Take full control of comfort in every room with the MRCOOL DIY 5th Gen 36 K BTU 5-Zone Ductless Mini Split System with Ceiling Cassettes (6 K + 9 K + 9 K + 9 K + 9 K).
Designed for homeowners who want professional-grade HVAC without hiring a contractor, this system delivers quiet, efficient heating and cooling across five zones — all with simple DIY installation.

The system includes:

• One 6 K BTU cassette (~250 sq ft)

• Four 9 K BTU cassettes (~375 sq ft each)
  All powered by a 36 K BTU 23 SEER2 condenser engineered for year-round comfort.

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⚙️ Key Features

✅ DIY Installation — No Vacuum Pump Required

Patented Quick Connect® Line Sets come pre-charged with eco-friendly R-454B refrigerant, so you can install confidently without special tools or HVAC experience.

🌡️ Smart Comfort Control

Use the MRCOOL SmartHVAC App or voice assistants like Amazon Alexa and Google Home to manage each zone, set schedules, and monitor performance.

💨 Low-Profile Ceiling Cassette Design

Recessed, discreet air handlers fit between standard 16-inch joists, providing powerful airflow and whisper-quiet operation — ideal for both retrofits and new builds.

♻️ Energy Efficient & Eco-Safe

High-efficiency DC inverter technology and the new R-454B refrigerant reduce environmental impact while delivering lower operating costs.

🔒 Reliable Performance & Warranty

• 7-Year Compressor Warranty

• 5-Year Parts Warranty

• Optional Lifetime Coverage via the MRCOOL Care Program
  Gold Fin® coating protects the condenser from corrosion and coastal wear.

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💡 Why Choose MRCOOL DIY 5th Gen Ceiling Cassettes

• Heat & cool up to 1,500 sq ft across five zones

• Compatible with both ceiling and wall air handlers

• Auto, Sleep, Dehumidify modes for precision comfort

• Wi-Fi and app integration for real-time control

• Quiet mode and filter reminders for easy maintenance

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📦 What’s Included

• (1) 36 K BTU MRCOOL DIY 5th Gen Condenser

• (1) 6 K BTU Ceiling Cassette

• (4) 9 K BTU Ceiling Cassettes

• Pre-charged DIY Quick Connect Line Sets & Couplers

• Remote Controls & Installation Manuals

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⚡ Technical Specifications

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🌬️ Performance & Comfort Features

• Multi-room zoning for balanced climate control

• Auto mode adjusts cooling/heating as needed

• Dehumidify mode for humid seasons

• Sleep mode for energy savings overnight

• Quiet operation and filter alerts for low maintenance

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💬 Customer Benefits

• Install it yourself and save thousands on labor

• 0 % financing available through Affirm

• Free shipping on all orders

• Lifetime technical support from MRCOOL

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🏁 The DIY Comfort Solution

The MRCOOL DIY 5th Gen 36 K BTU 5-Zone Mini Split with Ceiling Cassettes (6 K + 9 K + 9 K + 9 K + 9 K) delivers unmatched flexibility, efficiency, and style.
Enjoy year-round comfort, smart control, and easy installation — without the contractor markup.

Your comfort, your way — powered by MRCOOL DIY Direct.