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Mistral Associates - News December 2022

Did you ever wonder why Trade Advertising costs so much? So did we!
Place your Ads with Mistral for as little as £600/700€ a year!

Photos, animations, videos, scrolling pdf files, trade catalogues, website URL - all accepted.

spacer_transparent.gif A fraction of the cost of traditional Trade magazine charges.

spacer_transparent.gif Reaching at least five times your target market audience.

spacer_transparent.gif Not thrown away at the end of the month. (pulped or incinerated).

spacer_transparent.gif Not noticed just once by target audiences (if at all!).
spacer_transparent.gif Noticed every day. Frequently every minute of every hour of every working day.

spacer_transparent.gif Conveniently, usefully, unobtrusively, professionally, ethically, effectively!

spacer_transparent.gifIgnore this if you wish.    Will your competitors?!

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"I'm interested. Please write to me!"

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waving_penguin.gif Don't leave without saying goodbye! spacer

You might have much to gain by leaving a note.

Mistral Associates - News November 2022

Simpler re-installation for existing Licensees

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Ever mindful of Mistral's constant pursuit of keeping things simple, we have made it even easier for you to update and at the same time upgrade your Mistral software installation.

If you already provided all the information we needed in order to create your Mistral Account then we do not ask you to repeat the procedure. No one likes filling out forms anyway, and, providing your name and Email details match our records, then those are all you need to enter, when you click above, in order to download and install the latest version. Naturally without charge!

Mistral's teams of both programmers and engineers are working together, constantly, every day of the week to keep the vast system up to date, with both unrelenting advances in computing technology and also of course the thousands of databases containing the world's, largest known, single, repository of RAC equipment, interactive data. The latest version is therefore very likely to be today's version!.

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Mistral Associates - News October 2022

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BS EN 378‑3 warning icons have been added to Mistral 'Linewind' and 'Pipewind Pro' refrigerant selection menus.

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Quick link icon for simultaneous input of all Refrigerated Container dimensions, insulation and operating temperatures added to all Mistral 'Corporate' Program Group files.

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No charge update for all Mistral 'Corporate' Licensees:-

A new Corporate Access Registration Code may be required for older installations (4 weeks+) but this will be automatically forwarded when required.

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Mistral Associates - News September 2022

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R454C Refrigerant added to Mistral's 'Linewind' and 'Pipewind Pro' refrigerant pipe sizing programs.

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No charge update for all Mistral 'Corporate' Licensees:-

A new Corporate Access Registration Code may be required for older installations (4 weeks+) but this will be automatically forwarded when required.

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We have added both a simple and quick Psychrometric atmosphere properties calculator, along with a downloadable high quality Psychrometric Chart, to both this website and also to every issue of Mistral RAC Expert System software. An astonishing more than 100 different versions needed so as to properly and respectfully serve the entire world! mistral flags ani

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks+) but this will be automatically forwarded when required.

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In case no one has noticed, it has been quite warm in the
Northern Hemisphere these past couple of months!

Colour matters! Coldwind deals with containers and trucks as well as all types of coldstore.

Scientifically, varying reflectance as a function of surface colour is described under the phenomenon known as albedo factor. Over the total exposed surface area of a standard 40' refrigerated freight container reflectance differences due to colour can account for as much as 20% of the refrigeration load. In the tropics this difference can amount to more than 1kW. Not much perhaps. Until an organisation is supplying equipment and power for 40,000 of them!

Mistral's legendary 'Coldwind Pro' multi-task program. Completing tasks highly accurately in less than two minutes that can take even experienced engineers more than a couple of hours to do manually!
Reduce costs! At the same time improve your competitiveness to WIN more orders!

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Mistral Associates - News August 2022

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bug_42x24.gif bug_42x24.gifBugs happen!

Bugs happen! Any developer pretending they don't is only deluding themselves. However this wasn't so much a bug we just dealt with but more a programming anomaly. An anomaly caused by Microsoft making unnecessary Windows, 'Critical Upgrade', so called 'improvements'. Without warning and without thinking through the consequences! It needed overcoming and improving by us nonetheless.

In common with virtually all user operable PC software, Mistral's programs are launched from a Desktop icon. In Mistral's case clicking on this opens a form on the desktop known as a Program Group. Larger software systems, or Apps as nerds and children like to refer to them these days need them. Again in Mistral's case, we try and make our Program Group forms comprehensive, informative and even entertaining. "All work and no play makes Jack a dull boy" as the saying goes!

In Mistral's larger program compendium the Program Group also includes an 'Always on Top' feature.

Activating 'Always on Top' makes the Mistral Program Group form dominant such that it will always appear visible over the top of any other App running and visible on the Desktop at the same time. Mistral's Program Group form is intentionally kept compact so as to make this feasible; And useful!

It is not unusual for an engineer to be working with many programs at the same time and being able to see a Program Group allowing App launches instantly at all times, and without having to contend with the frequent idiosyncrasies of Microsoft Windows unexpectedly hiding things when you least want it to, is certainly useful.

However, up until now, using 'Always on Top' in some Mistral default Program Group forms meant that the launched App gets concealed behind the Program Group form. Windows had aggravated seeing the simple solution to this by discontinuing showing the App is open on the bottom Tool bar, when the App is running. This following yet another Microsoft unnecessary improvement which did nothing of the sort. If the small icon indicating that the App is actually running as it should then the user would realise all they had to do is slide the Program Group away to left or to right, so as to reveal the open App. One of Windows' improvements defeated this!

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To overcome the problem Mistral now forces an App form to appear slightly to the right of and below the Program Group form. Thereby making it obvious the App has opened as it should. Users then have options of sliding the Program Group form away to one side, or toggling off 'Always on Top', or even closing the Program Group, leaving the selected App still running.

A simple and effective solution? Yes, simple to say it but one which took over a week of program coding work, testing, re-compiling thousands of system files, and server uploading to achieve. At a four figure cost!

download_icon_140x32.gif download_icon_140x32.gif spacer_transparent.gifCorporate, Subscription and Lifetime Licensees may upgrade from here, at no cost:-

Finally, don't forget that all Mistral's larger systems feature switching between its larger, illustrated Program Forms and the ultra compact 'Menu Strip'. This can be dragged and dropped with the Mouse to either the top or bottom of the screen, and thus well clear of any other currently running Apps.

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Mistral Associates - News July 2022

Click!spacer_transparent.gifAir Infiltration Latent loads in cold rooms and freezers.

For reasons that the technical reality of accurate Air Infiltration Latent heat gains into cold rooms, especially freezers, is often not as simple as the basic science might otherwise suggest, Mistral has up until now only ever shown the Total Air Infiltration Load for cold rooms and freezers. In other words the sum of Sensible plus Latent.

A policy applied only to the Coldwind group of programs and not those in the Airwind and Cellwind Groups.

However, following requests from a couple of highly respected, leading RAC contracting companies, Mistral has agreed to reverse this policy, which had been in place for over 30 years. Air Infiltration 'best estimate' of Latent gains will now be shown for both cold rooms (chillers) and freezers, as a separate item.

The coding change is, as always with Mistral, 'backwardly compatible'. Meaning refrigeration calculation load results files, created as far back as the first Windows version release in 1995, can still be opened, edited and re-saved. Even though first releases were 16 bit programs and currently they are 32 bit.

The new release, version 5.2r, will automatically recompute reopened #.cwc files and adjust results accordingly.

download_icon_140x32.gif download_icon_140x32.gif spacer_transparent.gifCorporate, Subscription and Lifetime Licensees may upgrade from here, at no cost:-

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Mistral has ditched its escrow partner (on-line commercial bank) after 27 years. In favour of switching to PayPal.

Although starting off well enough, serving us from 1995, following various take-overs our escrow partner's performance had steadily gone downhill. With ever more frequent yet avoidable outages, clueless and indifferent staff, slow response times, ludicrous new bureaucratic rules, deceptive tax handling and illogical, counter intuitive interfaces, finally forcing our hand.

Distributing sophisticated, large and security controlled Expert Software Systems on-line, throughout the entire world 24/7, is no easy task. Simply purging Mistral's 3,300+ page, multilingual website of deeply entrenched, secure links and support pages to effectively a bank, actually took us over a week. In the meantime we are pleased to say we managed to keep disruption to our customers to an absolute minimum.

We are also pleased to report that switching to PayPal was actually much easier and quicker than we had anticipated. PayPal appear to understand our marketplace role well and were extremely helpful. PayPal also have the advantage that there can be only very few people in the world who have not heard of them, and trust them. Whereas our outgoing escrow partner, although claiming to be the largest of their genre in the world, we now very much doubt.

Mistral's 'Ex' escrow partner management team appeared to us at least to be bearing a grudge against their employers, and thus determined to destroy them! We won't mention their name on these pages but if you wish to know, and are considering signing up an escrow partner for on-line trading yourselves, then please don't hesitate in contacting us to ask. We will be happy to provide you with 'Chapter and Verse' of their shortcomings and failings.

spacer_transparent.gifChris Smith
spacer_transparent.gifManaging Director
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Mistral Associates - News June 2022

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Mistral is pleased to announce that by popular request industry renowned Hemsec insulated panel data has been added to 'Airwind Pro' A/C load calculation, 'Cellwind Pro' Beer & Wine Cellar load calculation, 'Coldwind Pro' Coldroom & Freezer load calculation and 'Prepwind' Food Preparation load calculation program's interactive databases.

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download_icon_140x32.gif download_icon_140x32.gif spacer_transparent.gifCorporate, Subscription and Lifetime Licensees may upgrade from here, at no cost:-

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Especially for all our friends in the Azores, Bermuda, Canaries, Gibraltar, Hawaii, Maldives, La Réunion Island, Singapore and not forgetting others whose countries weren't easy to find on Mistral's interactive program download locator* map. Now you will find it much easier!

We've added a Zoom button.spacer_transparent.gifTry it! spacer_transparent.gif mistral_world_clickmap_block_colour_64x30.gif Zoom x 2

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Mistral values your business just as much as all our friends and customers from all the world's larger conurbations.

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*Mistral Expert System software is 'region specific'. So as to comply with local legislature and building regulations, Operating System varients and many other considerations.

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Mistral Associates - News May 2022

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There are now an astonishing 4,740,768 pre-engineered, Quick Selection calculation files in Mistral's 'Coldwind Pro' multi-lingual, refrigeration load calculation program. It looks more impressive to write this in words rather than figures. Four million, seven hundred
and forty thousand, seven hundred and sixty eight.

