{"product_id":"mrcool-diy-5th-gen-4-zone-42-000-btu-ceiling-cassette-ductless-mini-split-air-conditioner-heat-pump-9k-9k-12k-12k-diy4-bc-48hp09091212","title":"MRCOOL DIY 5th Gen 4-Zone 42,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner \u0026 Heat Pump (9K+9K+12K+12K), DIY4-BC-48HP09091212","description":"\u003cstyle\u003e\n.iron-theme{--black:#0b0b0b;--gray:#6b7280;--red:#c1121f;--red2:#e11d2e;--border:#e5e7eb;--soft:#f8fafc;font-family:Arial,Helvetica,sans-serif;color:var(--black);max-width:1100px;margin:0 auto;line-height:1.7;}\n.shell{border:1px solid var(--border);border-radius:16px;overflow:hidden;background:#fff;box-shadow:0 10px 28px rgba(0,0,0,.08);}\n.top{padding:24px;} .kicker{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--gray);margin:0 0 8px;}\n.sub{margin:12px 0 0;font-size:15px;max-width:100ch;}\n.stripe{height:8px;background:linear-gradient(90deg,var(--red) 0%,var(--red) 70%,var(--red2) 100%);}\n.content{padding:24px;background:var(--soft);}\n.card{border:1px solid var(--border);border-radius:16px;background:#fff;padding:20px;margin:18px 0;box-shadow:0 8px 22px rgba(0,0,0,.06);}\nh2{margin:0 0 12px;font-size:19px;font-weight:900;text-transform:uppercase;display:flex;align-items:center;gap:10px;}\nh2:before{content:\"\";width:10px;height:10px;background:var(--red);border-radius:2px;}\nul{margin:0;padding-left:20px;} ul li{margin:8px 0;}\ntable{width:100%;border-collapse:collapse;font-size:14px;}\nth, td{border:1px solid var(--border);padding:10px;text-align:left;}\nth{background:#f3f4f6;font-size:12px;text-transform:uppercase;font-weight:900;}\n.callout{border:1px dashed rgba(193,18,31,.5);background:rgba(193,18,31,.06);border-radius:12px;padding:14px;font-size:14px;margin-top:12px;}\n\u003c\/style\u003e\n\u003csection aria-label=\"MRCOOL DIY 5th Gen 4-Zone Ceiling Cassette Mini Split\" class=\"iron-theme\"\u003e\n\u003cdiv class=\"shell\"\u003e\n\u003cdiv class=\"top\"\u003e\n\u003cp class=\"kicker\"\u003e42,000 BTU Connected Capacity • Compact Plus Balanced Zoning • 6-Zone Capable Condenser\u003c\/p\u003e\n\u003ch2\u003eMRCOOL® DIY® 5th Gen 4-Zone Ceiling Cassette Mini Split (9K+9K+12K+12K)\u003c\/h2\u003e\n\u003cp class=\"sub\"\u003eThe \u003cstrong\u003eMRCOOL® DIY® 5th Generation 42,000 BTU 4-Zone Ceiling Cassette Mini Split\u003c\/strong\u003e pairs a 6-zone capable 48K BTU condenser with two matched 9K and two matched 12K OuttaSight® one-way ceiling cassettes. Two bedrooms round out this system alongside two evenly sized larger rooms, with headroom to add two more zones later. Each cassette mounts flush between 16\" ceiling joists, including pre-manufactured I-joists, so no wall space is surrendered to equipment. Ships with 25 ft pre-charged line sets on every zone; longer runs available on request.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stripe\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch2\u003eSystem Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Plus Balanced Zoning:\u003c\/strong\u003e Two matched 9K bedroom cassettes at 400 sq. ft. each, plus two matched 12K units at up to 550 sq. ft. each.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlush Ceiling Integration:\u003c\/strong\u003e Low-profile cassettes fit between 16\" joists for a clean architectural finish — no ductwork, no wall penetrations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMajor Expansion Headroom:\u003c\/strong\u003e The 48K condenser supports up to six zones, leaving two ports open for future handlers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue DIY Installation:\u003c\/strong\u003e Patented pre-charged Quick Connect® line sets eliminate vacuuming, charging, and professional trade labor. Every line set in this kit includes the DIYPro® cable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElevation Filter Access:\u003c\/strong\u003e The panel lowers on demand so filters can be cleaned without dismantling the unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Control:\u003c\/strong\u003e Wireless remotes, the SmartHVAC app for iOS and Android, plus Amazon Alexa and Google Assistant support out of the box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × DIY-MULTI6-48HP230D-O — 48K BTU Multi-Zone Condenser, 230V (6-zone capable)\u003c\/li\u003e\n\u003cli\u003e2 × DIYCASSETTE09HP-230D25-O — 9K BTU OuttaSight® One-Way Ceiling Cassette, 230V\u003c\/li\u003e\n\u003cli\u003e2 × DIYCASSETTE12HP-230D25-O — 12K BTU OuttaSight® One-Way Ceiling Cassette, 230V\u003c\/li\u003e\n\u003cli\u003e4 × Pre-charged 25 ft 1\/4\" × 3\/8\" Quick Connect® line sets with DIYPro® cable\u003c\/li\u003e\n\u003cli\u003eWireless remotes, mounting hardware, and installation documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch2\u003eCondenser Specifications — DIY-MULTI6-48HP230D-O\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSEER2 \/ EER2\u003c\/th\u003e\n\u003ctd\u003e21.8 \/ 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHSPF2-4 \/ HSPF2-5\u003c\/th\u003e\n\u003ctd\u003e10.0 \/ 7.