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Haier DW-86W420 - User Manual

Haier DW-86W420
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Read this user's manual carefully before using the ULT freezer.
Place this manual in a convenient location for future reference.
Haier Medical and Laboratory Co., Ltd.
This product is suitable for ultra low temperature storage of products in
applications such as clinical, pharmaceutical, scientific research, and
epidemic institutions.
User Manual For Haier DW-86L288/388/628/386/626
Ultra Low Temperature Storage Freezer
DW-86W420

Other manuals for Haier DW-86W420

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Summary

Features of the Haier ULT Freezer

Technical Service

Information on compressor and parts warranty, contact for service.

Description of Key Parts and Functions

Diagram of parts

Visual identification of major components like control panel, doors, handles.

Optional Accessories

CO₂ and LN2 Backup Cooling System

Details on backup cooling systems and safety warnings.

Safety Precautions

General Safety Warnings

Crucial safety instructions, prohibited actions, and high voltage area warnings.

Proper Usage

Electrical and Grounding Requirements

Proper voltage, current, plug usage, and mandatory grounding for safety.

Optional Accessories

Temperature Recorder and Power Supply

Details on the temperature recorder, its operation, and power supply options.

Proper Usage

Safe Operation Practices

Precautions for gas leaks, repairs, water, dismantling, power outages, and unplugging.

Proper Usage

Handling and Environmental Safety

Safety advice on handling, avoiding damage, and environmental considerations.

Schematic Diagrams, Refrigeration and Wiring Diagram

Refrigeration and Wiring Diagrams

Visual representations of the freezer's refrigeration system and electrical connections.

Specifications

Technical Data and Packing List

Detailed specifications, technical data, and packing list for various models.

Pre-Installation Information

Storage, Cleaning, and Setup Guidelines

Advice on unit storage, temperature stability, cleaning, and initial setup.

Installation

Environmental and Location Requirements

Guidelines for optimal operating environment and installation site selection.

Recycle Rechargeable Battery

Battery Location, Removal, and Caution

Instructions on locating, removing, and handling the rechargeable battery with polarity caution.

Troubleshooting Guide

Common Issues and Solutions

Addresses common problems like unit not starting, reduced refrigeration, and noise.

Initial Loading

Setup and Pre-Operation Checks

Steps for unpacking, leveling, grounding, and initial functional testing before sample loading.

Initial Loading

Loading Samples and Operational Cautions

Guidelines for loading samples, batching, and important operational cautions to prevent damage.

Routine Maintenance

Cleaning, Filter, and Defrosting Procedures

Instructions for monthly cleaning, condenser filter maintenance, and interior defrosting.

Display and Alarms

Alarm System Overview and Remote Terminals

Explanation of alarm functions, silencing, remote alarms, and terminal output.

Temperature Adjustment and Setting

Setting Temperature and Alarm Limits

Procedure to unlock control, set temperature, and configure high/low temperature alarm limits.

Temperature Adjustment and Setting

Security Code and Startup Delay Settings

Instructions for setting security codes and adjusting compressor startup delay for power surges.

Display and Alarms

Indicator Lights and Alarm Conditions Table

Description of indicator lights and a detailed table of alarm conditions and their triggers.

Summary

Features of the Haier ULT Freezer

Technical Service

Information on compressor and parts warranty, contact for service.

Description of Key Parts and Functions

Diagram of parts

Visual identification of major components like control panel, doors, handles.

Optional Accessories

CO₂ and LN2 Backup Cooling System

Details on backup cooling systems and safety warnings.

Safety Precautions

General Safety Warnings

Crucial safety instructions, prohibited actions, and high voltage area warnings.

Proper Usage

Electrical and Grounding Requirements

Proper voltage, current, plug usage, and mandatory grounding for safety.

Optional Accessories

Temperature Recorder and Power Supply

Details on the temperature recorder, its operation, and power supply options.

Proper Usage

Safe Operation Practices

Precautions for gas leaks, repairs, water, dismantling, power outages, and unplugging.

Proper Usage

Handling and Environmental Safety

Safety advice on handling, avoiding damage, and environmental considerations.

Schematic Diagrams, Refrigeration and Wiring Diagram

Refrigeration and Wiring Diagrams

Visual representations of the freezer's refrigeration system and electrical connections.

Specifications

Technical Data and Packing List

Detailed specifications, technical data, and packing list for various models.

Pre-Installation Information

Storage, Cleaning, and Setup Guidelines

Advice on unit storage, temperature stability, cleaning, and initial setup.

Installation

Environmental and Location Requirements

Guidelines for optimal operating environment and installation site selection.

Recycle Rechargeable Battery

Battery Location, Removal, and Caution

Instructions on locating, removing, and handling the rechargeable battery with polarity caution.

Troubleshooting Guide

Common Issues and Solutions

Addresses common problems like unit not starting, reduced refrigeration, and noise.

Initial Loading

Setup and Pre-Operation Checks

Steps for unpacking, leveling, grounding, and initial functional testing before sample loading.

Initial Loading

Loading Samples and Operational Cautions

Guidelines for loading samples, batching, and important operational cautions to prevent damage.

Routine Maintenance

Cleaning, Filter, and Defrosting Procedures

Instructions for monthly cleaning, condenser filter maintenance, and interior defrosting.

Display and Alarms

Alarm System Overview and Remote Terminals

Explanation of alarm functions, silencing, remote alarms, and terminal output.

Temperature Adjustment and Setting

Setting Temperature and Alarm Limits

Procedure to unlock control, set temperature, and configure high/low temperature alarm limits.

Temperature Adjustment and Setting

Security Code and Startup Delay Settings

Instructions for setting security codes and adjusting compressor startup delay for power surges.

Display and Alarms

Indicator Lights and Alarm Conditions Table

Description of indicator lights and a detailed table of alarm conditions and their triggers.

Haier DW-86W420 Specifications

General IconGeneral
Power Supply220V/50Hz
DefrostingManual
DisplayLED
ControllerMicroprocessor-based
TypeUltra-low Temperature Freezer
Capacity420 liters
Temperature Range-40°C to -86°C

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