Yet these are so neatly 'nested', in tiered menus, that a seasoned program user can quickly 'zero in' and open one in around seven seconds. And the calculation files are all still fully user editable. Also protected by the same rigourous Mistral, 'Dynamic Error Trapping' system. Expand! arrow_up_green_icon.gif

Click here to order a Mistral 'Corporate' Licence right now.
Start saving time, reducing costs and winning more orders today!

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Mistral Associates - News April 2022

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Back in 1984, thirty eight years ago, when the urgent need for intelligent, logical and intuitive 'Expert System' software for our industry became blindingly apparent, Mistral was formed by a small group of industry peers to meet that need.

Mistral's 'Mission Statement' at that time, now described as 'Mistral's Commitment', to use a much hackneyed expression but nonetheless still as relevant today as it was then, is:-

"Bringing the benefits of computerisation to our industry - without the historically associated problems."

What was not immediately apparent then, not even to the founding partners, was just how vast that objective would turn out to be. Saying "Heat load calculation." Takes but a second. However it took another five years intensive research, input and effort, more often than not totally unpaid, before the founders were satisfied they had a viable, safe and marketable software product. No one can deny it was an instant success. The fact that more engineering professionals across the entire globe rely upon Mistral's RAC Application Engineering systems than all other systems since offered (and disappeared!) than any other, even when all others are added together, is testament to that!

However, complacency is not a state of mind that exists amongst Mistral's highly qualified and experienced team members. Many of whom have been part of that team from the very beginning. All past our 'use by date' as is gleefully bandied around our offices.

As founding Director I cannot recall one single day, 365 days of the year, vacations or not (usually not!), when someone, somewhere in Mistral's team hasn't been working around the clock improving something or adding something so as to make our friends in our industry's lives that little bit better. Not one, single, day!

If you've got this far then maybe you are wondering what it is we are about to say. Thank you for waiting patiently!

Mistral's programs are so vast they often practically run themselves. Frequently doing so in seconds, completing tasks with razor sharp accuracy that used to take seasoned RAC engineers hours, or even days, of repetitively boring but essential number crunching work. Many features, functions and capabilities though are missed or go unnoticed. Particularly those features that are rarely needed. Mistral are therefore addressing that situation. Simply by enhancing the existing focused, multi-thousand page Help system, the automated cue card advice system and last but not least the essential 'dynamic, Error Trapping' systems.

Just because an experienced engineer can do it manually, with tables and a calculator, does not mean they wish to spend hundreds of times more of that amount of time doing it!

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From April users will see simple, plain language automatic hints which relate to whatever or wherever they are in a Mistral program at that time. In whatever language the user has chosen for their current session. Not in the form of drop down forms that annoyingly require closing just so as to continue, as happens in so much appallingly badly produced software, and particularly in web pages, today.

Even 38 years later, sadly still so few software developers can even scratch the surface of Mistral's achievement in producing easy to use, intuitive, fast and totally reliable software!

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Cost to Mistral of creating 120 new, multi-lingual, program cue cards. Coding, compiling, proving, incorporating and uploading to servers: 620 Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks +) but this will be automatically forwarded when required.

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Mistral Associates - News March 2022

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And the winner of February's 'Find the Cheeky Mouse' competition is:-

A Refrigeration and Air Conditioning equipment distribution company in Sweden.

Click here cheeky_mouse.gif to see where the lucky winners found Cheeky Mouse!



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This might come as a surprise to many but in order to meet the demands of Mistral's more than 25,000 registered users across the entire planet the company distributes over 200 versions or tailored variants.

These are needed to meet a plethora of challenges Expert System software developers serving a global market have to face. From computer Operating System (Windows) variants to language and national region differences, keyboard and monitor types, meteorology, local legislative requirements, even which decimal point deliminator is in use, comma or period.

Most of these variations, around 170, can be controlled through the 24 character alpha-numeric Access Registration Code. Even with Mistral's courtesy of omitting potentially confusing characters such as O and 0 and 1, I and l for example, the permutations run into trillions. Infinity for all practical purposes. Therefore a Mistral program will already be set to use decimal commas in Spain for example, instead of period or full stop as in the United Kingdom. All without installers having to make further adjustments.

However around 30 out of Mistral's more than 200 'products' do require completely separate program file compendium.

Why is this important to mention here? Well apart from reminding hopeful but naive imitators and plagiarists they will be facing over three decades of research and development by highly qualified engineers and programmers working together as a team just to reach Mistral's standards this explains why Mistral urges downloaders to ensure they select the right download and Access Code form on Mistral's website.

Mistral tries to make this exercise as simple and trouble free as possible. By use of interactive 'clickable' world maps for example. Downloaders are urged to click on these maps on the region corresponding with their location. The web page which follows should then be the right one for taking them to their download button.

flag_dk.gifKlik på kort svarende til hvor du er.
flag_de.gifKlicken Sie auf die Karte, um uns mitzuteilen.
flag_uk.gifClick on map corresponding to where you are.
flag_es.gifHaga clic en el mapa para decirnos dónde se encuentra.
flag_fr.gifCliquez sur la carte pour nous dire où vous êtes.

flag_it.gifClicca sulla mappa per dirci dove ti trovi.
flag_nl.gifKlik op de kaart om ons te vertellen waar u zich bevindt.
flag_pl.gifKliknij mapę, aby powiedzieć nam, gdzie jesteś.
flag_po.gifClique no mapa para nos dizer onde você está.
flag_se.gifKlicka på kartan för att berätta var du är.

A problem arises though where a licensee from say Cambridge, UK clicks on the world map over the USA, aware that English language form completion and program operation will be offered, yet unaware English USA is not the same as English International.

Furthermore, Mistral's multi-lingual and language switchable programs, switchable even after installation may be offered in the same language for many world regions. English, French, Spanish and Portuguese, often in conjunction with other languages are offered throughout the world for example. But this does not mean the programs and interactive databases are identical.

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Finally, Mistral tries to answer every licensee who contacts by Email within minutes. However Mistral as an international provider naturally receives hundreds of Emails every day. Sometimes delays are inevitable and also can be aggravated by inexplicable international routing delays, over which Mistral obviously has no control. Mistral's staff therefore do not find it amusing when someone runs into problems installing and after spending twenty minutes or so trying to sort the problem out only to discover that a person in Harrogate, United Kingdom thought it 'funny' to click first upon Sweden and then upon English as preferred language. Swedes speak English too! The program variant Swedes receive though when downloading will have been tailored to operate in Norrköping, Sweden and not Harrogate in North Yorkshire!

Mistral's staff are not noted for becoming violent but such antics do increase the risk!



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Mistral Associates - News February 2022


mistral_mouse.gif The first person to find Mistral's cheeky, hiding Mouse on this website will win a Free Corporate Program Compendium Access Licence for a whole year.

Prize value UK£395, approximately 475 Euros or US$530.

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Your name: required
email: required
Company (or none): required
Country: required
Company Web Page: optional

I found the cheeky hiding Mouse on Mistral's web page titled*:-
*(Web page title means the text name preceding the HTML file extension)

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Current Mistral 'Corporate' Licence Account holders are welcome to participate and if successful the prize value will be credited against their present account in part payment for larger accounts with a greater value.

Neither the winner's name nor their company name will be published.
Competition closes on 28 February 2022.



And the winner is:-

A Refrigeration and Air Conditioning equipment distribution company in Sweden.

Click here cheeky_mouse.gif to see where the lucky winners found Cheeky Mouse!



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facebook_barred_logo twitter_barred_logo linkedin_barred_logo Mistral have never used Facebook, Twitter or LinkedIn, etc., and never will.

This website DOES NOT USE COOKIES! Click to read Mistral's policy


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Mistral Associates - News January 2022


No one likes reading instructions!
No matter how simple they are!

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With registered licensees (program users) in 140 countries world-wide then naturally Mistral expects to receive thousands of Email messages every week. Just as naturally Mistral endeavours to keep its operating costs down to the minimum possible consistent with providing a first rate product and service.

There have to be rules though. It would be unfair asking users to pay annual licence fees and without which Mistral could not possible provide its first class products and service if others are allowed to cheat and steal access to the valuable software resource. At the expense of those paying for it!

But people are only human and people make mistakes. Making a mistake installing will result in an Error message and this will explain what went wrong and the simple solution to rectify it. Up until now though this has required the installer to click on a button reading Error Codes to read the explanation of an Error Code number. For example Error #904.

It would appear though that many people would prefer to write an Email and send it to Mistral instead, asking for the explanation. Therefore, and so as to avoid the need to employ more staff and which all licensees would be expected to meet the costs of doing so, the Error Codes, some of which are automatically digitally generated by the user's computer Microsoft Windows Operating System, are now translated and displayed automatically. Obviating the need for anyone to have to click on a button, let alone take out time to write a long Email request.

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Mistral Associates - News December 2021


Exciting new development for Mistral's 'COLDWIND Pro' Licensees.

Annual Electricity Power running cost estimates are now automatically calculated for 'COLDWIND Pro' projects. Both for individual spaces or for unlimited multiple room projects.

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"Mistral will not be accused of Greenwashing!” Claims Chris Smith, Mistral’s founding director of the 1984 established leading RAC Application Engineering software developers.

"However it must be obvious that more accurate and safe energy load calculation, now in use throughout the entire world, must have saved billions over decades in both energy costs and also of course the corresponding CO2 emissions. So I suppose some might say that is a Greenwash statement.”

Now though Mistral launches one of the most important adjuncts to its easy to use yet highly sophisticated, multi-lingual software systems. Both A/C and Refrigeration load calculations now automatically generate detailed electrical power consumption cost estimates for any project. All at a single click of a button.

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Changing something like a cold room or freezer wall panel thickness, or indeed a utility provider, will instantly show up the effect of that change. For both the Design Engineer and importantly also for their client.

Available as a no charge program upgrade on request for all Mistral Corporate and Subscription Licensed users world-wide from December 12 2021.

As always, Mistral's 'Corporate' and 'Subscription' Licensees will be automatically upgraded upon demand or anyway later at scheduled reinstallations, without incurring any additional charges.

Release date is scheduled for December 12 2021. For earliest possible upgrade make a note to return to this page at that time for instant download and simple installation instructions.




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Mistral Associates - News November 2021


FREE Windows 11 Upgrades for 'Cellwind Pro' and 'Linewind' Licensees.

In one, single combined Setup.exe download file.

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cellwind_fe_ani.gif 'Cellwind Pro' Produces accurate and therefore competitive beer cellar refrigeration load calculations to brewery specifications. Copes with any shape room plan, any type of building construction (including mixed materials), cellars above ground and below (or anywhere in between for that matter), solar gains, product loads and pull down times, running loads, cooler fan loads etc., etc. All built into the program and easy to enter. Neat, comprehensive printout for your records and tenders.

