The Thermo Scientific NESLAB Coolflow System I Chiller is a water-to-water heat exchanger engineered for laboratory and industrial applications demanding precise temperature control. It leverages existing facility water supplies to reject process heat in a closed-loop configuration, eliminating problems inherent to direct facility water use—inconsistent flow, pressure fluctuations, and temperature instability. This design delivers energy efficiency and reduced operating costs relative to traditional compressor-based chillers.
Technical Specifications
Cooling Capacity & Heat Removal
• 16 kW rated capacity with heat load removal based on a 10°C temperature differential between facility water supply and application setpoint
• 8 kW heat load: 3.25 gpm at 8.5 psi
• 14 kW heat load: 5.5 gpm at 21.5 psi
• Insufficient cooling water flow reduces rated capacity
Temperature Control
• Setpoint range: +5°C to +35°C
• Temperature stability: ±0.1°C
• Ambient operating range: +10°C to +40°C (50°F to 104°F)
• Panel-mounted TEMPERATURE dial for fluid temperature adjustment
Pumping & Flow
• PD2 pump (60 Hz) delivers 3.0 gpm at 60 psi (11.4 lpm at 4.1 bar)
• Facility water inlet pressure: maximum 65 psig
Electrical
• 115 V / 60 Hz (voltage options available; confirm via serial number on unit rear)
– Key Features
• Panel-mounted gauges monitor recirculating temperature and fluid pressure
• Closed-loop architecture isolates process fluid from facility water variations
• Direct heat rejection to facility water supply eliminates secondary cooling loops
– Typical Applications
Precision cooling for laboratory instrumentation, analytical equipment, and industrial processes requiring stable thermal environments without facility water compatibility concerns.
– Compatibility & Integration
Plumbing Connections
• Cooling water connections: 3/4 inch FPT
• Recirculating water connections: 1/2 inch MPT
















