs have adjustable bullet feet for leveling. Units with casters require a level floor, as no adjustments are available. For units on casters, the front wheels must be locked during use to ensure stability. If the unit needs to be laid on its side or back for any reason, it should remain upright for at least 24 hours before start-up to allow compressor oil to return to the sump, preventing compressor failure and unit damage.

Electrical Connection: Users should refer to the amperage data on the specifications page, the serial tag, and local electrical codes to ensure the unit is connected to the correct power source. A protected circuit with the appropriate voltage and amperage is required for either line cord connection or permanent wiring.

Temperature Control: The electronic temperature control knob allows users to adjust the internal temperature. For colder temperatures, the knob should be turned clockwise; for warmer temperatures, counter-clockwise. Turning the knob fully counter-clockwise will turn off the refrigeration system. Adjustments should be made in small increments (no more than one dial number at a time), allowing 8 hours for temperature stabilization before further adjustments.

Power and Energy Saver Switches: The power disconnect switch must be in the "on" position for the unit to operate. For freezers, turning the switch off and then back on will initiate a defrost cycle. The energy saver switch, located next to the thermostat knob, can be toggled between "ON" (least heat applied to door perimeter) and "OFF" (increased heat, visible as a red portion on the rocker switch) to manage condensation.

Defrost Cycles:

  • Refrigerators: The digital thermostat displays box temperature during normal operation. The temperature control cycles the compressor, evaporator, and condenser fans to maintain the set temperature. During defrost, the display shows "dEF" until the evaporator returns to normal cooling temperatures (up to 30 minutes).
  • Freezers: The digital thermostat displays box temperature during normal operation. The control cycles the compressor, evaporator, and condenser fans. An automatic defrost cycle activates after 4 hours of compressor running time or if the evaporator coil temperature drops below -30°F (-34°C). A manual defrost can be initiated by unplugging the unit for a few seconds and plugging it back in, causing the control to re-initialize and enter a defrost cycle. During defrost, the display shows "dEF" for a minimum of 8 minutes and a maximum of 30 minutes. After defrost, the evaporator fan motor will remain off for 2 minutes after the compressor and condenser fan motor begin operating, and the display will continue to show "dEF" until normal freezing temperatures are reached (up to 30 minutes).

Door Reversal Procedures: Instructions are provided for reversing doors on both standard edge-mount hinge models and models ordered with a re-hinging option. This involves carefully removing hinges, rotating components, drilling new holes (if applicable), and reattaching the door to ensure proper closure and gasket seal.

Maintenance Features

General Cleaning:

  • Interior and Exterior: The Delrite® ABS interior and exterior can be cleaned with soap and warm water. For more stubborn dirt, ammonia and water or a non-abrasive liquid cleaner can be used. When cleaning stainless steel exteriors, always rub with the "grain" to avoid marring the finish.
  • Prohibited Cleaners: Never use abrasive cleaners, steel pads, wire brushes, or scrapers, as these can scratch stainless steel, plastic, and damage breaker strips and gaskets. Acid-based cleaning solutions should also be avoided, especially on stainless steel, as many food products have acidic content that can deteriorate the finish. Chlorides, commonly found in hard water, salts, and household/industrial cleaners, can damage the protective film of stainless steel. If cleaners containing chlorides are used, thorough rinsing and drying are essential.
  • Water Jet Cleaning: Do not clean with a water jet, as this can damage the unit and void the warranty.

Condenser Coil Cleaning: Regular cleaning of the condenser coil is crucial for proper refrigeration performance. It is recommended every 90 days, or every 30 days if there is significant debris, dust, or grease accumulation.

  • Light Dust/Debris: Can be cleaned with a simple brush, vacuum cleaner, or compressed air.
  • Heavy Grease: May require de-greasing agents specifically for condenser coils, followed by compressed air.
  • Warning: Never use a high-pressure water wash, as this can damage electrical components near the condenser coil.
  • Importance: Failure to maintain a clean condenser coil can lead to high temperatures, excessive run times, continuous operation, compressor failures, and will void warranties related to the compressor.

Gasket Maintenance: Gaskets require regular cleaning with warm soapy water to prevent mold and mildew buildup and maintain elasticity. Full-strength cleaning products should be avoided as they can make gaskets brittle and prevent proper seals. Sharp tools or knives should not be used to scrape or clean gaskets, as this can tear them. Gaskets are "Dart" style and can be easily replaced by pulling them out of the groove in the door and pressing new ones into place.

Doors/Hinges Maintenance: Over time and with heavy use, door hinges may become loose, causing the door to sag. It may be necessary to tighten the screws that mount the hinge brackets to the frame. Loose or sagging doors can damage both the doors and hinges, potentially requiring qualified service agents.

Drain Maintenance: Each unit has an internal drain that removes condensation from the evaporator coil to an external condensate evaporator pan. Users should regularly check that the drain tube is connected from the evaporator housing to the condensate evaporator drain pan. If excessive water accumulates inside the unit or underneath it, the drain tube may be loose, disconnected, or blocked. The unit's leveling is important for proper drainage. All drain lines should be kept free of obstructions, especially food products, to prevent water backup and overflow.

Fluorescent Light Bulb Replacement: Delfield recommends that fluorescent light bulbs be recycled rather than disposed of.

Delfield 6051-S Specifications

General IconGeneral
CategoryRefrigerator
Model Number6051-S
BrandDelfield
Number of Sections1
Door TypeSolid
Exterior MaterialStainless Steel
Interior MaterialAluminum
RefrigerantR290
Voltage115V
Shelves3
Door SwingRight

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