Links to comprehensive and manufacturer verified databases to automatically select optimum refrigeration equipment and cellar cooling systems.

Accurately compute the duty then automatically select optimum cooling equipment from your chosen distributor. Finally, producing professional quality, illustrated, printed quotations - all in seconds!

Trying to remain competitive in this notoriously difficult market isn't difficult without 'Cellwind Pro', it's almost impossible! Now bundled with FREE pipe sizing program.



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Mistral Associates - News October 2021


Mistral are pleased to announce Windows 11
compatible versions of all programs.

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Following many weeks prior to Windows 11 launch, Mistral's version 5.2j Beta is ready. Having undergone many hundreds of hours of exhaustive 'stress testing'.

As with all Mistral software introduced over the past thirty years this latest version is backwardly compatible with your old, saved load calculation, RAC equipment selection and refrigerant pipe sizing results files. In other words the latest version will still allow you to open and edit files up to 30 year old and to re-save them. A quality feature that very, very few other software developers can claim. Not even Microsoft Corporation themselves. Actually especially not Microsoft Corporation!

No new Access Registration Code should be necessary to over-write existing, currently active installations. However you will automatically be forwarded one if we think it may be necessary. Upgrading can be made to any PC not yet running Windows 11 (I.e. Still running Windows 10 Operating Systems) and your saved files are guaranteed to still be available and found automatically by this latest version.

As for the merits or otherwise of Microsoft's latest offering we make no comment other than to say that for the most part changes appear to be mainly cosmetic. Behind the scenes though we do hope many of Windows 10's shortcomings have been addressed. In particular the tiresome need to install intrusive, time consuming and confusing 'Critical Updates' every couple of weeks or so. So as to repair who knows what?

Mistral 'Corporate' and 'Subscription' licensees may download immediately and free of charge as usual, here:- Registration

If you are unable to find your unique Mistral Account Number then don't worry. You may use the Provisional Account Number displayed on the download request form and which will provide you with immediate access. Your Mistral Account Number will be forwarded to you within a couple of days.



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Mistral Associates - News September 2021


Mistral adds App tool for RAC Product Database creation

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Mistral’s Treedb database editor, is now included with all Mistral program compendium.

Treedb creates and manages Refrigeration & Air Conditioning Equipment databases. It is a powerful professional developer’s tool, supplied freely to provide Mistral program users the facility to create their own RAC Equipment selection databases. Instructions and even ready made templates are provided.

Click here treedb_icon.gifTreedb to learn more.



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Mistral Associates - News August 2021


Mistral adds new range of unit coolers from Karyer Heat Exchangers

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Part of leading Turkish manufacturers Karyer Heat Exchanger's vast range of high quality cold room and freezer room unit coolers and dual discharge coolers.

Offering precise matches for every conceivable room application. Durable, powder coated, galvanised steel casings. Practical and exceptionally good value.



Set of 63 databases, joining more than 17,000 interactive databases in Mistral's complete systems, were sponsored by Hawco Refrigeration of Godalming, Surrey, UK.
Tel Sales: O1483 8691OO

Cost to Mistral of processing, compiling, proving and incorporating these 63 new interactive unit cooler selection databases: 3,800 Euros.


No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.

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Mistral Associates - News July 2021


Sometimes it's the little things that make all the difference.

Thankfully Mistral receives very few complaints. A record of which we are naturally very proud. However if and when we receive a criticism, no matter how seemingly trivial, then we take notice and we do something about it. One such criticism, more of an observation really, was that one or two of our valued program licensees were asking us when they could re-install using their update and upgrade entitlement. The answer of course is that 'Corporate' account licensees can re-install at any time during their active licence period. The important thing though is that they should always do so using a current program compendium Setup file. So, to make things easier Mistral has added a 'Re-registration' button to every Program Group form which points directly to Mistral's 'Corporate' download webpage.

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This icon has always been present on the Program Group 'Menu' form but many users are unaware that this menu form even exists. It is after all not obligatory to enter it and if everything is anyway working satisfactorily then people may be unlikely to go looking for it.

Adding the 'Re-registration' button to every Program Group form is just a little change in detail. Little details that Mistral takes care of are though part of the reason Mistral software sets a benchmark that not just RAC software developers aspire to but which ALL software developers try to reach!

This addition will be rolled out in all regional versions of 'Corporate' compendium over the course of July.


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Mistral Associates - News June 2021

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Mistral's final CD-ROM from April 2017.

Another milestone for Mistral was reached at the end of May when our Server Logs recorded over 100,000 successful program downloads over the previous 12 months. An average of almost 280 per day and even more exciting, current downloads now hitting an average of more than 350 per day. Thus putting Mistral on target for at least 130,000 copies by this time next year.

July 1994 saw Mistral's first website, a decade after the company was launched. The following year Mistral's first Windows based programs 'Airwind' and 'Coldwind' already distributed on CD-ROM were also made available for download. With a total of fewer than one hundred copies downloaded in the following 12 months. Mistral continued to distribute its world class products globally on CD-ROM until 30 April 2017 and when approximately 33,000 were produced in their final year.

None of the above numbers are huge in today's gargantuan IT industry. However in the niche market industry of commercial Refrigeration and Air Conditioning they certainly are. Very few people in RAC firms, teaching establishments and government bodies Mistral serves in 140 countries in the world will not have heard of Mistral Expert System Software!


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Mistral Associates - News May 2021

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Special promotion offer for month of May

Cellwind Pro. Single User Lifetime Licence. £95 (116 Euros US$134)
spacer_transparent.gifCurrently bundled with FREE copies of 'Linewind' and 'Metwind'. (Limited time offer)

Order a copy of 'CELLWIND Pro’ during the month of May and receive a classically famous
Murano 'originale Corkscrew! FREE

murano_originale_ani.gif

'CELLWIND Pro’ Produce accurate and thus competitive beer & wine cellar refrigeration load calculations to brewery specifications. Copes with any shape room plan, various building constructions (including mixed materials), cellars above ground and below (or anywhere in between for that matter), solar gains, product loads and pull down times, running loads, cooler fan loads etc., etc. All built into the program and easy to enter. Neatly laid out, comprehensive printed summary for your records and tenders.

Includes Unit cooler, Condenser, Condensing Unit, Compressor, Packaged Refrigeration, Refrigerant Expansion Valve and Split A/C selection programs with data supplied by leading manufacturers such as Copeland, Danfoss, Dorin, Kelvion Searle, Kobol, Küba Kältetechnik, L'Unite Hermetique, Lu-Ve Contardo, ManEurop, Marstair, Roller, Samsung, Sporlan, Trenton, and others. Struggling with elusive correction factors and selections methods that vary from one manufacturer to another is a problem of the past. Selects from tens of 1,000's of listed products, shows all viable alternatives complete with precise corrected duties - all in less than 10 seconds ! Select against 'CELLWIND' calculations or may be run independently.

Lifetime Licence £95 (116* Euros US$134* * May be subject to exchange rate variation on the day)
murano_corkscrew_36x32.gif Not only Mistral understands perfection - Murano 'originale' corkscrew. A design masterpiece.


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Mistral now in Danish
Klik for dansk oversættelse.


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No easy task! Hundreds of thousands of words, sometimes including unavoidable industry jargon and colloquialism, in phrases frequently created 'on the fly', using sophisticated text string concatenation algorithms; often with added 'dynamic' data included. All in the grammatically correct places of course!

Apart from the hundreds of pages of program form text there are all the supporting documents too. Dynamically linked and 'focused' Help pages, hints, cue cards and error messages, database fields and installation instructions.

And no, it isn't a simple Google Traduction exercise! It is a time consuming and very expensive process absorbing months of highly skilled work.

This first release is at the Beta testing stage. There will be errors! Regrettable but unavoidable. When you find a spelling mistake or a grammatical error or even a phrase or word completly failing to translate (from core program Enlish language operation) then please return the courtesy and let us know. In clear, unemotional terms and naturally, including a verifiable correction. We will act upon your advice immediately.

Tell us what you found here. Importantly; tell us how to correct it.


ten_ani.gif


No charge update for all Mistral 'Corporate' Licensees:- Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News April 2021


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Click!

Even we have to admit it. Not only is the pen mightier than the sword, on occasions it can be even mightier than the computer! Well if not mightier then certainly quite convenient!

mistral_survey_documents.gif Two sheets of paper and a ballpoint pen pulled out of your briefcase at a site meeting can prevent huge headaches when you get back to your office.

All the pertinent questions that need answering to help quickly prepare a professional and accurate scheme for your prospect - already prepared.

Now available in ten languages. flag_9_col_strip.gif



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Mistral Associates - News March 2021


It barely seems possible that it is 30 years since, in March 1991, Mistral released 'Coldwind'. Mistral's first Windows 'Expert System' software version.

cw_pro.gif Based upon its DOS predecessor 'Coldroom' which started life in 1984, 'Coldwind' came with an advanced Graphical User Interface with multiple 'sub-routines', revolving around a single, icon and menu driven main form, along with an astonishingly flexible 'Drag & Drop' and simple to use room design plan ideogram.
arrow_left_icon.gif ..Click


Fully 'Dynamically Error Trapped' to automatically identify and eliminate user scientific or technical input errors it was, and to a great extent still is, unique in the software genre that Mistral alone was responsible for creating.

Marketed at the time with an admittedly somewhat unwieldy introduction:-

* * *

'Coldwind' copes with coldroom and freezer designs with any number of rooms, built with any number of wall surfaces with any mix of insulating materials, arranged at any angles to one another, containing any commonly stored food product or mix of products, introduced at any realistic practical temperatures and to meet any commercially acceptable design temperature conditions. Located anywhere on planet Earth and for every hour and day of the year.

* * *

All without program users requiring any external information or tables. 'Coldwind' is also instantly switchable between Imperial and SI (Systeme Internationale or metric) units of measurement at any time.

Fundamentally, and an enormous fundamental at that, 'Coldwind' doesn't just save its calculation results, which incidentally it automatically exports to thousands of interactive RAC equipment databases, but it also saves every key press and menu selection which went into creating that guaranteed accurate result. Meaning a calculation file can be retrieved an hour, a day, a week, a month, a year or even a decade later and still be edited, copied, and resaved if needs be.

Thirty years on and now supplied with over four million, industry standard 'Pre-engineered' designs selectable from simple cascading menus in under 10 seconds. Along with instant translation into 10 different languages.

