AUCMA YCD-288A Medical Refrigerator-Freezer

Overview

The AUCMA YCD-288A Medical Refrigerator-Freezer is an upright, dual-zone, microprocessor-controlled cold storage system engineered for reliable, compliant, and temperature-stable preservation of sensitive biological and pharmaceutical materials. Designed to meet the operational requirements of clinical laboratories, blood banks, public health institutions, and research facilities, it maintains two independently controlled temperature zones: a refrigerated compartment operating at 2–8 °C for vaccines, reagents, and whole blood components; and a frozen compartment operating at −10 to −40 °C for plasma, serum, tissue samples, and cryopreserved cell suspensions. Its architecture follows the fundamental principles of forced-air convection cooling with separate evaporator circuits, ensuring minimal thermal cross-talk between zones and high spatial uniformity (< ±1.5 °C) across each chamber. The unit complies with core regulatory expectations for medical-grade cold chain integrity, including IEC 61000-4 electromagnetic compatibility standards and ISO 13485-aligned design controls for medical device distribution.

Key Features

• Independent dual-zone microprocessor control with real-time digital display of both refrigerated and frozen compartment temperatures
• Configurable zone shutdown: both compartments can be individually deactivated without affecting the other, enabling energy-efficient partial operation during low-demand periods
• Forced-air refrigeration in the 2–8 °C zone ensures rapid recovery after door openings and uniform temperature distribution (validated per ASTM F2657)
• Multi-level alarm system: audible buzzer + visual LED flashing for high/low temperature excursions, sensor failure, and refrigerated compartment door-open events
• Comprehensive safety protections: compressor start-delay circuitry, minimum off-cycle timing, overcurrent cutoff, and automatic defrost management
• Eco-conscious refrigeration: uses R134a or R600a refrigerant (model-dependent) and cyclopentane foam insulation—both ozone-depleting substance (ODS)-free and low-global-warming-potential (GWP) compliant
• Human-centered interface: backlit LCD panel with intuitive navigation; stainless-steel adjustable shelves and transparent polypropylene drawers in the frozen section; double-glazed, low-emissivity coated tempered glass door for condensation resistance and visual monitoring
• Integrated mechanical lock with key-based access control to restrict unauthorized use—critical for narcotics, controlled substances, and regulated biologics
• Wide-input voltage tolerance (±10% of 220 V) accommodates fluctuating grid conditions common in regional healthcare infrastructure

Sample Compatibility & Compliance

The YCD-288A supports long-term storage of temperature-sensitive biospecimens including whole blood, packed red cells, platelet concentrates (at 20–24 °C not applicable—unit does not support room-temp storage), plasma, serum, CSF, DNA/RNA extracts, monoclonal antibodies, and lyophilized vaccines. Its validated temperature stability profile meets WHO guidelines for vaccine cold chain integrity (Annex 9, TRS 1015) and aligns with CLSI GP44-A4 recommendations for laboratory refrigerator performance verification. While not certified to UL 4750 or NSF/ANSI 456 (as a Class II medical device distributor product), its construction, labeling, and documentation are consistent with ISO 14971 risk management principles and support GLP-compliant recordkeeping when integrated with external temperature mapping and audit-trail systems.

Software & Data Management

The YCD-288A operates as a standalone hardware platform with no embedded data logging or network connectivity. However, its analog temperature outputs (0–5 V or 4–20 mA optional on select configurations) are compatible with third-party continuous monitoring systems (e.g., Sensitech, Control Company, or TempTale). When paired with calibrated external probes and compliant software platforms, the unit supports 21 CFR Part 11–aligned electronic records—including user authentication, audit trails, and alarm event timestamps—required for FDA-regulated environments. Routine validation activities (IQ/OQ/PQ) may be performed using NIST-traceable thermistors and documented per ISO/IEC 17025 procedures.

Applications

• Hospital pharmacy and central supply departments managing vaccine inventories and IV admixtures
• Blood bank operations requiring segregated storage of whole blood (2–6 °C) and frozen plasma (≤−18 °C)
• Public health laboratories handling outbreak response specimens under national surveillance programs
• Academic and contract research organizations preserving primary cell isolates, PBMCs, and clinical trial biosamples
• Disease control centers maintaining reference strain collections and diagnostic reagent stocks
• Veterinary diagnostic labs storing antigen panels, ELISA kits, and zoonotic pathogen isolates

FAQ

What is the temperature range for each compartment?
The refrigerated compartment is factory-set to maintain 2–8 °C; the frozen compartment operates within −10 to −40 °C. Both ranges are user-adjustable within these limits.
Does the unit include temperature mapping validation data?
No—mapping must be performed onsite by the end user or qualified service provider per ISO 14644-3 and EU GMP Annex 15 requirements.
Can this refrigerator-freezer be used for storing cryogenic vials?
No—it is not rated for cryogenic storage (e.g., −80 °C or liquid nitrogen). For such applications, dedicated ultra-low temperature freezers are required.
Is remote monitoring supported natively?
Not out-of-the-box. Integration with building management systems or cloud-based monitoring requires external sensors and gateway hardware.
What maintenance schedule is recommended?
Condenser coil cleaning every 3–6 months; door gasket inspection quarterly; annual calibration verification of internal sensors using traceable references.