Liquid cooler LRC series

waterlaboratoryfor industrial operation

Overview
-25°C closed recirculating chiller for low-temperature closed-loop cooling. ASET 7-inch color touch-screen controller, cascade refrigeration cooling; explosion-proof version available as an option.

Features

• 7-inch touch-screen circulation chiller with ASET multifunctional controller (temperature curve recording, exportable).
• Closed-cycle pipeline design prevents circulating fluid contamination and water vapor at low temperature.
• Multi-level safety protection and fault alarms for reliable operation.
• Brand compressors and cascade refrigeration technology for extended low-temperature capacity.
• Ergonomic design for convenient access and flexible installation.
• Efficient two-condensate system and plate cool-heat-exchanger for improved heat transfer.
• Temperature control resolution 0.1°C, PT100 temperature feedback; adjustable setpoint and compressor on/off differential.
• Cold-technology design to ensure temperature stability at low setpoints.
• Ambient temperature monitoring and various fault alarms (over-temperature, sensor, high pressure, compressor overheat, liquid level).
• Power-on delay protection, three-level cascade protectors and safety grounding on all parts.
• High-performance circulating pump for continuous 24/7 operation; closed circulation prolongs heat-transfer fluid life.

Technical parameters (representative)
Model: LRC-0250N | LRC-0400N | LRC-0700N | LRC-1000N | LRC-1450N | LRC-2000N
Medium temperature range: -15°C~30°C | -25°C~30°C | -25°C~30°C | -25°C~30°C | -25°C~30°C | -25°C~30°C
Controller: ASET multifunctional controller (7-inch color touch screen, temperature curve record, Excel-format export)
Optional control: Heat-conducting medium outlet temperature control
Communication: MODBUS RTU (RS485)
Temperature feedback: PT100
Cooling capacity (0°C / -10°C / -20°C): 1.5kW / 1kW / 0.55kW (LRC-0250N) | 2.4kW / 1.5kW / 0.8kW (LRC-0400N) | 4kW / 2.7kW / 1.5kW (LRC-0700N) | 7.5kW / 6.3kW / 3.5kW (LRC-1000N) | 10kW / 8kW / 5kW (LRC-1450N) | 15.5kW / 12kW / 7.3kW (LRC-2000N)
Circulation pump (standard): Max 20 L/min 0.7 BAR (0250N/0400N) | Max 35 L/min 1 BAR (0700N) | Max 50 L/min 1 BAR (1000N) | Max 75 L/min 1 BAR (1450N/2000N)
Liquid storage capacity: 15 L | 25 L | 30 L | 35 L | 45 L | 60 L
Compressor: Tecumseh (0250N/0400N) | Copeland (0700N and up)
Evaporator: copper-tube (all models)
Security protection: self-diagnosis; freezer overload protection; high-pressure switch; overload relay; thermal protection; multiple fault alarms
Refrigerant: R-404A
Connection size: DN-15 (0250N) | DN20 (others)
Product size (air-cooled): 400×600×1050 mm | 400×600×1150 mm | 500×680×1350 mm | 550×680×1450 mm | 620×680×1550 mm | 750×750×1750 mm
Weight (air-cooled): 115 kg | 145 kg | 180 kg | 225 kg | 290 kg | 340 kg
Power (standard): AC220V 50Hz 1.5kW (0250N) | AC220V 50Hz 2.2kW (0400N) | AC220V 50Hz 3.5kW (0700N) | AC380V 50Hz 4kW (1000N) | AC380V 50Hz 5kW (1450N) | AC380V 50Hz 6.5kW (2000N)
Material: cold rolled steel (SUS304 optional)
Optional: higher-flow/higher-pressure circulation pumps (35 L/min 2.5 bar, 50 L/min 2.5 bar, 110 L/min 2.5 bar); SUS304 construction; pumps up to 10 bar; alternative power options (220V/60Hz three-phase, 440–480V/60Hz three-phase).

Technical characteristics / specifications

• Series / Model: LRC Series (models LRC-0250N to LRC-2000N)
• Design: closed-cycle pipeline, full closed circulation to avoid contamination and water vapor at low temperature
• Temperature range: selectable down to -25°C (model dependent)
• Controller: ASET multifunctional controller, 7-inch color touch screen, 0.1°C resolution, temperature curve recording and export
• Sensor: PT100 temperature feedback
• Communication: MODBUS RTU (RS485)
• Cooling technology: cascade refrigeration, two-condensate system
• Compressors: Tecumseh (smaller) and Copeland (larger) depending on model
• Heat exchanger: copper-tube evaporator; plate cool-heat-exchanger for heat transfer
• Circulating pump: high-performance pump for continuous 24/7 operation; standard and optional higher-flow / higher-pressure pumps available
• Liquid storage: 15–60 L (model dependent)
• Safety: multiple alarms, power-on delay, overload protections, safety grounding
• Refrigerant: R-404A
• Materials: cold rolled steel (SUS304 optional)
• Dimensions & weight: model-dependent (see parameters)
• Electrical: standard voltages per model; optional 60Hz three-phase supplies available
• Applications: closed-loop low-temperature cooling for laboratories and industrial processes requiring stable low temperatures