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'Coldwind Pro' version will also cope with refrigerated trucks and containers, including airfreight cargo containers, blast freezers and blast chillers, agricultural produce stores and food 'Preprooms'.

Dynamically linked and focused multi-lingual Help Pages. Intelligent logic program navigation to eliminate redundant input or questions. No previous computer experience whatsoever required prior to use. Automatic 'plain language' End User sales presentation quality printed reports.

A multi tens of million Euro and continuously ongoing software development. Widely accepted across the world as the RAC industry standard program and the one against which all its subsequent imitations are measured. Available for RAC Professionals from as little as a few Cents or Pence per day.

Still unmatched today from anywhere in the world. Unassailable.

Officially Code Signed for your security by Microsoft. Naturally! code_signed_icon_45x64.gif


mistral back crawlertop of page


Mistral Associates - News February 2021


legal_wig.gif Mistral strengthens its campaign against Cookies spacer no_cookies_icon.gif
Cookies invade privacy and restrict your freedom to choose. Click to read more. software_pirate.gif




The world's possibly only dedicated Beer and Wine Cellar cooling and heating load calculation program just got even better.


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Click image for more details

Now multilingual and with more refrigeration manufacturers' packaged cellar cooling systems offered for instant selection.

Running simultaneously in both Imerial and SI (metric) units, above and below ground cellars (or anywhere in between), thousands of pre-engineered 'Quick Selection' designs selectable in just seconds, all editable to match real life situations.

Presentation quality summaries written in a form that customers and prospects can understand printed instantly. Impressing upon them they are dealing with a professional organisation. Helping also to confirm project specifications and so avoid post installation disputes.

Trying to remain competitive in this notoriously difficult market without 'Cellwind Pro' isn't just difficult. It's almost impossible!



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Mistral Associates - News January 2021


Pfizer Covid-19 vaccine storage at -70ºC/-94ºF.

All Mistral programs are uniquely 'dynamically' error trapped through an enormous and extraordinarily sophisticated set of algorithms that are developed to adapt to a developing design whilst it is in progress. This simply to protect users making inevitable input mistakes and of which no one is immune. An accidental overestimate of a design and estimate at time of tender can cost a company gaining a contract. A far worse situation is where an unnoticed underestimate at time of tender on a large project and resulting in an installation doomed never to work can destroy a company! THAT is the reason for 'dynamically' error trapping!

Part of this error trapping involves preventing input of design operating temperatures below -40ºC/-40ºF. Design temperatures below this involve significant and dangerous health risks, require a greater level of skill to execute and also access to specialised refrigeration equipment and its commissioning.

These though are exceptional times and we are asked how to get 'Coldwind Pro' to accept freezer room design temperatures down to -70ºC/-94ºF. The temperature at which the Pfizer Covid-19 vaccine must be stored following dispatch from production facilities until shortly before application.

Mistral has provided a simple solution and one whereby its requirement of special user intervention reduces the risk of the solution leading to poor diligence in engineering.

A system of Special Features Codes can be applied to both 'Airwind Pro' and 'Coldwind Pro' programs which allow relaxation of parts of Mistral's Dynamic Error Trapping System.

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Click on 'Options' on the programs' top menu bar and then on 'Customise'

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Click on 'General'

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Click on 'Advanced'

For example. Allow 'Coldwind Pro' to accept room design temperatures down to -99ºC/-146ºF enter MIRF in the box provided.

Descriptions of special program features that have been added will appear in the Features activated box.

To delete special program features (thus reverting the program to its standard operating mode) simply highlight the feature in the Features activated box and then click on Remove Feature.

More can be read about Special Feature Codes here: Special Features Codes

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Mistral Associates is pleased to report that its Microsoft Windows Code Signed Certificate has been extend to 31 December 2023.

Important because Code Signed computer software is effectively guaranteed not to have been tampered with since being compiled by approved developers such as Mistral Associates, therefore virus free and safe to install.

Official proof of Code Signing is displayed as Mistral programs check on-line for active security validity at time of installation. All part of the unique, exceptional care Mistral takes for the security of valued customers with Mistral's sophisticated and 'State of the Art' Access Registration Code security system.

Naturally Mistral will continue its ongoing and daily function of continuous, professional software development. Therefore fully anticipating a further three year Code Signed Certificate extension at the end of 2023.



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Mistral Associates - News December 2020

Enhanced Security - For your security.

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Click Credit Card to see it in action!

In late September 2020 Mistral instigated a system of totally automatic issue of product Access Registration Codes. Following almost a year of coding and testing the new system.

Just as a reminder these Access Codes are essential in helping to prevent commercially sensitive data falling into the wrong hands. Thereby the codes helping to protect the vested interests of Mistral's sponsors. Also in preventing Mistral's market place being compromised (and thus Mistral destroyed) by hackers and pirates (intellectual property thieves).

Up until this time Access Registration Code issue was conducted by manual Access Code generation and then Email forwarding. A process taking on average 5 minutes for each legitimate downloader and a similar amount for politely rejecting none authorised opportunists along with pirates (thieves). This amount of time for each of around 150 downloads per day, 7 days a week to all 140 countries in the world Mistral serves. Further aggravated by a small percentage of downloaders doggedly refusing to read even the most childishly simple to understand of instructions. Such as: 'Do not attempt to use a 'one time only use to install code' more than once. 'Use one time only' means exactly that!' Also: 'Do not pass your unique Access Code to others.' Unless perhaps you are in the habit of giving your Credit Card number to everyone else on the planet at the same time!!!

The automated process introduced in September thus saving Mistral around 100,000 Euros per annum in avoidable staff costs.

The automated process involves staff of registered users (Mistral Account holders) and other entitled, qualified users entering their company's unique and permanent Account Number into the relevant download request forms. There are around fifty of these forms, depending upon the sponsor's automatically entered account number or the Mistral Licensee's entitled product access. Now each download and code request is met within seconds, subject only to rare Email routing delay issues over which naturally Mistral has no control.

The codes are 'associated', that is linked by algorithm within each code to the download obtained at the same time. Thus further enhancing security.

The codes are issued digitally following automated, sophisticated 'checking and balancing' of legal entitlement. Some of these processes a closely guarded company secret. Thus even further enhancing security for EVERYONE trading legally in our RAC industry!

Since introduction of the system it has further reduced losses through piracy (theft) by an estimated 10 to 15 thousand Euros* in just 12 weeks! A significant amount for a relatively small company like Mistral and with almost zero 'Cost of Sales' I.e. Turnover covering 95% of operating costs with the remaining 5% being net pre-tax profit.

As far as we are aware Mistral was the very first back in 1984 to publish independently audited RAC Application Engineering Expert System Software. Since that time others have tried and Mistral has also suffered many scores of imitators over the following 38 years. All bar two of which have eventually failed and given up. It's a tough, tough business to be in!

* Difficult to measure precisely due to the Pandemic creating a difficult trading year for both Mistral and our valued customers.



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New Mistral 'Corporate' Program Group images for 2021,
along with better controls.

What have these to do with Commercial Refrigeration and Air Conditioning?

Answer: Absolutely nothing.

mistral_corproate_program_group_ani.gif

Click animation to upgrade to 2021 version.

Except maybe to cheer everyone up, even if only just a little, after a frankly terrifying year. Over one hundred 'Program Group' form images, almost all of them newly created and by volunteers and trainees. A dozen of the 'old favourites' retained because we have been cheerfully forbidden to ever remove them! For the simple purpose of amusement and relieving tedium, without detracting at all from the serious business of helping support the production, storage, distribution and retailing of the world's food. Along with making otherwise uninhabitable buildings, especially workplaces and hospitals etc., habitable.

Undeniably pretty important stuff and responsible for over 20% of the world's energy consumption. Happily reduced due to implementation of Mistral's world leading RAC Expert System Software. So, you and us, we deserve a bit of levity occasionally.

Whilst putting this well established Mistral adjunct to our systems together we did notice the controls for it could be simplified and also made a bit more logical. So we did that too.


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Mistral Associates - News November 2020


In light of Pfizer's landmark COVID-19 vaccine announcement it appears there will be an urgent need for ultra low temperature refrigeration facilities across the entire world. Pfizer's new vaccine cannot be exposed for too long or for many times to temperatures above -70°C. The logistics of achieving these facilities in critically short time will be huge.

Under normal circumstances the minimum design temperature for Mistral's leading 'Coldwind Pro' refrigeration load calculation and integrated RAC equipment selection software is -40°C. However this is set purely as a part of the software's enormous and completely unique 'Dynamic Error Trapping' system. This is designed to protect users against inadvertent input mistakes which could lead to not just scientific results anomalies but also take results outside of established, accepted industry design standards and even regional local legislation. A system, again which is unique, and also one which was incredibly expensive to research, design and integrate into the Expert System Coding.

As all Mistral programs resolve all data, both keyboard input and through internal algorithm to scientific first principles this does mean that theoretically at least 'Coldwind Pro' could accurately compute to design temperatures down to Absolute Zero (0 Kelvin).

Design temperatures of -70°C therefore present no technical problems for 'Coldwind Pro'. Mistral is therefore offering any party with a directly related and legitimate need for a program that can design storage facilities down to -70°C to request access entirely free of charge. Simply click here:- Feedback to state your interest and we will revert as quickly as we are able.

Finally, this is similar to an offer made by Mistral back in March and which was related to the then emerging crisis. For those socially inadequate and harbouring mental issues leading to attacks upon Mistral as being 'opportunistic' then either put your effort into offering something better by assembling a similar team of leading, highly qualified engineers and programmers to cram a thirty six year, multi-million Euro software investment into just a few short days, or, perhaps even better still, seek urgent professional psychiatric help!

Chris Smith
Managing Director
Mistral Associates



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Mistral Associates - News October 2020


Mistral's Expert System software is clearly a valuable resource. At Mistral we know that. Not just because of what it costs us to develop and constantly, on a daily basis to maintain, but because almost every valued customer who has ever chosen to reward us with their licence order and therefore their trust, has continued to support us to this day.

We value that trust along with the contribution to our eye-watering costs in maintaining this unique system and we are determined not to let competitors to our loyal customers gain access at their expense. Hence the need for a sophisticated access security system.

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Mistral's security systems are not dissimilar to those used by banks. And we all know about those. They aren't all that reliable. However there ends the similarity.

Mistral's systems are reliable. Although clever software algorithms identify and separate our honest, licence fee paying customers from the chancers and the cheaters, the final sanction to grant access must be performed manually. By our dedicated team and who make it their job to know who our customers are. That way we get it right 99.99% of the time and only issue access codes to those who are entitled to them.

