{"product_id":"zero-r454b-cassette-indoor-unit","title":"Z-MAX R454B Multi-Zone Cassette Indoor Unit — 21 SEER2 Series","description":"\u003cdiv class=\"zero-catalog-detail\" style=\"font-family:inherit;font-size:14px;line-height:1.75;color:inherit\"\u003e\n\u003csection class=\"zero-catalogue-identification\" style=\"font-family:inherit;background:#edf8fc;border-left:4px solid #009dce;padding:16px 18px;margin:18px 0\"\u003e\u003ch2 style=\"font-family:inherit;font-size:20px;color:#0b1d4d;margin:0 0 10px\"\u003eCatalogue identification\u003c\/h2\u003e\n\u003cp style=\"margin:5px 0\"\u003e\u003cstrong\u003eCatalogue row:\u003c\/strong\u003e R454B | Z-MAX Cassette (21 SEER2 catalogue series)\u003c\/p\u003e\n\u003cp style=\"margin:5px 0\"\u003e\u003cstrong\u003eEquipment role:\u003c\/strong\u003e Indoor unit — not a complete system\u003c\/p\u003e\n\u003cp style=\"margin:8px 0 0\"\u003eThe SEER2 number identifies the catalogue row. An indoor unit does not have an independent complete-system SEER2 rating; use the approved indoor\/outdoor combination.\u003c\/p\u003e\n\u003cp style=\"margin:8px 0 0\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0715\/6809\/7435\/files\/ZERO-North-America-Catalogue-ZNA20260626.pdf?v=1792655051#page=3\" target=\"_blank\" rel=\"noopener\"\u003eVerify this catalogue reference (PDF page 3)\u003c\/a\u003e\u003c\/p\u003e\u003c\/section\u003e\n\u003cp\u003eZERO R454B Cassette Indoor Unit is an indoor-unit family for a matched multi-zone heating and cooling system. It is selected with an approved outdoor unit; it is not a complete standalone system.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/zh\/pages\/contact-us\" style=\"color:#009dce;font-weight:700\"\u003eRequest model selection, pricing and availability →\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2 style=\"font-family:inherit;font-size:24px;line-height:1.25;font-weight:700;color:#0b1d4d;margin:32px 0 16px\"\u003eProduct overview\u003c\/h2\u003e\n\u003ch3 style=\"font-family:inherit;font-size:18px;font-weight:700;color:#0b1d4d;margin:24px 0 12px\"\u003eKey specifications\u003c\/h3\u003e\n\u003cdiv style=\"max-width:100%;overflow-x:auto\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font:inherit;font-size:13px\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"padding:12px;text-align:left;background:#edf8fc;color:#0b1d4d;border-bottom:1px solid #d5e6ee\"\u003eItem\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left;background:#edf8fc;color:#0b1d4d;border-bottom:1px solid #d5e6ee\"\u003eCatalogue information\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eProduct family\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eCassette Indoor Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eProduct category\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eMulti-Zone Mini Splits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eEquipment role\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eIndoor unit — requires a matched outdoor system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eRefrigerant\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eR454B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eCapacity \/ configuration\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003e9 \/ 12 \/ 18 \/ 24K Btu\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eEfficiency\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eDepends on matched system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eIndoor format\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eCassette\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eEquipment role\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eIndoor unit; requires an approved outdoor match\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eSystem efficiency\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eDetermined by complete matched combination\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch2 style=\"font-family:inherit;font-size:24px;line-height:1.25;font-weight:700;color:#0b1d4d;margin:32px 0 16px\"\u003eModels and performance\u003c\/h2\u003e\n\u003ch3 style=\"font-family:inherit;font-size:18px;font-weight:700;color:#0b1d4d;margin:24px 0 12px\"\u003eIndoor unit specifications\u003c\/h3\u003e\n\u003cdiv style=\"max-width:100%;overflow-x:auto\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font:inherit;font-size:13px\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"padding:12px;text-align:left;background:#edf8fc;color:#0b1d4d;border-bottom:1px solid #d5e6ee\"\u003eIndoor model\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left;background:#edf8fc;color:#0b1d4d;border-bottom:1px solid #d5e6ee\"\u003eCooling capacity (Btu\/h)\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left;background:#edf8fc;color:#0b1d4d;border-bottom:1px solid #d5e6ee\"\u003eElectrical supply\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eZCV-09HDTB-US\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003e9,000\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003e208\/230V \/ 1Ph \/ 60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eZCV-12HDTB-US\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003e12,000\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003e208\/230V \/ 1Ph \/ 60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eZCV-18HDTB-US\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003e18,000\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003e208\/230V \/ 1Ph \/ 60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003eZCV-24HDTB-US\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003e24,000\u003c\/td\u003e\n\u003ctd style=\"padding:11px 12px;border-bottom:1px solid #e1e9ef\"\u003e208\/230V \/ 1Ph \/ 60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch2 style=\"font-family:inherit;font-size:24px;line-height:1.25;font-weight:700;color:#0b1d4d;margin:32px 0 16px\"\u003eSelection and installation\u003c\/h2\u003e\n\u003cp\u003eVerify the exact indoor and outdoor models, refrigerant, connection count, capacity combination and piping requirements. Connected indoor capacity is not a statement of delivered system capacity.