Air-Cooled Chillers



    Water chiller


Kaltra offers a broad lineup of air-cooled chillers that includes the models with various compressor technologies – from scroll and screw to centrifugal with magnetic bearing, driven by constant or variable-speed motors. Our air-cooled chillers incorporate the latest technologies, making them the future-proof solution that protects investments.

With a wide range of capacities, options, accessories, and refrigerants available, we tailor our air-cooled chillers to match individual project requirements – be it small, medium, or large-scale cooling facilities. For a variety of applications, ranging from comfort air conditioning to industrial process cooling, our customers can select the best-suited, energy-efficient solution.

Inverter chiller


High-efficient air-cooled chillers featuring inverter-driven screw compressors and microchannel condensing coils. Available with R134a and low-GWP, ozone-friendly refrigerant R1234ze for applications up to 1400kW


  • Inverter-driven screw compressors
  • Flooded-type evaporators
  • Low-GWP refrigerant option
Screw chiller


Reliable and efficient air-cooled chillers equipped with screw compressors and microchannel condensing coils. Suitable for use with R134a and eco-friendly refrigerant R1234ze, for cooling capacities up to 1600kW


  • Screw compressors with stepless capacity control
  • Flooded-type evaporators
  • Low-GWP refrigerant option
Lightstream Screw II Inverter air-cooled chiller


Frequency-controlled compressors of this chiller lineup help cutting annual energy use by up to 35% while maintaining operating reliably over a wide range of conditions. These air-cooled chillers also offer environmental safety and flexibility in applications


  • Frequency-controlled screw compressors
  • Exceptional seasonal efficiency
  • Selection of low-GWP refrigerants
Lightstream Screw II air-cooled chiller


Screw compressor air-cooled chillers with infinite capacity regulation to bring efficient, environmentally sustainable, highly reliable cooling to all types of large applications. Ensures the best performance in a solution that’s easy to install and service


  • Screw compressors with smooth capacity control
  • Improved seasonal efficiency
  • Selection of sustainable refrigerants
Lightstream Scroll II air-cooled chiller


Air-cooled chillers with multiple scroll compressor technology, combining efficient cooling and environment-safe operation. Ranged to 1.1MW cooling and suited to comfort, industrial and process applications


  • Multi-refrigerant scroll compressors
  • Environmental sustainability
  • High full-/part-load efficiency

Lightstream Turbo II air-cooled chiller


Designed around oil-free Turbocor compressors integrated with premium-quality components and with the addition of low-GWP refrigerants R1234ze and R513a benefiting the environment, Lightstream Turbo II delivers an industry-leading energy-efficient cooling


  • High energy efficiency at full/partial loads
  • Turbocor oil-free compressors
  • Selection of lower GWP refrigerants
Air-cooled scroll chiller


A versatile solution for chilled water production in applications up to 300kW. Compact and quiet, these packaged air-cooled chillers are a cost-effective solution for both commercial and industrial markets


  • Scroll compressors
  • Microchannel condensers
  • Hydronic modules
Evaporative chiller


Scroll chillers offering high energy efficiency in air conditioning and process cooling applications. The range features a number of innovations, including evaporative pre-cooling, microchannel condensing coils, and compact evaporators


  • Scroll compressors
  • Evaporative pre-cooling
  • Hydronic modules
Air-cooled chiller R290 propane

Propane-driven chillers to be added to Kaltra lineup

Introducing propane chillers - an environment-safe and efficient solution for process cooling and air conditioning with a wide capacity range from 225 to 1650kW.
Lightstream Screw II air-cooled chiller

Kaltra brings high water temperature chillers for data center applications

Air-cooled chillers optimized for high water temperatures: Kaltra introduces HT models for its scroll- and screw-compressor water chillers for data center market.
Cooling plant

Kaltra has added heat recovery to the latest generation of its air-cooled chillers

Partial heat reclaim package for domestic hot water (up to 60°C) production added to Kaltra's newest air-cooled chillers.
Hydroworx hydronic module

Kaltra offers packaged hydronic modules for its air-cooled chillers

Hydroworx™ hydronic modules for air-cooled chillers: all you need for plant water circulation in one highly customizable package.
Lightstream Screw II Inverter air-cooled chiller

Efficiency step up for variable speed chillers

Recently launched air-cooled chillers with inverter screw compressors offer 21% higher seasonal energy efficiency than the previous generation and environmental sustainability.
Air-cooled chiller

First installation of Lightstream Screw II low-GWP chiller lands in Latvia

The first installation of Lightstream Screw II lands in Latvia: next-generation air-cooled chiller running on HFO-1234ze to cool shopping mall in Riga.
Lightstream Screw II air-cooled chiller

Kaltra set to launch next-generation screw chillers

Air-cooled chiller range with 250-1850kW cooling effort featuring nextgen, high-efficient screw compressor technology is set to launch in Q1 2021.
High-lift Turbocor chiller

New Lightstream Turbo II subrange benefit high-lift applications

Kaltra introduces air-cooled chillers for high-lift applications with oil-free centrifugal Turbocor TTH/TGH compressors.
R32 scroll chiller

