Kaltra is set to launch its Lambda DX precision air conditioning system employing pumped refrigerant economizer. Lambda DX combines direct expansion operation during warmer ambient temperatures and refrigerant economizer mode during cooler temperatures, resulting in a reduction in annual power consumption for the system.
The development of environmentally friendly refrigerants for air conditioning and refrigeration equipment is imperative to the growth of HVAC technology. The low-GWP refrigerants like R1234ze are promising candidates for replacing HFC refrigerants. However, these refrigerants are flammable. To address the flammability issue, Honeywell developed Solstice® N15, a non-flammable HFO blend.
Why rack-level cooling?
Heat densities and, consequently, cooling costs rise a lot for modern data centers, making cooling efficiency the stirring topic for data center professionals. The reason for growing heat densities is advance in IT technologies like cloud computing, big data, artificial intelligence, and growth in mobile data volumes.
The latest update of KaltraSELECT selection software allows customers to calculate the performance data for all Kaltra products, including chillers, air-cooled condensers, air conditioners, and dry coolers. With this, Kaltra offers flexible tools for users to select appropriate products and systems.
Lambda DX/FGB, the latest addition to Kaltra’s IT cooling portfolio, offers flash gas bypass technology for these precision air conditioners, improving the system’s energy efficiency. With more cooling for less space, Lambda DX/FGB delivers accurate temperature and humidity control, whilst contributing to lower energy use.
Kaltra is now offering its Lambda II-M range of modular precision air conditioning units with two cooling circuits as an option to standard units, to further increase overall system redundancy to meet the highest demands for critical IT cooling applications, including colocation and hyperscale data centers.
Cognizant of its environmental stewardship and responsibility, Kaltra advances with low global warming potential solutions for chillers, now releasing R454b versions of its scroll compressor-based models.
Recently introduced chiller family based on Turbocor oil-free compressors and distinguished by high energy efficiency and environmental safety, received falling-film evaporators in addition to flooded models.
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.
The Lightstream Turbo II series is a unique development in the field of demand-responsive chillers, specially designed for variable-load cooling and optimized for the novel lower-GWP refrigerants R1234ze and R513a.
Kaltra has launched its KaltraCONTROL mobile app, providing remote monitoring and management for HVAC equipment over the internet, using almost any mobile device. The app allows review logs produced by Kaltra equipment, receive alerts, analyze and manage energy use, interactively configure operating parameters, schedule unit operation, and more.
Although modern microchannel heat exchangers made from highly corrosion-resistant alloys and able to withstand any type of corrosion, be it galvanic, formicary, or other types, even without any protective coating, there are some harsh conditions under which additional treatment may extend their service life and guarantee trouble-free HVAC equipment operation.
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. Lineup’s capacity ranges from 300 to 1100kW at nominal conditions and demonstrates the same high level of efficiency as previously introduced R452b-based models.
Lightstream Scroll R32 available with the same extensive set of hydronic options, free cooling circuit, safety options, low-noise models, and control software functionality as found in existing Lightstream Scroll chillers running on refrigerants R410a and R452b.
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.
The capacity range has been extended with unit models in the 5-15kW range (equipped with rotary compressors), as well as with top models delivering 125-150kW of cooling.
This week, Kaltra announced its next range of dry coolers based on recently engineered Versa platform. Versa is a shared set of innovative engineering, major components, and production efforts over a number of the distinct, full-size chiller, condenser, and dry cooler ranges. Kaltra’s equipment based on Versa platform characterized by high flexibility, significantly lower manufacturing costs, and enables easy customization and adaptation to the customer-specific application and requirements.
The XL range is a further development of Bora series air-cooled condensers which offer to the customers consistently high performance combined with reduced footprint and low refrigerant charge. Bora XL condensers have been designed to use with both traditional and low-GWP refrigerants, including R134a, R410a, R452b, R513a, R449a and more. The range includes models in the nominal capacity range from 150 to 1850 kW with two available sound level versions: standard low noise and extra low noise.
Following the debut of its water-cooled chillers running on refrigerant R452b this March, Kaltra announces an air-cooled range of chillers with scroll compressors using this low-GWP refrigerant.
