Water chiller



Kaltra is committed to continuous development across all its product lines – to increase energy efficiency, reliability and performance in any applications, from light commercial to large facilities.


Our products are created to help lower environmental impact with the use of advanced HVAC technologies, intelligent control, and high-efficiency operation.


Kaltra’s portfolio of products is extensive and uniquely positioned to engineer synergistic solutions and to solve any challenges for our customers.

Water chillers


Wide variety of highly efficient, feature-rich equipment for chilled water production: air-cooled, free cooling, and water-cooled chillers covering most air conditioning, process cooling, and refrigeration applications of different scale and complexity

Precision air conditioners


We offer precision air conditioning systems for mission-critical applications, such as data centers, contaminant-free areas, telecom stations, and other facilities where reliability and energy efficiency are key factors

IT cooling


Market-leading solutions for data center and electronics cooling. From small computer rooms to large mission-critical data centers, we offer the most innovative and efficient room-based, row-based, and rack-based thermal management systems

Air-cooled condensers


With Kaltra’s comprehensive range of air-cooled condensers that cover most refrigeration applications, our customers can tailor-make cooling solutions to meet their requirements

Dry coolers


Kaltra offers several families of highly efficient, feature-rich compact and full-size dry coolers designed to provide cooling of water or glycols in closed-circuit applications of varying scales

Microchannel heat exchangers


Microchannel heat exchangers for condenser, evaporator, and water applications characterized by high heat transfer rates, low internal volume, and compact design – perfectly suitable for high-demanded equipment and applications

Microchannel heat exchanger brazing

Kaltra breaks new ground with microchannel coils for A2L refrigerants

Kaltra expands its line of microchannel heat exchangers for A2L refrigerants, including R290 propane, with higher performance designs.
Air-cooled chiller Lightstream Screw Inverter Evo

Lightstream Evo chillers top the bill of data center’s cooling solutions

Kaltra has announced the release of Lightstream Screw Inverter Evo, a new range of air-cooled chillers with inverter screw compressors, designed for data center cooling.
Air-cooled chiller

More Lightstream Screw II deals underway

The most innovatively engineered and efficient air-cooled chillers of Kaltra and leading in its class globally, Lightstream Screw II lifts new heights in sales.
Air-cooled chiller Lightstream Screw Evo

New-gen Lightstream Evo chillers to be introduced in April 2024

New-gen Lightstream Screw Evo, air-cooled chillers with innovations targeted to improve energy efficiency and sustainability, are to be introduced in April 2024.
Precision air conditioner

Kaltra introduces the new generation of its Delta CRAC units

Delta DX II precision air conditioners: a new generation of direct expansion cooling units with improved energy efficiency with inverter and fixed-speed compressors.
Air-cooled chiller

Free cooling Lightstream Turbo II now available on R1234ze

Free cooling version of Lightstream Turbo II chiller range expanded with models running on low-GWP R1234ze.
Water-cooled chiller

Kaltra debuts water-cooled Easystream Evo chillers/heat pumps on R454b

Kaltra introduces its 4th generation of water-cooled chillers and reversible heat pumps - Easystream Evo - running on lower GWP refrigerant R454b.
Industrial dry cooler

Kaltra updates its Mistral series dry coolers

Kaltra's Mistral product range of industrial dry coolers was added with a wide variety of new heat exchangers, anti-corrosion treatments, and 60Hz models for the USA/Canada market.
Powerstream Turbo II chiller

Kaltra offers reengineered Turbocor-based chillers

Reengineered lineup of centrifugal chillers, Powerstream Turbo II, improves cooling efficiency in IT- and process applications and offers an extended operating range.
Precision air conditioner

Modernized Delta DX/DXi II range to be presented in February

Kaltra is to upgrade its range of precision air conditioners with Delta DX/DXi II range that includes models with inverter scroll compressors.
Dry cooler

Kaltra begins production of dry coolers with stainless steel heat exchangers

Kaltra started the production of flatbed dry coolers with stainless steel heat exchanger tubes distinguished by high corrosion resistance.
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.
Hydrophilic-treated MCHE

Hydrophilic topcoat for microchannel heat exchangers

Hydrophilic coating for microchannel heat exchangers: increases performance under wet conditions, improves condensate drainage and enhances corrosion resistance.
Twin-slab microchannel condenser

Twin-slab condenser coils bring efficiency advantages

Twin-slab microchannel condensers with thin-core subcooler offer tangible benefits for OEMs manufacturing air-cooled chillers and other air-to-refrigerant systems.
Twin-slab air-cooled condenser

Bora air-cooled condensers received enhanced heat exchangers

Innovative twin-slab MCHE condenser coil technology maximizes cooling performance - now adopted to Bora units and expected for compact chillers.
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.
Serpentine heat exchanger

