Haier DW-86L388, DW-86L628, DW-86W420, DW-86L626, DW-86L288 Refrigeration diagram, Wiring diagram

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Proper Usage

Do not touch any electrical components or power cord if your hands are damp or wet. Such action might lead to an electric shock.

After restarting your unit after a power outage or shutdown, ensure that all settings are correct. Accidental change in setting may damage the stored products.

Do not place any water container or heavy object on top of the unit. A falling object may injure an operator. If the water spills into the unit, it may damage the insulation causing electric shock.

Do not climb on top of the unit or place any object on top of the unit. Falling equipment may cause injury or property damage.

Hold firmly onto the handle to close the door to avoid pinching your hands.

Do not place any glass container or enclosed container in the freezer. These containers may crack at cold temperatures causing injury to operators.

Do not use bare hands to directly handle the stored products. The cold temperature of the products and the interior wall may cause the skin to burn.

During any repair operation, gloves should be worn to avoid injury by sharp edges or corners.

The air filter for the condenser should be cleaned regularly. Freezer temperature could be compromised.

If a unit is out of service for a long period of time, make sure the power cord is unplugged. Deteriorated insulation on the power cord may lead to electric shock or fire.

When a CO2 backup system is activated, the ventilation in the freezer room must be monitored. Increased CO2 concentration in the air can be harmful and even fatal.

Do not tilt the unit more than 45 degrees when moving the unit.

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Schematic Diagrams, Refrigeration and Wiring Diagram

Refrigeration diagram

Filter dryer

Capillary tube

Filter dryer

Evaporator

Cascade condenser,

Capillary tube

Condenser

Suction

Accumulator

High

stage compressor

 

Low

stage compressor

 

 

Pressure swi

tch

Oil separator

wiring diagram

Note: The way of connection the transformer pin: for 120V: connect 1 with 5, connect 2 with 6; for 240V: connect 2 with 5.

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Contents DW-86W420 Ultra Low Temperature Storage Freezer Table of Contents Technical Service Features of the Haier ULT FreezerOptional Accessories CO2 and LN2 backup cooling systemDiagram of parts Description of Key Parts and FunctionsSafety Precautions Proper Usage Replacement of Recorder Battery Temperature recorderPower supply Refrigeration diagram Wiring diagramTechnical data Packing list SpecificationsPre-Installation Information Installation Recycle Rechargeable BatteryLocation for installation EnvironmentInitial Loading Troubleshooting GuideInstallation Routine Maintenance Operation after a power outageDisplay and Alarms Buzzer alarm resumption after cancellationRemote alarm terminals Temperature Adjustment and SettingDisplay and alarm Alarm Conditions

DW-86L386, DW-86L288, DW-86L626, DW-86L388, DW-86W420 specifications

Haier's line of biomedical freezers, including the DW-86L628, DW-86W420, DW-86L388, DW-86L626, and DW-86L386, showcases the company's commitment to innovation, reliability, and advanced technology in preserving sensitive biological materials. These models are designed to meet the needs of laboratories, hospitals, and research institutions, providing optimal storage solutions for a variety of critical applications.

The DW-86L628 is recognized for its impressive capacity of 628 liters, making it ideal for facilities that require large storage volumes. It features a temperature range of -10°C to -86°C, ensuring that vaccines, biological samples, and pharmaceuticals are stored under precise conditions. With a powerful refrigeration system and an efficient insulation design, this model ensures rapid cooling and maintains consistent temperatures.

The DW-86W420, on the other hand, balances capacity with energy efficiency. This model offers a slightly smaller design, suitable for environments where space is at a premium. It includes a user-friendly digital display that allows for easy monitoring of temperature and system performance, while also providing real-time alerts for any deviations outside of the set parameters. Additionally, it is equipped with a patented eco-friendly refrigerant, reducing the environmental impact while maintaining high performance.

In the DW-86L388, Haier emphasizes robust safety features. This freezer is engineered with a dual-lock system to prevent unauthorized access, alongside an advanced alarm system that notifies users in the event of power failures or temperature fluctuations. This level of security is crucial for laboratories that manage valuable specimens.

The DW-86L626 is tailored for versatility and comes with adjustable shelving and organization options, allowing users to configure the interior to suit their storage needs. Its peak temperature recovery time is remarkably quick, ensuring that samples remain secure even after door openings.

Finally, the DW-86L386 combines compact design with advanced technology. It is aimed at users with limited space, yet it does not compromise on storage efficiency. The unit is equipped with energy-saving modes, reducing operational costs while ensuring optimal performance.

In summary, Haier's DW-86 biomedical freezer models stand out for their high performance, reliability, and thoughtful design tailored for the rigorous demands of biomedical storage. With an emphasis on safety, energy efficiency, and user-friendly features, these freezers are a smart choice for any facility focused on preserving vital biological materials.