Water chiller



Efficiency is a major advantage of chillers we create, making them perfect for customers who are concentrated on saving energy and reduction of operating expenses in their projects and installations.


Highest reliability of our chillers achieved by intelligent engineering and assured through the use of time-proven components, maximum manufacturing quality, and thorough equipment testing.


At Kaltra, we pioneer in adopting numerous advanced technologies aimed at improving environmental protection, including safe refrigerants, within our chiller portfolio, while addressing energy efficiency regulations.

Air-cooled chillers


Air-cooled chiller solutions featuring various compressor technologies, a wide range of capacities, and sustainable refrigerant options. Dedicated to the highest energy efficiency across all loads and working conditions, operational reliability and flexibility in applications

Free cooling chillers


Free cooling chillers delivering ultimate energy savings by reducing mechanical cooling to a minimum. The range includes feature-rich models with different types of compressors, sustainable refrigerants and suitable for applications from comfort air conditioning to data center cooling

Water-cooled chillers


An extensive range of water-cooled chillers ranging up to 5 megawatts cooling. Engineered to fit a wide range of applications and proven to be ideal for customers who are focused on maximum energy efficiency, operational reliability, and extended service life

Air-cooled chiller

Kaltra introduced inverter chillers on refrigerant R32

Newly introduced R32 scroll inverter chillers with air-cooled condensers offer an extended operating map (supply water from -8°C to +24°C) and high cooling efficiency on partial loads.
Freecooling chillers

R454b is now an option for Lightstream Scroll II chillers with freecooling

Following its environmental sustainability strategy, Kaltra launched next-generation freecooling chillers with scroll compressors running on R454b low-GWP refrigerant.
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.
Chiller sequence management

Kaltra introduces built-in sequence management for its 2nd generation chillers

Sequence management tool built-in into the control software of Kaltra chillers offers unit networking with load management, resource prioritization, unit rotation, and more for optimized cooling plant operation.
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.
Variable-speed chillers

Kaltra brings variable-speed compressors to Easystream II chillers

Variable-speed chillers to deliver 10% better COP to air conditioning and medium-temperature process cooling applications.
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.
Free cooling chiller

Kaltra updated chillers to comply with ErP 2021

Across the range of its water chillers, Kaltra now provides products that are energy-efficient and compliant with Tier-2 Ecodesign (2009/125/EC) regulations.
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.
Free cooling chiller

Cutting energy costs with free cooling chillers

Discover how to cut energy costs with free cooling chillers and what aspects should be considered when selecting a free cooling system.
Chiller with microchannel condenser coils

Microchannel condenser coil replacement project

Kaltra completed a service project for the replacement of condenser coils at a 6.5MW chilled water production plant.
Screw chiller

Capacity control for screw-compressor chillers

Capacity control mechanisms for screw-compressor chillers: a comparison for variable frequency drive (VFD) vs. slider valve control.
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.
Cooling plant

Essential chiller maintenance checklist

Chiller maintenance checklist: how to prevent cooling system breakdowns and keep chillers running at peak performance and efficiency.
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.
Free cooling chiller

Kaltra extends the capacity of its flagship free cooling chiller range

Kaltra has extended the capacity range of its Lightstream Freecool inverter chiller to 1800kW of refrigeration. Lightstream Freecool chiller lineup was introduced in 2017, initially with a capacity range of 450 to 1200kW.
Water-cooled Turbocor chiller

R1234ze chillers bring efficiency to rolling mill facility

Rolling mill facility cooling has been put into operation with Kaltra’s Turbocor-based chillers running on refrigerant R1234ze.
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.
Water-cooled chiller

R452b chillers added to Kaltra portfolio

Modular water-cooled chillers with scroll compressors – now available with environmental-friendly, low-GWP refrigerant R452b (GWP value as low as 675).
Scroll chiller

Kaltra adds air-cooled version to its Easystream II chiller range

Kaltra announced the commercial launch of scroll chillers that expands an existing lineup of condenserless and water-cooled models with air-cooled version.
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.
Variable-speed water-cooled chiller

Kaltra extends the range of water-cooled chillers with inverter models and adds R513a

Kaltra introduces the new, inverter-driven water-cooled chillers with low-GWP refrigerants R1234ze and R513a, and with the capacity range from 500 to 1800kW.
Free cooling chiller

Air conditioning chiller replacement for a movie theater in Eindhoven

A case study for the replacement of the air conditioning chiller with high-efficient inverter unit with a free cooling system.
Cooling plant

Kaltra expands chilled water plant at multi-tenant commercial centre

Expansion of a chilled water plant of multi-tenant commercial centre with highly efficient water-cooled chillers: a case study
Free cooling chiller

Kaltra modernizes Ultracompact II chiller to add a new free cooling system

Market-successful chillers receive a new, state-of-the-art free cooling system and advanced control software.
Free cooling chiller

Retrofitting air conditioning system with a free cooling chiller

A case study for retrofitting air conditioning system in a multi-story commercial building with a variable speed free cooling chiller.
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.
Free cooling chiller

Kaltra R513a chillers now available

Kaltra made available its Lightstream Freecool chillers now with refrigerant R513a in capacity range from 600 to 1250kW.
Turbocor centrifugal chiller

Kaltra extends its Powerstream Turbo range with high-capacity models

Ecodesign compliant, Turbocor-based water-cooled chillers for industrial and commercial applications. Capacity range: 300kW to 4600kW, ESEER up to 10.50.
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.
Evaporatively-cooled chiller

Enhancing air-cooled chiller performance with evaporative cooling

Air-cooled chillers with an integrated E•VAP™ evaporative cooling system: unprecedented power savings for new and retrofit chilled water applications.
Free cooling chiller

Free cooling chillers improve data center energy efficiency

Kaltra’s inverter-driven free cooling chillers tailored for mission-critical environments lift the energy efficiency and help reducing energy bills.
Turbocor centrifugal chiller

Highly efficient Turbocor-based chillers

Water-cooled Turbocor chillers offer high-efficient, capacity-matched cooling, high efficiency and low maintenance costs in capacity range from 300 to 4500kW.
Evaporative condenser

Green refrigeration saves energy for retail business in Spain

A case study on the secondary loop refrigeration system with the cooling efficiency lifted by high-performance brine chillers and evaporative condensers.
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.
Water-cooled Turbocor chiller

HVAC system modernization on The Parade, Swindon

A case study on the modernization of cooling plant with variable speed drive chillers: reducing the power bills by 25% and cutting maintenance costs.
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.
Cooling plant

Efficiency optimization for cooling plants

Recommendations on cooling plant energy efficiency optimization and chiller sizing during the plant design phase.
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.
Chiller sequencer

Sequence management for chiller plants

Maximizing chilled water plant efficiency with sequence management system: optimization approaches and functions of SMS.
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.
Free cooling chiller

Kaltra announces the new Lightstream Freecool chiller family

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.
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.