Taitec CL-300 Coolnit Heating Cooling Water Bath Chiller 1°C–69°F R-12 Air

Taitec CL-300 Coolnit Heating Cooling Water Bath Chiller 1°C–69°F R-12 Air Cooled

The Taitec CL-300 Coolnit is a self-contained, air-cooled heating and cooling recirculating water bath. It combines an immersion bath/reservoir with an integrated refrigeration compressor, allowing precise temperature control from as low as 1°C up to 69°F (~20.5°C). A second recirculation pump is included for routing chilled or heated fluid to an external circuit, and separate power switches allow the bath to be run in heating-only mode without engaging the compressor.

Specifications & What's Included

• Model: Taitec CL-300 Coolnit
• Temperature range: 1°C (cooling) to ~20.5°C / 69°F (heating)
• Cooling method: Air cooled
• Refrigerant: R-12
• Bath/reservoir: Stainless steel immersion tank, 13.5" × 11.25" × 6" deep
• Fluid selection: Water or Antifreeze (front-panel toggle switch)
• Recirculation pump: Primary internal pump plus second pump for external chilling circuit
• Separate power switches: Bath heating and compressor/chilling can be operated independently
• Digital temperature controller with °C display and flow monitor schematic on front panel
• TEMP SET rotary knob and SELECT button on front panel
• Ext. Set input: Local / Remote (DC 0–5V) for external temperature setpoint control
• Ext. Sensor input: Local / Remote switchable via rear-panel connector
• Outside Sensor port: Side panel connector for external probe
• Circulation Pump switch: NO/OFF toggle on side panel
• Alarm Output (ALM OUT): AC 250V, 5A max — rear panel
• Fluid ports: OUTPUT and INPUT barbed fittings on rear panel for external loop
• Power: 100V AC, 50–60Hz (per rear breaker panel label)
• Circuit breaker: BJJ2-20-31, 30A (rear panel)
• Mobility: Rolling casters for easy repositioning

Applications

Recirculating heating and cooling water baths like the CL-300 are standard equipment in analytical, chemical, biological, and semiconductor laboratories where samples or external instruments need to be held at a stable, controlled temperature. The CL-300's dual heating and cooling capability makes it suitable for applications such as viscosity testing, reaction temperature control, environmental simulation, and thermal conditioning of external equipment via the recirculation loop. The external recirculation pump port allows the chilled or heated fluid to be circulated through jacketed vessels, sample chambers, or other process equipment outside the bath itself — a common requirement in chemistry and materials testing labs. Units of this type were common in Japanese and international laboratory settings from the late 1980s through the 1990s and remain in service today wherever precise low-volume temperature control is needed.