{
  "ok": true,
  "dataVersion": "2026.08.06-coolprop-7.2-5f",
  "reviewedAt": "2026-08-06",
  "refrigerants": [
    {
      "id": "r410a",
      "name": "R-410A",
      "modes": [
        "home"
      ],
      "family": "near-azeotropic HFC blend",
      "safetyClass": "A1",
      "glideF": 0.2,
      "a2l": false,
      "minTempF": -40,
      "maxTempF": 150,
      "note": "Use dew for superheat and bubble for subcooling; the difference is small but retained.",
      "points": 39
    },
    {
      "id": "r22",
      "name": "R-22",
      "modes": [
        "home"
      ],
      "family": "HCFC",
      "safetyClass": "A1",
      "glideF": 0,
      "a2l": false,
      "minTempF": -40,
      "maxTempF": 150,
      "note": "Legacy refrigerant. Follow applicable recovery and service rules.",
      "points": 39
    },
    {
      "id": "r32",
      "name": "R-32",
      "modes": [
        "home"
      ],
      "family": "HFC",
      "safetyClass": "A2L",
      "glideF": 0,
      "a2l": true,
      "minTempF": -40,
      "maxTempF": 150,
      "note": "Mildly flammable A2L refrigerant; use equipment and procedures approved for the system.",
      "points": 39
    },
    {
      "id": "r454b",
      "name": "R-454B",
      "modes": [
        "home"
      ],
      "family": "zeotropic HFO/HFC blend",
      "safetyClass": "A2L",
      "glideF": 2.3,
      "a2l": true,
      "minTempF": -40,
      "maxTempF": 130,
      "note": "Use dew for superheat and bubble for subcooling. Mildly flammable A2L refrigerant.",
      "points": 35
    },
    {
      "id": "r407c",
      "name": "R-407C",
      "modes": [
        "home"
      ],
      "family": "zeotropic HFC blend",
      "safetyClass": "A1",
      "glideF": 10.7,
      "a2l": false,
      "minTempF": -40,
      "maxTempF": 150,
      "note": "High-glide blend: dew/bubble curve selection materially changes service calculations.",
      "points": 39
    },
    {
      "id": "r134a",
      "name": "R-134a",
      "modes": [
        "car"
      ],
      "family": "HFC",
      "safetyClass": "A1",
      "glideF": 0,
      "a2l": false,
      "minTempF": -40,
      "maxTempF": 150,
      "note": "Common legacy mobile-A/C refrigerant. Vehicle service data remains authoritative.",
      "points": 39
    },
    {
      "id": "r1234yf",
      "name": "R-1234yf",
      "modes": [
        "car"
      ],
      "family": "HFO",
      "safetyClass": "A2L",
      "glideF": 0,
      "a2l": true,
      "minTempF": -40,
      "maxTempF": 150,
      "note": "Mildly flammable A2L mobile-A/C refrigerant; use dedicated approved service equipment.",
      "points": 39
    }
  ],
  "source": {
    "name": "HVAC PT Charts / CoolProp 7.2.0",
    "url": "https://hvacptcharts.com/",
    "license": "CC BY 4.0",
    "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
    "note": "Repository tables retain reviewed 5°F checkpoints from the published 1°F saturation tables. Values between checkpoints are linearly interpolated."
  }
}