Lightstream Scroll R452b chillers will be available in the capacity range from 260 to 1000kW and may be fitted with the highly efficient free cooling system. Other options include partial heat recovery with a desuperheater or full heat recovery, making these chillers a multi-purpose solution for simultaneous, year-round production of chilled and hot water.
Kaltra is now offering low-GWP refrigerant R452b across its Easystream-M range of modular water-cooled chillers with scroll compressors – an environment-friendly alternative to R410a gas with a GWP value as low as 675. R452b is a zeotropic HFO/HFC blend classified as a mildly flammable refrigerant (A2L ASHRAE safety class) which delivers an optimal balance of performance, safety, and compatibility to replace R410a and outperforms other R410a alternatives.
Kaltra, a leading manufacturer of air conditioning and refrigeration equipment, has announced the commercial launch of scroll chillers that expands an existing lineup of condenserless and water-cooled models with air-cooled version.
To meet market requirements to reduce global warming potential and increase the energy efficiency of cooling equipment, Kaltra has engineered a new line of air-cooled condensers with market-leading features at reasonable initial and running costs.
Kaltra continues to move proactively to refrigerants with a lower global warming potential with the introduction of R450a-driven air-cooled chillers.
The chillers feature fixed-speed screw compressor combined with an inverter-driven one. The unit starts with the inverter compressor; when the cooling demand exceeds its capacity, the second compressor starts up at full speed to ensure the best possible efficiency. Capacity regulation is carried out by the inverter-driven compressor.
In response to the rising demand for high-end, energy-efficient cooling solutions, Kaltra has expanded its flagship lineup of Turbocor-based chillers. So far, the customers have been able to pick from the models with the capacity range of up to 1800kW. For increased requirements, Kaltra has added 5- and 6-compressor models to Powerstream Turbo chiller family making it suitable for large commercial and industrial cooling applications with up to 4600kW cooling power per chiller unit. With an ESEER value as high as 10.50 and new control software which optimizes the performance of multi-compressor units, Powerstream Turbo chillers meet the highest demands for energy efficiency at any operating condition.
With different screw compressors, inverter-driven and fixed-speed, Kaltra launched its widest chiller lineup which includes R134a and R1234ze models, 160 in total. Units with R513a refrigerant are available by request. New Lightstream Screw V chillers cover all applications in the capacity range from 200 to 3600kW. In addition to process cooling and air conditioning tasks, the new screw chillers are addressed for mission-critical applications where the reliability and precise temperature control are the crucial factors.
Kaltra Innovativtechnik starts production of its Tramontana unit coolers with a capacity range of up to 60kW. Tramontana units stand out based on consistent performance, wide selection of optional components to tailor the solution to the customers’ requirements, and low installation and maintenance cost.
The power saving potential of the new units is based on the evaporative cooling principle, in which the air temperature drops when the air takes up water by transforming it from liquid to vapor.
As a part of its long-term product development roadmap, Kaltra Innovativtechnik introduces the next generation of its Ultracompact product line. This series covers the cooling duty range between 50 and 300kW with capacity increases of 25kW and provides total or partial heat recovery in compact machine design and suitable for air-cooled applications across many industries.
Among other innovations, Kaltra launches the second generation of its high-capacity in-row cooling solution designed for high power density data centers. With the cooling capacity of 141kW, Lambda In-Row is able to replace up to 4 typical in-row cooling units, saving expensive data center space for server racks.
Lambda In-Row has a new microchannel evaporator combined in V-form with a 41m² total heat transfer surface. With these evaporators, the cooling capacity of the new units increases from 90 kW to 141kW (for water temperatures of 15/21°C and inlet air temperature of 40°C). A special type of manifolds for microchannel heat exchangers provide a uniform water distribution, and at the same time keeps low waterside pressure drop.
Trending Turbocor-based chiller family by Kaltra has been extended with highly efficient models with extra condenser banks, which enable lower condensing temperatures and 15% higher energy efficiency rates (EER) compared to standard Lightstream Turbo models, as well as reduced noise emission level.
Kaltra Innovativtechnik, a German-based provider of innovative thermal management technologies and advanced cooling equipment, is excited to announce the launch of the new lineup of freecooling chillers based on frequency-controlled compact screw compressors and microchannel technology adopted for both condensing and freecooling coils.
Kaltra offers the latest heat transfer technology for electronics cooling, cooling of laser devices, medical appliances, and other small cooling applications with serpentine heat exchangers based on microchannel technology.
