HVAC / runnable MCP tool
Run the Superheat & Subcooling Calculator in your AI assistant
Through the free Intry MCP server, ChatGPT, Claude, or Cursor runs this exact calculator and hands back a verdict and the cited source, not a guess. Tool name: superheat_subcooling.
Ask your assistant
Once Intry is connected, type a question like these. The assistant recognizes the job and calls the superheat_subcooling tool, then answers with the number, the verdict, and the citation.
Inputs
| Field | Required | What it is |
|---|---|---|
| refrigerant | yes | Refrigerant, e.g. 'R-410A' or 'R-454B'. |
| suctionPressure | yes | Suction (low-side) gauge pressure, psig. |
| suctionTemp | yes | Suction line temperature, °F. |
| liquidPressure | yes | Liquid (high-side) gauge pressure, psig. |
| liquidTemp | yes | Liquid line temperature, °F. |
| meteringDevice | optional | txv or fixed orifice (default txv). |
Add Intry to Claude (free)
One paste and Claude can run this tool and every other Intry calculator. Free on every plan, works on your phone.
- Open Claude and go to Settings, then Connectors (works on the phone app too).
- Tap Add custom connector and paste the Intry link below.
- Tap Add. Done. Now just ask Claude any wire, load, conduit, or refrigerant question.
https://www.intrysys.com/api/mcpFree inside Claude, on every plan (including the free one) and on your phone. No login on our end, no API key.
Using ChatGPT, Cursor, or a dev tool? See the developer setup on the main page. The endpoint is https://www.intrysys.com/api/mcp.
The tool returns its governing citation with every call (for example the NEC 2023 section or the refrigerant pressure-temperature data). Numbers are computed by the same locked engine the interactive calculator uses, golden-verified in CI and gated on every deploy.