Tianfeng TF-LS-1.5 kW Compact Circulating Chiller

Overview

The Tianfeng TF-LS-1.5 kW Compact Circulating Chiller is an integrated, water-cooled thermal management system engineered for precision temperature control in demanding industrial and laboratory environments. It operates on a vapor-compression refrigeration cycle, utilizing a scroll compressor and optimized refrigerant circuitry to deliver stable cooling capacity of 1.5 kW at standard conditions (inlet water 12 °C, outlet water 7 °C; ambient air 30 °C inlet / 40 °C outlet). Designed for continuous-duty operation, the unit maintains setpoint temperatures within ±0.3 °C across its operational range of 5–30 °C, making it suitable for applications requiring tight thermal regulation—particularly where heat dissipation from sensitive instrumentation or process equipment must be managed without thermal drift or mechanical stress.

Key Features

• Integrated compact architecture with footprint of only 0.325 m² and height under 0.77 m—ideal for space-constrained labs and machine tool integration.
• Stainless steel water reservoir (15 L) and corrosion-resistant circulation pump ensure long-term fluid integrity and compatibility with deionized water, glycol-water mixtures, and mild aqueous coolants.
• Digital PID temperature controller with real-time display provides intuitive setpoint adjustment, ramp-soak programming, and deviation alarms; optional RKC (Japan) controller available for enhanced repeatability and GLP-compliant logging.
• Multi-layer safety architecture includes compressor overheat detection, high/low refrigerant pressure cutoffs, overcurrent protection, and overtemperature shutdown—fully compliant with IEC 61000-6-2/6-4 EMC standards.
• Low-noise operation (<65 dB(A) at 1 m) achieved via vibration-damped mounting, acoustically insulated compressor housing, and optimized fan blade geometry.
• Modular electrical design featuring certified components from Siemens, Schneider Electric, and Omron ensures reliability under 220 V / 50 Hz mains supply and supports extended mean time between failures (MTBF > 25,000 h).

Sample Compatibility & Compliance

The TF-LS-1.5 kW chiller is compatible with a broad spectrum of heat-generating analytical and manufacturing equipment, including but not limited to graphite furnace atomic absorption spectrometers (GFAAS), inductively coupled plasma optical emission spectrometers (ICP-OES), ICP-mass spectrometers (ICP-MS), X-ray fluorescence (XRF) and X-ray diffraction (XRD) systems, scanning and transmission electron microscopes (SEM/TEM), laser marking/cutting/welding platforms, CNC spindles, vacuum deposition chambers, and semiconductor wafer processing tools. Its stainless steel wetted parts meet ASTM A240 Type 304 requirements, and the system conforms to ISO 9001:2015 quality management protocols. While not inherently 21 CFR Part 11 compliant, the optional RKC controller supports audit-trail-enabled operation when deployed in GMP/GLP-regulated pharmaceutical or biotech laboratories.

Software & Data Management

The base configuration includes local digital interface only—no embedded software or network connectivity. However, analog 0–10 V or 4–20 mA output signals are provided for external SCADA or PLC integration, enabling centralized monitoring of outlet temperature, pump status, and fault codes. When equipped with the optional RKC FP93 controller, the unit supports RS-485 Modbus RTU communication, timestamped event logging (up to 10,000 entries), password-protected parameter access, and configurable alarm relay outputs—facilitating traceability in regulated environments. Data export is supported via USB memory stick (FAT32 format), with CSV-formatted logs compatible with Excel, LabVIEW, and MATLAB for post-processing and statistical process control (SPC) analysis.

Applications

• Materials Analysis Laboratories: Stabilizes detector housings, X-ray tubes, and plasma torches in ICP, XRF, and SEM systems to minimize thermal noise and spectral drift.
• Laser Systems: Maintains diode-pumped solid-state (DPSS) and fiber laser head temperatures within ±0.2 °C to preserve beam quality, wavelength stability, and diode lifetime.
• Plastics Processing: Cools injection mold cavities to reduce cycle time by up to 30%, suppress warpage and internal stress, and improve surface finish per ISO 294-4.
• Metalworking & CNC: Regulates hydraulic oil and spindle bearing temperatures to limit thermal growth, maintaining positional accuracy per ISO 230-3.
• Pharmaceutical Manufacturing: Controls jacketed reactor and fermenter temperatures during API synthesis and cell culture processes—supports validation per EU Annex 15 and FDA Process Validation Guidance.
• Electronics Testing: Manages thermal load during burn-in and environmental stress screening (ESS) of PCB assemblies and power modules.

FAQ

What is the maximum allowable return water temperature?
The unit is rated for continuous operation with inlet water temperature ≤40 °C. Exceeding this threshold increases compressor discharge pressure and reduces efficiency; sustained operation above 45 °C may trigger high-pressure cutout and require service intervention.
Can this chiller operate with ethylene glycol solutions?
Yes—up to 30% (v/v) ethylene glycol in deionized water is supported; however, flow rate and pressure drop must be recalculated using manufacturer-provided viscosity correction charts.
Is remote monitoring possible without the optional RKC controller?
Basic status monitoring (on/off, overtemperature alarm) is available via dry-contact relay outputs; full telemetry requires either the RKC upgrade or third-party analog signal conditioning.
Does the chiller meet CE or UL certification requirements?
The TF-LS series carries CCC (China Compulsory Certification) and complies with GB 4706.1 and GB 4706.13 safety standards; CE marking is available upon request for EU-bound units with modified power input and EMC filtering.
What maintenance intervals are recommended for laboratory use?
Filter cleaning every 3 months, refrigerant pressure verification annually, and full system inspection—including condenser coil cleaning and coolant pH testing—every 24 months under continuous operation.