Screw Chillers

With over 50 years’ experience, RHOSS has been certified and recognised for their innovation, quality and professionalism within the industry.

With over 50 years’ experience, RHOSS has been certified and recognised for their innovation, quality and professionalism within the industry.

As the exclusive UK agent for the Italian manufacturer RHOSS, Klima-Therm provides a wide range of air cooled chillers using semi hermetic SCREW compressors.




Using non-flammable R134A refrigerant gas, they range between 300 kW with single compressor and up to 1700 kW of cooling - the latest units are equipped with 8 compressors and 2 independent circuits, offering flexibility for your application.

Single pump or double pump chillers with high head pressure or a tank for the water system are available for quick despatch to suit your project deadline.

Class A efficient, reliable and ErP 2021 compliant, our products have been designed to achieve excellent EER values. From standard chillers to very quiet units (reducing the Sound Power Level up to 10dBA) and highly productive models, this can make a noticeable difference to long-term building costs, while improving inhabitants’ wellbeing.

Screw range units are also available for process cooling, allowing flexible water temperatures as low as -10°C (including a % of glycol concentration). With operations down to -20°C outdoor temperature, the units are available with a comprehensive range of accessories depending on customer requirements:

  • Soft starter to reduce the load and torque in the power train and electric current surge during the start up
  • Pre-painted coils for marine and seaside environments
  • Hydronic modules with pump, double pumps or tank and pump set up
  • Gas leak detection
  • Power factor correction
  • Compressor shut off valves
  • BMS connection
  • Noise reduction
  • Master/Slave control for multiple chillers
  • Desuperheater
  • 100% heat recovery unit

All RHOSS chillers are EUROVENT certified and factory tested to ensure the highest quality products.
Visit the RHOSS website:
For further information on our products, please leave your details and we will be in touch!

Our Latest Projects


Former MOD Facility, Farnborough - Replacement required due to age of existing plant, space liberation, environmental & running cost considerations. Read more

Project Dart

Klima-Therm recently carried out a “mega” data centre cooling project on behalf of a major high street bank for its award-winning Project Dart using 12 Turbomiser chillers. Read more

National Library of Scotland

The National Library of Scotland, one of Europe’s most important research libraries, has installed Turbomiser chillers from Klima-Therm at its main Edinburgh site. Read more

Enquire Now


With a complete range of air-conditioning and refrigeration equipment, Klima-Therm will offer a solution that works for you, your building and your budget.