\u003c\/p\u003e\n\u003ch2 style=\"font-family:inherit;font-size:24px;line-height:1.25;font-weight:700;color:#0b1d4d;margin:32px 0 16px\"\u003eDocumentation and certification\u003c\/h2\u003e\n\u003cp\u003eTechnical source: ZERO North America Product Catalogue, edition \u003cstrong\u003eZNA20260626\u003c\/strong\u003e, PDF page 9. Specifications apply to the stated model and configuration. Certification, directory listing and incentive eligibility must be checked against the exact selected or installed combination.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0715\/6809\/7435\/files\/ZERO-North-America-Catalogue-ZNA20260626.pdf?v=1792655051#page=9\" target=\"_blank\" rel=\"noopener\" style=\"color:#009dce;font-weight:700\"\u003eOpen the catalogue specifications ↗\u003c\/a\u003e · \u003ca href=\"\/zh\/pages\/support-documents\" style=\"color:#009dce\"\u003eProduct support documents\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2 style=\"font-family:inherit;font-size:24px;line-height:1.25;font-weight:700;color:#0b1d4d;margin:32px 0 16px\"\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdetails style=\"border-bottom:1px solid #dce7ee;padding:13px 0\"\u003e\u003csummary style=\"font-weight:700;color:#0b1d4d;cursor:pointer\"\u003eHow does this product match the catalogue?\u003c\/summary\u003e\u003cp\u003eR454B | Z-MAX Cassette (21 SEER2 catalogue series). Equipment role: Indoor unit — not a complete system. The SEER2 number identifies the catalogue row. An indoor unit does not have an independent complete-system SEER2 rating; use the approved indoor\/outdoor combination.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border-bottom:1px solid #dce7ee;padding:13px 0\"\u003e\u003csummary style=\"font-weight:700;color:#0b1d4d;cursor:pointer\"\u003eDoes this indoor unit have its own SEER2 rating?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0\"\u003eSEER2 applies to the complete matched system. Use the exact indoor and outdoor model record when comparing performance or checking certification.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border-bottom:1px solid #dce7ee;padding:13px 0\"\u003e\u003csummary style=\"font-weight:700;color:#0b1d4d;cursor:pointer\"\u003eHow do I choose the right model?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0\"\u003eConfirm refrigerant, room load, electrical supply, installation format and the approved outdoor combination with ZERO and your installer.\u003c\/p\u003e\u003c\/details\u003e\u003cp style=\"margin-top:24px\"\u003e\u003ca href=\"\/zh\/pages\/contact-us\" style=\"display:inline-block;background:#009dce;color:#fff;padding:11px 20px;border-radius:5px;font-family:inherit;font-weight:700;text-decoration:none\"\u003eAsk ZERO about this product →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"font-size:13px;margin-top:24px\"\u003eExplore the product range: \u003ca href=\"\/zh\/collections\/mini-split-systems\"\u003eSingle Zone\u003c\/a\u003e · \u003ca href=\"\/zh\/collections\/multi-split\"\u003eMulti Zone\u003c\/a\u003e · \u003ca href=\"\/zh\/collections\/light-commercial\"\u003eLight Commercial\u003c\/a\u003e · \u003ca href=\"\/zh\/collections\/ptac\"\u003ePTAC\u003c\/a\u003e · \u003ca href=\"\/zh\/collections\/rooftop-package\"\u003eRooftop\u003c\/a\u003e · \u003ca href=\"\/zh\/collections\/hvac-accessories\"\u003eAccessories\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"@id\":\"https:\/\/zerohvacr.us\/products\/zero-r454b-cassette-indoor-unit#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How does this product match the catalogue?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"R454B | Z-MAX Cassette (21 SEER2 catalogue series). Equipment role: Indoor unit — not a complete system. The SEER2 number identifies the catalogue row. An indoor unit does not have an independent complete-system SEER2 rating; use the approved indoor\/outdoor combination.\"}},{\"@type\":\"Question\",\"name\":\"Does this indoor unit have its own SEER2 rating?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SEER2 applies to the complete matched system. Use the exact indoor and outdoor model record when comparing performance or checking certification.\"}},{\"@type\":\"Question\",\"name\":\"How do I choose the right model?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Confirm refrigerant, room load, electrical supply, installation format and the approved outdoor combination with ZERO and your installer.\"}}]}\u003c\/script\u003e","brand":"ZERO Technologies","offers":[{"title":"ZCV-09HDTB-US","offer_id":49884402876571,"sku":"ZCV-09HDTB-US","price":0.0,"currency_code":"USD","in_stock":false},{"title":"ZCV-12HDTB-US","offer_id":49892259266715,"sku":"ZCV-12HDTB-US","price":0.0,"currency_code":"USD","in_stock":false},{"title":"ZCV-18HDTB-US","offer_id":49892259299483,"sku":"ZCV-18HDTB-US","price":0.0,"currency_code":"USD","in_stock":false},{"title":"ZCV-24HDTB-US","offer_id":49892259332251,"sku":"ZCV-24HDTB-US","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/6809\/7435\/files\/zero-zna20260626-unit-p3-Im82.png?v=1792655398","url":"https:\/\/zerohvacr.us\/zh\/products\/zero-r454b-cassette-indoor-unit","provider":"ZERO USA Inc","version":"1.0","type":"link"}