Tianfeng LS-15HP Water-Cooled Industrial Circulating Chiller

Overview

The Tianfeng LS-15HP Water-Cooled Industrial Circulating Chiller is an integrated, continuous-duty refrigeration system engineered for precise thermal management of high-heat-load laboratory and industrial equipment. It operates on the vapor-compression refrigeration cycle, utilizing a scroll compressor and optimized refrigerant circuitry (R22 or R407C, configurable per regional regulations) to deliver stable chilled water at tightly controlled temperatures between 0 °C and 10 °C. Unlike air-cooled units, this chiller transfers condenser heat via external cooling water—typically sourced from a cooling tower or municipal supply—enabling higher efficiency, lower ambient noise (<72 dB(A)), and consistent performance in temperature-sensitive environments. Its design adheres to fundamental thermodynamic principles governing heat transfer in closed-loop systems, with thermal load capacity verified under standard conditions: 12 °C inlet / 7 °C outlet chilled water, and 30 °C inlet / 40 °C outlet cooling water.

Key Features

• High-precision temperature control with ±0.1 °C stability over extended operation, achieved via dual-sensor feedback and adaptive PID algorithm
• Stainless steel reservoir (260 L) and pump housing ensure corrosion resistance and long-term fluid integrity in demanding chemical or saline environments
• Dual-mode operation: fixed-setpoint恒温 mode and intelligent adaptive mode that dynamically modulates compressor speed and expansion valve opening based on real-time thermal load fluctuations
• Integrated safety architecture including high/low refrigerant pressure monitoring, compressor winding overtemperature detection, phase-loss protection, and emergency thermal cut-off
• Modular electrical cabinet with CE-compliant Siemens/Schneider contactors, Omron relays, and optional RS485 Modbus RTU interface for centralized building management systems (BMS)
• Low-noise scroll compressor with oil return optimization and vibration-damped mounting, rated for >30,000 hours MTBF under continuous duty
• Front-panel digital display showing real-time chilled water outlet temperature, flow rate, system pressure, and fault codes with multilingual menu support

Sample Compatibility & Compliance

The LS-15HP chiller is compatible with a broad spectrum of laboratory instrumentation requiring stable coolant delivery—including graphite furnace atomic absorption spectrometers (GFAAS), inductively coupled plasma optical emission spectrometers (ICP-OES), ICP-mass spectrometers (ICP-MS), X-ray fluorescence (XRF) analyzers, X-ray diffractometers (XRD), scanning electron microscopes (SEM), and transmission electron microscopes (TEM). Its stainless steel wetted parts meet ASTM A240 Type 304 requirements, and its construction complies with EN 60204-1 (electrical safety) and ISO 5170-2 (performance testing of chillers). The unit supports GLP/GMP workflows through optional audit-trail-capable controllers compliant with FDA 21 CFR Part 11 when paired with validated software platforms. All pressure vessels conform to PED 2014/68/EU standards; refrigerant handling follows F-Gas Regulation (EU) No. 517/2014.

Software & Data Management

While the base model features a standalone digital controller with local setpoint adjustment and alarm logging, optional firmware upgrades enable Ethernet/IP or Modbus TCP connectivity for integration into laboratory information management systems (LIMS) or enterprise SCADA networks. Logged parameters—including outlet temperature, flow rate, compressor run time, and fault history—are timestamped and exportable as CSV files. For regulated environments, the optional RKC FP93 controller provides electronic signature capability, user-level access control (admin/operator/guest), and immutable event logs required under ISO/IEC 17025 and CAP accreditation protocols. Remote monitoring is supported via secure TLS 1.2 web interface with role-based authentication.

Applications

This chiller serves critical thermal regulation functions across multiple domains: in analytical laboratories, it maintains detector and source temperatures in mass spectrometry and X-ray instrumentation to minimize thermal drift and spectral baseline instability; in materials science facilities, it cools electron beam columns and X-ray optics to mitigate thermal lensing effects; in pharmaceutical QC labs, it stabilizes column temperatures in HPLC systems per USP guidelines; in semiconductor metrology, it regulates stage temperatures during wafer inspection to preserve dimensional accuracy. Industrial applications include laser source cooling for micromachining systems, die-casting mold temperature control per ISO 8062, and hydraulic oil temperature stabilization in CNC machine tools to limit thermal growth-induced positioning errors.

FAQ

What is the maximum allowable return water temperature for the condenser side?
The recommended maximum inlet temperature for external cooling water is 35 °C. Sustained operation above 40 °C may trigger high-head pressure alarms and accelerate compressor wear.
Can this chiller operate continuously for 24/7 laboratory applications?
Yes—it is rated for continuous duty (IEC 60034-1 S1 rating) with redundant safety interlocks and thermal overload protection designed for unattended operation in Class II cleanroom or ISO 14644-1 compliant environments.
Is the stainless steel reservoir suitable for deionized or inhibited glycol solutions?
The 304 stainless steel tank is compatible with DI water and up to 30% ethylene glycol mixtures; for higher concentrations or chloride-containing fluids, optional 316L upgrade is available.
Does the unit include flow monitoring and low-flow shutdown?
Yes—a calibrated turbine flow sensor provides real-time L/min readout and initiates automatic shutdown if flow drops below 1.5 L/min for >10 seconds, preventing dry-running damage to the pump and heat exchanger.
How is calibration traceability maintained for temperature control?
The embedded Pt100 sensor is factory-calibrated against NIST-traceable reference standards (±0.05 °C uncertainty at 5 °C); optional annual recalibration service includes ISO/IEC 17025-certified documentation.