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 t h a n 2 m m 2 f o r 6 2 8 / 3 8 8 / 2 8 8 / 3 8 6 / 3 1 0 ( 2 2 0 V ~ 5 0 / 6 0 H z ) o r 3 m m 2 f o r 628/626(115V~/60HZ ),and the extended length must not exceed 3m.

Your Haier ULT unit is equipped with a standard three-prong power plug, rated

c u r r e n t f o r 2 0 A f o r 6 2 8 / 6 2 6 ( 1 1 5 V ~ 6 0 H z ) a n d 1 6 A f o r 628/388/288/386/626/310/420(220V~50/60Hz). Be aware that one of the three prongs is for grounding purposes. Removal of the ground prong is strictly prohibited for safety reasons under any circumstances. The electrical power plug should be securely plugged into the power socket. A loose plug in the socket may cause fire.

The power socket intended for your Haier ULT usage must be grounded to avoid electric shock. If the socket does not meet this requirement, the condition must be corrected by a qualified technician before using the ULT unit.

Never use gas lines, water mains, telephone lines or lightening rods as the grounding device for your Haier ULT unit. This type of improper grounding may cause electric shock or other danger.

Never install your ULT in an unprotected area. After a unit is rained on, there is a danger of electric shock.

Installation and maintanence of your Haier ULT should be carried out only after reading this manual. Haier Equipment & Instrument Services can install and validate your unit please call local Haier sales and service center.

Your Haier ULT must be securely installed on a firm floor. A tilted installation may result in equipment falling causing injury and damage.

Your Haier ULT must not be installed in a damp area or an area that can be subject to water spray. A damp or wet unit may cause weakening of insulation which could lead to electric shock.

Never store flammable, explosive or volatile materials in the unit. To avoid potential explosion or fire, do not use any spray near the unit.

Never store corrosive chemicals with acid or alkaline properties in the unit as they can lead to damage to internal components of the unit.

Do not use any hard object to explore any openings or gaps such as air ventilation ports. Accidental contact between the hard object and a moving part may result in electric shock or injury.

If poisonous, radioactive or other harmful materials need to be stored in the unit, the equipment should be located in a safe zone. Improper usage of the equipment with this type of materials may hurt the environment or operator's health.

Optional Accessories

2)Remove the supplementary power supply

Power LED light continues to flash. The recorder works normally. It suggests that the main power supply is sufficient while the backup battery lacks capacity. It is then necessary to replace the battery until the green LED lights up and stops flashing.

3) Changing of Recorder Chart Paper

When changing the chart paper for the recorder, please use the following steps.

a.Locate the button (#3) at the front of the recorder.

b.Press and hold the button (#3) for about one second. The imprinting stylus of the recorder moves to the left side of the chart.

c.When the stylus is completely off the chart, unscrew the center nut for the paper and remove the old chart paper off the recorder. Place a new chart paper on the recorder. Carefully match the day and time line on the chart with the reference mark on the recorder panel (there is a small groove on the front of the recorder as shown in the figure).

d.Place the center nut over the chart paper and tighten it. Press the button (#3) to move the stylus back to the chart to continue the temperature recording.

e.Inspect the contact between the pen and the paper chart. Adjust the arm if necessary to make contact. (Note, do not damage the pen and arm. It might be easier to remove the arm and pen to make a small bending adjustment and then install the pen back on the recorder. Repeat the process until the recorder arm and pen work properly.)

f.The accuracy of the temperature must be checked after changing the chart paper. The procedure is described as follows. Press and hold the button (#3) until the pen moves to the outside of the chart paper. Then press the button (#3) again; the pen should return to the chart paper area. When the pen reaches the outer most circle of the chart paper, it pauses for a moment. If the pen does not match the outer circle of the chart marks, you can use the button (#2) or the button (#1) to move the pen to match the line. This must be done within 5 seconds after the pen pauses. If the calibration is incomplete, repeat the same process until the pen matches the outer circle line.

4)Calibration of Temperature Recorder

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.