The flaw in this though is that it takes time. Also, up until now we have been reactive rather than proactive in the way we perform essential manual checks. In other words we check entitlement after we are effectively asked to do so. Things are about to change though. Mistral will no longer wait until you ask to download our latest software and interactive databases. In future we will anticipate that you will do so and we will put all the necessary switches, checks and balances into place even before you ask. This will be based upon your previous download history, or, if you are a new customer, then upon the moment our commercial bankers confirm receipt of your first payment to us. This means that when you or your colleagues do request a download, at any time, then there will be no waiting time for access registration codes to be forwarded to you.

Obviously we cannot overcome any delays created by occasional email routing issues but thankfully these are rare. What it will mean though is that if you are located in a different time zone to our staff, who incidentally are based in three continents across the planet, then it will make no difference. You should receive the access registration code that you are entitled to almost instantly.

Even your 'favourite' bank is unlikely to be able to match that!

flag_dk.gifKlik på kort svarende til hvor du er. Så vi kan sende dig de rigtige programmer til din region.
flag_de.gifKlicken Sie auf die Karte, um uns mitzuteilen, wo Sie sich befinden. So erhalten Sie die richtigen Programme.
flag_uk.gifClick on map corresponding to where you are. So we can send you the right programs for your region.
flag_es.gifHaga clic en el mapa para decirnos dónde se encuentra. Entonces recibe los programas adecuados para su región.
flag_fr.gifCliquez sur la carte pour nous dire où vous êtes. Ainsi, vous recevez les bons programmes pour votre région.

flag_it.gifClicca sulla mappa per dirci dove ti trovi. Quindi ricevi i programmi giusti per la tua regione.
flag_nl.gifKlik op de kaart om ons te vertellen waar u zich bevindt. U ontvangt dus de juiste programma's voor uw regio.
flag_pl.gifKliknij mapę, aby powiedzieć nam, gdzie jesteś. Otrzymujesz więc programy odpowiednie dla swojego regionu.
flag_po.gifClique no mapa para nos dizer onde você está. Assim, você recebe os programas certos para sua região.
flag_se.gifKlicka på kartan för att berätta var du är. Så du får rätt program för din region.



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Mistral Associates - News September 2020


New R744 Unit Cooler selection data

Selection data for Lu-Ve Contardo's R744 unit cooler model ranges added.

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No charge update for all Mistral 'Corporate' Licensees:- Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News August 2020


New R744 Condensing Unit selection data

Condensing Unit selection data for Panasonic's MT medium back pressure and LT low pressure models added.

pan9801a.gifpan9802a.gif

Panasonic MT(4kW)Panasonic MT(16kW)


No charge update for all Mistral 'Corporate' Licensees:- Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News July 2020


Coming soon!

Dual Compartment Cold Rooms added to Mistral's legendary four million plus 'Pre-engineered' Quick Selection Cold Room designs.

For Mistral's 'Coldwind Pro' program licensees world-wide. Running simultaneously in Imperial/SI and simultaneously in ten languages.

set_partition_wall_position.gif

Various Grid size options, insulation panel, room height, stored product, temperature options. Unrestricted partition position. Quick selections up to 10 metres x 6 metres (overall Coldwind Pro room designer room plan limit 100 metres x 100 metres, in standard form). Internal or external dimension program operation. Unlimited number of rooms/walls, any angles. For further details including industry standard and leading 'Specifier' specifications, licensees are advised to contact Mistral or refer to updated, dynamically linked and focused program Help pages.

Adding another million plus pre-engineered, 'Industry Standard' fully interactive files. Each selectable in under 15 seconds and with fewer than a dozen button clicks.

The Fastest Dual Compartment Cold Rooms in the West (and the rest of the world for that matter!).


No charge update for all Mistral 'Corporate' Licensees:- Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News June 2020


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Mistral now in Polish


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No easy task! Hundreds of thousands of words, sometimes including unavoidable industry jargon and colloquialism, in phrases frequently created 'on the fly', using sophisticated text string concatenation algorithms; often with added 'dynamic' data included. All in the grammatically correct places of course!

Apart from the hundreds of pages of program form text there are all the supporting documents too. Dynamically linked and 'focused' Help pages, hints, cue cards and error messages, database fields and installation instructions.

And no, it isn't a simple Google Traduction exercise! It is a time consuming and very expensive process absorbing months of highly skilled work.

This first release is at the Beta testing stage. There will be errors! Regrettable but unavoidable. When you find a spelling mistake or a grammatical error or even a phrase or word completly failing to translate (from core program Enlish language operation) then please return the courtesy and let us know. In clear, unemotional terms and naturally, including a verifiable correction. We will act upon your advice immediately.

Tell us what you found here. Importantly; tell us how to correct it.


No charge update for all Mistral 'Corporate' Licensees:- Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News May 2020


Improvement to Mistral's 'End User' specified programs.

Unit Coolers selected for supermarket cold room suites for example can now be zoned. Making it simpler to group and connect them to separate refrigeration circuits in Mistral's 'Pipewind' multi circuit and ring main refrigerant pipe sizing program.

mistral room designer zones

Mistral Airwind, Coldwind and Prepwind room designer default setting now full screen and 400% zoom.


No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News April 2020

Mistral Quick Selection Coldrooms

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Click

Trying to compare a McLaren 720S with a Trabant 601 doesn't even come close!


Topographical detail added to world maps in Mistral's dynamic meteorology sections.

Essential altitude data has of course always been included in the actuarial weather data held in Mistral's vast meteorological database. Arguably therefore the addition of now being able to visualise local altitude does not enhance program practicality very much. It does though help improve 'user experience' and interest to Mistral programs.

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Whole of world Cartesian map projection. Zoom plus 'fit to screen' options provided in programs.


opography_north_america.gif

Note: Images shown here are much reduced in scale compared to actual program image sizes.


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Note: Images shown here are much reduced in scale compared to actual program image sizes.


Something new from Mistral every week. For the past 25 years!


No charge update for all Mistral 'Corporate' Licensees:- Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News March 2020

Mistral RAC Equipment Selector - Balance Point Graph now zoomable.
...and maximizable to fit the screen!



zoom_down_button.gif zoom_up_button.gif


Something new from Mistral every week. For the past 25 years!


No charge update for all Mistral 'Corporate' Licensees:- Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News Febuary 2020

Color matters!

Mistral's legendary 'Coldwind' series of programs deals with containers and trucks as well as all types of cold store, freezer, blast chiller and blast freezer.

Scientifically, varying reflectance as a function of surface color is described under the phenomenon known as terrestrial albedo factor. Lots of people refer to it simply as 'reflectance' and that's fine too.

Over the total exposed surface area of a standard 40' refrigerated freight container, or lighter, reflectance differences due to color can account for as much as 20% of the refrigeration load. In the tropics this can be more than 1kW or 3,412 btu per hour. Not much perhaps. Until an organisation is supplying equipment and power for 40,000 of them!

The more observant amongst our loyal friends and supporters will probably have noticed the word color above is the spelling more familiar to our American program users.

YES!, Mistral has finally gotten(?) around to recognizing (recognising?) there are some differences between American and English spelling. So we've fixed that. Finally. Automatically.

What's more we will not be drawn into any argument about who is right and who might be wrong. Other than to say of course no one can claim the high ground. Language is a living thing and it is constantly evolving. The important thing for Mistral is that as many people as possible understand what we do. All we ask please is that on the rare occasions when we do get it wrong then please tell us and then we will do our best to fix it.

No charge update for all Mistral 'Corporate' Licensees:- Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News January 2020


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Mistral now in Swedish


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We know our loyal customers and friends in Sweden all speak English but with Sweden for many years being one of Mistral's most successful markets then as a matter of respect and courtesey we felt we should provide this translation.

No easy task! Tens of thousands of words, sometimes including unavoidable industry jargon and colloquialism, in phrases frequently created 'on the fly', using sophisticated text string concatenation algorithms; often with added 'dynamic' data included. All in the grammatically correct places of course!

Apart from the hundreds of pages of program form text there are all the supporting documents too. Dynamically linked and 'focused' Help pages, hints, cue cards and error messages, database fields and installation instructions.

And no, it isn't a simple Google Traduction exercise! It is a time consuming and very expensive process absorbing months of highly skilled work.

This first release is at the Beta testing stage. There will be errors! Regrettable but unavoidable. When you find a spelling mistake or a grammatical error or even a phrase or word completly failing to translate (from core program Enlish language operation) then please return the courtesy and let us know. In clear, unemotional terms and naturally, including a verifiable correction. We will act upon your advice immediately.

Tell us what you found here. Importantly tell us how to correct it.


No charge update for all Mistral 'Corporate' Licensees:- Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News December 2019


Do yourself a favour! (and everyone else in our RAC industry!)


It simply isn't possible to translate six million words and text strings into seven different languages, across four million programs and databases, without someone making the occasional mistake. Try it for yourself and see!

Blame these guys!

tower-of-babel.gif
Don't blame Mistral!

We suggest that before getting excited when finding a misplaced or misspelled word in English or German or French or Spanish or Portuguese you first check out ANY of today's on-line news items or pick up ANY printed newspaper. Then try denying they contain any text or spelling errors. Before leaping to condemn Mistral.

Having done that then consider contacting Mistral, pointing out where you saw an error in any one of Mistral's four million program, interactive database or support files and importantly, propose a correction.

If your correction turns out to be right then Mistral, never an organisation to underestimate talent, effort and contribution by others, will send you a reward.

Reward? FREE access to Mistral's multi-million software development for yourself or for the organisation of your* choice, a choice including your employer, for a whole year.

If your company has already paid up it's account for the current term then Mistral will reimburse their payment. As a reward for providing a solution which helps everyone in our industry.

* Who knows, you might look like a hero amongst your colleagues!

Tell us what you found here. Importantly tell us how to correct it.


Cost to Mistral of researching, coding, compiling and proof testing over 6 million words and text strings in 7 languages across 4 million+ databases - Circa:- Quarter of a million Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News November 2019


mistralassociates_diurnal_ani.gif Mistral programs for Refrigeration & Air Conditioning Professionals have now reached a staggering 140 countries around the world. Mistral WORKING to reduce Global Warming.



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Available from 1 January 2020.


Cost to Mistral of researching, coding, compiling and proof testing over 12 million words and text strings in 9 languages across 4 million+ databases - Circa:- half a million Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (4 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News October 2019


195_world_countries.gif Mistral programs for Refrigeration & Air Conditioning Professionals have now reached a staggering 137 countries around the world.


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Quite an achievement and we think you will agree. It doesn't just mean Mistral has reached almost 70% of the world's 196 countries though. Because of the size of the countries reached, compared to those that it has yet to reach, this means Mistral programs are now used by RAC Professionals serving an estimated more than 94% of the world's population! Furthermore, we would argue that of the remaining countries where Mistral does not supply its programs directly then the inhabitants of these countries nonetheless import food products, and also of course refrigeration equipment, from those that do use Mistral's world class programs.

It would be practically impossible for all but a very few people in all of these places to not eat food at some time or another that had been refrigerated, or even that food's ingredients, with Mistral's help. Thus with the involvement of Mistral RAC Programs for Refrigeration Professionals. Ensuring product safety. Reducing manufacturing, energy and distribution costs. All helping to reduce Carbon Footprint.

amazon_tree_houses.gif So, unless living in one of the remotest and most isolated communities on the planet, in the Rain Forests of the Amazon for example, then we feel justified in claiming Mistral software now affects everyone on the planet.

Well almost!


Agents and Distributors sought. Click for list of countries currently served


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Mistral Associates - News September 2019

Mistral 'Prepwind' Food Preproom Refrigeration Load Calculation program has now been added to the 'Corporate' compendium of core programs.

Meaning it is no longer necessary for Mistral 'Corporate' Licensees to download 'Prepwind' separately after installing or upgrading/updating their 'Corporate' program installations.

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Cost to Mistral of researching, coding, compiling and proof testing 'Prepwind' using component parts sourced and adapted from existing Mistral software products - Circa 13,000 Euros. (34 year historical development cost of those existing Mistral products - Circa 11.5 million Euros).


No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.


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Mistral Associates - News August 2019

New Embraco Condensing Unit selection databases added.
Both unhoused and also housed easy access 'Sliding' condensing unit ranges with selection data across a wide range of refrigerants including R134a, R290, R404A, R449a, R452a, R513a and R507.


Cost to Mistral of compiling and proving 16 new interactive databases: Over 1,500 Euros.

These databases, part of a collection of more than 17,000 interactive databases in Mistral's complete systems, were sponsored by Hawco Refrigeration of Godalming, Surrey, United Kingdom.
Tel Sales: O1483 8691OO


No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.



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Mistral Associates - News June 2019


Our founder and mentor is retiring.


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Mistral is marking a tremendously sad event in the only way we know how. With one of our founder and mentor's wicked cartoons (with apologies to William Shakespeare!). At seventy years old Chris Smith is finally retiring. Chris, full name Christopher Ian Latham-Smith, though he rarely uses his double barrelled birth name, 'Achilles heel' as he calls it. "Unless I'm forced to in Court!" he whimsically protests, founded Mistral thirty five years ago in 1984. To address a dire need in our industry for infallible, peer led and above all else, sensible and easy to use software. Following a heady, meteoric career with Sundstrand Heat Transfer Manufacturing UK in the 70s, later heading up McQuay-Perfex Europe then BTU Coil Company, Chris has worked tirelessly helming Mistral ever since to hold its position as the world's undisputed leader in the computer software genre he was actually responsible for creating.

Strong leadership, fortitude and long, incredibly long hours welded to a sense of humour that have kept all of us here in Mistral's 'Engine Room' in stitches of laughter each and every day that we tackle the demanding and serious side of our business. Our industry is going to miss him.

Winter will soon be upon us; though knowing Chris and his legacy then Spring won't be too long in coming.

spacerSigned:-spacerengineroom_sigs.gif

spacerThe Mistral 'Engine Room' Crew



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Mistral Associates - News May 2019


Announcing 'Prepwind' - Dedicated Food Preproom refrigeration load calculation and RAC equipment selection program.


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FREE download for existing Mistral 'Corporate Licensees'. Click above image for request form.

'Prepwind' employs the same graphical user interface as Mistral's acclaimed 'Coldwind' program series, with access to the same world meteorological, food product and scores of other indespensable databases but with the addition of merged building construction materials and coldroom insulation panel databases. Switchable between operating to both external and internal dimensions and as with 'Coldwind' runs simultaneously in both Imperial and SI (metric) units. Switchable between English and French language. Complete with 1,920 optional, 'Instant Selection', pre-engineered and fully editable room designs.

Design and size a food preproom, automatically select the refrigeration equipment, save the file for future total recall* if future editing required and print out a comprehensive, plain language and jargon free, customer presentation quality specification to support your quotation through to a contract order. Create a Preproom project in flag_uk.gif English then switch it to flag_fr_16x11.gif French to forward to a colleague, specifier or customer in France.

All in under three minutes! Do please let us know if you can find another refrigeration load calculation program like it. Indeed coming even close to it. From ANYWHERE in the world! Also made available for FREE download by existing Mistral 'Corporate Licensees' (click image above to download). Supplied bundled with 'Linewind' multi-refrigerant pipe sizing and 'Metwind' interactive world meteorology programs.

* Mistral programs are unique in saving not just project results but every operation that went into creating that result. Meaning calculation files can be retrieved an hour, a month or even a decade later and be studied, edited if needed and re-saved. A major difference and benefit. Other software developers don't (can't) do that!


Cost to Mistral of researching, coding, compiling and proof testing 'Prepwind' using component parts sourced and adapted from existing Mistral software products - Circa 13,000 Euros. (34 year historical development cost of those existing Mistral products - Circa 11.5 million Euros).

FREE download for existing Mistral 'Corporate Licensees'. Click above image for request form.

Between field and plate your food or at least some of its ingredients were refrigerated on average seven times. If you eat food then Mistral software was used to help refrigerate it! mistralassociates-com_product_ani.gif Click to discover more!



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Mistral adds new Bioma range of housed condensing units from Embraco

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BIOMA Silent unit: A condensing unit for cold rooms with new silent features, meeting environmental requirements, innovative design and easy maintenance. Designed for outdoor applications, such as filling stations, restaurants, fast food and convenience stores. It is available in medium temperatures (MBP) up to 10 kW and low temperature applications (LBP) up to 4 kW. Appropriate for the latest refrigerants with low GWP solutions (R449A, R452A, R513A). With its stackable design, the unit stands out for accessibility, serviceability and compactness.


Set of seven databases, joining more than 17,000 interactive databases in Mistral's complete systems, were sponsored by Hawco Refrigeration of Godalming, Surrey, UK.
Tel Sales: O1483 8691OO

Cost to Mistral of researching, processing, compiling, proving and incorporating these new interactive condensing unit selection databases: 1,550 Euros.


No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.

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Mistral Associates - News April 2019


mistral_marathon_man.gifBy popular request Mistral has increased the number of Instantly Selectable, pre-engineered pipe size Design Templates to 114. Arranged in refrigerant menus.

Quite simply there is no easier or faster or more accurate way to size refrigerant pipework. An irksome task at the best of times when performed manually with calculator and tables. Especially when your customer asks you to relocate the unit coolers to the other side of the cold room an hour after you had just completed the task! And 'YES', we've all been there haven't we?!

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No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.




Responses to a recent industry wide questionnaire suggest that over 70% of all unit coolers installed in the UK are selected using Mistral software.

The figure might actually be higher but as with all such on-line surveys not everyone responds.

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Still don't want your unit coolers featured alongside all your competitors' products in the one RAC Application Engineering software system that more than 85% of the industry uses?

You have your own product selection software?

Of course you do. So does everyone.

Can four and a half thousand RAC contractors, in the UK alone, use your software to select your cooler then compare it with products from your competitors such as Eco, Frigabohn, Kelvion Searle, Küba Kältetechnik, Lu-Ve Contardo and Univap (and vice-versa)? Then balance it against condensing unit ranges from Aspera, Bitzer, Copeland, Cubigel, Daikin, Danfoss, Dorin, Embraco, Frascold, Hawco, Hubbard, J & E Hall, KD, Kelvion, L'Unite Hermique, ManEurop, Marstair, MTH, Profroid, SDM Frigo, and Tecumseh?

Thought not.

Mistral's software does that.

Whose software do you think four and a half thousand RAC contractors in the UK alone are using every day to select their unit coolers, condensing units, compressors, condensers and packaged systems?

Still don't want your unit coolers featured alongside all your competitors' products in the one RAC Application Engineering software system that more than 85% of the industry uses?

I see!

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Language

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Celebrating Franco-British Exhibition, London, 1908.


'Airwind', 'Cellwind' and 'Coldwind' programs may have their operating language switched between English and (currently only*) French languages by opening the language selector menu by clicking the language_icon.gif icon in each program's top menu bar.

Switching languages completes instantly upon re-starting the program. Switching language back again is achieved simply by opening the language selector menu again.

Quick selection calculations selected in menus will only function in their appropriately set language.

* More languages are planned. Unlike other software, Mistral's programs are language switchable AFTER program installation and not just selected and thus fixed prior to installation. A far more useful facility.


Cost to Mistral of researching, translating and re-coding over five million words in 19,000+ source code interface pages, including form titles and labels, instructions, cue cards, text string concatenations and error messages; along with linked Help pages and interactive database file text content. Circa 220,000 Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.


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Mistral Associates - News March 2019


Coldroom dimensions - Internal coldwind_dimension_mode_setting_icon.gif or External coldwind_dimension_mode_setting_icon_b.gif?

The argument continues. Well perhaps not so much an argument but certainly a persistent debate.

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In the United Kingdom at least cold room designs are generally conducted based upon external room dimensions. At Mistral our programs have followed this practice from the beginning, over 30 years ago. When desktop computers weighed a tonne and ran on steam, or so it seems to us now. We had always assumed this being due to coldrooms, smaller ones in particular, generally being constructed inside another enveloping building space. This is not how they do things on the Continent however. In most European countries cold rooms are usually designed, sold and discussed using internal dimensions. Mistral thus supplied its programs in mainland Europe accordingly.

Debate no more!

Now you can have it both ways. From 1st April* Coldwind Pro will have the facility to switch back and forth between designing with either internal or external room dimensions.

To minimize risk of confusion the program's operating dimension mode is clearly indicated at the top of the Room Designer form. To completely eliminate risk of potential and costly on-site errors calculation results filed in either mode will be respected and effectively 'locked' in whichever mode they were originally created in.

* No, not an April Fool's joke!


Cost to Mistral of redeveloping Coldwind Pro source code dimension routines and associated, linked functions. Circa 120,000 Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.


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Mistral Associates - News February 2019


Copeland R744 (CO2) compressor selection data added.

Surely 2019 is set to be the year CO2 refrigeration installations really take off! No day passes now without Mistral program users asking when we will be adding equipment selection interactive databases from this manufacturer or that manufacturer.

