YC-2A Chromatography Refrigerator

Overview

The YC-2A Chromatography Refrigerator is an engineered low-temperature enclosure specifically designed to support high-fidelity biomolecular separation workflows in laboratory-scale chromatography applications. Unlike standard refrigerated cabinets, the YC-2A integrates structural, thermal, and operational design elements optimized for compatibility with automated liquid chromatography systems—including ÄKTA™ platforms—while maintaining stable, uniform temperature control across its 800 L internal volume. Its core thermodynamic architecture employs a hermetically sealed compressor-based refrigeration system, delivering consistent cooling performance within the critical 1–10 °C operating range required for preserving column integrity, minimizing buffer crystallization, and suppressing enzymatic degradation during extended fraction collection or overnight runs. The cabinet’s height-constrained external profile (1960 mm) ensures seamless transit through standard laboratory doorways and elevators, while its tall internal chamber (1500 mm H) accommodates vertical chromatography columns up to 1.5 meters in length without compromising accessibility or ergonomic handling.

Key Features

• Hermetically sealed refrigeration system with high-capacity compressor, engineered for continuous operation under load and minimal maintenance intervals
• Rear-mounted condenser fan assembly eliminates interior condensate formation, maintaining low relative humidity (<40% RH typical) to prevent moisture-related interference with electrical components and column hardware
• Full stainless steel interior surfaces (AISI 304 grade) provide corrosion resistance, ease of decontamination, and compliance with ISO 14644-1 Class 8 cleanroom-compatible surface standards
• Dual-layer tempered glass door with mechanical lock ensures visual monitoring without thermal disruption and meets basic laboratory security requirements for controlled-access environments
• Two vertically adjustable stainless steel column mounting rods and two open-design load-bearing shelves (standard: 650 × 345 mm; sliding variant: 565 × 560 mm) enable flexible configuration for multi-column setups and peripheral tubing routing
• Integrated LED task lighting and UV-C germicidal lamp (254 nm) support both real-time workflow observation and periodic cabinet sanitization between experiments
• Dual-stage thermal safety system: independent over-temperature alarm and differential-temperature alarm (e.g., detecting localized heat sources or door-open events), configurable with audible/visual alerts
• Dedicated low-temperature power switch prevents accidental activation of non-rated peripherals below 5 °C, safeguarding connected instrumentation and sensors

Sample Compatibility & Compliance

The YC-2A supports a broad range of chromatographic modalities—including size-exclusion (SEC), ion-exchange (IEX), affinity (AC), and hydrophobic interaction (HIC) chromatography—when operated within its specified thermal envelope. Its interior layout accommodates common column diameters (10–100 mm ID) and modular fraction collectors, peristaltic pumps, and fraction chillers. The cabinet complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and incorporates grounding continuity, insulation resistance, and leakage current safeguards. While not certified to GLP or GMP Annex 1 as a standalone unit, its temperature stability (±0.5 °C), alarm logging capability (with optional RS-485 interface), and material traceability support integration into validated workflows aligned with FDA 21 CFR Part 11 data integrity expectations when paired with compliant data acquisition software.

Software & Data Management

The base YC-2A operates via analog electromechanical controls with digital temperature display. An optional RS-485 serial interface enables connection to centralized environmental monitoring systems (EMS) for remote temperature logging, alarm forwarding, and audit trail generation. When integrated with third-party SCADA or LabVantage-compatible platforms, the unit supports time-stamped temperature records, user-access logs, and deviation reporting—key elements for regulatory review under ISO/IEC 17025 or pharmaceutical quality systems (ICH Q5C, Q7). No proprietary software is bundled; all communication protocols adhere to Modbus RTU standards for interoperability.

Applications

• AKTA™-based protein purification under cold-chain conditions to preserve tertiary structure and binding affinity
• Preparative chromatography of labile nucleic acids and oligonucleotides requiring sub-10 °C stabilization
• Long-duration gradient elutions where ambient temperature fluctuations would compromise retention time reproducibility
• Cold storage of pre-packed columns, affinity resins, and pH-sensitive buffers prior to use
• Support environment for cryo-EM sample preparation workflows requiring stable 4 °C staging zones
• General-purpose low-temperature storage of reagents, standards, and biological samples where -20 °C freezing is unnecessary but refrigerated stability is critical

FAQ

Is the YC-2A suitable for GMP-regulated bioprocessing environments?
It can serve as a qualified ancillary unit within GMP workflows when installed, calibrated, and maintained per site-specific SOPs. Full qualification (IQ/OQ/PQ) must be performed by the end user using documented procedures and NIST-traceable references.

Can the sliding shelves accommodate an ÄKTA pure 25 system with tubing manifolds?
Yes—the 565 × 560 mm sliding shelf provides unobstructed lateral access and load capacity ≥35 kg, sufficient for the ÄKTA pure 25 chassis plus associated fluid paths and connectors.

Does the unit include temperature mapping validation documentation?
No. Temperature mapping must be conducted post-installation per ISO 14644-3 or EU GMP Annex 1 guidelines using calibrated multi-point loggers.

What is the expected service life of the refrigeration system under continuous operation?
With routine maintenance (condenser coil cleaning every 6 months, annual refrigerant pressure verification), the sealed compressor system is rated for ≥15,000 hours of operation.

Are replacement UV-C lamps and door gaskets available as spare parts?
Yes. OEM-specified UV-C lamps (GPH15T5L/4P) and food-grade silicone door gaskets are stocked and supplied with full dimensional and material certifications.