{
  "category": "Air Handlers",
  "vertical": "hvacr",
  "source": "https://getclaro.ai/resources/attribute-library/hvacr/air-handlers/",
  "status": "editorial-draft",
  "note": "Editorial reference template. Example values show format only and do not describe a real SKU. Not an official ETIM or ECLASS class.",
  "groups": [
    {
      "key": "identity",
      "name": "Identity",
      "check": "Preserve leading zeros and punctuation, validate against the manufacturer record, and check the GTIN check digit and packaging level before linking."
    },
    {
      "key": "technical",
      "name": "Technical specifications",
      "check": "Store the number and unit separately. Convert only when the source unit and test conditions are known."
    },
    {
      "key": "selection",
      "name": "Selection attributes",
      "check": "Map supplier wording to a governed vocabulary only after checking the source text and which variant it applies to."
    },
    {
      "key": "fit",
      "name": "Fit & compatibility",
      "check": "Keep model and series qualifiers. A similar-looking part is not a verified fit until a source says so."
    },
    {
      "key": "evidence",
      "name": "Evidence & compliance",
      "check": "Link the manufacturer document or label with its edition or date. Never copy a certification from a neighboring SKU."
    }
  ],
  "fields": [
    {
      "key": "manufacturer_part_number",
      "label": "Manufacturer Part Number",
      "group": "identity",
      "priority": "core",
      "value_type": "identifier",
      "unit": null,
      "example_format": "AHX-36B-21"
    },
    {
      "key": "nominal_cooling_capacity",
      "label": "Nominal Cooling Capacity",
      "group": "technical",
      "priority": "core",
      "value_type": "number",
      "unit": "ton",
      "example_format": "3 ton (36,000 Btu/h)"
    },
    {
      "key": "rated_airflow",
      "label": "Rated Airflow",
      "group": "technical",
      "priority": "core",
      "value_type": "number",
      "unit": "CFM",
      "example_format": "1,200 CFM"
    },
    {
      "key": "installation_configuration",
      "label": "Installation Configuration",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Multiposition (upflow / downflow / horizontal L/R)"
    },
    {
      "key": "cabinet_width",
      "label": "Cabinet Width",
      "group": "technical",
      "priority": "core",
      "value_type": "number",
      "unit": "in",
      "example_format": "17.5 in"
    },
    {
      "key": "cabinet_dimensions_h_x_w_x_d",
      "label": "Cabinet Dimensions (H x W x D)",
      "group": "technical",
      "priority": "core",
      "value_type": "text",
      "unit": "in",
      "example_format": "47-1/2 x 17-1/2 x 21-7/16 in"
    },
    {
      "key": "voltage_phase_frequency",
      "label": "Voltage / Phase / Frequency",
      "group": "technical",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "208/230 V, 1 Ph, 60 Hz"
    },
    {
      "key": "design_refrigerant",
      "label": "Design Refrigerant",
      "group": "fit",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "R-454B"
    },
    {
      "key": "blower_motor_type",
      "label": "Blower Motor Type",
      "group": "selection",
      "priority": "differentiating",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Variable-speed ECM"
    },
    {
      "key": "coil_rows_fins_per_inch",
      "label": "Coil Rows / Fins Per Inch",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "text",
      "unit": null,
      "example_format": "3 rows, 14 FPI"
    },
    {
      "key": "metering_device",
      "label": "Metering Device",
      "group": "selection",
      "priority": "differentiating",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Factory-installed TXV"
    },
    {
      "key": "refrigerant_line_connection_sizes",
      "label": "Refrigerant Line Connection Sizes",
      "group": "fit",
      "priority": "differentiating",
      "value_type": "text",
      "unit": "in",
      "example_format": "3/8 in liquid / 3/4 in vapor, sweat"
    },
    {
      "key": "filter_size_and_rack_type",
      "label": "Filter Size and Rack Type",
      "group": "fit",
      "priority": "differentiating",
      "value_type": "text",
      "unit": "in",
      "example_format": "16 x 20 x 1 in, internal rack"
    },
    {
      "key": "approved_electric_heat_kit_range",
      "label": "Approved Electric Heat Kit Range",
      "group": "fit",
      "priority": "differentiating",
      "value_type": "text",
      "unit": "kW",
      "example_format": "5-15 kW, field-installed kits"
    },
    {
      "key": "ahri_certified_reference_number",
      "label": "AHRI Certified Reference Number",
      "group": "evidence",
      "priority": "channel",
      "value_type": "identifier",
      "unit": null,
      "example_format": "201234567 (matched system, AHRI 210/240)"
    },
    {
      "key": "safety_certification",
      "label": "Safety Certification",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "cETLus, UL/CSA 60335-2-40"
    },
    {
      "key": "gtin_upc",
      "label": "GTIN / UPC",
      "group": "identity",
      "priority": "channel",
      "value_type": "identifier",
      "unit": null,
      "example_format": "012345603617"
    },
    {
      "key": "country_of_origin",
      "label": "Country of Origin",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "United States"
    }
  ],
  "evidence_columns": [
    "raw_value",
    "normalized_value",
    "source_uri",
    "source_page_or_row",
    "confidence",
    "review_state",
    "last_verified"
  ],
  "normalization_examples": [
    {
      "attribute": "Installation Configuration",
      "variants": [
        "Multiposition",
        "Multi-Position",
        "Multipoise",
        "MP",
        "4-Way",
        "Up/Down/Horiz"
      ],
      "normalized": "Multiposition (Upflow / Downflow / Horiz L/R)"
    },
    {
      "attribute": "Nominal Cooling Capacity",
      "variants": [
        "36",
        "3 Ton",
        "36,000 BTU/h",
        "36 MBH",
        "3.0T",
        "36K"
      ],
      "normalized": "3 ton (36,000 Btu/h)"
    },
    {
      "attribute": "Voltage / Phase / Frequency",
      "variants": [
        "208/230-1-60",
        "230V 1PH",
        "1/60/208-230",
        "208-230/1/60",
        "208-230V/1ph/60Hz"
      ],
      "normalized": "208/230 V, 1 Ph, 60 Hz"
    }
  ]
}