Strong demand for compact microchannel coils triggered production capacity expansion at Kaltra

Kaltra has expanded production capacity for top-demanded compact, low-volume serpentine microchannel heat exchangers.
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.
Precision air conditioner

Kaltra presented its second generation of compact precision cooling units

Kaltra modernized its family of compact precision air conditioners adopting innovative evaporators to lift efficiency, reduce carbon footprint and reduce TCO.
Precision air conditioner

Novel design provides more cooling, higher availability for Lambda precision cooling system

Kaltra to launch updated Lambda DX/DXU II direct expansion precision cooling units with independent refrigeration circuits for high-availability applications.
Microchannel evaporator coil

Dual-circuit microchannel evaporators to revamp performance of air-source heat pumps

Kaltra extends portfolio with high-performance, dual-circuit microchannel evaporators designed and optimized for air-source heat pumps, including reversible units.
Reefer containers

Microchannel coils for trailer and reefer container applications

Kaltra introduces microchannel condenser coils targeted for refrigerated containers and trailers - one of the most demanding cooling applications in terms of reliability under challenging operating conditions.
Water-cooled inverter chiller

Kaltra steps up with Powerstream II inverter chillers on R1234ze

Kaltra targets data center and other mission-critical cooling applications with new Powerstream II inverter chillers with water-cooled condensers.
Screw compressor chiller

Improved efficiency for water-cooled liquid chillers

Latest Bitzer screw compressors announced in Q3 2021 help improve energy efficiency for Kaltra's water-cooled chillers.
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.
Air-cooled chiller

Free cooling modules to integrate with air-cooled chillers

Kaltra introduces high-performance, scalable free cooling modules to couple with air-cooled chillers - for new and existing installations.
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.
Precision cooling unit R32

Kaltra adds R32 version of Compact DX precision cooling units

Running on refrigerant R32 and driven by inverter compressors, Compact DX air conditioners offer high sensible cooling and close temperature control for IT environments.
Microchannel evaporator

Optimized microchannel evaporator design boosts efficiency

Kaltra rolls out all-aluminum microchannel evaporators with optimized outlet manifold design to increase partial load efficiencies.
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.
Compact precision air conditioner

Future-proof and compact: new precision cooling units

Announcing compact close control air conditioners with chilled water cooling source, 5 to 65kW, intended for IT and telecom cooling applications.
Air-cooled scroll chillers

10% higher efficiency for Ultracompact II chiller family

Upgraded Ultracompact II air-cooled chillers demonstrate 10% better efficiency running on lower GWP refrigerants R32/R452b/R454b.
Air-cooled condenser

Kaltra extends its range of air-cooled condensers with Bora XL

Bora XL air-cooled condensers: 65% less refrigerant charge, 20% higher energy efficiency, and superior heat exchanger corrosion protection.
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.
Bora XL series dry cooler

Saving energy and water with redefined dry coolers

Designed with the focus on energy and water savings: the latest Bora XL dry coolers with heat rejection ranged to 1.5MW.
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.
Precision air conditioner

Refrigerant economizer option available for Lambda DX CRAC units

Kaltra introduces Lambda DX CRAC units with pumped refrigerant economizers to maximize annual energy efficiency in applications.
CRAH unit

Kaltra to launch dual-circuit precision cooling units

Kaltra to add dual-circuit precision air conditioners to its flagship chilled water CRAH lineup.
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.
Rack cooling

Rack cooling for high-density IT applications

Discover the advantages and top performance of the space-saving rack cooling systems for high-density applications, from Kaltra.
Heat exchanger coating

Kaltra puts forward innovative high-tech coating to improve heat exchanger performance

Kaltra introduces a new high-tech surface coating that delivers improved heat transfer rates and anti-corrosion properties for microchannel heat exchangers.
Product selection software

Kaltra updates selection software for its products

Kaltra released an updated version of its selection software. KaltraSELECT 4.5 now available for download from the company's website.
Dry cooler

Kaltra raises the bar for industrial dry coolers

The range of high-capacity Mistral dry coolers offers improved heat transfer capabilities and substantial savings on energy consumption.
Precision air conditioner

Kaltra acquaints customers with updated Lambda DX precision air conditioning units

Leading-edge direct expansion (DX) precision air conditioners of the Lambda DX/FGB range offer improved energy efficiency with flash gas bypass technology.
CRAC unit

Kaltra extends its range of precision air conditioners for IT cooling

Modular precision air conditioners received dual cooling circuit to provide highest operational reliability in data center applications.
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.
Remote management software

Kaltra updates remote management tool for HVAC equipment

Kaltra offers free, Android-based remote management tool for chillers and air conditioning equipment. The software provides equipment configuration, monitoring, energy optimization, and other functions.
Fluid coils

