HTCY LX-S65 Integrated Air-Cooled Circulating Chiller

Overview

The HTCY LX-S65 is an integrated air-cooled circulating chiller engineered for precision thermal management in laboratory and analytical instrumentation environments. It employs a vapor-compression refrigeration cycle with hot-gas bypass control to deliver stable, continuous cooling across a defined operational range of 8–30 °C. Unlike tap-water-based cooling solutions, the LX-S65 provides closed-loop recirculation—eliminating variability from municipal water pressure, temperature fluctuations, and mineral deposition while conserving water resources. Its design prioritizes long-term reliability under sustained duty cycles, making it suitable for continuous operation with spectrometers, laser systems, ICP-OES/MS, NMR precooling circuits, rotary evaporators, and other heat-sensitive equipment requiring constant flow, pressure, and temperature delivery.

Key Features

• Stainless-steel reservoir and fluid path components ensure corrosion resistance and compatibility with deionized water or ultrapure water—critical for preventing contamination in sensitive analytical workflows.
• High-efficiency dual-fan air-cooling system with total airflow of 1664 m³/h maintains consistent condenser performance even in ambient temperatures up to 35 °C.
• LCD controller with 0.1 °C display resolution and ±0.3 °C temperature stability supports reproducible experimental conditions; includes programmable high/low temperature alarms with configurable normally open/normally closed relay outputs.
• Integrated multi-stage stainless-steel centrifugal pump delivers rated flow of 30 L/min at 2.7 bar pressure and 27 m head—sufficient to overcome typical system backpressure from tubing, filters, and instrument heat exchangers.
• Flow protection circuit monitors real-time circulation rate via adjustable flow meter; triggers shutdown if flow drops below user-defined threshold (default: 2.0 L/min), safeguarding connected instruments from dry-run damage.
• Hot-gas bypass modulation enables precise capacity control without compressor cycling—reducing mechanical stress, extending compressor life, and minimizing temperature overshoot during load transients.

Sample Compatibility & Compliance

The LX-S65 is designed for use with non-aggressive aqueous coolants only—including deionized water, distilled water, and glycol/water mixtures (up to 30% v/v). It is not intended for organic solvents, corrosive media, or particulate-laden fluids. The unit complies with IEC 61000-6-3 (EMC emission standards) and IEC 61000-6-2 (immunity). All electrical components meet IP20 ingress protection requirements. While not certified to UL/CSA or CE for medical or hazardous-area use, its construction aligns with general laboratory safety practices per ISO/IEC 17025:2017 Annex A.2.4 for auxiliary equipment supporting accredited testing.

Software & Data Management

The LX-S65 operates as a standalone hardware-controlled system with no embedded firmware-based data logging or network interface. Temperature setpoint, actual bath temperature, alarm status, and pump/run state are displayed locally on the LCD panel. Relay outputs (high-temp, low-temp, flow fault) support integration into external supervisory systems via dry-contact signaling. For laboratories operating under GLP or GMP frameworks, manual logbook entries or external data acquisition systems may be used to record operational parameters; however, the unit does not provide audit-trail functionality or electronic records compliant with FDA 21 CFR Part 11.

Applications

• Cooling of high-power lasers and optical benches requiring stable thermal sink performance
• Temperature stabilization for ICP-OES, ICP-MS, and XRF sample introduction systems
• Condenser cooling in rotary evaporation and fractional distillation setups
• Thermal regulation of electrophoresis power supplies and gel imaging systems
• Precooling loops for superconducting magnet cryocoolers and NMR probe housings
• Support of calorimetry cells and reaction calorimeters demanding constant coolant temperature

FAQ

What coolant types are compatible with the LX-S65?
Deionized water, distilled water, or aqueous ethylene glycol solutions (≤30% concentration) are recommended. Avoid chlorinated, acidic, or solvent-based coolants.
Does the unit support remote monitoring or Ethernet connectivity?
No—the LX-S65 lacks digital communication interfaces (e.g., RS485, Modbus, Ethernet). Monitoring is limited to local LCD readout and relay-status signals.
Can the chiller maintain ±0.1 °C stability over extended periods?
The specified temperature stability is ±0.3 °C under steady-state conditions per ISO 13312-1 test methodology; tighter stability requires external PID-controlled secondary loops.
Is the reservoir accessible for routine maintenance and cleaning?
Yes—the top-mounted lid provides full access to the 18.5 L stainless-steel tank, including drain port (DN15) and level sensor calibration points.
What is the expected service interval for the R22 refrigerant system?
R22 is a legacy HCFC refrigerant; while the sealed system requires no scheduled replenishment, retrofitting to R404A or R449A is possible during major compressor service—subject to regulatory approval in your jurisdiction.