The DW-FL90 L medical freezer is a low-temperature refrigeration unit designed for storing medicines and biological materials that require highly stable, ultra-low temperatures. It is used to store blood plasma, medical reagents, and to freeze ice packs while maintaining precise and safe storage conditions.

Features and uses

Storage of sensitive medical materials such as blood plasma and medical reagents.
Freezing ice packs under stable storage conditions.
Suitable for use in hospitals, clinics, blood banks, laboratories in colleges and universities, and disease prevention systems.
Provides an adjustable temperature range from -20 to -40 degrees Celsius inside the cabinet.
Internal layout with three storage drawers to separate different materials and reduce cross-contamination between them.
Door with polyurethane foam insulation to enhance thermal insulation efficiency and maintain stable temperature.
Concealed door handle to reduce the risk of damage during transport and save front space.
Equipped with a door lock and key to control access to stored contents.

Control and safety systems

High-precision control system that allows temperature adjustment within the range of -20 to -40 degrees Celsius.
High-clarity digital display with a reading accuracy of 0.1 degrees Celsius for easy temperature monitoring.
Audio-visual alarm system to monitor abnormal conditions.
Alarm types include: high temperature, low temperature, sensor failure, and door open.
Safety lock with key to protect samples and reduce unauthorized access.

Technical specifications

Temperature range: from -20 to -40 degrees Celsius.
Capacity: 90 liters.
External dimensions (W × D × H): 700 × 669 × 854 mm.
Internal dimensions (W × D × H): 500 × 485 × 532 mm.
Net weight: 54 kg; gross weight: 60 kg.
Number of storage drawers: three drawers.
External material: powder-coated metal body.
Internal material: aluminum plate with spray coating.
Cooling method: direct cooling.
Defrosting method: manual.
Refrigerant type: R290.
Energy consumption: 1.69 kWh per 24 hours.
Power supply: 220–240 V, 50 Hz.
Brand: Meiling.

Installation and ventilation guidelines

Leave a clearance of at least 30 cm at the back and sides when installing the freezer to ensure proper ventilation and efficient heat dissipation.
Avoid installing it in locations where the room temperature exceeds 32 degrees Celsius as much as possible, as this affects its ability to reach the set temperature.
Make sure the door is closed tightly after each use to limit warm air leakage and reduce frost buildup.

Troubleshooting common faults

Temperature not reaching the set value

If the internal temperature of the medical freezer does not reach the set value, such as -40 degrees Celsius, the troubleshooting guide points to several possible causes: