Haier DW-86W100 Ultra Low Temperature Freezer

Overview

The Haier DW-86W100 is a compact, high-efficiency ultra low temperature (ULT) freezer engineered for reliable long-term cryopreservation of biological samples—including primary cells, stem cell lines, plasma, serum, DNA/RNA extracts, and tissue specimens—in research laboratories, biobanks, clinical diagnostics facilities, and pharmaceutical QC environments. Operating within a stable temperature range of –40 °C to –86 °C at ambient conditions up to 32 °C, the unit employs a dual-compressor direct-cooling architecture with mixed HFC-free refrigerants to achieve rapid pull-down and maintain thermal uniformity (<4 °C) across its 100 L internal chamber. Its卧式 (horizontal) configuration minimizes floor footprint while optimizing ergonomic access—critical in space-constrained cleanrooms or shared core facilities. The cabinet integrates vacuum-insulated panels (VIPs) and environmentally compliant polyurethane foam, delivering superior thermal resistance without ozone-depleting substances or high-global-warming-potential (GWP) agents.

Key Features

• Dual-Compressor Redundancy: Two independent hermetic reciprocating compressors (253 W each) enable load-sharing operation, extended service life, and improved reliability during continuous 24/7 operation.
• Acoustic Optimization: Vibration-dampened refrigeration circuitry and reinforced cabinetry reduce operational noise to <49 dB(A), meeting ISO 7779 requirements for quiet laboratory environments.
• Intelligent Microprocessor Control: Digital PID-based temperature regulation with 1 °C resolution, real-time LED display, and password-protected interface ensures traceable, tamper-resistant setpoint management.
• Multi-Layer Alarm Architecture: Comprehensive event detection includes high/low temperature deviation, power interruption, voltage fluctuation (>±10%), sensor failure, ambient over-temperature, clogged air filter, low backup battery, and startup delay protection—all configurable via front-panel menu.
• Medical-Grade Construction: Internally lined with epoxy-coated galvanized steel; exterior finished with corrosion-resistant pre-painted steel; door gaskets designed for low-permeability sealing under prolonged sub-zero cycling.
• Modular Service Design: Separated refrigeration and electronic control modules simplify field diagnostics, component replacement, and preventive maintenance—reducing mean time to repair (MTTR).

Sample Compatibility & Compliance

The DW-86W100 accommodates standard cryogenic storage configurations: up to 72 two-inch cryoboxes mounted on removable, label-compatible racks. Its interior geometry (470 × 450 × 480 mm) supports both manual and semi-automated retrieval workflows. As a registered Class II medical device in China (NMPA registration number available upon request), it complies with GB/T 20154–2014 (Technical Requirements for Ultra-Low Temperature Freezers) and meets essential safety and EMC criteria per CCC (GB 4706.1, GB 4706.13) and CE directives (2014/30/EU, 2014/35/EU). While not certified to ISO 13485 or FDA 21 CFR Part 11 out-of-the-box, its alarm logs, password protection, and optional USB data logger (sold separately) support alignment with GLP/GMP documentation practices when integrated into validated lab infrastructure.

Software & Data Management

The unit operates autonomously without proprietary software dependency. All operational parameters—including setpoint, real-time chamber temperature, alarm history (timestamped), and system status—are accessible via the front-panel interface. Optional accessories include a USB-enabled temperature data logger (recording interval configurable from 1 to 60 minutes) and analog/digital output modules for integration with building management systems (BMS) or centralized environmental monitoring platforms. No cloud connectivity or remote web interface is embedded; however, the “remote alarm” function provides dry-contact relay outputs (NO/NC) compatible with third-party alarm consolidation servers or facility-wide notification systems (e.g., SMS/email gateways via external PLC).

Applications

• Long-term archival storage of human biospecimens in biorepositories accredited to ISBER Best Practices.
• Cryopreservation of induced pluripotent stem cells (iPSCs) and primary neuronal cultures requiring strict thermal stability.
• Stabilization of thermolabile reagents, monoclonal antibodies, and reference standards in QC/QA laboratories.
• Backup cold chain for vaccine development workflows operating under WHO PQ or USP environmental controls.
• Supporting ISO/IEC 17025-accredited testing labs where documented temperature continuity and alarm response protocols are mandatory.

FAQ

What is the minimum ambient temperature required for stable –86 °C operation?
The unit is rated for climate class N (18–32 °C ambient); performance validation confirms sustained –86 °C operation at 32 °C ambient with <4 °C internal uniformity.
Is the freezer suitable for GMP-regulated environments?
While not pre-validated, its alarm logging, password protection, and optional data recording accessories enable integration into IQ/OQ/PQ protocols under user-defined qualification frameworks.
Can the unit be installed in an unventilated closet?
No—adequate rear and side clearance (≥100 mm) and unrestricted airflow around condenser coils are mandatory to prevent overheating and compressor overload.
Does it support LN₂ or CO₂ backup systems?
Yes—both liquid nitrogen and CO₂ emergency backup interfaces are available as factory-installed options (requires separate ordering and site-specific engineering review).
Are calibration certificates provided with shipment?
Factory calibration verification is performed pre-shipment; NIST-traceable calibration certificates and IQ/OQ documentation packages are available as add-on services.