German chiller manufacturer, Kaltra Innovativtechnik, is set to showcase its new Easystream family of air- and water-cooled chillers with scroll compressors in March 2017.
New chillers are intended for either indoor or outdoor installation. The series covers the capacity range starting from 40kW and up to 480kW with cooling densities of up to 220kW/m². When used with Mistral condensers/dry coolers, Easystream allows for installation in populated urban areas and anywhere where low noise pollution is a crucial factor.
Kaltra Innovativtechnik begins marketing and selling updated Ultracompact air-cooled chillers. Each chiller model in the Ultracompact range features an aluminium frame and paneling with a 10-year corrosion resistance warranty.
Mistral is the next generation of table-type air-cooled condensers and dry coolers that cover cooling capacities from 5kW up to 1500kW and intended for use with standard refrigerants, ammonia, and carbon dioxide.
One of the cornerstones of Mistral condensers/dry coolers range is the new high efficient heat exchangers with up to 6kW/l performance and reduced refrigerant charge.
Kaltra Innovativtechnik, a Germany-based cooling specialist, today has released the new CNM Series air-cooled condensers intended for use with various HFC and HFO refrigerants. Thank microchannel condenser coils, introduced condensers have a 25% smaller footprint and 20% less weight in comparison to the previous generation. New condensers are equipped with high-performance fans with EC motors as a standard.
Kaltra Innovativtechnik, a Germany-based provider of innovative thermal management technologies and advanced cooling equipment, today released the Lambda DX/DXU family of feature-rich, high-end direct expansion (DX) precision air conditioners with innovative microchannel evaporators and dual refrigerant circuit amongst many of its features.
Kaltra Innovativtechnik, a Germany-based cooling specialist, has launched its chilled water rack-based cooling solution intended for use in high-density data center applications. The development of the In-Rack solution is in response to growing demand for high-density cooling solutions from the data center sector for energy savings and reduction in carbon emissions.
Jumbo Cooler fluid coolers are intended for cooling process water in industrial, commercial, and free cooling applications, and features the benefits of evaporative cooling with water recirculation, thus minimizing energy and water consumption and offer increasing free cooling hours.
Jumbo Cooler units are equipped with evaporative pads wetted via the water distribution system to pre-cool the air before passing through the heat exchanger coils. This increases the amount of heat the air can extract from the coil and, in turn, increases the cooling capacity of the unit.
The efficiency of air-cooled chiller is dictated by the condensing temperature, which may be decreased with increasing heat transfer performance of the condensing coil. Microchannel heat exchangers have become popular in chiller applications due to better thermo-hydraulic characteristics in comparison to conventional finned tube heat exchanger designs. The most straightforward way to improve heat exchanger performance is to increase its face area by combining two microchannel coils in V form.
Evaporative cooling takes advantage of using water for humidification of warm and dry air and leads to significant energy savings in data center applications.
Field tests for evaluating microchannel heat exchangers with variable fin pitch (VFP-MCHE) performance have been started this week. VFP-MCHE design features variable fin pitches and dimensions, tube geometries, port shapes, and the location of fins and tubes within the same heat exchanger core.
Kaltra offers a full range of comprehensive raised floor solutions specifically designed for use in commercial buildings, data centers, clean rooms, and industrial facilities where strength and durability are critical.
The Lightstream Turbo chiller family has been designed with attention to every detail to maximize operational reliability. It is ideally suited to the requirements of mission-critical applications like data centers, telecom facilities and clean rooms, and in every area where reliability is a crucial factor.
Due to its excellent efficiency at part-load conditions, the Lighstream Turbo chiller is a brilliant economy solution for applications where the heat load is not constant or expected to increase.
The cost of mission-critical facility failure is huge and constantly increasing. The standard practice for most cooling facilities provides real-time management and monitoring of critical process equipment, but low tiered equipment is deemed too difficult to monitor. However, these uncontrolled equipment assets may cause a serious cooling process disturbances and loss of efficiency. The best method of equipment failure prevention is to institute a preventive maintenance program.
WHO WE ARE
Kaltra is a customer-focused developer and supplier of reliable, energy efficient thermal management equipment and solutions.
From the professionalism of our research and development engineers to the wide experience of our service team, we are dedicated to delivering you the best service possible.