LAUDA UC 65 Ultracool Advanced Energy-Efficient Circulating Chiller

Overview

The LAUDA UC 65 Ultracool Advanced Energy-Efficient Circulating Chiller is a high-performance, split-type process cooling system engineered for precision thermal management in demanding laboratory and industrial environments. Designed and manufactured in Germany, it employs a closed-loop refrigeration cycle based on optimized vapor-compression thermodynamics, integrating variable-speed scroll compressors, electronically controlled expansion valves, and adaptive fan speed regulation. This architecture enables dynamic load-matching across fluctuating heat loads—critical for continuous-operation applications such as laser-based machining, UV-curing systems, and analytical instrumentation requiring stable coolant supply. Unlike conventional chillers operating at fixed capacity, the UC 65 modulates its refrigerant mass flow and compressor output in real time, minimizing part-load inefficiencies and achieving up to 50% lower energy consumption compared to legacy units under equivalent operating conditions (per EU Commission test protocol EN 14511). Its operational envelope spans –10 °C to +35 °C with ±0.5 °C temperature stability—validated per ISO 5170-2 calibration methodology—ensuring reproducible thermal conditions for time-sensitive processes.

Key Features

• Energy-optimized refrigeration circuit compliant with EU Ecodesign Directive (EU) 2016/2281, exceeding minimum SEPR (Seasonal Energy Performance Ratio) requirements by ≥35%.
• Variable-speed compressor and axial fans enabling precise capacity modulation from 10% to 100% of nominal load without cycling losses.
• High-flow, low-pulsation circulation pump delivering 367 L/min at 6.9 bar pressure—engineered for low NPSHr operation and compatibility with long-distance piping networks.
• 210 L stainless-steel reservoir with integrated level sensor, anti-corrosion coating, and dual-level temperature monitoring (inlet/outlet).
• IP54-rated enclosure suitable for semi-outdoor installation; corrosion-resistant housing and condenser coil designed for ambient temperatures up to 45 °C.
• Integrated Ethernet port and LAUDA Cloud-ready firmware supporting secure TLS 1.2 communication, device diagnostics, and firmware over-the-air (FOTA) updates.

Sample Compatibility & Compliance

The UC 65 is compatible with standard aqueous glycol solutions (up to 35% propylene glycol), deionized water, and other non-aggressive heat-transfer fluids meeting ASTM D1384 corrosion inhibition specifications. Its fluid path components—including pump impeller, heat exchanger plates, and reservoir—are constructed from AISI 316 stainless steel and EPDM elastomers to ensure long-term chemical compatibility and minimal leachables. The chiller complies with IEC 61000-6-2 (EMC immunity) and IEC 61000-6-4 (EMC emissions), and meets essential safety requirements under EN 60335-1 and EN 60335-2-40. For regulated environments, audit trails, user access control, and electronic signature support are available via optional LAUDA LabManager software—designed to align with FDA 21 CFR Part 11 and EU Annex 11 data integrity principles.

Software & Data Management

LAUDA Cloud serves as the central platform for remote supervision, predictive maintenance, and historical trend analysis. Real-time parameters—including refrigerant suction/discharge pressures, evaporator superheat, pump current draw, and fluid temperature differentials—are transmitted at configurable intervals (1–60 sec). Local HMI features a 7-inch capacitive touchscreen with multilingual interface (EN/DE/FR/ES), offering intuitive setpoint adjustment, alarm history review, and service mode diagnostics. All operational logs—including start/stop events, fault codes, and parameter changes—are timestamped and stored onboard for ≥12 months. Optional LabManager software extends functionality with automated report generation (PDF/CSV), deviation alerting via email/SMS, and integration into enterprise SCADA or MES systems via OPC UA 1.04.

Applications

The UC 65 supports thermally sensitive equipment requiring stable, high-flow coolant delivery, including but not limited to: UV-curing printing systems, fiber laser cutting and welding stations, semiconductor photolithography tools, hydrogen generators with PEM electrolyzer stacks, CNC machining centers with spindle cooling circuits, and high-power LED test rigs. Its wide temperature range and high-pressure capability also make it suitable for cooling vacuum chamber jackets, calorimetry baths, and pilot-scale chemical reactors where thermal inertia must be actively managed during exothermic reactions.

FAQ

What is the minimum allowable inlet water temperature for the condenser side?
The unit requires a maximum condenser inlet water temperature of 32 °C per EN 14511 testing conditions; operation above this threshold may trigger automatic derating or shutdown.
Can the UC 65 be integrated into a Building Management System (BMS)?
Yes—via Modbus TCP (standard) or BACnet/IP (optional module), enabling read/write access to key process variables and status signals.
Is glycol concentration monitoring supported?
No built-in refractometer; however, optional external conductivity/temperature sensors can be connected via analog inputs for indirect glycol estimation.
What is the expected service interval for the refrigeration circuit?
Compressor oil and filter-drier replacement is recommended every 12,000 operating hours or 36 months—whichever occurs first—under typical laboratory duty cycles.
Does the unit support dry-run protection for the circulation pump?
Yes—integrated flow switch and ultrasonic liquid level detection prevent dry operation and initiate immediate shutdown upon loss of fluid continuity.