We want to help you choose the most suitable air cooler and therefore highlight the most popular air coolers in the hit list after selecting a series.

The refrigerant charge is now displayed on the data sheet in the Fluid tile.

We have significantly increased the speed of the thermodynamic calculations. In our tests, the calculation time was halved after clicking on the "Let's go" button, while the calculation accuracy remained the same.
We also conducted icing tests with the MultiRef variants of the V‑evaporators and were able to adjust the minimum permissible temperatures.

We added the accessory “intermediate plates” to the UT/FK calculator. You can select up to 10 intermediate plates in the form "I", "L", "U" or "Z" with a bend length accurate to the millimeter.

The option "Air intake from above" is now available for the DHNI series. This option is free of charge for you. This means that the standard "Air intake from below" and the option "Air intake from above" are identical in price.

The fans' maximum total current and maximum total power consumption are now displayed on the data sheet.
We have also added the fluid icons to the fluid selection buttons.

In addition to the previously introduced MultiRef label and the gray A1 and red A2L/A3 icons, we are introducing new labels and icons for our other product groups: Water and brine air coolers will receive the label and an associated blue icon . CO2 air coolers will receive the label and a green icon .

You can now calculate former air cooler series such as the DLK EurolinePlus, which has been replaced by the DLK Next.

Our customers in Asia can now design asian air cooler series.

You can now download the redesigned data sheet for counter air coolers as a PDF at the touch of a button.

Delivery times have been updated.

We have a new company logo, see top left.

The DHNI series can now be used down to -40 °C.

The influence of the accessories is now displayed on the data sheet. For example, the air throw distance of the fans increases automatically when the accessory "Streamer" is selected.

We have a new accessory. For CO₂ DX evaporators, you can now choose between the standard MOPD 35 bar and a version with a larger MOPD of up to 120 bar after selecting the "EVD ice with E2V, sensors and Ultracap" accessory. There you will also find an explanation of what the MOPD is. Simply move the mouse over "MOPD".
We have also fixed a small bug and reduced the default value of the maximum pressure drop of brine air coolers from 75 kPa to 50 kPa.

Delivery times have been updated.
Furthermore, you can now zoom with two fingers on your mobile device, as you are used to, for example to take a closer look at the technical drawing.

As it is already the case with the static air coolers, the prices of our brine air coolers as well as our evaporators are only displayed to logged-in users.

For the DLK Next, you can now also select the accessory "Drip tray for wall mounting".

You can now recalculate an air cooler under specific thermal conditions.

Our new evaporator series KBKT is now available in EasySelect. Please find more information on our KBKT website.

The combination of corrosion protection D with A2L/A3 refrigerants was not possible for UTs and FKs. However, we have now investigated whether the flow of air through an air cooler protected with corrosion protection D can lead to static charging. Since this is not the case, we can also release corrosion protection D in combination with A2L/A3 refrigerants. Static charging cannot cause the refrigerant to ignite. Please ensure correct earthing during installation.

We have added the minimum and maximum operating temperature of the fans. If you design at very low or very high air temperatures, only the air coolers with permissible fans will be displayed.

Measurements showed that there is no static charge due to the air flowing over the fins. We can therefore approve our V‑evaporators for A2L/A3 refrigerants. Even in the event of a leakage, static charge cannot cause ignition.

We added the refrigerant R508B. You can make your own calculations with it. For calculations at low temperatures down to -88°C, please contact our sales department.

In addition to CO₂, the EasySelect now includes HFC and HFO refrigerants (also A2L/A3).

The air cooler calculation is now much faster. Depending on the thermodynamic specifications (capacity, temperatures...) the calculation time is 30% to 50% shorter.

The EasySelect now recognizes your browser's setting and is displayed in the corresponding language.

We fixed a few bugs that could crash EasySelect under certain conditions.

The electrical data of defrost and air conditioning heating are given on the data sheet.

The work on the evaporator thermodynamics is completed. You can now design CO₂ DX evaporators with the Roller EasySelect. HFC and HFO refrigerants, also A2L/A3, will follow in the next weeks.

If your personal notes contained a line break, the program crashed when creating the data sheet.

Delivery times have been updated.

All available accessories of the brine air coolers can now be selected directly on the data sheet by just a click.

By optimizing the calculation of the cooling capacity of brine air coolers, the speed could be increased by 15 %.

The filename of the PDF data sheet now contains the date of design and the number of circuits in addition to the device name.
Previously: FHV 412 EC.pdf
Now: Roller brine air cooler FHV 412 EC - 3C - 2022-11-15.pdf

The entire EasySelect is now available in French.

The EasySelect is now also fully functional offline.

From now on, EasySelect will automatically inform you when an update is available. With the push of a button you can reload the page and thus work with the current version.

The entire EasySelect is now available in Dutch.

Delivery times have been updated.

You can now add your own notes on the data sheet.

Paste a unique ID in the UT/FK calculator to automatically fill in the input fields. Hover over "Unique ID" to learn more about its composition.

A drawing with the main dimensions of the brine air cooler is now shown on the data sheet.

When entering the data, it is now possible to select the corrosion protection variant "D". The influence on the calculated values, such as the capacity, is taken into account in the thermodynamic calculations.

The entire EasySelect is now available in Spanish.

The entire EasySelect is now available in English.

For the design of brine air coolers, propylene glycol is now available in addition to water and ethylene glycol. Furthermore, fluid data can be entered manually. This means that any medium can be calculated.

An optional special leak test for A2L/A3 refrigerants is available for static air coolers.

The air coolers hit list can now be filtered more quickly by a single series. Right-clicking on the desired series hides all other series.

After the UT/FK calculator already published at the beginning of the year has meanwhile established itself as a standard, brine air coolers are now also available with the new Roller EasySelect. During the design process, all thermodynamic values are calculated according to your inputs such as required capacity, coolant, and temperatures. Try it out right away!
The UT/FK calculator has been integrated into Roller EasySelect.

The new UT/FK calculator for static air coolers price calculation has been published. Design your static air coolers to the millimeter and request a quote at the touch of a button!