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.
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.........................................................
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 .
Optional Accessories Description of Key Parts and Functions Diagram of parts CO2 and LN2 backup cooling system For installation and instructions for operation, please refer to the user's manual shipped with the system. Control panel Door handle Inner door 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.
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.
Optional Accessories Proper Usage The appliance requires 220V~/50Hz for 628/388/288/386/310 or 220V~/50Hz and 220V~/60Hz for 628/626.A regulator with a capacity of 4000W or higher must be installed if the voltage if beyond the rated voltage of ±10%.If the power cord needs to be extended, the extended conductor must have a cross area of equal or greater than 2mm 2 for 628/388/288/386/310(220V~50/60Hz) or 3mm 2 for 628/626(115V~/60HZ ),and the extended length must not exceed 3m.
Optional Accessories Proper Usage 1.Temperature recorder The ULT Freezer is equipped with a 6-inch temperature recorder for the chamber temperature. When the unit is powered up, the recorder starts working. For proper operation of the temperature recorder, please follow the procedures below. 1.Open the recorder door to access the recorder. 2.Plug in the 9 volt battery located on the upper right corner of the recorder. This battery is a standby power. 3.Install a new chart by following the diagram below.
Proper Usage Schematic Diagrams, Refrigeration and Wiring Diagram 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.
Specifications Description Pre-Installation Information Ultra Low Temperature Storage Freezer Model Description DW-86L628/388/288/386/626 DW-86W310/420 Exterior wall material Coated cold rolled steel Interior wall material Coated zine cold rolled steel Inner doors Aluminum framed PS board Shelves Adjustable stainless shelves Porthole for testing 25.
Recycle Rechargeable Battery Installation Environment 1.Ambient temperature: The Haier ULT is designed to operate between 5 to 28 .The maximum ambient temperature is 32 . For best results, the operating ambient should be in between 18 to 25 . If necessary, use an air-conditioning system to achieve the required ambient condition. 2.Relative humidity in environment: At a normal temperature, the maximum relative humidity should be less than 80 percent.
Troubleshooting Guide Should there be any malfunctions in the system, please attempt to answer the following questions before notifying maintenance or calling Haier Equipment & Instrument Service Center Freezer does not start up. Is the power supply normal? Has the main power switch been turned on yet? Is the voltage supply too low? Is a larger amount of load placed into the unit at one time? Freezer's refrigeration ability is reduced.
Initial Loading Routine Maintenance Warning Your Haier ULT unit should be cared for by dedicated personnel. Every 2 to 4 hours, the unit's working status should be inspected and recorded on a daily basis. Should there be a malfunction in the unit, the freezer temperature rises. If the problems cannot be corrected in a short time, please remove the stored samples; move them to another unit that meets the temperature requirement to avoid potential damage of property.
Temperature Adjustment and Setting Display and Alarms Notes: A flashing alarm light cannot be cancelled unless the root cause for the alarm is eliminated. The buzzing alarm can be temporarily silenced for 30 minutes by pressing the alarm silence button. However, if the problem is not fixed, the buzzer alarm will resume after 30 minutes. The freezer is equipped with a rechargeable battery controlled by a power switch. Before operating the freezer, this switch must be turned on.
Display and Alarms Temperature Adjustment and Setting Display and alarm temperature alarm set point can only be set to a value of at least 5 colder than the set point temperature of the unit. It cannot be set to the lowest temperature limit. 5.Setting the security code: When the unit is first setup to operate, the security code to unlock the control is 06. After unlocking the unit, simultaneously push SET and Silence for 5 seconds. The display will show 06. Use the and key to change the security code.