VRFTools
Is VRFTools made by Mitsubishi Electric?
No. VRFTools is an independent project from Madison Innovations. It isn't affiliated with, endorsed by or supported by Mitsubishi Electric; for help with a tool, contact us. See the Disclaimer & Terms of Use.
Does VRFTools cost anything?
No. Every tool on the site is free, with no ads and no accounts. It runs on donations, so if a tool saved you a trip or a phone call, a beer helps keep it that way.
Do I need to install anything?
Not for most of it. Central Controller Config Tools, MTDZ Viewer, Wiring Layout Generator and LEV Kit Configurator run in your browser. MT+ and Legacy Controller Upgrade are Windows programs you download.
Which central controllers do the Config Tools work with?
The Config Tools turn a DSB project into loading-ready AE-200 and AE-C400A config files, and can reorder groups, change generations or split a site database. Moving an AG-150 or G-50 setup to an AE-C400A is the Legacy Controller Upgrade's job. The Config Tools guide covers each tool field by field.
Does it work on my phone?
The LEV Kit Configurator is built to use on your phone at the unit. The other tools are built for a laptop or desktop screen.
Found a bug, or want a tool that isn't here?
How do I hear about new tools?
Join the newsletter at the bottom of any page: a short email when a tool ships or changes, and you can unsubscribe with one click.
MT+
The Windows app for M-NET diagnostics. Download it here.
Why is my browser blocking the download?
Not because of anything in the file. Browsers and Windows are wary of any program few people have downloaded yet, more so when it isn't code-signed, and MT+ is both new and unsigned.
Code signing is a digital signature on a program, made with a certificate the publisher buys each year from a company that checks who they are. It lets Windows show the publisher's name and trust a new program sooner. It's a yearly cost aimed at software companies, and it isn't practical for a free tool right now.
Keep the download and run it:
- Chrome: open your downloads (Ctrl+J), find MT+ and choose Keep. Some versions word it Download suspicious file.
- Edge: in the downloads panel, hover over MT+, open the … menu and choose Keep, then Show more and Keep anyway.
- Windows: if a blue Windows protected your PC box appears when you run the installer, click More info, then Run anyway.
Only download MT+ from vrftools.com. If a company laptop won't run it at all, that's an IT policy on unsigned programs; your IT department can allow it.
Why are some tools locked?
Most of MT+ only reads from the equipment, and all of that is in Basic, free for everyone with no test. A few tools command units instead of just reading them, and a tool like that, misused on a live system, can cause real trouble. Port Verification and Evac Mode are those tools, so they unlock with Certified.
Certified is free too. You earn it by passing the Port Verification test on MT+'s demo site, so everyone who uses those tools on a real job has run one first.
Why do I need to pass a test?
Only for the Certified tools; everything in Basic works without it. Certified unlocks tools that command the equipment instead of just reading it, such as Port Verification.
The test is the job itself: a Port Verification on MT+'s demo site, a simulated system with some indoor units piped to the wrong ports. Find where each one is really piped and you pass. It's the only way to Certified. See Get Certified for how to start it.
Can MT+ harm the equipment?
The tools that read (the address search, DIP switches, error history, function settings) only ask units for information; they don't change how anything runs. Tools that write settings or command units can, just as Maintenance Tool can. That's why MT+ groups its buttons into Read, Write and Command rows, why the stronger tools sit behind tiers, and why command tools carry their own safety checks whatever your tier: Evac Mode won't run until every indoor unit is detected off.
Like any service tool, it's only as safe as how it's used. Know what a tool does before you run it on a live system; every tool has a help page in MT+. See the Disclaimer & Terms of Use.
Is MT+ really free?
Yes. There's no price, no subscription and no trial that runs out. Certified is free too: the test is about safe use, not payment.
MT+ does ask you to join the VRFTools newsletter when it starts. You can close the prompt after a few seconds, and once you subscribe and confirm the email, it stops asking. VRFTools runs on donations, so if MT+ saves you a trip, a beer helps keep it that way.
Does MT+ need an internet connection?
No. The basics work offline with no account. The Certified test needs a connection when you press Exit, so vrftools.com can check your run; after that your key is stored on the laptop and works offline. When there is a connection, MT+ also checks for updates and sends any feedback you choose to send.
What does MT+ send to vrftools.com?
For the Certified test, your demo-site run (the ports you recorded and the steps you took) and, once you pass, the email you register. Otherwise only your email when you subscribe to the newsletter or MT+ checks whether you have. Feedback carries what you typed, which tool, your tier and the MT+ version, with no email and nothing that names your PC.
Didn't find your answer? Ask us.