{
  "schema_version": "1.0",
  "manufacturer": "Mitsubishi Heavy Industries",
  "series": "ZTX",
  "marketing_name_fi": "Kazan Arctic",
  "equipment_pairs": [
    {"indoor": "SRK20ZTX-WA", "outdoor": "SRC20ZTX-WA"},
    {"indoor": "SRK25ZTX-WA", "outdoor": "SRC25ZTX-WA"},
    {"indoor": "SRK35ZTX-WA", "outdoor": "SRC35ZTX-WA"}
  ],
  "archive": {"relative_downloads_folder": "downloads", "max_files": 20},
  "files": [
    {
      "priority": 1,
      "file_name": "mhi-ztx-wa-user-rlf012a218-finnish.pdf",
      "relative_path": "downloads/mhi-ztx-wa-user-rlf012a218-finnish.pdf",
      "sha256": "d068dac2e69f95814533d10bd6ab7c59021b74b65e6968130d5b8ba9f29ef7de",
      "document_type": "owner_user",
      "title": "Käyttäjän käsikirja / Air-Conditioner User's Manual",
      "status": "unknown",
      "language": "fi",
      "model_match": "listed_variant",
      "document_number": "RLF012A218",
      "first_page_issue_date": "202206",
      "first_page_manufacturer_reference": "RLF012A218",
      "applies_to": ["SRK20ZTX-WA", "SRK25ZTX-WA", "SRK35ZTX-WA"],
      "source_tier": 1,
      "source_url": "https://www.mhi-mth.co.jp/en/products/pdf/rlf012a218_finnish.pdf"
    },
    {
      "priority": 2,
      "file_name": "mhi-kazan-arctic-finnish-brochure.pdf",
      "relative_path": "downloads/mhi-kazan-arctic-finnish-brochure.pdf",
      "sha256": "999e872ade18fe23f63b12eb3cb24965b7e3c7836680a11c42de04dea7f3ab57",
      "document_type": "brochure",
      "title": "Kazan Arctic",
      "status": "unknown",
      "language": "fi",
      "model_match": "family_only",
      "document_number": null,
      "first_page_issue_date": null,
      "first_page_manufacturer_reference": null,
      "applies_to": [],
      "source_tier": 2,
      "source_url": "https://itakylma.fi/application/files/6717/5802/5901/Kazan_Arctic_Esite.pdf",
      "notes": "Finnish marketing brochure. It does not print ZTX typecodes, so it is retained only as Kazan Arctic family guidance."
    },
    {
      "priority": 3,
      "file_name": "mhi-ztx-wa-data-book-23-srk-db-372.pdf",
      "relative_path": "downloads/mhi-ztx-wa-data-book-23-srk-db-372.pdf",
      "sha256": "e70d75d242f0450adb7d2092ebd2bbebd8f9bc6f58786d50a8e2d0744ff08a93",
      "document_type": "engineering",
      "title": "DATA BOOK: INVERTER WALL MOUNTED TYPE",
      "status": "unknown",
      "language": "en",
      "model_match": "exact_pair",
      "document_number": "'23 SRK-DB-372",
      "first_page_issue_date": null,
      "first_page_manufacturer_reference": "Manual No. '23 SRK-DB-372",
      "applies_to": ["SRK20ZTX-WA/SRC20ZTX-WA", "SRK25ZTX-WA/SRC25ZTX-WA", "SRK35ZTX-WA/SRC35ZTX-WA"],
      "source_tier": 3,
      "source_url": "https://bvtpartners.com/wp-content/uploads/2025/05/Mitsubishi_SRK20_35ZTX-WA_SRC20_35ZTX-WA_Data_book.pdf",
      "notes": "MHI-branded Data Book, 74 pages. It explicitly covers all three pairs and incorporates indoor and outdoor installation sections; it is not titled a Technical Manual."