See recent News features below to discover what has recently been added already. The latest are Copeland's ZO and ZOD Copeland Scroll compressor range for CO2 subcritical refrigeration and also 4MSL Stream range of compressors for subcritical applications where meeting high standstill pressure (90 bar) is needed.

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Click image to download update right now.


Cost to Mistral of researching, processing, compiling, proving and integrating new interactive Copeland R744 product selection databases: circa 1,800 Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.




LINEWIND Quick Selection Template descriptions improved.

linewind_templates.gif
Click image to download FREE upgrade.

LINEWIND Quick Selection Template descriptions improved. The simple expedient of adding the refrigerant name to the template file name. Thereby reducing risk of error when previously the only indication of which refrigerant was under consideration was shown only at the head of the active calculation.

LINEWIND & sister program PIPEWIND. Capable of completing refrigerant pipe circuit sizing in just a few minutes. Even just a few seconds for simple, single cooler load circuits. An irksome task that can sometimes takes days when attempted manually!



mistral corporate people

Mistral 'Corporate Licensees' taking on more staff may now top up contracts on-line.
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Organisations wishing to increase their current licence with access by up to 3 additional users. Please click here:- Mistral Corporate Licence Access Top Up

Top-up for up to 3 additional users UK£100 p.a., 115 Euros p.a., US$168 p.a..* Prices indexed to UK Pound.

* Daily Exchange Rate fluctuations may mean the price you pay through Mistral's Secure Server is slightly different to the price shown above. Large adverse differences (above single figures) will be refunded upon request. Would you offer to do the same for us if the difference is in your favour?! If in doubt please contact.


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Mistral Associates - News January 2019


MISTRAL WISHES YOU A VERY HAPPY and PROSPEROUS NEW YEAR

In response to ever increasing monitor sizes, coupled with ever decreasing pixel sizes, Mistral has adopted new 'default' size settings for 'Airwind' and 'Coldwind' Room Designer forms.

mistral room designer

Mistral Airwind and Coldwind room designer default setting now full screen and 200% zoom.

Both new installations and installation upgrades will adopt full screen format with 200% grid zoom setting as default.

Program users will naturally still be offered instant, infinitely variable form size adjustment from 575 pixel width X 424 pixel height and zoom levels of 50%, 100%, 200%, 400%, 800% and 1600%; along with default re-setting and other options including colour and 'snap to grid' changes via 'Options/Customize/General/Designer' at the top menu bar.

Maximum room sizes (in the absence of Special Feature Code application) remain as before at 100 metres X 100 metres in SI mode and 328' X 328' in Imperial mode.


No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.

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Mistral Associates - News December 2018


TELL THEM. NOT US!

costwind_with_shelving

'Coldwind' will design a coldroom or freezer and select the refrigeration equipment in less than 2 minutes. As everyone knows. But does everyone know that sister program 'Costwind' will also price that coldroom and generate the complete customer quotation? - Automatically and simultaneously!

Yes. We know prices for coldroom shelving are well out of date in our databases. But tell your preferred shelving manufacturer and not us! Mistral have a strict policy to not publish ANY data without the express permission of the people who own the rights to that data. A policy designed to protect your interests.

Assembling a large, interactive and often complicated database does not cost a few hundred Pounds. It costs thousands! Nonetheless, if your preferred shelving manufacturer really is afraid they'll end up selling more of their product by sending us their data for inclusion then we'll make it really easy for them. Mistral won't charge them a penny! That's right. We will crunch the numbers for them for FREE!

All we ask is that they send us the data before Christmas and our slack period. Where we can get on with work relatively quietly. While everyone else is enjoying their traditional Christmas break.

If they won't listen to us then perhaps they'll do the right thing and listen to you - their customer!


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Mistral significantly increases R744 (CO2) Product Selection Databases


lu_ve_contardo_fhc_coolers Until recently refrigerant R744 has been the preserve of larger commercial and industrial refrigeration installations. That appears set to be changed. Beijer Italian subsidiary SCM Frigo S.p.A. have added a range of smaller critical low temperature, high pressure operating CO2 condensing units named Cubo2 Smart.

No point though in having smaller R744 condensing units without a range of matching HP (85 Bar) coolers. Leading RAC manufacturers Lu-Ve Contardo provide the solution with their ranges of R744 coolers. From small coldroom Panel Coolers, to larger (standard coldroom design) Unit Coolers to specialised application, Eg., food 'Prep Room', Dual Discharge Coolers. A formidable, high quality product array from this highly respected RAC equipment manufacturer.

Mistral Associates are delighted to be honoured with access to comprehensive application engineering data for all the above products for addition to its already world's largest (probably) RAC equipment, interactive, database resource.

Cost to Mistral of researching, processing, compiling, proving and incorporating new interactive RAC R744 product selection databases: circa 12,500 to 13,000 Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.


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Mistral Associates - News November 2018

New CUBO2 Smart housed CO2 condensing units.

New interactive selection databases added.

CUBO2 Smart condensing units by SCM Frigo, are inverter driven and available for both medium and low temperature applications. They range from 0.6kW-8kW in medium temperature and 0.7kW-7kW in low temperature.

CUBO2 Smart condensing units are manufactured by SCM Frigo S.p.A. in Italy.


Cost to Mistral of researching, compiling and proving databases: Over 600 Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.

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Mistral 'Definitions' & 'Scientific Factors' pages improved and restyled.

A boon for teachers and trainers in our industry.

mistral definitions page

So many Mistral program users are unaware the 'Mistral Definitions Index' even exists. Both on Mistral's website and also supplied with every program issued. Which is a shame! The link is found on the top menu bar of the Help Pages for 'Airwind', 'Cellwind', 'Coldwind' and other core programs. However, the few that do refer to it will welcome recent improvements and additions to this valuable educational and technical reference tool.

Text has been made easier to read (in line with the process described in the News feature below) and page navigation made simpler. A minor detail but the irksome earlier version not centering on the screen has also been resolved.

mistral data iconFinally, similar improvements have also been applied to 'Mistral Scientific Factors'. One of the largest and easiest to use (jargon and verbosity free! mistral kissing icon) resources of its kind on the Internet.

Over 1,050 useful scientific conversion factors. All gathered together in one easy to use alphabetically arranged resource. Next time you have to convert Btu/lb/Rankin to kilojoules/kilogram/Kelvin or vica-versa you'll know where you can find a reliable answer!

We hope you like the improvements and would also welcome your ideas for any further changes and additions. Feedback

Cost to Mistral for just a day of editing work on two of Mistral's 19,000+ code pages:-
Just 250 Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.

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Mistral Help page font change and text reset

"The impossible we do at once. Miracles take a little longer."

We have all smiled at that sardonic comment at some time or another.

It is a fact though that seemingly simple things to achieve in computer programming can cost literally thousands, even tens of thousands. Whilst the jaw droppingly impressive can often be put together in seconds and for next to no cost at all. A paradox.

Deciding to upgrade fonts (the letters that make the words) in just a small part of our programs falls somewhere between the two.

Due to another paradox created by the recent advent of larger, high resolution, flat screen monitors; actually resulting in smaller and more difficult to read text, Mistral has been forced in some instances to abandon its favoured and Microsoft recommended font of decades, Ariel, in favour of the more modern and legible Segoe.


mistral ariel font


mistral segoe font

We hope you like it. It cost us more than we were expecting!

Cost to Mistral editing illustrated Help pages to accomodate new font: 6,500 Euros.

At the same time we overhauled our website too. Cost 11,000 Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.

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Mistral Associates - News October 2018

Interactive Meteorological Database additions

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The United Kingdom is a renowned world leader in food 'Cold Chain' technology. Refrigerating food from 'Field to Plate'. What is perhaps less well known is just how much of this advanced refrigeration technology is exported to other countries. From Afghanistan to Zambia along with all points inbetween.
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Professional Refrigeration Engineers recognize that all new refrigeration projects start with the heat load calculation. Hence the reason Mistral's 'COLDWIND' load calculation program began its life over a third of a century ago. What is also often not appreciated is that 'COLDWIND' is under constant, daily development. Not just to maintain it so as to keep abreast of unrelenting advances in computing technology but also to reflect changing needs and new challenges in the commercial refrigeration industry the program serves.

One of these challenges is constantly updating and adding to 'COLDWIND's vast interactive database of actuarial, meteorological data. 'COLDWIND' is capable of calculating not just 'worst case' results for refrigeration projects, but also energy profiles at 15 minute intervals for every day of the year, in tens of thousands of world locations. With no more than a couple of mouse clicks on thousands of world maps, or alternatively by simple to follow, alphabetically arranged, country by country menu selections.

metwind sample

Research in meteorological data is a surprisingly complicated and generally quite expensive process. Official sources that have invested huge amounts of money gathering and formulating reliable, certified meteorological data don't often hand it out freely to just anyone that comes along and asks for it! And not unreasonably they ask to be paid for it.

Good to know then that over the preceding nine months Mistral has found, purchased and added meteorological profiling data for another 200 or more primary world locations. Thereby further helping refrigeration companies involved with designing refrigeration installations in locations all around the world.

'COLDWIND's meteorological interactive database is shared by both 'AIRWIND' and 'CELLWIND' and also Mistral's Shareware program, 'METWIND'.

See:-

airwind icon'AIRWIND' spacer cellwind icon'CELLWIND' spacer coldwind icon'COLDWIND' spacer metwind icon'METWIND'


Cost to Mistral researching & compiling Meteorological database edits: 1,300 Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.

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Mistral Associates - News September 2018

New account PRICE CHANGES

Following the huge and sustained fall in value of the UK Pound against other leading world currencies trading has proved increasingly difficult for Mistral Associates.

It comes as a surprise to many people, especially those adhering to the myth that software developers have a 'Licence to Print Money', but the fact remains that software development is an extremely hazardous business to be in. Margins are very small and the risks very high. Explaining perhaps the reason why over 90% of all software companies cease trading or go bust within their first five years following start-up. There are exceptions of course. Microsoft Corporation, (and with no fear of accusations of libel!) with their dubiously ethical trading practices are one. Social media software companies are others. Though many of these are actually only supported by overly optimistic stock brokers and have actually yet to make any profit at all! Just to remind everyone. The 'Dot Com' crash of the late twentieth century was no myth. That was FACT!

Mistral Associates are different though. Although occupying a clearly even more hazardous 'niche market' sector Mistral has been successful since inception over a third of a century ago, and where its imitators and plagiarists have all largely since disappeared. Why? Lots of reasons. Not the least of which is the high quality of its product and service but also its dogged refusal to diversify and finally its celebrated very fair pricing policy.

Do you remember Mistral's promise?

