Haier DW-86L288, DW-86L386, DW-86L628, DW-86W420, DW-86L388 User Manual

User Manual For Haier DW-86L288/388/628/386/626

DW-86W420

Ultra Low Temperature Storage Freezer

This product is suitable for ultra low temperature storage of products in applications such as clinical, pharmaceutical, scientific research, and epidemic institutions.

Haier Medical and Laboratory Co., Ltd.

Read this user's manual carefully before using the ULT freezer.

Place this manual in a convenient location for future reference.

0070505464

Table of Contents
General Information
Features of the Haier ULT Freezer .........................................................	1
Description of Key Parts and Functions..................................................	2
Safety Precautions..................................................................................	3
Proper Usage..........................................................................................	4
Pre-Installation Information.....................................................................	7
Pre-Start Up Instructions
Installation...............................................................................................	8
Initial Loading..........................................................................................	9
Temperature Adjustment and Setting......................................................	11
Display and Alarms .................................................................................	13
Maintenance
Routine Maintenance..............................................................................	15
Troubleshooting Guide ......................................................................	16
Recycle Rechargeable Battery..........................................................	17
Technical Data
Specifications ....................................................................................	18
Schematic Diagrams, Refrigeration and Wiring Diagram..................	19
Optional Accessories.........................................................................	20
Technical Service ..............................................................................	24

The actual design, color and door pattern of the unit you received may vary as a result of continuous improvements.

Technical Service

Your Haier ULT Freezer has a 3 year warranty on the compressors and 5 years parts and labor on the rest of the unit.

The warranty card should be kept for future service work. Should you need service or to inquire about your freezer, please use the warranty card to contact your local Haier Equipment and Instrument Service center.

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Features of the Haier ULT Freezer

The Haier ULT Freezer is equipped with microprocessor control and a digital temperature display with a range of -10 to -86 . The normal operation temperature range is -50 to -86.

The unit has a number of standard protection functions. They include compressor delay protection, low voltage booster, and high voltage protection.

The refrigeration system for the unit features a balanced cascade technology powered by low-temperature rated speciality compressor.

Advanced LED display on the freezer can display the cabinet temperature, set point, ambient temperature and line voltage. It also allows the user to set the high temperature alarm, low temperature alarm and notifies the user that the unit has developed a failure through the display.

Innovative and integrated design of the door lock and handle provide convenient application.

Note: Technical data published in this manual are nominal. The actual ULT performance may vary slightly due to continuous product improvements.

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Description of Key Parts and Functions

Diagram of parts

Control panel

Door
handle	Inner
	door
Outer door

Side panel for refrigeration compartment

Front protection panel for refrigeration compartment

	Reserved
	window for
	temperature
	recorder	Door	Control
	Lock
		handle	panel

Protection panel

Power switch for battery for refrigeration

compartment

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Optional Accessories

CO2 and LN2 backup cooling system

For installation and instructions for operation, please refer to the user's manual shipped with the system.

Warning Any equipment using CO2 can displace oxygen in the surrounding area. Please verify that there is sufficient ventilation around the workplace. If there is limited ventilation, alternative means to ensure a safer environment must be employed. This may include air quality monitoring and warning devices.

Storage rack and box

If the unit is used to store small samples, storage racks and boxes provide more efficient use of internal space.

Storage box

Racks

Storage box

Model	Storage Rack	Box
DW-86L628	20 (2 inch)	320 (2 inch)
DW-86L388	16 (2 inch)	192 (2 inch)
DW-86L288	12 (2 inch)	144 (2 inch)
DW-86L386	16 (2 inch)	192 (2 inch)
DW-86L626	20 (2 inch)	320 (2 inch)

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Optional Accessories

This recorder has been calibrated at the factory. It retains the temperature accuracy and calibration even when there is a power supply interruption. Should there be a need to recalibrate the recorder, please follow the procedures below.

a)Let the unit run continuously until it reaches a stable condition. The recorder has registered temperature for at least two hours.

b)Place a standard thermocouple in a 100 ml container filled with 10% glycerin solution. Place the container and the temperature recorder sensor in the unit. Do not place the recorder sensor in contact with any liquid.

c)After four hours of soak time at the stable freezer temperature, the container temperature should match the freezer temperature. Then compare the thermocouple reading with the temperature recorder reading. If there is a discrepancy, use the button (#1) or the button (#2) on the recorder to move the pen on the chart to reflect the correct temperature.

Note: The ink pen will operate 5 seconds after the button is released.

Caution: The temperature recorder is preset during production, so resetting of the temperature recorder is not recommended unless absolutely necessary.

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Safety Precautions

This manual and labels attached to the product include important safety precautions required to operate this product. Customers are advised to follow instructions provided to avoid potential damage to product and injury to operators.

Note: Use this product only in the way described in the product literature and this manual. Before using it, verify that this product is suitable for its intended use.

Do not modify system components or use unauthorized parts as this will void the product warranty.

This sign is directly related to operator safety and equipment safety. The contents and instructions that follow the sign must be strictly followed.

This sign refers to prohibited actions. Violation may result in damage to the freezer or compromise the operator's safety.

This label is adhered to a cover that protects a high voltage area to reduce the chance of electric shock. Access to the cover should only be handled by a qualified engineer or technician.

NOTICE!

1.Freezer must be placed at least 200mm away from the wall to allow maximum air circulation.

2.Changing of the Refrigerants should be done according to the Service Manual.

NOTICE!

For the most efficient energy consumption and optimized compressor life,the temperature should be set at the highest temperature suitable for the samples to be stored,normally set at -50 to -80.

When power to the unit is on, switch on the battery charger. When the unit									switch	battery Charge
is not in use switch power off and then switch off the battery charger..

Grounding mark

Wear Cryogloves before opening the door.

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