    },
    {
      "priority": 4,
      "file_name": "mhi-ztx-wa-wifi-rsa012a135-finnish.pdf",
      "relative_path": "downloads/mhi-ztx-wa-wifi-rsa012a135-finnish.pdf",
      "sha256": "19c10b8b13e9c1939421abac86377d05bc9a05cd871db27ecbe000682efde112",
      "document_type": "controller",
      "title": "Langattoman LAN -liitannan kayttoopas",
      "status": "unknown",
      "language": "fi",
      "model_match": "listed_variant",
      "document_number": "RSA012A135",
      "first_page_issue_date": null,
      "first_page_manufacturer_reference": "RSA012A135",
      "applies_to": ["ZTX Nordic series"],
      "source_tier": 1,
      "source_url": "https://www.mhi-mth.co.jp/en/products/pdf/rsa012a135_finnish.pdf",
      "notes": "Official Finnish wireless-LAN connection manual for the ZTX Nordic model; 13 pages."
    },
    {
      "priority": 5,
      "file_name": "mhi-ztx-wa-product-data-srk20-src20-6342.pdf",
      "relative_path": "downloads/mhi-ztx-wa-product-data-srk20-src20-6342.pdf",
      "sha256": "31cd162a22894436821467c132de21e085d705d93f7a332c88fbb5be27b77444",
      "document_type": "technical_data",
      "title": "Product Data sheet for SRK20ZTX-WA / SRC20ZTX-WA",
      "status": "unknown",
      "language": "en",
      "model_match": "exact_pair",
      "document_number": "6342",
      "first_page_issue_date": null,
      "first_page_manufacturer_reference": null,
      "applies_to": ["SRK20ZTX-WA/SRC20ZTX-WA"],
      "source_tier": 1,
      "source_url": "https://mhiae.com/splits/srk20ztx-wa-src20ztx-wa/?pdf=6342"
    },
    {
      "priority": 6,
      "file_name": "mhi-ztx-wa-product-data-srk25-src25-6349.pdf",
      "relative_path": "downloads/mhi-ztx-wa-product-data-srk25-src25-6349.pdf",
      "sha256": "3450f6ceddc25825d55d24e3360d55d4e3dcc57a0e2ae28b4793a284dd83e6b3",
      "document_type": "technical_data",
      "title": "Product Data sheet for SRK25ZTX-WA / SRC25ZTX-WA",
      "status": "unknown",
      "language": "en",
      "model_match": "exact_pair",
      "document_number": "6349",
      "first_page_issue_date": null,
      "first_page_manufacturer_reference": null,
      "applies_to": ["SRK25ZTX-WA/SRC25ZTX-WA"],
      "source_tier": 1,
      "source_url": "https://mhiae.com/splits/srk25ztx-wa-src25ztx-wa/?pdf=6349"
    },
    {
      "priority": 7,
      "file_name": "mhi-ztx-wa-product-data-srk35-src35-6350.pdf",
      "relative_path": "downloads/mhi-ztx-wa-product-data-srk35-src35-6350.pdf",
      "sha256": "11994310f28cdc0958dc9b1bf9c3eae66dc5f8fcc1ed0f002c0cbb11d1d985b2",
      "document_type": "technical_data",
      "title": "Product Data sheet for SRK35ZTX-WA / SRC35ZTX-WA",
      "status": "unknown",
      "language": "en",
      "model_match": "exact_pair",
      "document_number": "6350",
      "first_page_issue_date": null,
      "first_page_manufacturer_reference": null,
      "applies_to": ["SRK35ZTX-WA/SRC35ZTX-WA"],
      "source_tier": 1,
      "source_url": "https://mhiae.com/splits/srk35ztx-wa-src35ztx-wa/?pdf=6350"
    }
  ],
  "gaps": [
    "No standalone ZTX installation manual found; the verified Data Book contains indoor and outdoor installation sections.",
    "No verified ZTX Technical Manual or Service Manual found."
  ]
}