• Complete MRCOOL DIY 5th Gen 55,000 BTU 6-zone mini-split kit with condenser, ceiling cassette air handlers, pre-charged line sets, and remote controls — full ductless HVAC system for DIY installation.
  • Front view of MRCOOL DIY 5th Gen 55,000 BTU multi-zone outdoor condenser — high-efficiency ductless mini-split heat pump.
  • Side view of MRCOOL DIY-MULTI6-55HP230D-O outdoor condenser showing dual-fan airflow and durable metal cabinet design.
  • MRCOOL DIY 5th Gen condenser rear panel showing Quick-Connect® refrigerant ports for easy plug-and-play installation.
  • MRCOOL DIY 5th Gen Gold Fin® condenser close-up — corrosion-resistant finish for long-lasting outdoor performance.
  • MRCOOL DIY 12K BTU ceiling cassette air handler installed flush with ceiling — compact and quiet mini-split zone unit.
  • MRCOOL DIY 12K BTU ceiling cassette front grille showing 4-way directional airflow vents for even air distribution.
  • MRCOOL DIY 18K BTU ceiling cassette air handler installed in living area — efficient climate control for large spaces.
  • MRCOOL Quick-Connect® pre-charged line set — no vacuum or charging required for DIY mini-split installation.
  • MRCOOL DIY 5th Gen line set connected between condenser and ceiling cassette air handler — simple push-and-seal install.
  • MRCOOL DIY Follow Me® remote control for mini-split air handler — wireless temperature tracking and mode control.
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6 Zone Bundle (New for 2025)

MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (9K + 9K + 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 (9K + 9K + 12K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes

$12,436.00
$12,436.00 $15,514.00
You Save: $3,078.00
SALE Sold out
Shipping calculated at checkout.
CHOOSE YOUR LINE SET LENGTH:
Each pre-charged line set includes the correct length communication wire.
Total Bundle Price: $12,436.00

SKUDIYM655090912121212-CC

Type55K

Refrigerant Type: R-454B

In stock
Ready to ship
Free delivery*
Ships in 1–2 business days
Estimated arrival: Feb 13 – Feb 15
Based on order date & typical delivery times
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PRODUCT DESCRIPTION

MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (9K + 9K + 12K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner & Heat Pump with Ceiling Cassettes

Experience total home comfort with the MRCOOL DIY 5th Gen 55,000 BTU 6-Zone Ductless Mini-Split System — the ultimate DIY climate solution for large homes, shops, and offices. This complete setup pairs a powerful 55K BTU condenser with six low-profile ceiling cassette air handlers (9K + 9K + 12K + 12K + 12K + 12K), delivering efficient zoned heating and cooling with no professional installation required.

With Quick-Connect® pre-charged line sets, advanced Wi-Fi control, and an industry-leading 22 SEER2 efficiency rating, this MRCOOL system offers premium performance, whisper-quiet operation, and smart home integration through Alexa or Google Assistant.

Key Features & Benefits

  • ✔ 6-Zone configuration: (9K + 9K + 12K + 12K + 12K + 12K) ceiling cassette air handlers.
  • ✔ 22 SEER2 / 10.6 HSPF2-4 energy efficiency for reduced power costs.
  • ✔ Heats to −13°F and cools to 122°F for true four-season comfort.
  • ✔ Quick-Connect® pre-charged R-454B line sets — no vacuuming or refrigerant handling required.
  • ✔ Ceiling cassette design blends seamlessly into ceilings for a low-profile look.
  • ✔ Wi-Fi, Alexa, and Google Assistant control via MRCOOL SmartHVAC App.
  • ✔ DIYPro® cable included — eliminates electrical conduit needs for faster installation.
  • ✔ Gold Fin® anti-corrosion coating protects against outdoor elements.
  • ✔ Follow Me® remote sensor maintains the perfect temperature near you.
  • ✔ Energy Star, AHRI, and ETL Certified — proven efficiency and safety.
💡 Pro Tip: Each MRCOOL DIY ceiling cassette includes the WMK-19 Smart HVAC Wi-Fi Controller. Simply plug it into the air handler for instant app access via MRCOOL or SmartHVAC. Schedule temperature changes, monitor performance, and control your system hands-free with Alexa or Google Assistant.

Technical Specifications

  • Brand / Series: MRCOOL DIY 5th Gen Multi-Zone Mini-Split
  • Outdoor Model: DIY-MULTI6-55HP230D-O
  • Indoor Models: Ceiling Cassettes (9K + 9K + 12K + 12K + 12K + 12K)
  • Total Capacity: 55,000 BTU Heating / 47,000 BTU Cooling
  • Zones: 6
  • Refrigerant: R-454B (Pre-Charged Quick-Connect)
  • Efficiency: SEER2 22 | EER2 12 | HSPF2-4 10.6 | HSPF2-5 8.5
  • Voltage: 208/230V, 1 Phase, 60 Hz
  • Operating Range: Heat down to −13°F | Cool up to 122°F
  • Sound Level: 64 dBA (Outdoor Unit)
  • Compressor: DC Inverter Rotary
  • Max Line Set Length: 221.4 ft total combined
  • Certifications: Energy Star, AHRI, ETL, UL, Intertek 5031495
  • Warranty: 5-Year Parts | 7-Year Compressor | Limited Lifetime with MRCOOL Care registration
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