Anti-corrosion treatment for microchannel dry coils

Kaltra starts offering protective coating for inner surfaces of its microchannel water coils developed for improved corrosion resistance and longer operating lifespan.
Modular precision air conditioner

Kaltra introduces modular precision air conditioners

Launching a new Lambda CW II series of precision air conditioners with modular design: increased cooling density, improved heat transfer efficiency, maximized ROI.
Microchannel condenser bank

Air-cooled condenser assemblies for end-customers and OEMs

Designed for low-GWP refrigerants, last-generation, low-volume Kaltra's condensers based on microchannel technology display higher heat transfer rates and superior corrosion protection.
E-coated microchannel coil

High-grade corrosion protection for heat exchangers

Kaltra offers microchannel heat exchanger anti-corrosion treatment for HVAC equipment to ensure highest level of protection.
Microchannel heat exchanger

Kaltra offers coil replacements for condensers and water applications

Kaltra offers heat exchanger replacements for end-customers and OEMs: microchannel coils featuring high performance and long service life.
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.
Precision air conditioner

Kaltra updates its range of Delta DX precision air conditioning units

This week Kaltra announced the updated range of its mainstream Delta DX precision air conditioners. New models received the scroll compressors with latest control electronics and recent-generation radial EC fans with Modbus control.
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.
Bora XL dry cooler

Kaltra expands its dry cooler portfolio with Bora XL range

Bora XL dry coolers by Kaltra: innovative and economy solution for cooling fluids in industrial, district cooling and chilled water applications.
Bora XL condenser

Kaltra offers high-performance condensers of Bora XL range

High-performance air-cooled condensers in the capacity range from 150 to 1850kW suited for use with HFC and low-GWP refrigerants.
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.
Air-cooled condenser

Low-charge air-cooled condensers for use with low-GWP refrigerants

Low-charge air-cooled condensers to use with low-GWP refrigerants R449a, R454a, R454, and more; optimized for OEM applications with low initial and running costs.
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

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

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.
Unit cooler

Kaltra starts the production of Tramontana unit coolers

Kaltra Innovativtechnik starts production of its efficient and versatile Tramontana unit coolers with the capacity range of up to 60kW.
Evaporative dry coolers

Kaltra extends its portfolio with evaporative condensers and dry coolers

New range of evaporative air-cooled condensers and dry coolers by Kaltra sets new standards in the field of efficiency and environment safety.
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.
In-row cooling unit

Kaltra announces the second generation of in-row cooling units with a 50% capacity increase

Kaltra launches the second generation of its in-row cooling solution with a cooling capacity of 140kW designed for high power density data centers.
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.
Serpentine coil

Serpentine heat exchangers for small cooling applications

Kaltra offers the latest heat transfer technology based on serpentine coils for small and portable cooling applications.
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 condenser

Air-cooled condensers and dry coolers for refrigeration and industrial process

Mistral is the next generation of air-cooled condensers and dry coolers in horizontal design that cover cooling capacities from 5kW up to 1500kW.
Air-cooled condenser

New air-cooled condensers with microchannel coils and high-performance EC fans

Kaltra today has released the new CNM Series air-cooled condensers intended for use with various HFC and HFO refrigerants.
Precision air conditioner

New direct expansion air conditioners with microchannel evaporators

Kaltra has released a new family of compact precision air conditioners intended for data center and IT cooling applications.
Precision air conditioner

Kaltra launches new range of high-efficient precision air conditioners

Kaltra launches a new range of direct expansion precision air conditioners equipped with cost-effective scroll compressors and microchannel evaporators for high efficiency in applications.
Server rack cooling door

Kaltra launches high-efficiency rack cooling door solution to target data center hotspots

Kaltra launches a rack-based cooling solution intended for use in high-density data centers.
Evaporative fluid cooler

New fluid coolers to be available in Q4 2016

Kaltra introduces hybrid dry coolers with evaporative pre-cooling for process water cooling in industrial, commercial, and data center applications.
Evaporative air handler

Evapair: new generation evaporative air handler

Evapair is a low WUE, indirect evaporative cooling system intended for use in data center applications and designed to function in any climate.
Microchannel coil

Field tests for evaluating microchannel heat exchangers with variable fin pitch

Innovative, variable-geometry microchannel heat exchanger design offers optimized airflow, improved performance and efficiency in applications.
Raised floor

Raised floor systems

Kaltra offers full range of comprehensive raised floor solutions specially designed for using in commercial buildings, data centers, clean rooms, and more.
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.
Equipment maintenance

Predictive maintenance programme

Among a number of services, Kaltra starts offering predictive maintenance services for its clients.