• MRCOOL DIY 5th Gen 55,000 BTU 6-zone condenser unit — energy-efficient heat pump for ceiling cassette mini-split systems.
  • DIY 5th Gen 55,000 BTU 6-Zone Ceiling Cassette Mini-Split System
  • MRCOOL DIY 5th Gen 22 SEER2 Energy Star rated mini-split system — high-efficiency multi-zone heating and cooling.
  • MRCOOL DIY 6-zone mini-split home layout showing ceiling cassette placement for whole-home zoning and comfort.
  • MRCOOL Gold Fin condenser coil coating close-up — corrosion-resistant finish for outdoor HVAC durability.
  • MRCOOL DIY ceiling cassette air handler front view — low-profile design for 6K, 9K, 12K, and 18K multi-zone mini-split systems.
  • Installed MRCOOL DIY 5th Gen ceiling cassette unit flush-mounted in ceiling for discreet multi-zone HVAC comfort.
  • MRCOOL Smart HVAC app control screen with WMK-19 WiFi controller — manage mini-split temperature and schedules remotely.
  • MRCOOL Quick-Connect pre-charged line set for DIY mini-split installation — no vacuum or charging required.
  • MRCOOL DIY Smart HVAC controller compatible with Alexa and Google Assistant for voice-controlled mini-split operation.
  • MRCOOL DIY 5th Gen Limited Lifetime Warranty and brand logo — backed by 5-year parts and 7-year compressor coverage.
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MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (12K + 12K + 12K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes

MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (12K + 12K + 12K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes

$12,335.00 USD
$17,022.30 USD $12,335.00 USD
Save $4,687.30 Sold out
Shipping calculated at checkout.

Choose your Pre-Charged line set Length:

  • Air Handler 1
  • Air Handler 2
  • Air Handler 3
  • Air Handler 4
  • Air Handler 5
  • Air Handler 6

Total Price: $12,335.00

SKUDIYM655121212121212-CC

Type55K
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PRODUCT DESCRIPTION

MRCOOL DIY 5th Gen 55,000 BTU 6-Zone Ceiling Cassette Mini-Split System | DIY-MULTI6-55HP230D-O

The MRCOOL DIY 5th Gen 55,000 BTU 6-Zone Ceiling Cassette Mini-Split is the largest-capacity DIY multi-zone system available. Pair the high-output condenser with your choice of low-profile ceiling cassette air handlers to heat and cool up to six individual zones with whisper-quiet performance, premium efficiency, and true DIY installation.

Mix and match 6K, 9K, 12K, and 18K cassette sizes for bedrooms, living areas, offices, shops, garages, or large open spaces. With up to 22 SEER2 cooling efficiency and HSPF2-4 10.6, this system delivers serious comfort while helping lower utility bills — even in extremes (heats to -13°F, cools to 122°F).

Key Features & Benefits

  • ✔ 6 zones from a single 55K condenser for whole-home or multi-room comfort.
  • ✔ Compatible with 6K / 9K / 12K / 18K ceiling cassette air handlers (flush-mount, low-profile).
  • ✔ Up to 22 SEER2, HSPF2-4 10.6, HSPF2-5 8.5 for excellent efficiency.
  • ✔ Quick-Connect® pre-charged line sets: no vacuum pump, no charging required (sold separately).
  • ✔ DIYPro® cable included — eliminates electrical conduit for easier installs.
  • ✔ Smart control with app, Alexa, and Google Assistant; Energy usage stats & scheduling.
  • ✔ Gold Fin® anti-corrosion coating on the condenser for long life.
  • ✔ Follow Me® remote tracks temp around you for pinpoint comfort.
  • ✔ Energy Star, AHRI, ETL/UL listed for verified performance.
  • ✔ Strong warranty: 5-yr parts, 7-yr compressor, and extended Limited Lifetime with MRCOOL® Care enrollment.
💡 Pro Tip: MRCOOL DIY ceiling cassettes include the WMK-19 Smart HVAC Wi-Fi Controller (plug-and-play). Connect it to your air handler, pair to Wi-Fi, and control the system via the MRCOOL or SmartHVAC apps — with built-in Alexa and Google voice support.

Technical Specifications

  • Brand / Series: MRCOOL — DIY 5th Gen Multi-Zone Mini-Splits
  • Model (Condenser): DIY-MULTI6-55HP230D-O
  • Cooling / Heating Capacity: 47,000 BTU / 55,000 BTU
  • Zones: Up to 6
  • Efficiency: SEER2 22; EER2 12; HSPF2-4 10.6; HSPF2-5 8.5
  • Refrigerant: R-454B (151.68 oz)
  • Electrical: 208/230V, 1-Phase, 60 Hz; Min. Circuit Ampacity 43A; Max Fuse/Breaker 45A
  • Sound Rating: 64 dBA
  • Line Set Compatibility: 25 ft standard; max combined length 221.4 ft
  • Line Sizes: Liquid 1/4"; Suction: (3/8" × 4) and (1/2" × 2)
  • Inverter Compressor: DC Rotary
  • Operating Range: Heat to −13°F; Cool to 122°F
  • Certifications: Energy Star, AHRI, ETL/UL, Intertek Listed 5031495
  • Smart Control: Wi-Fi, App, Alexa, Google Assistant (WMK-19)
  • Color: White
  • Condenser Dimensions (WxHxD): 37.48" × 52.48" × 16.34" (Net)
  • Condenser Weight: 245.81 lbs (Net)
  • Shipping Dimensions (WxHxD): 43.11" × 58.27" × 19.49" (Gross)
  • Shipping Weight: 267.46 lbs (Gross)
  • Warranty: 5-yr parts / 7-yr compressor; Extended Limited Lifetime with MRCOOL® Care (registration required)
  • SKU / UPC / GTIN: DIY-MULTI6-55HP230D-O / 840255587488 / 840255587488

Note: Quick-Connect® pre-charged line sets and ceiling cassette air handlers are sold separately to build your ideal 6-zone package.

Why buy from MRCOOL DIY Direct? Genuine MRCOOL equipment, expert support, and nationwide delivery — perfect for DIYers who want pro-level results without pro-level labor costs.

 

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