VRFTools

Unofficial Mitsubishi HVAC utilities, built by Madison Innovations.

🗂️
Central Controller Config Tools
4 utilities · Free · Browser-based

Convert DSBX files to loading-ready DAT configs, reorder groups, change controller generations, split multi-controller databases, and save sessions for sharing — no manual data entry required.

📊
MTDZ Viewer
Free · Browser-based

Upload .MTDZ, .MTLZ, or .MTPZ maintenance tool data and get interactive graphs for every outdoor and indoor unit, a system topology map, and a Word document report exportable for project closeout documents — all without installing any software.

⚙️
LEV Kit Configurator
Free · Mobile-friendly

A mobile-friendly configuration wizard that walks through required LEV kit DIP switch settings and outputs a clean switch-setting table. A desktop batch editor handles multiple units at once with submittal-ready output.