MRCOOL 5th Gen Multi-Zone Ceiling-Mounted Air Handler Builder

Elevate your installation with MRCOOL’s newest 5th Generation Multi-Zone Ceiling Cassette Air Handlers – a low-profile, ENERGY STAR® Certified solution that delivers quiet, efficient comfort without sacrificing floor or wall space. These indoor units are specifically designed for MRCOOL 5th Gen Multi-Zone DIY condensers and connect easily using pre-charged Quick Connect line sets.

Whether you're outfitting a large living room, open-concept office, or high-end commercial space, these cassettes install between standard 16" on-center joists and feature a flush-mount grille that blends seamlessly into the ceiling.

🌟 Product Highlights:

• ✅ ENERGY STAR® Certified for high efficiency and lower utility costs
• 🔧 DIY-Friendly installation with patented Quick Connect fittings
• 📐 Available in 6k, 9k, 12k, and 18k BTU models (230V)
• 📦 Includes a 25 ft. control wire (for use with 25 ft. line sets)
• 🔌 Pairs with MRCOOL 5th Gen DIY R-454B line sets and condensers (sold separately)

📋 Installation & Wiring Notes:

Each ceiling cassette air handler comes with a standard 25-foot control wire in the box. If your installation requires a longer line set (such as 35, 50, or 75 feet), you will need to replace the default 25 ft control wire with the longer wire that comes with your selected line set. This ensures safe and reliable communication between indoor and outdoor units.

Installation requires attic or ceiling access and a structural cavity that allows the cassette to be recessed between ceiling joists. A condensate pump is integrated into the unit for efficient drainage.

⚠️ Note: This listing is for indoor ceiling cassette air handlers only. A 5th Gen MRCOOL Multi-Zone outdoor condenser and line sets with matching control wires are required for a complete installation.