Kryoheater Selecta

Process thermostat for energy-saving professional temperature control in the working range of -90 up to 200 °C

LAUDA process thermostats of the Kryoheater Selecta (KHS) series ensure high-performance temperature control at high energy efficiency and reliability. The compact device construction provides a long service life and maintenance friendliness. Corresponding to the lowest working temperature, two-stage compressors (up to -60 °C) and/or cascade cooling systems (up to -90 °C) are used. The condenser is cooled by means of cooling water. The cooling capacity is controlled continuously and precisely by injection control. A step switch ensures energy-saving and low-wear partial load operation using an automatic compressor system. By means of the electric heating, Kryoheater Selecta can cover an operating temperature of up to 200 °C.

Your advantages at a glance

Your advantages at a glance

The advantages Your benefits
Kryoheater Selecta
  • Powerful pump (flow rate 85 L/min max. pressure 5.5 bar max.)
  • Magnetic coupling
  • Integrated frequency conversion
  • Pressure limitation
  • High volume flow even in case of pressure loss
  • No sealing problems at the pump shaft as it is hydraulically sealed
  • Highly precise user-specific speed control (40 to 100 percent)
  • Protection of the consumer against excess pressure
Kryoheater Selecta
  • Nitrogen overlay of the expansion vessel
  • Pressure-resistant expansion vessel made of stainless steel
  • No condensation of the air humidity
  • No odours
  • No evaporation and no oxidation of the heat transfer liquid
  • Enables larger operating temperature range of the heat transfer liquids
Kryoheater Selecta
  • Automatic on/off of the second refrigeration step for KHS 2190 W (cascade cooling up to -90 °C)
  • Up to 50 percent energy conservation in applications over -20 °C
Kryoheater Selecta
  • Protection class IP 54
  • Robust construction using steel frames
  • Industrial control cabinet
  • Safe, reliable and long-term use in production environments
  • Protection of the control against all environmental influences, such as dust, dirt, liquids and touch
  • Simple maintenance and service by ideal accessibility to all components
Kryoheater Selecta
  • PLC control (programmable logic controller)
  • 7" touch panel
  • Detailed display of parameters
  • Visualisation of alarm and error messages
  • Extensive data exchange with process control systems
  • Intuitive operation
  • Quick analysis of process data
  • Identification of disturbance variables
Kryoheater Selecta
  • Use of a refrigerant with low global warming potential (Global Warming Potential < 2,500)
  • Low amount of refrigerant
  • Fulfills the European F Gas Directive No. 517/2014

Kryoheater Selecta

Technical Data LAUDA Kryoheater Selecta 3560 W LAUDA Kryoheater Selecta 2190 W
Product Name LAUDA Kryoheater Selecta 3560 W LAUDA Kryoheater Selecta 2190 W
Working temperature min. °C -60 -90
Working temperature max. °C 200 200
Filling volume min. L 15 15
Filling volume expansion vessel L 40 40
Cooling output at 0 °C kW 30 18
Cooling output at -80 °C kW   3.50
Interface(s) USB USB
Temperature stability ±K 0.50 0.50
Heater power kW 18 18
Pump pressure max. bar 5.50 5.50
Pump flow max. (pressure) L/min 85 85