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCooling \/ Heating Capacity\u003c\/th\u003e\n\u003ctd\u003e43,000 BTU \/ 48,000 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTonnage\u003c\/th\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eZone Capacity\u003c\/th\u003e\n\u003ctd\u003e6 (4 used in this kit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrical\u003c\/th\u003e\n\u003ctd\u003e208–230V, 1 Phase, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Fuse Breaker \/ MCA\u003c\/th\u003e\n\u003ctd\u003e45A \/ 40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRefrigerant\u003c\/th\u003e\n\u003ctd\u003eR-454B, 148.15 oz (pre-charged)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompressor \/ Inverter\u003c\/th\u003e\n\u003ctd\u003eRotary \/ DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSound Level\u003c\/th\u003e\n\u003ctd\u003e64 dBA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Total Line Set Length\u003c\/th\u003e\n\u003ctd\u003e221.4 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet Dimensions (D×H×W)\u003c\/th\u003e\n\u003ctd\u003e16.34\" × 52.48\" × 37.48\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet Weight\u003c\/th\u003e\n\u003ctd\u003e223.77 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch2\u003eZone Configuration\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eZone\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eCapacity \u0026amp; Coverage\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZone 1\u003c\/td\u003e\n\u003ctd\u003eDIYCASSETTE09HP-230D25-O\u003c\/td\u003e\n\u003ctd\u003e9,000 BTU — up to 400 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZone 2\u003c\/td\u003e\n\u003ctd\u003eDIYCASSETTE09HP-230D25-O\u003c\/td\u003e\n\u003ctd\u003e9,000 BTU — up to 400 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZone 3\u003c\/td\u003e\n\u003ctd\u003eDIYCASSETTE12HP-230D25-O\u003c\/td\u003e\n\u003ctd\u003e12,000 BTU — up to 550 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZone 4\u003c\/td\u003e\n\u003ctd\u003eDIYCASSETTE12HP-230D25-O\u003c\/td\u003e\n\u003ctd\u003e12,000 BTU — up to 550 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp style=\"font-size:14px;margin-top:12px;\"\u003eAll zones use 1\/4\" liquid and 3\/8\" suction lines. Cassettes measure 50.31\"W × 13.19\"D × 8.98\"H and weigh 45 lbs each. Air flow is 1-Way with Swing Technology and reusable filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch2\u003eEngineering \u0026amp; Warranty\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold Fin® Corrosion Protection\u003c\/strong\u003e against humidity and coastal salt exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Inverter Drive\u003c\/strong\u003e scales output to match thermal load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eR-454B Refrigerant\u003c\/strong\u003e — more efficient and eco-friendly than R-410A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e Intertek listed 5031495, UL Listed, ETL Listed, ENERGY STAR® certified, AHRI certified.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 5-year parts and 7-year compressor coverage, eligible for the MRCOOL® Care Program.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"callout\"\u003e\n\u003cstrong\u003eShipping restrictions:\u003c\/strong\u003e Ceiling cassettes cannot be shipped to Guam, Puerto Rico, or the U.S. Virgin Islands.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eProposition 65 Warning:\u003c\/strong\u003e This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"MRCOOL","offers":[{"title":"Default Title","offer_id":53652320452973,"sku":"DIY4-BC-48HP09091212","price":10526.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0967\/6996\/6445\/files\/MRCOOL_DIY_5th_Gen_4-Zone_42_000_BTU_Ceiling_Cassette_Ductless_Mini_Split_Air_Conditioner_Heat_Pump_9K_9K_12K_12K_DIY4-BC-48HP09091212.png?v=1786212437","url":"https:\/\/ironlinetools.com\/products\/mrcool-diy-5th-gen-4-zone-42-000-btu-ceiling-cassette-ductless-mini-split-air-conditioner-heat-pump-9k-9k-12k-12k-diy4-bc-48hp09091212","provider":"Iron Line Tools","version":"1.0","type":"link"}