Recirculating Chiller

DLK 4502 I

Energy-saving, quiet, user-friendly and robust: high-quality 4.5 kW recirculation chiller for laboratories and industry.

  • Temperature range: 0°C to +40°C
  • Cooling capacity: 4500 watts
  • Flow rate: 30l/min
  • Flow pressure: 2,9 bar


  • energy-efficient: 
    - fan with EC technology
  •  low noise level:
    - particularly quiet components
    - fan adjusts its speed to the required value
  • user-friendly:
    - good handling due to the castors with brake at the front
    - easy emptying by pumping device
  • high-quality components:
    - touchscreen controller with high-grade glass screen and integrated flow and digital fill level indicators
    - components from renowned manufacturers
    - refrigeration unit: fully hermetically sealed, air-cooled, low maintenance
  • high operational reliability:
    - thermal overload protection
    - dry running protection
    - optical and acoustical alarm
    - error messages are displayed in plain text

Technical data

Model DLK 4502 I
Operation 0°C to +40°C
Control accuracy +/- 1 K
Cooling capacity in watts
at +20 °C 4500
Circulation pump
Flow rate 30 l/min
Flow pressure  3,0 bar
External dimensions [WxDxH] 76 x 83 x 63 cm
Weight 80 kg
Ambient temperature +12°C to +30°C
Electrical connection 400V 3~ 50Hz
Max. current 7 A
Coolant tank 20 l
Hose connection 13 mm | 19 mm


  • MOD bus interface
  • Potential-free alarm contact with connection to an external alarm system
  • Voltage input for externally setting the set point
  • Voltage output for reading the actual value
  • Interface converter/gateway from RS485 to USB or Ethernet
  • Optional direct measurement of the application's temperature with an external gauge; by subsequently setting the set point, greater temperature stability can be achieved than with a standard system
  • stronger pump with higher flow rate and higher flow pressure on request

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