Cooling plant

Essential chiller maintenance checklist


Every chiller or chiller plant should be, for the most part, relatively self-reliant. Yet like all heavy machinery, regular preventive maintenance can improve performance, prevent breakdowns, and extend the service life of the equipment. Chillers should be inspected leastwise two times a year if they are only used during the cooling seasons and four times a year in case of continuous operation.

We recommend the following procedures to keep your chiller system at peak performance and avoid unexpected shutdowns and costly downtimes. The below checklist has been compiled to help chiller plant operators conduct detailed and reliable maintenance on air-cooled and water-cooled chillers.

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Modular precision air conditioner

Kaltra introduces modular precision air conditioners


Lambda CW II is the result of an extensive R&D process, with Kaltra utilizing microchannel coil technology to give new ranges their own unique properties for precision cooling.

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CAB furnace

Microchannel heat exchangers: fabrication process


Air-conditioning and refrigeration industries have been evolving rapidly over the past decades. The latest energy efficiency regulations and phase-out of ozone-depleting refrigerants spur further development of air-to-refrigerant heat exchangers, making microchannel heat exchangers the better alternative to conventional heat exchangers for the majority of HVAC manufacturers. Heat transfer technology based on microchannel coils offers the largest potential for improving energy efficiency, reducing refrigerant volumes required,  while also providing a number of other benefits.

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Refrigerant distributor

Optimization of refrigerant distribution for microchannel evaporators


Microchannel heat exchangers have been broadly used in automotive applications due to their advantages of compactness, low weight, and high efficiency. There are numerous heat exchangers designs based on microchannel technology with folded fins and flat tubes which are connected to manifolds. These designs are predominantly used for automotive radiators, condensers, and, more recently, automotive air conditioning evaporators.

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Microchannel condenser bank

Air-cooled condenser assemblies for end-customers and OEMs


Based on recently introduced low-charge microchannel condensers, Kaltra offers high-performance V-shaped condensing coil assemblies intended for use in air-cooled chillers and stand-alone condensers.

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E-coated microchannel coil

High-grade corrosion protection for heat exchangers


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.

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Altmunster office

Kaltra is relocating its activities in Austria to Altmunster


As of January 31st, the main office of Kaltra in Austria will move to a new location in the city of Altmünster, which offers a better infrastructure to assist local customers. Kaltra has been highly active in Austria and surrounding regions since 2017 and expects significant business growth in the next couple of years.

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Microchannel heat exchanger

Kaltra offers coil replacements for condensers and water applications


When you need OEM replacement coils for your refrigeration or cooling system, Kaltra gets you covered with microchannel heat exchangers, matching or exceeding the performance of original coils.

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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. 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.

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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.

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.

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