Haier DW-86L288, DW-86L386, DW-86L628, DW-86W420, DW-86L388 User Manual
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007050546
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.
4
Table of Contents
G
eneral 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
Features of the Haier ULT Freezer
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.
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.
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Note: Technical data published in this manual are nominal. The actual
ULT performance may vary slightly due to continuous product
improvements.
1
Description of Key Parts and Functions
Optional Accessories
Diagram of parts
Control
panel
Door
handle
Outer door
Side panel
for
refrigeration
compartment
Front protection
panel for
refrigeration
compartment
Reserved
window for
temperature
recorder
Lock
Door
handle
Control
panel
Inner
door
CO and LN2 backup cooling system
2
For installation and instructions for operation, please refer to the user's manual shipped with the
system.
Warning Any equipment using CO 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.
2
Storage rack and box
If the unit is used to store small samples, storage racks and boxes provide more efficient use of
internal space.
Racks
Storage box
Model
DW-86L628
DW-86L388
DW-86L288
DW-86L386
DW-86L626
Storage Rack
20 (2 inch)
16 (2 inch)
12 (2 inch)
16 (2 inch)
20 (2 inch)
Storage box
Box
320 (2 inch)
192 (2 inch)
144 (2 inch)
192 (2 inch)
320 (2 inch)
Power switch for battery
Protection panel
for refrigeration
compartment
2
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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.
Place a standard thermocouple in a 100 ml container filled with 10% glycerin solution.
b)
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.
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.
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.
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 .
Charge
battery
When power to the unit is on, switch on the battery charger. When the unit
is not in use switch power off and then switch off the battery charger..
Grounding mark
switch
22
Wear Cryogloves before the door.opening
3
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