Mistral's prices are 'FIXED IN PERPETUITY' (subject only to inflation).

Well we are afraid that the 'subject only to inflation' time has come. A whole twenty five years after our last major price review, and in the light of the disastrous effect the Brexit debacle has had on the value of the Pound, we now have no choice but to increase our selling prices if we are to remain in business.

However there is still good news for our large number of loyal customers, many of whom have accounts going back with Mistral for twenty five years or more. We will still not increase our prices to you. For the time being at least. And even when we are ultimately forced to do so it will still be by amounts well below cumulative inflation rates for the time period.

For new accounts see Mistral's new Price List here:-

Please also do note that even with these new prices access to the world's most comprehensive Expert Software System for the Refrigeration & Air Conditioning industry, and certainly the best maintained and easiest by far to use, remains at only a few pence/cents per day, or even less, per user!

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Yes. We've all heard the joke.

Boss: "I feel as though I'm a mushroom."

Boss's PA: "Why?"

Boss: "Because I'm kept in the dark and everyone keeps throwing s**t at me!"


Well now you don't have to be kept in the dark. At least not as far as how to help mushrooms keep their cool.

Resulting from a couple of recent requests for help from valued clients a piece of research conducted by Mistral revealed that more than just a few users of Coldwind Pro have helped mushroom growers' businesses over the years. And whilst the thermal properties of mushrooms have been included in Mistral's Coldwind Pro's 'Food Products' databases for decades, the medium mushrooms are cultivated in has not.

Further research revealed that right across Europe and North America, what is described as Mushroom Compost generally consists of similar ingredients. That is:- Alfalfa hay, Cattle or horse manure, Corn stalks, Oat straw, Poultry litter, Sawdust and wood shavings, Silage, Soil, Soybean, Wheat straw. Naturally there are regional variations and also varying proportions of ingredients. However the basic principal and composition of the compost mixture is roughly the same.

Mass (weight in kilograms per cubic metre) turns out to be generally around 370 kg/m³. Much lower than for damp soil for example and which can be as high as 1,700 kg/m³

mistral compost Mistral has therefore been able to estimate 'mean (high) average' properties for mushroom compost and which should be safe for all practical commercial purposes. This data has now been added to Coldwind Pro's Food Properties database; under the 'Miscellaneous' group heading.

Cost to Mistral of researching, compiling and proving database edit: Over 800 Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.

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Mistral Associates - News August 2018

Improved flexibility in Coldwind Pro Product selections

For more than 25 years Coldwind, along with its later professional feature enhanced version Coldwind Pro, have had minimum Product turnover limits set at 2 kg per cubic metre room volume per cycle. This of course to protect program users from inadvertently or mistakenly including product loads far too low to reflect likely usage. However, the lower limits, as low as they were nonetheless frustrated attempts to add and accumulate a mixture of additional products from which the overall calculation result might benefit.

As shown in the above example where although the principal product load might be attributed to wine, calculation accuracy would be enhanced by simultaneous calculation of the load for the bottles in which the wine is contained, the cartons in which the bottles are contained and finally the pallets or stillages upon which the wine cartons are placed. There are of course hundreds more product storage situations where this applies.

Although probably not making much difference for a 1,000 cubic metre cold store, experience has shown this calculation enhancement becomes much more important in examples of super sized distribution centres of 40,000 cubic metres, 80,000 cubic metres and more recently some of even more than 120,000 cubic metres.

Mistral's expert system software is constantly evolving to meet new challenges in the industry.

Cost to Mistral of researching, compiling and proving database edit: Over 3,300 Euros.

No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.

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Mistral Associates - News July 2018

Tecumseh New Wintsys housed condensing units.
New interactive selection databases added.


Tecumseh claim their New Wintsys range of housed, outdoor condensing units will bring benefits of:-

Mistral Gold StarOn-site time saving
Mistral Gold StarProductivity
Mistral Gold StarEconomic operation
Mistral Gold StarHigh efficiency
Mistral Gold StarRefrigerant compliance
Mistral Gold StarImproved competitiveness
Mistral Gold StarVisually pleasing housing design


Tecumseh's New Wintsys condensing unit range are assembled in France.

Cost to Mistral of researching, compiling and proving databases: Over 1,300 Euros.

This database, one of more than 17,000 interactive databases in Mistral's complete systems, was sponsored by Hawco Refrigeration of Godalming, Surrey, United Kingdom.
Tel Sales: O1483 8691OO


No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.


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Mistral Associates - News June 2018

PIR Fire Resistant insulation materials added

PIR Fire Resistant insulation materials added to 'Coldwind Pro' Quick Selection 'Pre-engineered' cold room and freezer designs databases.

Cost to Mistral of new 'Quick Selection' database update development and proving: Over 2,000 Euros.


No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.


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Mistral Associates - News May 2018

Database templates software. A reminder!


Mistral has offered database templates of in-house developed multi-relational databases from the firm's earliest days. Along with free access to Mistral's Treedb32.exe database creation and editing tool.

Exactly the same tools Mistral uses to create and maintain the tens of thousands of program interactive databases distributed with every issue of Mistral software. These are supplied with rudimentary* Help pages outlining critical code that is need to enable user created databases to be recognized by and run in Mistral programs. For example for selecting refrigeration and air conditioning capital equipment or for coldroom cost estimation and customer sales quotation generation.

Mistral will happily provide developers a limited amount of advice and support at no charge. Providing developers have suitable qualifications or Demonstrate aptitude in programming.

*Prospective code developers are assumed to already possess necessary programming skills. Mistral Associates cannot be expected to provide basic training. Novices are also warned that acquiring such skills comes neither easily nor quickly and can, indeed usually does, take years! Proprietary RAC equipment selection databases supplied with Mistral programs are locked and cannot be edited.

Manufacturers and distributors wishing to promote their products by reaching the vast majority of prospects already using Mistral's legendary RAC Application Engineering programs and relishing the chance to try their hand at programing therefore need look no further than the links below:-

RAC Equipment Selection Databases - Notes for Programmers.

RAC Equipment Selection Databases - zip file of sample Mistral database templates.

Download Mistral Treedb32.zip

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Mistral Associates - News April 2018


Another 21,948 new 'Quick Selection' coldroom & freezer designs

mistral quick selection 21,948 new files


mistral refrigerated food product animation Mistral has added another 21,948 new 'Quick Selection' coldroom & freezer designs to 'Coldwind Pro's' grid size room optional operating procedure. Bringing the number of almost instantly selectable pre-engineered coldroom & freezer designs to a total of 102,256!

Anyone claiming computer programs aren't necessary and that they can do the job faster is willing to try. Providing they can conduct over 175,000 intricate and inter-related calculations per second then they might stand a chance. If able to prove they are both faster and more accurate than 'Coldwind' Mistral will reward them with free program access - FOR LIFE!

Each design is in effect a complete 'pre-engineered' cold room or freezer design file and which has been created reflecting current industry specifications and design standards. These files can be opened, edited if required and re-saved. Behaving in exactly the same way as using 'Coldwind Pro' to produce a custom design.

So astonishingly simple and quick to select that most experienced 'Coldwind Pro' users generally take just ten to fifteen seconds to click on the 8 to 10 buttons needed to design a new coldroom or freezer from scratch. Then another ten seconds if they wish to automatically print out a detailed, presentation quality, illustrated summary report. Even users totally new to the program manage to unambiguously locate exactly the design they need in only a few seconds more.

mistral movie The best that an equally experienced and qualified refrigeration engineer could match 'Coldwind Pro' for accuracy and completeness of a similar design, armed only with a calculator and a few pages of tables, took a little over two hours! An even more interesting fact to emerge from Mistral's extensive field trials is that if the same engineer is asked to repeat exactly the same manual calculation exercise a second time around just a few hours later then they will invariably come up with a different result to their first attempt!

'Quick Selection Charts' published as aids by many RAC equipment manufacturers and distributors have also been shown to overestimate refrigeration loads by anything from 10% to as much as 30% when compared to Mistral's proven computerised calculations.

click above image to discover whether you're wasting money!

Cost to Mistral of new 'Quick Selection' database update development and proving: Over 4,000 Euros.


No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.

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Mistral Associates - News March 2018


Reduced rate annual subscription for sole traders


mistral_modules Mistral's trial reduced rate annual subscription for sole traders and single user licensees has now been made permanently available.

Following a highly successful trial launch in December 2017 Mistral's new 'Subscription' licence product, offers identical benefits to the long established and popular 'Corporate Licence' except it is now offered for smaller business users, sole traders, independent consultants and students.


A substantial 67% saving against previous price!

Click here:- Annual Subscription for immediate purchase and same day* complete system download and access.
* Within 24 hours. Please be aware of international time zone differences from CET.

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Mistral Associates - News February 2018


r513a Refrigerant R513A (Opteon TM XP10) non-ozone depleting, low global warming potential (GWP) added to Pipewind Pro - Professional RAC pipe sizing program.

Ideal successor to R134a for medium/high temperature applications.


No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.


R513A interactive database. Cost to Mistral of data processing, compilation and proving: 1,750 Euros.

One of more than 17,000 independently verified, interactive databases available to Mistral Corporate Licensees. World's largest independent collection.

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Mistral Associates - News January 2018


New interactive database for Lu-Ve Contardo commercial range of coolers


lu-ve logoA world leading and highly regarded refrigeration equipment manufacturer.


mistral lu-ve program menu


Mistral's proposed new interactive databases for selections from Lu-Ve Contardo's commercial range of coolers will be an operating conditions sub divided grouping comprising 'drill down' to 138 individual product sub-databases. By the time all options and currently available refrigerant data are considered.

All levels accessible through maximum of three button clicks from opening of main database.

Estimated databases total size from 3.0 to 3.4 mBytes.

Following successful proving Mistral's release date is aimed for mid February 2018.*
*Now released. Sunday 18 February 2018.
Free download from this page for all Mistral 'Corporate Licence' subscribers. mistral lu-ve cooler


Cost to Mistral of Lu-Ve Contardo databases development and proving: 8,500 Euros.


No charge update for all Mistral 'Corporate' Licensees:- Corporate Update link
A new Corporate Access Registration Code may be required for older installations (8 weeks +) but this will be automatically forwarded when required.

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Mistral Associates -News 01 July 2016 to 31 December 2017

2017 saw the culmination of an 18 month critically important recoding project. Affecting all 12 Mistral main program engines. New program families were rolled out from early July to end of December 2017.

Changes to program installation and to file and database saving procedures.



Mistral Associates - Really old news

Mistral MD Real Mistral sales story from 1998.

Sometimes friends need a little help before they can see the wood for the trees!

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