Lower-GWP alternatives to refrigerant R410a for air-cooled chillers

Air-cooled chillers with lower-GWP alternatives to R410a refrigerant: brief performance and efficiency comparison.
Cooling plant

Kaltra intends to adopt R515b for its water chillers

Lightstream family of air-cooled chillers running on refrigerant R515b represents the next advance in eco-friendly cooling technology while contributing to performance improvement.
R452b scroll chiller

Kaltra adds R454b models to two of its chiller lineups

Air-cooled chillers running by refrigerant R454b: a 2030-ready solution remarkable by both low environmental impact and reduced operating cost.
Turbocor centrifugal chiller

New Lightstream Turbo II chillers received falling-film evaporators

Recently introduced Lightstream Turbo II chillers received falling-film evaporators for reduced refrigerant charge and lifted energy efficiency.
Air-cooled Turbocor chiller

Kaltra to modernize its air-cooled Turbocor chiller range

Kaltra, the specialist in air-conditioning and heat transfer technologies, modernized its Turbocor compressor-based chillers with air-cooled condensers and presents performance highlights of the series.
R32 scroll chiller

Kaltra launches a range of scroll chillers optimized for lower GWP refrigerant R32

Kaltra extends the portfolio of low-GWP chillers with the launch of Lightstream Scroll range based on its Versa platform and operating on refrigerant R32.
Water-cooled chiller

Air-cooled vs. water-cooled chillers

Air-cooled and water-cooled chillers have many similarities but also differences. This article aims to help decide which chiller type suits your needs best.
R452b scroll chiller

Air-cooled chillers with R452b now available

Kaltra responds to market changes with its air-cooled chillers with scroll compressor technology running with refrigerant R452b.
Canary Wharf chilled water plant

Kaltra completes the chilled water production project in Canary Wharf

Kaltra deployed a central air conditioning plant based on highly efficient chillers with sequencing for a large commercial building in Canary Wharf, London.
Air-cooled chiller R450a

Kaltra adopts R450a to screw chillers

Kaltra introduces air-cooled chillers in the capacity range from 170 to 1550kW adopted for use with refrigerant R450a, a lower GWP mixture of R134a and HFO1234ze.
LPG recovery plant cooling

Kaltra rolls out the second stage of chilled water plant at Sonatrach LPG recovery

A case study for LPG recovery process cooling with air-cooled screw chillers: 5MW chilled water production plant design, construction, and start-up.
Inverter chiller

Kaltra announces a new, broad screw chiller range

Highly efficient cooling products: air-cooled, free cooling and water-cooled chillers, precision air conditioning, solutions based on microchannel technology.
Air-cooled screw chiller

New chillers for Arla dairy processing plant

A case study on the chilled water production site to provide efficient cooling of 120 cubic meters of glycol solution per hour for milk processing plant.
Variable-speed chiller

Kaltra’s advanced cooling solutions help realize massive power savings

Kaltra advanced chilled water plant with inverter-driven chillers offer a 30% reduction in energy consumption and environment-safe cooling with R1234ze gas.
Air-cooled chiller

Kaltra screw chillers serve four-star hotel in Malaga, Spain

In the last week of 2017, Kaltra completed installation and commissioning work on the chiller replacement for a four-star luxury hotel in Malaga, Spain.
Air-cooled chiller

Kaltra reveals the new Ultracompact II product line

Kaltra introduces its new Ultracompact II product line: air-cooled and evaporatively cooled scroll chillers for 50-300kW cooling applications.
Turbocor chiller

Lightstream Turbo chiller range extended with highly efficient models

Trending Turbocor based chiller family by Kaltra has been extended with highly efficient models with energy efficiency ratio (EER) of up to 4.30.
Logistics hub cooling

New logistics hub near Erlangen served by Kaltra chillers

The new logistics hub with 35,000m² for storing bulky materials under controlled environmental conditions provided by Lightstream Screw chillers.
Plant room chiller

Kaltra unveils its new family of packaged chillers

German chiller manufacturer, Kaltra Innovativtechnik, is set to showcase its new Easystream family of air- and water-cooled chillers with scroll compressors.
Variable-speed chiller

Kaltra to announce the updated Lightstream Screw air-cooled chiller family

Kaltra is excited to announce the launch of the updated lineup of Lighstream Screw chillers based on compact screw compressors.
Compact scroll chillers

Kaltra debut a range of updated compact scroll chillers

Kaltra Innovativtechnik begins marketing and selling updated Lighstream UltraCompact air-cooled scroll chillers with microchannel condensing coils.
Air-cooled chiller

V-shaped microchannel coils for chiller applications

V-shaped microchannel condensers: advantages and benefits for manufacturers of air-cooled chillers.
Turbocor chiller

Environment-friendly R1234ze chillers with oil-free centrifugal compressors

Kaltra releases highly-efficient Turbocor-based chillers running on R134a and environmental-friendly refrigerant R1234ze.
LPG recovery plant cooling

Lightstream Scroll chillers for LPG recovery process

Based on its installation experience and technical expertise, Kaltra was selected to assist in the development of a chilled water plant for LPG recovery facility.