MTDZ Viewer
View, report on, and inspect Mitsubishi Maintenance Tool monitoring files (.MTDZ, .MTLZ, .MTPZ).
Upload a File to Get Started
Drag & drop a monitoring file here, or click to browse
.MTDZ · .MTLZ · .MTPZ
Browse files…
Max 50 MB · Deleted nightly
View Log Data
.MTDZ → graphs
Graph sensor data for outdoor and indoor units over time — temperatures, pressures, and operating modes.
Generate Report
.MTDZ → .docx
Create a pre-formatted Word document with graphed sensor data for every system — ready to share or archive.
System Config
.MTPZ → topology
Visualize full system topology: outdoor units, BC controllers, indoor units, and M-Net port connections.
Download Raw Data
.MTDZ → .csv
Export every sensor reading as CSV for custom analysis in Excel, Python, or other tools. No aggregation.
About These Tools
The MTDZ Viewer opens maintenance tool monitoring files directly in the browser. Upload your file above and select a tool to graph log data, generate a diagnostic report, inspect system topology with port connections, or download extracted raw CSV data — no software installation required.
All processing happens on the server. Uploaded files are deleted nightly at 1:00 AM Pacific Standard Time. Maximum file size: 50 MB. See the How to Use guide for detailed instructions.